yanmar mechnical pump
Post on 06-Apr-2018
283 views
TRANSCRIPT
-
8/3/2019 Yanmar Mechnical Pump
1/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
A- type Fuel Injection Pump
1. Valve holder
2. Delivery valve
3. Pump barrel
4. Pump plunger
5. Control rack
6. Control sleeve
7. Plunger return
8. Spring seat
9. Roller tappet
10. Camshaft
-
8/3/2019 Yanmar Mechnical Pump
2/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
Plunger Operation
Zero Delivery Partial Delivery Maximum Delivery
1. Plunger Helix
2. Upper and LowerHelix
3. Starting Groove
4. Leakage return slot
-
8/3/2019 Yanmar Mechnical Pump
3/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
Plunger PhasesBDC Prestroke Retraction
LiftResidStrok
EffectiveStroke
Fuel Intake Delivery Fu
DischStart of DeliveryEnd of intake
End of Delivery
-
8/3/2019 Yanmar Mechnical Pump
4/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
Delivery Valve
1. Delivery valve holder
2. Delivery valve spring
3. Delivery valve
4. Valve seat
5. Valve holder
What is the purpose of the delivery valves ?
1. To interrupt the high pressure circuit between fuel injection lines and p
2. To relieve pressure lines and nozzle space which causes the nozzle to c
thus preventing undesirable fuel dribble.
What is the purpose of the retraction piston ?
To separate the pipe line against element chamber,maintaining certain volume depending on the length of pipe.
-
8/3/2019 Yanmar Mechnical Pump
5/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
RDV Valve
What is the purpose of the RDV valve ?
1. Faster peak pressure and filling of high pressure pipe,opened through bore.
2. Maintains feed pressure of 3-3.5 bar in the element chamber andpipes when engine is not running.
-
8/3/2019 Yanmar Mechnical Pump
6/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
GDV Constant Pressure Valve
When are these constant pressure valves used ?
For high pressure fuel injPressures above 800 bar What are the advantages for this type of valves ?
It avoids cavitation in theImproves hydraulic stabil
-
8/3/2019 Yanmar Mechnical Pump
7/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
P Type PumpHow long is the plunger stroke ?
10 mm
How high is the peak injection
Pressure ? Delivery valve
Fuel gallery
Plunger barrel
Plunger return spring
Roller tappet
Camshaft
Cam lobe
Prestroke discs beneath the barrel and valve assembly
Approximately 800 bars
Control rodHow is the injection pump lubricated ?
Control sleeveFrom the engine lubrication system
How far does the control rod travel ?
Approximately 21 mm
Where are these pumps fitted ?
Commercial vehicles, stationary
engines
How is the prestroke adjusted ?
-
8/3/2019 Yanmar Mechnical Pump
8/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
MW Type Pump
Delivery valve holder
Filler piece
Delivery valve springPlunger flange assy
Delivery valve
Inlet bore
Plunger helix
Upper spring seat
Control sleeve
PlungerPlunger return spring
Lower spring seat
Roller tappet
-
8/3/2019 Yanmar Mechnical Pump
9/16
Strictly confidential | Department | 04/18/2005 | Filing note | Robert Bosch GmbH reserves all rights even in the event of industrial property
rights. We reserve all rights of disposal such as copying and passing on to third parties.
RBSI/ASA
EP-1 Diesel Fuel Injection Pump
A Type Pump
1. Delivery Valve
2. Pump barrel
3. Pump Plunger
4. Control rack
5. Control sleeve
6. Plunger returnspring
7. Adjusting screw
8. Roller tappet
9. Camshaft
10. Cam lobe
How lon
8 mm
How higpressureApproxi
How is the
From the
How far do
Approxim
Where are
Commerc
engines
How is th
At the tap
-
8/3/2019 Yanmar Mechnical Pump
10/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
11/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
12/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
13/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
14/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
15/16
SHIN DAE-A ENGINEERING
-
8/3/2019 Yanmar Mechnical Pump
16/16
SHIN DAE-A ENGINEERING
** .
YANMAR 6RAL, NIIGATA 6L16XC (Coupling)
.
- ENGINE 2CYCLE, 4CYCLE , 4CYCLE ENGINE INJECTION
PUMP .
.
( ) PUMP TEST . ,
.
( ! TEST .)
ENGINE , 6 , 8 ( PUMP )
1 - 5 - 3 - 6 - 2 - 4 1 - 4 - 2 - 6 - 3 - 5, 1 - 3 - 5 - 6 - 4 - 2,
1 - 2 - 7 - 3 - 4 - 5 - 6 - 8 1 - 8 - 4 - 3 - 6 - 5 - 7 - 2 ~ .
1 6, 8 (FLYWHEEL ) 1
1
1 , (4CYCLE
- 1 - 5 - 3 - 6 - 2 - 4 , 1, 5, 3 / 6, 2, 4 1 6
, 6 (CYLINDER) (ROCKER ARM)
)
INJECTION 1 .( .)
. (FUEL TIMING).
, (Main plate), , .
) YANMAR 6RAL -18 ~ 20, NIIGATA 6L16XC -19 ~ 21 .
FLYWHEEL , ( PLUNGER
.) .
,
.