variable displacement pump aa11vo - airline hydraulics · 1 brueninghaus hydromatik nominal...

1

Brueninghaus Hydromatik Nominal Pressure Peak Pressure

RA92500/08.97

replaces 01.96

Variable Displacement Pump AA11VOSeries 1, for Open CircuitsAxial Piston, Swashplate Design

Sizes 40...260

RA 92500/08.97

5100 psi(350 bar)

5800 psi(400 bar)

The AA11VO is a swashplate design, variable displace-ment axial piston pump for use in open circuit hydraulicsystems.

Designed principally for use in mobile applications.

The pump operates under self-priming condition, with tankpressurization, or with charge pump (impeller).

A complete range of control and regulating devices isavailable.

The constant power control is externally adjustable, evenwhen the pump is operating.

The pump is available with a through drive to accept a gearpump or a second axial piston pump up to the same size(100 % through drive).

Output flow is proportional to drive speed and pumpdisplacement and is infinitely variable between maximumand zero.

AA11VO 75

RA 92500/08.97

AA11V O / 1 – 62Axial piston unit

Charge pump

Mode of operation

Size

Control device

2-3

Series

1

Indexsizes 40...130 0sizes 190...260 1

Direction of rotation

viewed on shaft end clockwise R

counter-clockwise L

Seals

NBR (nitril-caoutchouc), shaft seal in FPM (fluor-caoutchouc) NFPM (fluor-caoutchouc) V

Shaft end 40 60 75 95 130 190 260

Splined shaft SAE standard for single pump Sstandard for combination pump –1) –1) T

Parallel with key DIN 6885 P1) Use shaft end S for combination pump

Mounting flange

SAE 2-bolt – – – – – C

SAE 4-bolt – – D

Service line connections 40 60 75 95 130 190 260

Pressure and suction port SAE on (opposite) side, 62

Through drive (assembly possibilities see page 30) 40 60 75 95 130 190 260

hub flange

– – N00

SAE A (N 5/8"-9T 16/32 DP) SAE A, 2-bolt K01

SAE B (N 7/8"-13T 16/32 DP) SAE B, 2-bolt K02

SAE B-B (N 1"-15T 16/32 DP) SAE B, 2-bolt K04

SAE C (N 1 1/4"-14T 12/24 DP) SAE C, 2-bolt – K07

SAE C (N 1 1/4"-14T 12/24 DP) SAE D, 4-bolt – – K86

SAE C-C (N 1 1/2"-17T 12/24 DP) SAE C, 2-bolt – – – K24

SAE D (N 1 3/4"-13T 8/16 DP) SAE D, 4-bolt – – – – K17

SAE D (N 1 3/4"-13T 8/16 DP) SAE E, 4-bolt – – – – – K72

Swivel angle indicator

Without swivel angle indicator (no code)Optical swivel angle indicator VElectronical swivel angle indicator E

Variable Displacement Pump AA11VO

Ordering Code

= available= in preparation, available on enquiry

– = not available

1) Technical specifications see page 5

Hydraulic fluidPetroleum oil (no code)

Axial piston unit

Variable swashplate design AA11V

Charge pump (impeller) 1) 40 60 75 95 130 190 260

without charge pump (no code)

with charge pump – – – – L

Mode of operation

Pump in open circuit O

Size

Size 40 60 75 95 130 190 260

Displacement Vg max cm3/rev. 42 58,3 74 93,8 130 192,7 260

in3/rev. 2.56 3.56 4.52 5.72 7.93 11.76 15.87

Control device 40 60 75 95 130 190 260

Constant power control LR LRwith power influence, high pressure related LR3 LR3with load limiting control hydraulic override, negative LG1 LG1

with load limiting control hydraulic override, positive LG2 LG2

with load limiting control electric override 24V, negative LE2 LE2

with pressure cut-off D L . . D

with pressure cut-off, 2 stages E L . . E

with pressure cut-off, remote control G L . . G

with cross sensing control (flow control) C L . . C

with load sensing control S L . . S

with hydr. stroke limiter, neg. control, ∆p=365psi(25 bar) H1 L . . H1

with hydr. stroke limiter, neg. control, ∆p=145psi(10 bar) H5 L . . H5

with hydr. stroke limiter, pos. control, ∆p=365psi(25 bar) H2 L . . H2

with hydr. stroke limiter, pos. control, ∆p=145psi(10 bar) H6 L . . H6

with electrical stroke limiter 24V U2 L . . U2

Constant pressure control DR DR

remote control G DRG

for parallel operation L DRL

load sensing control (flow control) S ● ● ● ● ● ● ● DRS

Hydraulic control, pilot pressure related ∆p=145psi(10 bar) HD1 HD1

∆p=365psi(25 bar) HD2 HD2

pressure cut-off D HD . D

with remote pressure cut-off G HD . G

Electrical control with proportional solenoid 24 V EP2 EP2

pressure cut-off D EP2D

with remote pressure cut-off G EP2G

In case of controls with various additional functions take care of the sequence of the columns. For each column only 1 option is possible!

RA 92500/08.97

4


Vis

cosi

ty v

mm

2 /s (S

US

)

16(80)

36(170)

5 (42)

1600 (7400)

vopt.

VG 22

VG 32

VG 46

VG 68

Temperature t in °F (°C)

VG 100

(-40) (-30) (-20) (-10) (0) (10) (20) (30) (40) (50) (60) (70) (80) (90)(100)(110)

-40 -20 100 120 1400 20 40 60 80 160 180 200 220 240

16001000

600400

200

100

60

40

20

10

5

(7000)(5000)(3000)(2000)

(1000)

(500)

(300)

(150)(200)

(100)

(80)(70)

(60)

(50)

(40)

1000 (4600)

10(60)

(115)

Technical Data

Hydraulic fluidWe request that before starting a project detailed informationabout the choice of pressure fluids and application conditions aretaken from our catalogue sheets RA 90220 (petroleum oil),RA 90221 (environmentally acceptable hydraulic fluids) andRA 90223 (fire resistant hydraulic fluids, HF).When using HF- or environmentally acceptable hydraulic fluidspossible limitations for the technical data have to be taken intoconsideration. If necessary please consult our technical department(please indicate type of the hydraulic fluid used for your application onthe order sheet). The operation with HFA-, HFB- and HFC- hydraulicfluids requires additional special measures.

Operating viscosity rangeIn order to obtain optimum efficiency and service life, werecommend that the operating viscosity (at operating tem-perature) be selected from within the range:

Optimum operating viscosity νopt = 80...170 SUS (16...36 mm2/s)

referred to reservoir temperature (open circuit).

Viscosity limitsThe limiting values for viscosity are as follows:

νmin = 42 SUS (5 mm2/s)short term at a max. permissible temp. of tmax = 240°F (115°C)

νmax = 7400 SUS (1600 mm2/s)short term on cold start (tmin = -40°F / °C)

Please note that the max. fluid temperature is also not exceededin certain areas (for instance bearing area).

At temperatures of -13°F up to -40°F (-25°C up to -40°C) specialmeasures may be required for certain installation positions. Pleasecontact us for further information.

Selection diagram

In order to select the correct fluid, it is necessary to know the operatingtemperature in the reservoir (open circuit) in relation to the ambienttemperature.The hydraulic fluid should be selected so that within the operatingtemperature range, the operating viscosity lies within the optimum rangeν

opt (see shaded section of the selection diagram). We recommend that the

higher viscosity grade is selected in each case.Example: At an ambient temperature of X °F (°C) the operatingtemperature in the reservoir is 140°F (60°C).Within the optimum operating viscosity range ν

opt (shaded area), this

corresponds to ISO viscosity grades VG 46 or VG 68. VG 68 should beselected.

Important : The leakage oil (case drain oil) temperature isinfluenced by pressure and pump speed and is always higher thanthe reservoir temperature. However, at no point in the system maythe temperature exceed 240°F (115°C).If it is not possible to comply with the above conditions because ofextreme operating parameters or high ambient temperaturesplease consult us.

