High pressure fuel injection system

Details High pressure fuel injection system High pressure fuel injection system

1976-12-16

1979-10-16

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139AK, 123139DP, 123 32JV, F02M 3902, F02B 1500

Patent

active

041709748

ABSTRACT:
A high pressure fuel injection system includes a pump-type fuel injection nozzle assembly provided with a sliding control valve which admits pressurized fuel or opens a return channel. A pressure chamber situated near the end of the needle valve of the nozzle remote from its seat is connected via a bypass channel with a region downstream of the sliding valve for the purpose of exerting a hydraulic closing force on the needle valve. The pressure in the bypass channel is controlled by the motions of the sliding valve. Alternatively, the additional hydraulic pressure may be exerted on the needle by an intermediate piston.

REFERENCES:
patent: 2313264 (1943-03-01), Reggio
patent: 2420550 (1947-05-01), Miller
patent: 2625436 (1953-01-01), Berlyn
patent: 2984230 (1961-05-01), Cummins
patent: 3796206 (1974-03-01), Links
patent: 3908621 (1975-09-01), Hussey
patent: 3943901 (1976-03-01), Takahashi et al.
patent: 3952711 (1976-04-01), Kimberley et al.
patent: 4036192 (1977-07-01), Nakayama

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