Fuel injection apparatus for internal combustion engines
US4957084A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection apparatus for an internal combustion engine and comprising a fuel injection pump, a fuel delivery pump for communicating fuel from a fuel tank to the suction chamber of the fuel injection pump, and cut-off device for cutting off the fuel flow to the injection nozzles of the internal combustion engine in case of a disturbance, said cut-off device comprising a spring-loaded accumulator connected with the suction chamber of the fuel injection pump and an electromagnetically actuated control valve for effecting a rapid cut-off, said control valve communicating the outlet of the delivery pump with the fuel tank in case of a disturbance, whereby the accumulator provides for reduction of pressure in the suction chamber of the fuel injection pump so that fuel does not flow to the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.