Fuel injection system for an internal combustion engine

Details Fuel injection system for an internal combustion engine Fuel injection system for an internal combustion engine

1999-01-14

2000-05-16

Yuen, Henry C.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123300, 123501, 123506, F02M 3900

Patent

active

06062194&

ABSTRACT:
In a fuel injection system for an internal combustion engine with a fuel injection pump providing for an initial fuel injection and a main fuel injection wherein the fuel injection pump includes a main fuel supply passage section and a side passage and a main fuel control valve disposed in the main fuel supply passage section and an additional control valve arranged in the side passage, at low engine speeds, the main fuel control valve is closed during the initial and main fuel injection periods for generating a pressure sufficient to open a fuel injector nozzle and the additional fuel control valve is opened for reducing the fuel pressure and terminating initial fuel injection and, at high engine speeds, the main fuel control valve is closed during initial fuel injection and again for the main fuel injection.

REFERENCES:
patent: 3456629 (1969-07-01), Dangauthier
patent: 4579096 (1986-04-01), Kobayashi et al.
patent: 4681080 (1987-07-01), Schukoff
patent: 4730585 (1988-03-01), Abe et al.
patent: 4782803 (1988-11-01), Kikuchi
patent: 4975029 (1990-12-01), Hatz
patent: 4976236 (1990-12-01), Brunel
patent: 5168847 (1992-12-01), Grieshaber et al.

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