High pressure fuel supply pump for internal combustion engine
US7540274B2 · kind B2 · utility
21Cited by
15References
23Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 20, 2003 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Aug 20, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/166
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake valve automatically opened and closed by pressure of a pressuring chamber is provided in a fuel intake passage, the intake valve is pushed to open by a plunger of an electromagnetic plunger mechanism, pulling-in operating timing of the plunger is controlled according to the operating condition of an internal combustion engine, and opening time of the intake valve during compression stroke of a pump is controlled to make discharge flow-rate of high pressure fuel variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.