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

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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!