FiltrationThe finer the filtration the better the achieved purity grade of thepressure fluid and the longer the life of the axial piston unit. Toensure the functioning of the axial piston unit a minimum cleanlessclass of:

9 to NAS 16386 to SAE18/15 to ISO/DIS 4406 is necessary.

In this case we recommend, depending on system and applicationfilter element β20 ≥ 100 for the AA11VO.

With the rising differential pressure at the filter element theβ-value must not decrease.

At very high temperatures of the hydraulic fluid (195°F to max.240°F / 90°C to max. 115°C) at least cleanless class

8 to NAS 16385 to SAE17/14 to ISO/DIS 4406 is necessary.

If above mentioned grades cannot be maintained please consultus.

Operating pressure range – inletAbsolute pressure at port S (suction port)

Design without charge pump (impeller) pabs min _______________________________________________________ 12 psi (0,8 bar) pabs max _______________________________________________________ 435 psi (30 bar)

Design with charge pump (impeller) pabs min _________________________________________________________ 9 psi (0,6 bar) pabs max ___________________________________________________________ 30 psi (2 bar)

Operating pressure range – outletPressure at port A or BNominal pressure ______________________________ p

N = 5100 psi (350 bar)

Peak pressure ________________________________ pmax

= 5800 psi (400 bar)

Case drain pressurePermissible case drain pressure at ports T1 or T2

pL __________________________________________________________ 30 psi (2 bar abs.)

A leakage line to the reservoir is necessary.

Housing flushingIn case of operations with the controls EP, HD, DR or with strokelimiters (H., U.) over a longer period (t > 10 min) under zero flowconditions or operation pressures < 220 psi (15 bar) a flushing isnecessary through one of the ports "T1", "T2" or "R" in order toavoid heating of the oil.

Size 40 60 75 95 130 190 260

qV flushing gpm 0,5 0,8 0,8 1,0 1,0 1,3 1,6

(L/min) (2) (3) (3) (4) (4) (5) (6)

(Housing flushing is not necessary for design with impeller)

Temperature t in °F (°C)

Vis

cosi

ty ν

in m

m2 /

s (S

US

)

5


RA 92500/08.97

Calculation of sizeV

g • n • η

vV

g • n • η

vOutput flow qV= gpm L/min

231 1000

Vg • ∆p Vg • ∆pDrive torque T = lb-ft Nm

24 • π • ηmh

20 • π • ηmh

T • n qV • ∆p

Drive power P = = HP5252 1714 • ηt

T • n qV • ∆p= kW

9549 600 • ηt

Vg

= geom. displacement per rev. in in3 (cm3)

∆p = differential pressure in psi (bar)n = speed in rpm

ηv = volumetric efficiencyη

mh= mech-hyd. efficiency

ηt = total efficiency (ηt = ηv • ηmh)

1,2

1,1

1,0

0,90,8 0,9 1,0

pabs = 1 bar

pabs = 1,5 bar

Permissibletorque at V

g max

displacement Vg/Vg max

spee

d n m

ax /n

max

1

Max. perm. speed (speed limit)Max. perm. speed (speed limit) with increased inlet pressurepabs at suction port S or at Vg ≤ Vg max

Mounting positionWith the drive shaft to horizontal position; alternative mountingpositions are possible, please consult us.The pump housing must be filled with fluid during commissioningand during normal operation.For extensive information on the installation position, please readour data sheet RA 90270.

((

(

))

)

Technical Data

Table of values (theoretical values, without considering ηmh and ηv; values rounded)

Size 40 60 75 95 130 190 260Displacement Vg max In3/rev. 2.56 3.56 4.52 5.72 7.93 11.76 15.87

cm3/rev. 42 58.3 74 93.8 130 192.7 260Vg min in3/cm3 0 0 0 0 0 0 0

Max. speed 1) at Vg max nmax 1 rpm 3000 2700 2550 2350 2100 2100 1800Max. perm. speed (speed limit) with increased inlet pressure pabs atsuction port S or at Vg ≤ Vg max (qv ≤ qv max 1) (see diagram below)

nmax perm. rpm 3500 3250 3000 2780 2500 2500 2300

Max. flow2) at nmax 1 (Vg max) qV max 1 gpm 32.2 40.4 48.4 56.4 69.9 103.7 120.0L/min 122 153 183 214 265 393 454

Max. power at qV max 1 (∆p = 5100 psi) Pmax 1 HP 99 124 148 173 214 318 368

(∆p = 350 bar) kW 71 92 110 129 159 236 273 continuous duty (∆p = 5100 psi) TN lb-ft 173 241 306 387 536 795 1073

(∆p = 350 bar) Nm 234 324 412 522 723 1073 1447 max. perm. intermittent (∆p = 5800 psi) Tmax lb-ft 197 274 348 440 609 904 1220

(∆p = 400 bar) Nm 267 370 471 597 826 1225 1654Moment of inertia about drive axis J lbs-ft2 0.1139 0.1946 0.2729 0.4105 0.7546 2.0835

kgm2 0.0048 0.0082 0.0115 0.0173 0.0318 0.0878Weight (approx.) m lbs 62 79 99 117 146 209 276

kg 28 36 45 53 66 95 125

Table of values AA11VLO with charge pump (impeller) (theoretical values, without considering ηmh and ηv; values rounded)

Size 130 190 260Displacement Vg max In3/rev. 7.93 11.76 15.87

cm3 rev. 130 192.7 260Vg min In3/cm3 0 0 0

Max. speed 3) at Vg max nmax 1 rpm 2500 2500 2300Max. flow 2) at nmax 1 (Vg max) qV max 1 gpm 83.2 123.4 153.3

L/min 315 467 580Max. power at qV max 1 (∆p = 5100 psi) Pmax 1 HP 255 379 470

(∆p = 350 bar) kW 190 281 349Moment of inertia about drive axis J lbs-ft2 0.7997

kgm2 0.0337Weight (approx.) m lbs 152 220 287

kg 69 100 1301) The values shown are valid for an absolute pressure (pabs) of 15 psi (1 bar) at the suction inlet S and when operated on petroleum oil.2) 3 % volumetric loss included3) The values shown are valid for an absolute pressure (pabs) of at least 12 psi (0,8 bar) and when operated on petroleum oil.

RA 92500/08.97

6


DR Constant Pressure Control

The constant pressure control maintains the pressure in ahydraulic system constant whithin its control range in spite ofchanging pump flow requirements. The variable pump suppliesonly the volume of fluid required by the consumer. Shouldoperating pressure exceed the set pressure, the pump is automati-cally swivelled back to a smaller angle and the deviation in controlcorrected.In unoperated (zero pressure) condition, the pump is swivelled toits starting position (Vg max) by means of a control spring.

Setting range from 725 to 5100 psi (50 to 350 bar).

Variation: Load sensing control ( DRS)

The load sensing valve is a flow control valve which operates as afunction of the load pressure to regulate the pump displacement inorder to match the requirement of the consumer unit.The pump flow is influenced by the external orifice (control block,throttle) fitted between pump and consumer, but is not affected byload pressure throughout the range below the set pressure.

The valve compares pressure before and after the orifice andmaintains the pressure drop (differential pressure ∆p) across theorifice – and therefore the pump flow – constant.

If differential pressure ∆p increases, the pump is swivelled backtowards Vg min, and if ∆p decreases the pump is swivelled outtowards Vg max until a balance is restored within the valve.

∆porifice

= ppump

– pconsumer

Standard ∆p setting: ........................................... 260 psi (18 bar)∆p may be set within the range ...... 200 to 365 psi (14 to 25 bar)(Please state required setting in clear text).

The standby pressure for zero stroke operation (orifice closed) isinsignificant above the ∆p setting.

The constant pressure control is superimposed on the load sen-sing valve, i.e. the load sensing function operates below the setpressure.

The orifice is not included in the standard supply.

Any relief valve included in a circuit to limit the max. pressure mustbe set to a cracking pressure at least 20 bar above the pressurecontrol setting.

