Fuel injection apparatus
US8342424B2 · kind B2 · utility
1Cited by
4References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jul 24, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/704
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A needle is received in a nozzle body and is adapted to reciprocate relative to an injection hole to open and close the injection hole. A pressure chamber receives the fuel and exerts a pressure against the needle in an opening direction away from the injection hole upon increasing of the pressure of the fuel in the pressure chamber. A damper arrangement is actuated upon increasing of the pressure in the pressure chamber to alleviate a change in the pressure in the pressure chamber. A pressurizing piston reciprocates to increase and decrease the pressure of the fuel in the pressure chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.