Fuel pumping apparatus
US5575253A · kind A · utility
4Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Mar 28, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/502
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel pumping apparatus comprises a body defining a first bore within which a pumping plunger is reciprocable. The first bore communicates with a spill valve. A pilot piston is moveable within a pilot bore under the influence of the pressure within the first bore. A piston member is slidable within a blind drilling provided in the pilot piston such that upon movement of the pilot piston, fuel within the drilling is pressurised to a higher pressure than fuel within the first bore. Passage means connects the drilling with a fuel injection nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.