Constant pressure control DR(integral valve) fixed setting;with charge pump (impeller)

T1 T2GAM R

S

Vg max Vg min

M1

Constant pressure controlwith load sensing valve, DRS

GAM X

S

Vg max Vg min

M1

T1 T2R

Setti

ng ra

nge

Flow qV (gpm/ L/min)

Flow qV

orifice

Oper

atin

g pr

ess.

pB (b

ar)

Oper

atin

g pr

ess.

pB i

n ba

r

Oper

atin

g pr

ess.

pB (

psi)

350

300

250

200

150

100

50

0

max

. 145

psi

(10

bar)

5100

4350

3625

2900

2175

1450

725

0

pmax

7


RA 92500/08.97

Variation: Remote constant pressure control ( DRG)

The remote control pressure control can be set by means of aseparately mounted pressure relief valve (1) and a lower pressurecommand value.

Setting range from ...................... 725 to 5100 psi (50 to 350 bar)

Alternatively the system can be started at low operating pressures(stand-by pressure) by actuating a 2/2 control valve (2), alsoseparately mounted.

Both functions can be carried out either singly or in combination(see circuit diagram).

The external valves are not included in delivery volume.

For a separate pressure relief valve (1) we recommend:DBDH 6 (manual actuation) see RA 25402

GAM X

S

Vg max Vg min

M1

max

. 5 m

12

T1 T2R

Variation: Pressure control for parallel operation ( DRL)

The DRL pressure control is suitable for pressure control of severalA11VO axial piston pumps working in parallel.

With an external pressure relief valve (1) the pressure commandvalue for all pumps mounted onto the system can be preset.

Setting range from ...................... 725 to 5100 psi (50 to 350 bar)

Each pump can be disconnected from the system by means of aseparately mounted 3/2 control valve (2).

Provision should be made for the check valves (3) in either thedelivery line (port A) or the pilot line (port X).

The external valves are not included in delivery volume.

For a separate pressure relief valve (1) we recommend:DBDH 6 (manual actuation) see RA 25402

GAM X

S

Vg max Vg min

M1

MA2

MD

Ms

1

2

3

3

T1 T2R

Remote constant pressure control, DRG

Pressure control for parallel operation, DRL

Setti

ng ra

nge

Flow qV (gpm / L/min)

Oper

atin

g pr

ess.

pB (b

ar)

Oper

atin

g pr

ess.

pB (

psi)

350

300

250

200

150

100

50

0

max

. 145

psi

(10

bar)

5100

4350

3625

2900

2175

1450

725

0

pmax

RA 92500/08.97

8


LR Constant Power Control

The constant power control controls the output volume of the pumpin relation to the operating pressure so that, at a constant drivespeed, the preset drive power is not exceeded.

pB • V

g = constant

Optimum power usage is obtained by accurately following thepower hyberbola.

integral pressure cut-offsetting range

Variation: Integral pressure cut-off (LRD)

The pressure cut-off is in effect a constant pressure control whichswivels the pump back to V

g min when the preset operating pressure

is reached.This function overrides the constant power control, i.e. the constantpower control is effective below the preset operating pressure.The valve is integrated into the control housing and is set in thefactory to a fixed pressure.

Setting range from 725 to 5100 psi (50 to 350 bar)

GAM

S

Vg max Vg min

M1

T1 T2R

The output power curve is influenced by the efficiency of the pump.When ordering, state in clear text:– input power P (kW)– input speed n (rpm)– max. output flow q

V max (gpm or L/min)

After all technical details have been clarified, a power diagram canbe produced by computer.

Constant power control with integralpressure cut-off (fixed setting), LRD

pB = operating pressure

Vg = displacement

Displacement

Setting rangestart of controlpsi (bar)

Displacement

Vg max Vg min

GAM

S M1

T1 T2R

Constant power control LR

Operating pressure applies a force on a piston within the controlpiston on to a rocker arm. An externally adjustable spring force isapplied to the other side of the rocker arm to determine the powersetting.Should the operating pressure exceed the set spring force, the pilotcontrol valve is operated via the rocker arm, allowing the pump toswivel towards zero output. This in turn reduces the effectivemoment on the arm of the rocker, thus allowing the operatingpressure to rise in the same ratio by which the output flow isreduced (p

B • V

g = constant).

Oper

atin

g pr

ess.

pB p

si (b

ar)

Oper

atin

g pr

ess.

pB p

si (b

ar)

Vgmin Vgmax

5100(350)

725(50)

max

min

5100 (350)

4350 (300)

3625 (250)

2900 (200)

2175 (150)

1450 (100)

725 (50)

0

4600(320)

725(50)

Vgmin Vgmax

9


RA 92500/08.97

Variation: Load sensing valve ( LRS)

The load sensing valve is a flow control valve which operates as afunction of the load pressure to regulate the pump displacement inorder to match the requirement of the consumer unit.The pump flow is influenced by the external orifice (control block,throttle) fitted between pump and serviced unit, but is not affected byload pressure throughout the range below the power curve.The valve compares pressure before and after the orifice andmaintains the pressure drop (differential pressure ∆p) across theorifice – and therefore the pump flow – constant.If differential pressure ∆p increases, the pump is swivelled backtowards V

g min, and if ∆p decreases the pump is swivelled out

towards Vg max

, until a balance is restored within the valve.

∆porifice

= ppump

– pserviced unit

Standard ∆p setting: ........................................... 260 psi (18 bar)∆p may be set within the range ...... 200 to 365 psi (14 to 25 bar)(Please state required setting in clear text).

The standby pressure for zero stroke operation (orifice closed) isinsignificant above the ∆p setting.

The constant power control and the pressure cut-off are superim-posed on the load sensing valve, i.e. the load sensing functionoperates below the set power hyperbola and set pressure.

The orifice is not included in the standard supply.

Variation: Electrical stroke limiter ( LRU2)

The electrical stroke limiter allows the displacement to be infinitelyvaried or limited as required.The displacement is set by means of the control current generatedby the proportional solenoid.A 24V DC (U2) supply is required for the control of the proportional solenoid.The electrical stroke limiter is overriden by the constant power control,i.e. below the power curve (power hyperbola), displacement isadjusted in relation to the control current. If the set flow or the operatingpressure is such that the power curve is exceeded, the constant powercontrol overrides the stroke limiter and reduces displacement until thepower hyperbola is restored.

LRU2 ➔ Function: V g min to V g max (positive control)As the control current increases, the pump swivels to a largerdisplacement. (Starting position at zero pressure: Vg max)At operating pressure > 435 psi (30 bar) the pump swivels from Vg max

to Vg min (pilot current < start of control).

Start of control at approx.: 200 mA (U2)End of control at approx.: 600 mA (U2)

Insulation class IP 54, control from Vg min to Vg max

A pressure of 435 psi (30 bar) is needed for the control. The oilrequired for this is taken either from the high pressure or from theexternal adjustment pressure at port G (≥ 435 psi / 30 bar).

If the operating pressure is ≥ 435 psi (30 bar) and Vg min > 0 noexternal control pressure is required and port G should be pluggedbefore commissioning. If port G is not to be used then the parts ofthe shuttle valve are to be removed from the pump (see note onrepair instructions RDE 92500-R).

The following are used for control of the proportional solenoid:● Proportional amplifier PV _______ (see RA 95023)● Proportional amplifier VT 2000 ___ (see RA 29908)● Chopper amplifier CV __________ (see RA 95029)

Operating curve LRU2

GAM

Vg max Vg min

S M1

T1 T2RGAM X

S

Vg max Vg min

M1

T1 T2R

orifice

Constant power control with pressure cut-off andload sensing valve, LRDS

Constant power controlwith pressure cut-off andel. stroke limiter, LRDU2(Function: V g min to Vg max )

Pilo

t cur

rent

I in

mA

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

800

600

400

200

Displacement

DisplacementOper

ating

pre

ss. p

B psi

(bar

)

Vgmin Vgmax

RA 92500/08.97

10


Variation: Hydraulic stroke limiter ( LRH...)

