FIELD: engines and pumps.
SUBSTANCE: proposed plunger pair comprises bush with two filling holes made tangentially to annular groove on plunger. Filling holes are arranged either under or above shut-off hole. Plunger is provided with control grooves to interact with shut-off hole. Said annular groove communicates via radial and axial holes with above-plunger chamber. Filling hole is made in the bush above under shut-off hole. End face metering edge is made on plunger lateral surface, below annular groove, to produce with annular groove a common chamber. Height of said edge makes 0.3…0.4 of total stroke of the plunger.
EFFECT: reduced fuel feed start angle in starting diesel, reduced diesel starting time.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PLUNGER PAIR | 2008 |
|
RU2390650C1 |
| PLUNGER PAIR | 2006 |
|
RU2312247C1 |
| PLUNGER PAIR | 2004 |
|
RU2258831C1 |
| PLUNGER PAIR | 2008 |
|
RU2406870C2 |
| HIGH-PRESSURE FUEL-INJECTION PUMP | 1994 |
|
RU2124139C1 |
| PLUNGER PAIR OF FUEL HIGH-PRESSURE PUMP (VERSIONS) | 2015 |
|
RU2630953C2 |
| DIESEL ENGINE FUEL FEED SYSTEM | 2004 |
|
RU2260146C1 |
| DIESEL ENGINE FUEL SUPPLY CONTROL DEVICE | 1999 |
|
RU2156882C1 |
| METHOD FOR TESTING TECHNICAL CONDITION OF PLUNGER-PAIR OF PUMPING SECTION OF DISTRIBUTING FUEL METERING PUMP | 0 |
|
SU1717858A1 |
| DISTRIBUTING-TYPE FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINE | 0 |
|
SU1437532A1 |
