Mechanically-enabled hydraulically-actuated electronically-controlled fuel injection system
US5931139A · kind A · utility
9Cited by
19References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M47/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system includes a fuel injector that defines an actuation fluid cavity, a fuel inlet and a nozzle outlet. A source of relatively high pressure actuation fluid is connected to the actuation fluid cavity via an actuation fluid supply passage. A fuel fluid supply passage extends between the fuel inlet and a source of relatively low pressure fuel fluid. A mechanically actuated valve is attached to the actuation fluid supply passage, and is moveable between an open position in which the actuation fluid supply passage is open and a closed position in which the actuation fluid supply passage is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.