The hydraulic stroke limiter allows the maximum displacement tobe infinitely varied or limited as required.Control range Vg max to Vg min .The displacement is set by means of the pilot pressure applied atport Y (max 580 psi / 40 bar).

The hydraulic stroke limiter is overriden by the constant power control,i.e. below the power curve (power hyperbola), displacement isadjusted in relation to pilot pressure. If the set flow or the operatingpressure is such that the power curve is exceeded, the constantpower control overrides the stroke limiter and reduces displacementuntil the power hyperbola is restored.

H1/H5 ➔ Function: V g max to V g min (negative control)As pilot pressure increases the pump swivels towards lowerdisplacement.

Starting position at zero pressure: Vg max

Start of control, (at Vg max), settable ____60 - 145 psi (4 – 10 bar)

When ordering, please state required start of control in clear text.

H1 ➔ pilot pressure increase (Vg max

– Vg min

)__∆p = 365 psi (25 bar)

H2 / H6 ➔ Function: V g min to Vg max (positive control)As pilot pressure increases the pump swivels towards higherdisplacement.Starting position at zero pressure: Vg max

At operating pressure > 435 psi (30 bar) the pump swivels from Vg

max to Vg min (pilot pressure < start of control).

Start of control (at Vg min), settable _____60 - 145 psi (4 – 10 bar)When ordering, please state required start of control in clear text.

H2 ➔ pilot pressure increase (Vg min – Vg max)___ ∆p = 365 psi (25 bar)

Constant power control with pressure cut-offand hydraulic stroke limiter, LRDH1, LRDH5(Function: V g max to Vg min )

GAM Y

Vg max Vg min

S M1

T1 T2R

H6 ➔ pilot pressure increase (Vg min – Vg max)____ ∆p = 10 bar

GAM Y

Vg max Vg min

S M1

T1 T2R

Constant power control with pressure cut-off and hydr.stroke limiter , LRDH2, LRDH6 (Function: V g min to V g max)

A pressure of 435 psi (30 bar) is needed for the control. The oilrequired for this is taken either from the high pressure or from theexternal control pressure at port G (≥ 435 PSI / 30 bar).


H5 ➔ pilot pressure increase (Vg max

– Vg min

)__∆p = 145 psi (10 bar)

Pilo

t pre

ss. p

St (b

ar)

Setti

ng ra

nge

Displacement

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

201510

4

Pilo

t pre

ss. p

St (p

si)290

220145

60

Displacement

Pilo

t pre

ss. p

St (b

ar)

Setti

ng ra

nge

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

353025201510

4 Pilo

t pre

ss. p

St (p

si)510

435365290220145

60

Pilo

t pre

ss. p

St (b

ar)

Setti

ng ra

nge

Pilo

t pre

ss. p

St (p

si)

Pilo

t pre

ss. p

St (p

si)

Displacement

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

201510

4

290220145

60

Displacement

Pilo

t pre

ss. p

St (b

ar)

Se

tting

rang

e

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

353025201510

4

510435365290220145

60

11


RA 92500/08.97

GAM

S

Vg max Vg min

Z

M1

LR

pHD

T1 T2R

GAM

S

Vg max Vg min

Z

M1

pHD

T1 T2R

GAM

S

Vg max Vg min

Z

M1

T1 T2R

GAM

S

Vg max Vg min

Z

M1

T1 T2R

Power control with pressure cut-offand cross sensing control, LRDC

Power influence, high pressure relatedwith pressure cut-off, LR3D

Control of Power SettingVariation: Cross sensing control ( LRC)Cross sensing control is a summation power control system,whereby the total power, both of the AA11VO and of a pumpmounted onto the through drive and also power controlled, are keptconstant.If a pump is operating at pressures below the start of the controlcurve setting, then the surplus power not required, in a critical caseup to 100%, becomes available to the other pump. Total power isthus divided between two systems as required.Any power being released by means of pressure cut-off or otheroverload is not taken into account.

Variation: Power influence, high pressure related ( LR3)Power influence, high pressure related is a summation powercontrol system, whereby the power setting is loaded with theoperating pressure of a fixed pump mounted onto the system(port Z).The AA11VO can thus be set to 100% of the total power. The powersetting of the AA11VO will only be reduced if the operating pressureof the constant pump increases dependent on load. The relevantpower drop is brought about by adjustment of the piston area.

Variation: Load limiting control, (LG1, LG2)In contrast to summation power control, load limiting control worksby loading the power control with an external pilot pressure. Thispilot pressure acts on the adjustment spring of the power regulatorvia port Z.The mechanically adjusted basic setting can be varied by meansof different pilot pressure settings, enabling different mode settings.If the pilot pressure signal is then varied by means of a powerlimiting regulator the total hydraulic power is equal to the drive inputpower. The pilot pressure used for power control is generated byan external control element that is not a component part of theAA11VO. (See also data sheet RA 95072, electronic load limitingcontrol for excavators, GLB).

LG1, load limiting control with negative power controlLoad limiting control with negative power control LG1 works by theforce resulting from the pilot pressure acting against the adjustmentspring of the power regulator, i.e. increasing the pilot pressurereduces the power output.

LG2, load limiting control with positive power controlLoad limiting control with positive power control LG2 works by theforce resulting from the pilot pressure supporting the adjustmentspring of the power regulator, i.e. an increase in pilot pressureincreases the power output.

Control of power setting

Power control withpressure cut-offand load limitingcontrol, negative,LG1D

Power control withpressure cut-offand load limitingcontrol, positive,LG2D

Oper

atin

g pr

essu

re (A

A11V

O)

RA 92500/08.97

12


HD Hydraulic Control,Pilot Pressure Related

The pilot pressure related hydraulic control allows stepless setting of thepump displacement in relation to pilot pressure. Control is proportionalto the pilot pressure applied to port Y (max. 580 psi / 40 bar).

Control from Vg min

to Vg max

.

In unoperated (zero pressure) condition, the pump is swivelled toits starting position (Vg max) by means of a control spring.At operating pressure > 435 psi (30) bar the pump swivels fromVg max to Vg min (pilot pressure < start of control).A pressure of 435 psi (30 bar) is needed for the control. The oilrequired for this is taken either from the high pressure or from theexternal control pressure at port G (≥ 435 psi / 30 bar).


Variation: Pressure cut-off (HD1D, HD2D)

The pressure cut-off is in effect a constant pressure control whichswivels the pump back to Vg min when the preset operating pressureis reached.This function overrides the hydraulic control, i.e. the hydrauliccontrol is effective below the preset operating pressure.The valve is integrated into the control housing and is set in thefactory to a fixed pressure.

Setting range from 725 - 5100 psi (50 to 350 bar)

Hydraulic control,pilot pressure related, HD1, HD2

HD1Pilot pressure increase Vg min-Vg max _______ ∆p = 145 psi (10 bar)Start of control, settable ___________ 60 - 145 psi (4 - 10 bar)


GAM

S

Vg max Vg min

Y

M1

T1 T2R

HD2Pilot pressure increase Vg min-Vg max ________ ∆p = 365 psi (25 bar)Start of control, settable ____________ 60 - 145 psi (4 - 10 bar)


Displacement

Hydraulic control,pilot pressure related,with integral pressure cut-off (fixed setting),HD1D, HD2D

GAM Y

S

Vg max Vg min

M1

T1 T2R

Pilo

t pre

ss. p

St (b

ar)

Setti

ng ra

nge

Pilo

t pre

ss. p

St (b

ar)

Setti

ng ra

nge

Displacement

Integral pressure cut-offsetting range

Displacement

Oper

atin

g pr

ess.

pB p

si (b

ar)

max5100(350)

min725(50)

VgmaxVgmin

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

201510

4

Pilo

t pre

ss. p

St (p

si)290

220145

60

0 0.2 0.4 0.6 0.8 1.0Vgmin Vg Vgmax

Vgmax

353025201510

4 Pilo

t pre

ss. p

St (p

si)510

435365290220145

60

13


RA 92500/08.97

Variation: Pressure cut-off (EP.D)

The pressure cut-off is in effect a constant pressure control whichswivels the pump back to Vg min when the preset operating pressureis reached.This function overrides the EP control, i.e. the EP control iseffective below the preset operating pressure.The valve is integrated into the control housing and is set in thefactory to a fixed pressure.

