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Table of Contents
- 1 HP3 System Lay-Out
- 2 Feed Pump HP3 (Trochoid Type)
- 3 Regulating Valve (HP3 Supply Pump)
- 4 Suction Control Valve (HP3 Supply Pump)
- 5 HP3 Pump Body Construction
- 6 Construction & Operation of Delivery Valve
- 7 Supply Pump Operation HP3
- 8 Pressure Discharge Valve Common Rail HP3
- 9 Denso Europe Technical Training
- 10 HP3 Supply Pump Inspection Procedure
- 11 Fuel Line Diagram HP3 on Test Bench
- 12 ECD Controller Set up HP3 on Test Bench
- 13 DST-1 Set up HP3
- 14 DST-1 Test Procedure Flow HP3
- 15 DST-1 Test Procedure HP3
- Download this manual
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Table of Contents
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Summary of Contents for Denso HP3
- Page 1 DENSO EUROPE TECHNICAL TRAINING HP3 Supply Pump © DENSO EUROPE B.V., 2003...
- Page 2 HP3 System Lay-out Supply pump Plungers Feed pump Delivery valve SCV (Suction Control Valve) Common rail Common rail pressure sensor Pressure discharge valve Pressure limiter Injector Engine ECU Various sensors Fuel filter Fuel tank Flow of injection fuel Flow of leak fuel ©...
- Page 3 Feed Pump HP3 (Trochoid type) Outer rotor Inner rotor Suction port Discharge port © DENSO EUROPE B.V., 2003...
- Page 4 Regulating Valve (HP3 Supply pump) Bushing Piston Spring Plug Feed pump Pump housing © DENSO EUROPE B.V., 2003...
- Page 5 Suction Control Valve (HP3 Supply pump) Feed pump Regulator valve When SCV opening is small When SCV opening is large © DENSO EUROPE B.V., 2003...
- Page 6 HP3 Pump body Construction Eccentric cam Ring cam Plunger Drive shaft © DENSO EUROPE B.V., 2003...
- Page 7 Construction & Operation of Delivery Valve Element Check ball Spring Holder Plunger © DENSO EUROPE B.V., 2003...
- Page 8 Supply pump Operation HP3 © DENSO EUROPE B.V., 2003...
- Page 9 Pressure Discharge Valve Common Rail HP3 : from Common rail : to Fuel tank Pressure discharge valve Common rail Operation when fuel pressure is higher than target injection pressure Operation when fuel pressure is identical to target injection pressure ©...
- Page 10 DENSO EUROPE TECHNICAL TRAINING HP3 Supply Pump Inspection Procedure © DENSO EUROPE B.V., 2003...
- Page 11 Fuel line diagram HP3 on Test bench © DENSO EUROPE B.V., 2003...
- Page 12 ECD Controller set up HP3 on Test bench (Only HP2) © DENSO EUROPE B.V., 2003...
- Page 13 DST-1 set up HP3 © DENSO EUROPE B.V., 2003...
- Page 14 DST-1 Test procedure flow HP3 © DENSO EUROPE B.V., 2003...
- Page 15 DST-1 Test procedure HP3 Always input off set data first( From ETSI Website!) Same as HP2. © DENSO EUROPE B.V., 2003...
- Page 16 DST-1 Test procedure HP3 Always reduce the fuel pressure before stopping the pump!! If not HP3 can be damaged. © DENSO EUROPE B.V., 2003...
- Page 17 DST-1 Test procedure flow HP3 • At this moment only repairable p/n 294000-001# ( Toyota Hiace/Hilux) • Always Check ETSI for latest version of Test specifications! • Always test with safety cover closed. © DENSO EUROPE B.V., 2003...
- Page 18 BEDANKT ENDE DOMO ARIGATO THANKS DANKE MOLTE GRAZIE EINDE © DENSO EUROPE B.V., 2003...