Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1983-06-01
1984-08-28
Feinberg, Craig R.
Internal-combustion engines
Charge forming device
Fuel injection system
123456, F02M 3900
Patent
active
044677669
ABSTRACT:
A fuel injection system is proposed which is triggerable in such a way that in the presence of control signals, in particular those characterizing engine overrunning, the fuel injection is interrupted. The fuel injection system includes metering valves to each of which one regulating valve is assigned, the valves each having a movable valve element which can be subjected on the one hand to the fuel pressure downstream of the respective metering valve and a spring and on the other hand to the pressure in a control pressure line. In the fuel supply line a pressure-reduction valve is provided upstream of the metering valve. During engine overrunning, the fuel pressure in the control pressure line is controllable by means of an electromagnetic valve in such a way 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: 3867917 (1975-02-01), Zeyns et al.
patent: 3946714 (1976-03-01), Eckert et al.
patent: 4018200 (1977-04-01), Stumpp et al.
patent: 4227502 (1980-10-01), Steinwart et al.
patent: 4383513 (1983-05-01), Gmelin et al.
Feinberg Craig R.
Greigg Edwin E.
Robert & Bosch GmbH
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