Setting range from 725 - 5100 psi (50 - 350 bar)

GAM

S

Vg max Vg min

M1

T1 T2R

Electrical control with proportional solenoidand integral pressure cut-off (fixed setting) ,EP2D

Note:Pumps with EP control may only be mounted within an oil reservoirwhen using petroleum hydraulic oils and with oil temperatures inthe reservoir of max. 80° C.

Displacement

The following are used for control of the proportional solenoid:● Proportional amplifier PV _______ (see RA 95023)● Proportional amplifier VT 2000 ___ (see RA 29908)● Chopper amplifier CV __________ (see RA 95029)

GAM

S

Vg max Vg min

M1

T1 T2R

Pilo

t cur

rent

I in

mA

Electrical control with proportional solenoid, EP

EP Electrical Controlwith Proportional Solenoid

Electrical control allows stepless and programmable setting of thepump displacement. Control is proportional to solenoid force(current strength). The control force at the control piston isgenerated by a proportional solenoid valve.A 24V DC (EP2) supply is required for the control of the proportionalsolenoid.

Start of control at approx.: 200 mA (EP2)End of control at approx.: 600 mA (EP2)

Insulation class IP 54, control from Vg min

to Vg max

In unoperated (zero pressure) condition, the pump is swivelled toits starting position (V

g max) by means of a control spring.

At operating pressure > 435 psi (30 bar) the pump swivels fromVg max to Vg min (pilot current < start of control).A pressure of 435 psi (30 bar) is needed for the control. The oilrequired for this is taken either from the high pressure or from theexternal control pressure at port G (≥ 435 psi / 30 bar).If the operating pressure is ≥ 435 psi (30 bar) and Vg min > 0 noexternal control pressure is required and port G should be pluggedbefore commissioning. If port G is not to be used then the parts ofthe shuttle valve are to be removed from the pump (see note onrepair instructions RDE 92500-R).

Operating curve: EP2

Integral pressure cut-offsetting range

Displacement

Oper

atin

g pr

ess.

pB p

si (b

ar)

max5100(350)

min725(50)

VgmaxVgmin

800

700

600

500

400

300

200

100

0 0,2 0,4 0,6 0,8 1,0Vg min Vg

Vg max

Vg max

RA 92500/08.97

14

Variable Displacement Pump AA11VOBefore finalising your design, please request a certified drawing.

Dimensions in inches and millimeters ().

T Splined shaft SAE C, 11/4"pressure angle 30°, 14T-12/24 pitchflat root, side fittolerance class 5, ANSI B92.1a/1976

Constant pressure control DRVariation:Load sensing valve S

Unit Dimensions, Size 40Constant power control LRVariation:Pressure cut-off DLoad sensing valve S

Connections

A, B Service line ports SAE 3/4" 6000 psi(420 bar) high pressure series

S Suction port SAE 2" 3000 psi(210 bar) standard series

T1 Air bleed, reservoir 7/8"-14 UNF-2B; 0.55 (14) deep


M1 Gauge point positioning chamber 9/16"-18 UNF-2B; 0.51 (13) deep

M Gauge point for pressure port 9/16"-18 UNF-2B; 0.51 (13) deep

X Port for ∆p-control 9/16"-18 UNF-2B; 0.51 (13) deep

Y Pilot pressure port 9/16"-18 UNF-2B; 0.51 (13) deep

R Air bleed, Oil drain 7/8"-14 UNF-2B; 0.55 (14) deep

G Control pressure port 9/16"-18 UNF-2B; 0.51 (13) deepat design with stroke limiter (H.., U2), or HD, EP-control with fitting GE10 - PLM(in other cases port "G" is plugged)

P Parallel shaft, DIN 6885with key AS 10x8x56 (mm)

Shaft endsS Splined shaft SAE B-B, 1"

pressure angle 30°, 15T-16/32 pitchflat root, side fittolerance class 5, ANSI B92.1a/1976

LR

SDR/D

Detail W

3/8"-16 UNC-2B;0.59 (15) deep

counter-clockwise rotation

0.94(23,8)

clockwise rotation

1.69(42,9)

8.86(225)

X

AS

X

SB

Detail V

2.00

(50,

8)0.

75(1

9)

A

5.75

(146

)

6.85

(174

)

4.72 (120)

0.55(14)

Vg min

45°

T1

9.76 (248)7.20 (183)

M S G

4.84 (123)

0.59 (15)0.38 (9,7)

Vg max

T1 M G

1/2"-13 UNC-2B;0.79 (20) deep

2.05(52)

7.20 (183)

T2X A

W

2.95

(75)

2.95

(75) 4.

33(1

10)

RM1

S

5.04

(12

8)4.

06 (

103)

Ø4.

00 (

Ø10

1,6)

(SA

E-B

)

V

3.06

(77,

8)

1.97

(50) 1.

54(3

9)

Note: Thread depth of the S and A/B port bolt holes does not conform to SAEstandards. Please note that shorter bolts and/or `high-collar´ lock washers maybe required.

1.81(46)

0.87(22)1.18(30) 1.50

(38)

ø1.

02(ø

20,8

)

ø3.

17 (

ø80

,5)

3/8"

-16U

NC

-2B

3.60 (66)

0.87(22)

M12

ø3.

17 (

ø80

,5)

1.26

061.

2599

2.28(58)

(ø32

k6)D

IA

2.20(56)

1.10(28)

1.57(40) 1.89

(48)

ø1.

02(ø

25,8

)

ø3.

17 (

ø80

,5)

7/16

"-14

UN

C-2

B

R0.06 (R1,6) R0.06 (R1,6)

15


RA 92500/08.97

Before finalising your design, please request a certified drawing.Dimensions in inches and millimeters ().

Unit Dimensions, Size 40Constant power control with hydraulic stroke limiter andpressure cut-off LRDH1/LRDH5 (function: V g max to Vg min )

Constant power control with hydraulic stroke limiter andpressure cut-off LRDH2/LRDH6 (function: V g min to Vg max)

Electrical control with proportional solenoid,pressure cut-off EP.D (in preparation)

Hydraulic control, pilot pressure related,Pressure cut-off HD1D, HD2D

DH1/5 LR

9.76 (248)

6.02

(15

3)

T1

R

S

G

MY G

M1

SMT1

AT2Y

DH2/6 LR

9.76 (248)

6.02

(15

3)

T1

R

S

G

MY G

M1

SMT1

AT2Y

0.73(18.5)

8.19 (208)

5.16

(13

1)

T1

R

S

G

MY G

M1

SMT1

AT2Y

0.89(22.5)

DHD1/2

RA 92500/08.97

16



Shaft endsS Splined shaft SAE C, 11/4"



T Splined shaft SAE 13/8"pressure angle 30°, 21T-16/32 pitchflat root, side fittolerance class 5, ANSI B92.1a/1976



Connections











LR

Detail W

3/8"-16 UNC-2B;0.79 (20) deep


0.94(23,8)

clockwise rotation

1.69(42,9)

X

AS

X

SB

2.00

(50,

8)0.

75(1

9)

A

Vg min

T19.53 (242)

10.30 (261,5)

M S G

7.80 (198)5.35 (136)

0.50 (12,7)

Vg max

T1

M G

1/2"-13 UNC-2B;0.79 (20) deep

2.58(65,5)

7.80 (198)

T2X A

W

3.23

(82)

3.23

(82)

4.41

(112

)

R M1

S

5.35

(13

6)4.

37 (

111)

Ø5.

00 (

Ø12

7)

(SA

E-C

)

3.06

(77,

8)

1.97

(50)

1.81

(46)

0.75(19)

SDR/D

M1 M17.13 (181)

8.39 (213)

0.69

(17,

5)


2.20(56)

1.10(28)1.57(40) 1.89

(48)

ø1.

