Fuel pumping apparatus
US5878958A · kind A · utility
3Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel pumping apparatus is disclosed which comprises a pumping plunger reciprocable within a bore. A spill valve communicates with the bore. A pilot piston is exposed to the fuel pressure within the bore, the pilot piston being arranged to move under the action of the fuel pressure to supply a pilot quantity of fuel to an injector. The pilot piston is arranged so that, in one position, only part of an end face thereof is exposed to the fuel pressure within the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.