Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1987-12-18
1992-01-14
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123472, 123468, 123456, F02M 5502
Patent
active
050800701
ABSTRACT:
A hydraulic circuit for a fuel injection system having fuel injection valves, in which even under hot start conditions in an internal combustion engine, it is assured that the engine will start and continue to operate reliably. The hydraulic circuit is embodied such that the fuel pumped by a fuel feed pump into a fuel supply line reaches an annular fuel inflow chamber of a valve socket of a first fuel injection valve, and from there can flow through the fuel injection valve and emerges into an annular fuel return groove in the valve socket, from which it can flow via a connection to the annular fuel inflow chamber of the next fuel injection valve in succession. The fuel returns upwardly so that any air in the fuel will go upwardly with the fuel.
REFERENCES:
patent: 3924583 (1975-12-01), Jardin
patent: 4186708 (1980-02-01), Bowler
patent: 4334512 (1982-06-01), Biernath
patent: 4347823 (1982-09-01), Kessler
patent: 4436071 (1984-02-01), Hafner
patent: 4485790 (1984-12-01), Nishimura
patent: 4601275 (1986-07-01), Weinan
patent: 4831943 (1974-07-01), Unnalewski
Greigg Edwin E.
Greigg Ronald E.
Miller Carl Stuart
Roberts Bosch GmbH
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