02(ø

25,8

)

ø3.

58 (

ø91

)

7/16

"-14

UN

C-2

B

3.60 (66)

1.10(28)

M12

ø3.

58 (

ø91

)

1.37

871.

3780

2.28(58)

(ø35

k6)D

IA

2.20(56)

1.10(28)

1.57(40) 1.89

(48)

ø1.

19(ø

30,2

)

ø3.

58 (

ø91

)

7/16

"-14

UN

C-2

B

R0.06 (R1,6) R0.06 (R1,6)

17


RA 92500/08.97


Constant power control with hydraulic stroke limiter andpressure cut-off LRDH1/LRDH5 (function: V g max to V g min )


Electrical control with proportional solenoid,pressure cut-off EP.D

Hydraulic control, pilot pressure related,Pressure cut-off HD1D, HD2D

Unit Dimensions, Size 60

D

H1/5

10.08 (261,5)6.

34 (

161)

T1

R

S

G

MY G

M1

SM

AT2Y

LR

0.67(17)

DH2/6

10.08 (261,5)

6.34

(16

1)

T1

R

S

MY G

M1

AT2Y

LR

1.38(35)

GSM

D

8.72 (221,5)

5.47

(13

9)

T1

R

S

G

MY G

M1

SM

AT2Y

LR

1.54(39)

HD1/2

RA 92500/08.97

18



Shaft endsS Splined shaft SAE C, 11/4"






Connections

A, B Service line ports SAE 1" 6000 psi(420 bar) high pressure series

S Suction port SAE 2 1/2" 2500 psi(170 bar) standard series









LR

SDR/D

Detail W

7/16"-14 UNC-2B;0.87 (22) deep


1.09(27,8)

clockwise rotation

2.00(50,8)

10.24 (260)

X

AS

X

SB

2.25

(57,

2)0.

98(2

5)

A

Vg min

T1

10.85 (275,5)8.46 (215)

M S G

5.83 (148)0.50 (12,7)

Vg max

T1 M G

1/2"-13 UNC-2B;0.75 (19) deep

3.15(80)

8.46 (215)

T2X A

W

3.48

(88,

5)3.

48(8

8,5)

4.47

(11

3,5)

RM1

S

5.61

(14

2,5)

4.61

(11

7)

Ø6.

00 (

Ø15

2,4)

(SA

E-D

)

3.50

(88,

9)

2.48

(63) 1.

97(5

0)

0.75 (19)

ø0.8

3(ø

21)

M1 M16.36 (161,6)

7.87 (200)

6.36

(16

1,6)


2.20(56)

1.10(28)1.57(40) 1.89

(48)

ø1.

02(ø

25,8

)

ø3.

78 (

ø96

)

7/16

"-14

UN

C-2

B

3.62 (92)

1.42(36)

M16

ø3.

78 (

ø96

)

1.57

551.

5749

3.23(82)

(ø40

k6)D

IA

2.20(56)

1.10(28)

1.57(40) 1.89

(48)

ø1.

19(ø

30,2

)

ø3.

78 (

ø96

)

7/16

"-14

UN

C-2

B

R0.06 (R1,6) R0.06 (R1,6)

19


RA 92500/08.97


Constant power control with hydraulic stroke limiter andpressure cut-off LRDH1/LRDH5 (function: V g max to Vg min )

Constant power control with hydraulic stroke limiter andpressure cut-off LRDH2/LRDH6 (function: V g min to Vg max )


Hydraulic control, pilot pressure related,pressure cut-off HD1D, HD2D


DH1/5

10.85 (275,5)6.

59 (

167,

5)

T1

R

S

G

MY G

M1

SM

AT2Y

LR

1.22(31)

DH1/5

10.85 (275,5)

6.59

(16

7,5)

T1

R

S

G

MY G

M1

SM

LR

1.93(49)

AT2Y

DH1/5

9.27 (235,5)

5.73

(14

5,5)

T1

R

S

G

MY G

M1

SM

AT2Y

2.09(53)

RA 92500/08.97

20




Shaft endsS Splined shaft SAE D, 13/4"




Connections

A, B Service line ports SAE 1" 6000 psi(420 bar) high pressure series










LR

SDR/D

Detail W

7/16"-14 UNC-2B;0.87 (22) deep


1.09(27,8)

clockwise rotation

2.44(61,9)

11.30 (287)

X

AS

X

SB2.

25(5

7,2)

0.98

(25)

A

Vg min

T1

11.50 (292)

9.21 (234)

M S G

6.10 (155)

0.50 (12,7)

Vg max

T1

M G

5/8"-11 UNC-2B;0.94 (24) deep

0.79(20)

9.21 (234)

T2X A

W

3.78

(96)

3.78

(96)

4.53

(115

)

RM1

S

4.92

(12

5)

Ø6.

00 (

Ø15

2,4)

(SA

E-D

)

1.97

(50)

2.95

(75)

4.19

(106

,4)

3.58 (91)

M1 M1

6.36

(16

1,6)

0.83

(21)

6.36 (161,6)

7.87 (200)

6.18

(15

7)


2.95(75)

1.42(36)2.17(55) 2.64

(67)

ø1.

42(ø

36)

ø3.

98 (

ø10

1)

5/8"

-11

UN

C-2

B

3.54 (90)

1.42(36)

M16

ø3.

98 (

ø10

1)

1.77

241.

7717

3.23(82)

(ø45

k6)D

IA

R0.10 (R2,5)

21


RA 92500/08.97


Constant power control with hydraulic stroke limiter andpressure cut-off LRDH1/LRDH5 (function: V g max to V g min )





DH1/5

11.50 (292)7.

09 (

180)

T1

R

S

G

MY G

M1

SM

AT2Y

LR

1.54(39)

DLR

11.50 (292)

7.09

(18

0)

T1

R

S

G

MY G

M1

SM

AT2Y

2.28(58)

H2/6

9.92 (252)

6.10

(15

5)

T1

R

S

G

MY G

M1

SM

AT2Y

2.42(61,5)

DHD1/2

RA 92500/08.97

22






Connections

A, B Service line ports (without charge pump)SAE 1" 6000 psi(420 bar) high pressure series

A, B Service line ports (with charge pump)SAE 1 1/4" 6000 psi(420 bar) high pressure series












X

8.03


LR

SDR/D

Detail W

7/16"-14 UNC-2B;0.87 (22) deep


1.09(27,8)

clockwise rotation

2.44(61,9)

12.20 (310)

X

AS SB2.

25(5

7,2)

0.98

(25)

A

Vg min

T112.32 (313)

10.04 (255)

M S G

6.85 (174)0.50 (12,7)

Vg max

T1

M G

5/8"-11 UNC-2B;0.94 (24) deep

4.41(112)

10.04 (255)

T2X A

W

4.09

(104

)4.

09(1

04)

4.65

(118

)

R M1

S

6.54

(16

6)5.

31 (

135)

Ø6.

00 (

Ø15

2,4)

(SA

E-D

)

4.19

(106

,4)

2.95

(75)

2.28

(58)

0.79(20)

M1M1

0.83

(21)

6.36

(16

1,6)

6.36 (161,6)

Design AA11VLO (with charge pump) see page 23

2.95(75)

1.42(36)2.17(55) 2.64

(67)

ø1.

42(ø

36)

ø4.

17 (

ø10

6)

5/8"

-11

UN

C-2

B

3.54 (90)

1.42(36)

M16

ø4.

17 (

ø10

6)

1.96

921.

9686

3.23(82)

(ø50

k6)D

IA

R0.10 (R2,5)

23


RA 92500/08.97





Design AA11VLO (with charge pump, clockwise rotation)connections see page 22


12.32 (313)7.

