Fuel injection system

Details Fuel injection system Fuel injection system

1980-05-05

1982-10-19

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123454, F02B 300

Patent

active

043544720

ABSTRACT:
A fuel injection system is proposed which can be triggered in such a manner that when control signals characterizing engine overrunning are present the fuel injection is interrupted. The fuel injection system includes metering valves, each of which is assigned one regulating valve, the movable valve element of which can be exposed on one side to the fuel pressure downstream of the pertinent metering valve and on the other side to the pressure in a control pressure line, which is limited on one side by a control throttle and on the other side by a control pressure valve. During engine overrunning, an electromagnetic valve which is disposed in a bypass that bypasses the control throttle or the control pressure valve or an electromagnetic valve in the control pressure line can be controlled in such a manner that the fuel pressure in the control pressure line increases and the regulating valves close, as a result of which the fuel injection is interrupted.

REFERENCES:
patent: 3999527 (1976-12-01), Wessel et al.
patent: 4018200 (1977-04-01), Stumpp et al.
patent: 4243002 (1981-01-01), Freyer et al.

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