Variable-discharge high pressure pump
US5058553A · kind A · utility
49Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Nov 22, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable-discharge high pressure pump for pressure-feeding fuel to a common rail for use in a diesel engine. The pump has a plunger, a plunger chamber, a cam for reciprocatively moving the plunger; and opening-out type electromagnetic valve capable of opening and closing one end of the plunger chamber, a fuel reservoir, a check valve communicating with the plunger chamber, and an inlet pipe for supplying fuel to the fuel reservoir. Both the introduction of the fuel into the plunger chamber and the return of the fuel from the plunger chamber to the fuel reservoir are effected through the electromagnetic valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.