44 (

189)

T1

R

S

G

MY G

M1

SM

AT2Y

DH1/5 LR

2.36(60)

12.32 (313)

7.44

(18

9)

T1

R

S

G

MY G

M1

SM

AT2Y

DH2/6 LR

3.11(79)

10.75 (273)

6.46

(16

4)

T1

R

S

G

MY G

M1

SM

AT2Y

DHD1/2

3.25(82,5)

14.09 (358)

2.63

(66,

7)

T1

R

B

G

M G

M1

B M

ST2X

13.54 (344)

11.30 (287)

4.09

(10

4)4.

09 (

104)

4.65

(11

8)

T1

1.26

(32)

1.25(31,8)9.61 (244)

1/2"-13 UNC-2B;0.75 (19) deep

RA 92500/08.97

24


Unit Dimensions, Size 190, design with charge pumpConstant power control, with pressure cut-off and Load sensing valve, LRDSConstant pressure control with Load sensing valve, DRS

T Splined shaft SAE F, 2"pressure angle 30°, 15T-8/16 pitchflat root, side fittolerance class 5, ANSI B92.1a/1976

Connections


S Suction port SAE 31/2" 500 psi(35 bar) standard series

T1 Air bleed, reservoir 15/16"-12 UNF-2B; 0.79 (20) deepT2 Air bleed, reservoir 15/16"-12 UNF-2B; 0.79 (20) deepM1 Gauge point positioning chamber 9/16"-18 UNF-2B; 0.51 (13) deepM Gauge point for pressure port 9/16"-18 UNF-2B; 0.51 (13) deep



R Air bleed, Oil drain 15/16"-12 UNF-2B; 0.79 (20) deepG Control pressure port 9/16"-18 UNF-2B; 0.51 (13) deep

at design with stroke limiter (H.., U2), or HD, EP-control with fitting GE10 - PLM(in other cases port "G" is plugged)

Shaft ends

S Splined shaft SAE D, 13/4"pressure angle 30°, 13T-8/16 pitchflat root, side fittolerance class 5, ANSI B92.1a/1976



SDR/DLR

Detail W

5/8"-11 UNC-2B;0.94 (24) deep2.75

(69,9)

clockwise rotation

1.44 (36,5)

15.01 (381,3)

X

G

R

X

SB

4.57

(116

) (S

)4.

57(1

16)

S

Vg min

T1

15.56 (395,3)

7.49 (190,3)

M S G

Vg max

T1 M G

5/8"-11 UNC-2B;0.94 (24) deep

12.57 (319,3) (S)

T2 X S (suction port)

W

R M1

B

7.01

(17

8)6.

50 (

165) Ø

6.50

(Ø

165,

1)

(SA

E-E

)

3.13

(79,

4)

1.50

(38)

2.60

(66)

3.54

(90)

4.75

(120

,7)

M0.63 (15,9)

10.73 (272,5)

8.84 (224,5)

10.33 (262,5)

8.84

(22

4,5)


2.95(75)

1.42(36)2.17(55) 2.64

(67)

ø1.

42(ø

36)

ø4.

96 (

ø12

6)

5/8"

-11

UN

C-2

B

4.45(113)

1.65(42)

M20

ø4.

96 (

ø12

6)

2.16

652.

1658

4.13(105)

(ø55

m6)D

IA

3.46(88)

1.42(36)

2.60(66) 3.15

(80)

ø1.

67(ø

42,3

)

ø4.

96 (

ø12

6)

5/8"

-11

UN

C-2

B

R0.10 (R2,5) R0.16 (R4)

25


RA 92500/08.97


Design AA11VO 190 (without charge pump, clockwiserotation), electrical control EP, connections see page 24

Constant power control with hydraulic stroke limiter andpressure cut-off LRDH1/LRDH5 (function: V g max to Vg min )(without charge pump)




H1/5

14.92 (379)

8.96

(22

7,5)

T1

R

B

G

MY

G

M1

BMT1

ST2Y

DLR

11.07 (281,3)

T1

R

G

M G

M1

BMT1

ST2

11.07 (281,3)

B

13.42 (340,8)13.65 (346,8)

RA 92500/08.97

26



Unit Dimensions, Size 260Electrical control EP, design without charge pump





Connections

A, B Service line ports SAE 1 1/2" 6000 psi(420 bar) high pressure series

S Suction port (without charge pump) SAE 3 1/2" 500 psi(35 bar) standard series

S Suction port (with charge pump) SAE 4" 500 psi(35 bar) standard series

T1 Air bleed, reservoir 15/16"-12 UNF-2B; 0.79 (20) deepT2 Air bleed, reservoir 15/16"-12 UNF-2B; 0.79 (20) deepM1 Gauge point positioning chamber 9/16"-18 UNF-2B; 0.51 (13) deepM Gauge point for pressure port 9/16"-18 UNF-2B; 0.51 (13) deepX Port for ∆p-control 9/16"-18 UNF-2B; 0.51 (13) deepY Pilot pressure port 9/16"-18 UNF-2B; 0.51 (13) deepR Air bleed, Oil drain 15/16"-12 UNF-2B; 0.79 (20) deepG Control pressure port 9/16"-18 UNF-2B; 0.51 (13) deep

at design with stroke limiter (H.., U2), or HD, EP-control with fitting GE10 - PLM(in other cases port "G" is plugged)


EP

Detail W5/8"-11 UNC-2B;0.94 (24) deep

2.75(69,9)

clockwise rotation

14.65 (372)

G

R M

SB

5.12

(13

0)

5.22

(13

2,5)

S

Vg min

T1

8.43 (214)

12.09 (307)

M B G

0.63 (15,9) 1.44 (36,5)

Vg max

T1 M G

5/8"-11 UNC-2B;0.83 (21) deep

12.09 (307)

T2

X

S

W

R M

B

7.46

(189

,5)

6.85

(17

4) Ø6.

50 (

Ø16

5,1)

(SA

E-E

)

3.13

(79,

4)

1.50

(38)

2.83

(72)

5.12

(13

0)

4.75

(120

,7)

3.54

(90)

8.84

(22

4,5)

8.84 (224,5)

10.33 (262,5)

2.95(75)

1.42(36)2.17(55) 2.64

(67)

ø1.

42(ø

36)

ø5.

12 (

ø13

0)

5/8"

-11

UN

C-2

B

4.45(113)

1.65(42)

M20

ø5.

12 (

ø13

0)

2.36

342.

3626

4.13(105)

(ø60

m6)D

IA

3.46(88)

1.65(42)

2.60(66) 3.15

(80)

ø1.

91(ø

48,6

)

ø5.

12 (

ø13

0)

3/4"

-10

UN

C-2

B

R0.10 (R2,5) R0.16 (R4)

27


RA 92500/08.97

Design AA11VLO 260 (with charge pump, clockwiserotation), electrical control EP, connections see page 26






13.62 (346)

5.13

(130

,2)

T1

R

SG

M

W

G

M

B

MT1

ST2

3.06(77,8)

B16.85 (428)

3.94

(100

)

0.63(15,9)

5/8"-11 UNC-B;0.83 (21) deep

11.97 (304)

16.30 (414)

Detail W

Drawing in preparation. Drawing in preparation.

Drawing in preparation.

RA 92500/08.97

28


Total length A1

*) design with charge pump (impeller)

Dimensions for Through Drives

Through drive: flange SAE A, hub SAE A (K01)

Total length A1

Through drive: flange SAE B, hub - SAE B (K02)- SAE B-B (K04)

Total length A1



hub SAE C SAE C-CK07 K24

size 60

75

95 12.52 (318)

130 12.99 (330)

130* 14.33 (364)

190

190* 15.75 (400)

260 15.41 (391,5)

260* 17.07 (433,5)

hub SAE AK01

size 40

60 10.12 (257)

75 10.83 (275)

95 12.05 (306)

130 13.35 (339)

130*

190

190* 15.51 (394)

260 15.16 (385)

260* 16.82 (427,3)

hub SAE B SAE B-BK02 K04

size 40

60 10.28 (261) 10.28 (261)

75 10.98 (279) 10.98 (279)

95 11.93 (303) 11.93 (303)

130 12.83 (326) 12.83 (326)

130*

190

190* 15.91 (404) 15.91 (404)

260 15.55 (395) 15.55 (395)

260* 17.22 (437,5) 17.22 (437,5)


3/8"-16 UNC; 0.59 (15) deep (sizes 60, 75)3/8"-16 UNC; 0.49 (12,5) deep (sizes 95-260)

5.12 (130) to mounting flange

4.19 (106,4) A1

Ø3.

