FIELD: mechanical engineering: diesel engines.
SUBSTANCE: invention relates to fuel equipment of diesel engines. Proposed pumping element of high-pressure fuel contains plunger, plunger barrel, delivery valve body with delivery valve and spring, and union. Pumping element contains additionally compensating hollow washer placed between delivery body and union. Fuel pressure is transmitted into inner toroidal space of compensating washer through hole in compensating hollow washer. This pressure causes deformation of end face surfaces of compensating hollow washer, thus increasing contact forces in end face seals.
EFFECT: improved reliability and increased service life of precision parts of diesel engine high-pressure fuel pump.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PUMP SECTION OF HIGH PRESSURE FUEL PUMP OF DIESEL ENGINE | 2009 |
|
RU2406869C1 |
| HIGH-PRESSURE FUEL PUMP | 2008 |
|
RU2369767C1 |
| ELECTRIC-CONTROLLED FUEL SECTION | 2022 |
|
RU2811238C1 |
| HIGH-PRESSURE FUEL PUMP | 0 |
|
SU1174584A1 |
| AUTOMOBILE DIESEL ENGINE HIGH-PRESSURE FUEL-INJECTION PUMP | 2002 |
|
RU2230213C2 |
| DEVICE FOR DIAGNOSING CONDITION OF PRECISION PAIRS OF FUEL-INJECTION PUMP AND NOZZLES OF DIESEL ENGINE | 2005 |
|
RU2303159C1 |
| HIGH-PRESSURE FUEL PUMP (HPFP) SECTION | 2008 |
|
RU2369768C1 |
| HIGH PRESSURE FUEL PUMP | 2010 |
|
RU2537994C2 |
| FUEL SUPPLY SYSTEM FOR DIESEL ENGINE | 0 |
|
SU1758271A1 |
| PLUNGER PUMP | 2010 |
|
RU2514558C1 |
