Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1981-02-20
1983-05-03
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
F02M 3900
Patent
active
043817513
ABSTRACT:
A fuel injection system is proposed which serves to provide the most precise possible adaptation of the fuel-air mixture to operating conditions of the internal combustion engine. The fuel injection system includes metering valves, each of which is assigned one regulating valve, whose movable valve element can be exposed on the one hand to the fuel pressure downstream of the respective metering valve and on the other hand to the pressure in a control pressure line, which is limited on the one hand by an electro-fluid converter of the nozzle/bounce plate type and on the other hand by a control throttle. The electro-fluid converter is triggerable in accordance with operating characteristics of the engine. A pressure limitation valve is embodied as a diaphragm valve and serves to regulate the most precise possible system pressure in the engine and, when the engine is shut off, it serves to reduce the fuel pressure in the fuel injection system below the fuel pressure required for opening the injection valves and to block the return flow lines.
REFERENCES:
patent: 3809036 (1974-05-01), Knapp et al.
patent: 3981288 (1976-09-01), Wessel
patent: 3994273 (1976-11-01), Stumpp
patent: 4075995 (1978-02-01), Kramer
patent: 4220129 (1980-09-01), Steinwart et al.
Gmelin Karl
Maisch Wolfgang
Peters Jurgen
Stiefel Peter
Wissmann Michael
Argenbright Tony M.
Greigg Edwin E.
Robert & Bosch GmbH
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