25 (Ø

82,5

5)(S

AE

A)

splined hub SAE A N 5/8"-9T 16/32 DP

to mounting flange

1/2"-13 UNC; 0.63 (16) deep

5.75(146) A1

5.75 (146)

45°

splined hub SAE B N 7/8"-13T 16/32 DPsplined hub SAE B-B N 1"-15T 16/32 DP

Ø4.

00 (Ø

101,

6)(S

AE

B)

to mounting flange

splined hub SAE C-C N 11/2"-17T 12/24 DPsplined hub SAE C N 11/4"-14T 12/24 DP

7.13 (181)

Ø5.

00 (Ø

127)

(SA

E C

)

5/8"-11 UNC; 0.59 (15) deep (sizes 60-95)5/8"-11 UNC; 0.79 (20) deep (sizes 130-260)

8.39 (213) A1

Through drive: flange SAE C, hub - SAE C (K07)- SAE C-C (K24)

29


RA 92500/08.97

hub SAE C SAE DK86 K17

size 75 —

95 —

130 13.39 (340)

130*

190

190*

260

260*

Size 40 60 75 95 130 190 260a in 0.69 0.69 0.79 0.79 0.89 1.02 1.14

mm 17,5 17,5 20 20 22,5 26 29b in 1.18 1.18 1.38 1.38 1.57 1.81 1.97

mm 30 30 35 35 40 46 50c ín 1.67 1.67 1.97 1.97 2.26 2.60 2.80

mm 42,5 42,5 50 50 57,5 66 71max. perm. radial load at distance a Fq max lbf 809 1124 1416 1798 2473 3805 4945

N 3600 5000 6300 8000 11000 16925 22000b Fq max lbf 650 910 1113 1424 1932 2973 3779

N 2891 4046 4950 6334 8594 13225 16809c Fq max lbf 543 764 917 1178 1585 2439 3057

N 2416 3398 4077 5242 7051 10850 13600max. perm. axial load ± Fax max lbf 337 495 618 787 1079 1349 933

N 1500 2200 2750 3500 4800 6000 4150

Total length A1


Through drive: flange SAE D, hub - SAE C (K86)- SAE D (K17)

Total length A1


distance of Fq

(from shaft shoulder)

Input DrivePermissible axial and radial loading on drive shaft

Through drive: flange SAE E, hub - SAE D (K72)

hub SAE DK72

size 190

190*

260

260*


splined hub SAE C N 11/4"-14T 12/24 DPsplined hub SAE D N 13/4"-13T 8/16 DP3/4"-10 UNC; 1.10 (28) deep

Ø6.

00 (Ø

152,

4)(S

AE

D)

to mounting flange

6.36 (161,6)7.87 (200)

splined hub SAE D N 13/4"-13T 8/16 DP3/4"-10 UNC; 1.10 (28) deep

Ø6.

50 (Ø

165,

1)(S

AE

E)

8.84 (224,5)to mounting flange

A1

A1

RA 92500/08.97

30


Summary of the Assembly Possibilities for AA11VO

Through drive (AA11VO) A10VO assembly possibilities (2nd pump)hub flange AA11VO AA10V(S)O A10VG AA4VG others available for (see page 3):

K01 SAE A SAE A size 10,18 G2 AA11VO 40...260

K02 SAE B SAE B size 28 size 18 G3 AA11VO 40...260

K04 SAE B-B SAE B size 40 size 45 size 28, 45 size 28 AA11VO 40...260

K07 SAE C SAE C size 60 size 60, 71 size 40, 56, 71 AA11VO 60...260

K86 SAE C SAE D size 75 AA11VO 75...260

K24 SAE C-C SAE C size 100 AA11VO 95...260

K17 SAE D SAE D size 95, 130 size 140 size 90, 125 AA11VO 130...260

K72 SAE D SAE E size 190, 260 size 180 AA11VO 190...260

Combination Pumps

When ordering combination pumps the ordering codes have to be connected by a "+" sign:"ordering code 1st pump" +" ordering code 2nd pump"

Example: AA11VO130LRDS/10R-SD62K07 + AA11VO60LRDS/10R-SC62N00

31


RA 92500/08.97

Permissible Input and Through Drive Rotation TorquesSize 40 60 75 95

Corner torque at Vg max and ∆p = 5100 psi 1) Tmax lb-ft 173 239 304 385

= 350 bar 1) Nm 234 324 412 522Max. perm. input torque 2)

shaft end S TE perm. lb-ft 232 444 444 1210SAE (ANSI B92.1a-1976) Nm 314 (SAE B-B) 602 (SAE C) 602 (SAE C) 1640 (SAE D)

(W1"-15T 16/32DP) (W11/4"-14T 12/24DP) (W11/4"-14T 12/24DP) (W13/4"-13T 8/16DP)

shaft end T TE perm. lb-ft 444 715 715 –SAE (ANSI B92.1a-1976) Nm 602 (SAE C) 970 970 –

(W11/4"-14T 12/24DP) (W13/8"-21T 16/32DP) (W13/8"-21T 16/32DP)

shaft end P Tmax lb-ft 345 478 608 770(DIN 6885) Nm 468 648 824 1044

Max. perm. through drive torque 3) TD perm. lb-ft 232 384 487 651Nm 314 521 660 822

Code explanationsTD perm.

= max. permissible through drive torque lb-ft (Nm)TE perm.

= max. permissible input torque at the drive shaft lb-ft (Nm)

Vg1 • ∆p1 Vg1 • ∆p1T1 = take off torque at the 1st pump = lb-ft = Nm24 • π • ηmh 20 • π • ηmh

Vg2 • ∆p2 Vg2 • ∆p2T2 = take off torque at the 2nd pump = lb-ft = Nm24 • π • ηmh 20 • π • ηmh

Vg1 = pump displacement per rev. 1st pump in3 (cm3)Vg2 = pump displacement per rev. 2nd pump in3 (cm3)∆p1 = differential pressure 1st pump psi (bar)∆p2 = differential pressure 2nd pump psi (bar)ηmh = mechanical-hydraulic efficiency

Size 130 190 260

Corner torque at Vg max and ∆p = 5100 psi 1) Tmax lb-ft 533 791 1067

= 350 bar 1) Nm 723 1073 1447Max. perm. input torque 2)

shaft end S TE perm. lb-ft 1210 1210 1210SAE (ANSI B92.1a-1976) Nm 1640 (SAE D) 1640 (SAE D) 1640 (SAE D)

(W13/4"-13T 8/16DP) (W13/4"-13T 8/16DP) (W13/4"-13T 8/16DP)

shaft end T TE perm. lb-ft – 1969 3002SAE (ANSI B92.1a-1976) Nm – 2670 (SAE F) 4070

(W2"-15T 8/16DP) (W21/4"-17T 8/16DP)

shaft end P Tmax lb-ft 1068 1642 2056(DIN 6885) Nm 1448 2226 2787

Max. perm. through drive torque 3) TD perm. lb-ft 819 1298 1523Nm 1110 1760 2065

1) efficency not considered2) for drive shaft without radial load3) note max. perm. input torque for shaft end S!

Single pump

Combination pump

RA 92500/08.97

32


All rights reserved - Subject to revisionPrinted in U.S.A.

Mannesmann Rexroth Corporation Rexroth Hydraulics Div., Industrial, 2315 City Line Road, Bethlehem, PA 18017-2131 Tel. (610) 694-8300 Fax: (610) 694-8467Rexroth Hydraulics Div., Mobile, 1700 Old Mansfield Road, Wooster, OH 44691-0394 Tel. (330) 263-3400 Fax: (330) 263-3333

variable displacement pump aa11vo - airline hydraulics · 1 brueninghaus hydromatik nominal...

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