Fuel injection valve for internal combustion engines

Details Fuel injection valve for internal combustion engines Fuel injection valve for internal combustion engines

1997-05-09

2000-11-28

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123447, 123496, F02M 4100

Patent

active

061521116

ABSTRACT:
The invention proposes a fuel injection valve for internal combustion engines, having a valve member (11), which can be displaced axially outward in a bore (9) of a valve body (1) counter to the force of a closing spring (47) and which on its end toward the combustion chamber has a closing head (13), protruding from the bore (9) and forming a valve closing member, that on its side toward the valve body (1) has a valve sealing face (15) with which it cooperates with a valve seat face (17) disposed on the end of the valve body (1) toward the combustion chamber, and having at least one injection opening on the closing head (13) which originates at a pressure chamber (19) and whose outlet opening is covered by the valve body (1) in the closing position of the valve member (11) and is uncovered in the outward-oriented opening stroke. In the fuel injection valve a damping chamber (35) is provided, which damps the stroke motion of the valve member (11) in the opening direction and moreover enables shaping of the course of injection.

REFERENCES:
patent: 3753426 (1973-08-01), Lilley
patent: 4437443 (1984-03-01), Hofbauer
patent: 4662338 (1987-05-01), Itoh
patent: 4779596 (1988-10-01), Babitzka
patent: 5012786 (1991-05-01), Voss
patent: 5156132 (1992-10-01), Iwanaga
patent: 5241935 (1993-09-01), Beck
patent: 5682858 (1997-11-01), Chen

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