Fuel injection pump for internal combustion engines
US4083346A · kind A · utility
16Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1976 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Jan 27, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0205
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve for an internal combustion engine includes a fuel storage compartment and a pressure chamber from which a reciprocating pump piston delivers fuel to the engine's fuel lines. The fuel conduit between the storage compartment and the pressure chamber can be closed off by an electromagnetic valve. To permit engine operation even when the electrical system is non-functional, the magnetic valve is of the normally open type, held open by a spring. In the energized state, the valve closes off the fuel conduit and its closure is aided by the fuel pressure gradient across the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.