denso hp2 pump repair
TRANSCRIPT
DENSO EUROPE B.V., 2003
DENSO EUROPE TECHNICAL TRAININGDENSO EUROPE TECHNICAL TRAINING
HP2 Supply PumpHP2 Supply Pump
DENSO EUROPE B.V., 2003
HP2 System Lay-outHP2 System Lay-out
Supply pump
Delivery valve
Regulating valve
Common rail pressure sensor
Flow of injection fuel Flow of leak fuel
Plunger Feed pump
SCVInner cam
Check valve
Common rail
Pressure limiter
Injector
TWV (Two-Way Valve) Engine ECU
EDU
Various sensors
Fuel filter
Fuel tank
DENSO EUROPE B.V., 2003
Feed Pump (HP2 Supply pump)Feed Pump (HP2 Supply pump)
Rotor
Eccentric ring
Spring
Vane
Front cover
Rear cover
DENSO EUROPE B.V., 2003
Regulating Valve (HP2 Supply pump)Regulating Valve (HP2 Supply pump)
Regulating valve
Feed pump (discharge side)
Suction inlet
Filter
Feed pump (suction side)
Regulating valve body
Spring
Piston
Bushing
DENSO EUROPE B.V., 2003
Suction Control Valve (HP2 Supply pump)Suction Control Valve (HP2 Supply pump)
Stopper
Coil
Needle valve
Spring
DENSO EUROPE B.V., 2003
Fuel Flow (HP2 Supply pump)Fuel Flow (HP2 Supply pump)
to Fuel tank
to Common rail
Feed pump Regulating valve
SCV 1
SCV 2 Check valve Plunger
Roller Inner cam Delivery valve
DENSO EUROPE B.V., 2003
DENSO EUROPE TECHNICAL TRAININGDENSO EUROPE TECHNICAL TRAINING
HP2 Supply PumpHP2 Supply PumpInspection ProcedureInspection Procedure
DENSO EUROPE B.V., 2003
Fuel line diagram HP2 on Test benchFuel line diagram HP2 on Test bench
DENSO EUROPE B.V., 2003
HP2 Supply pump Inspection Procedure FlowHP2 Supply pump Inspection Procedure Flow
DENSO EUROPE B.V., 2003
Off-set input Procedure in DST-1 Off-set input Procedure in DST-1
No off-set input
After input off-set data
Off set data are available on test specification sheet. (ETSI website)
Procedure is described in the adjustment manual
DENSO EUROPE B.V., 2003
Start up settings for ECD ControllerStart up settings for ECD Controller
Pump select switch set to “11”
DENSO EUROPE B.V., 2003
Usage of the Pressure Regulator ValvesUsage of the Pressure Regulator Valves
Valve 1 : 0 - 60 Mpa
Valve 2 : 60 – 120 Mpa
Valve 3 : 120 – 180 Mpa
Meaning pressure= 0 Mpa
DENSO EUROPE B.V., 2003
Adjustment manual for HP2 supply PumpAdjustment manual for HP2 supply Pump
• Manual is based on tests with Denso CPS21 test bench. (Operating differences can occur)
• Pictures of test steps are made without safety cover for better view.
• Actual tests should be done with use of Hartridge safety cover. (on AVM2PC)
• Be aware of the high temperatures of test oil during the tests that can cause injuries!
• Always Check ETSI for latest version of Test specifications!