Fuel injection device for diesel engine

Details Fuel injection device for diesel engine Fuel injection device for diesel engine

1998-09-08

2000-03-07

Wolfe, Willis R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123500, F02M 4500

Patent

active

060326417

ABSTRACT:
A fuel injection device for a diesel engine adapted to perform a preliminary injection (1) and a main injection (2) to a combustion chamber (3), wherein the preliminary injection (1) is adjusted to begin within a valve overlap term (40).
Within the valve overlap term (40), no intake air is introduced into the combustion chamber (3) or a little if any and the combustion chamber (3) contains a gas of high temperature. If the preliminary injection (1) is conducted into this gas of high temperature within the combustion chamber (3), a preliminary injection fuel vaporizes soon to thereby shorten the ignition lag of a main injection fuel with the result of improving the combustion.

REFERENCES:
patent: 5103785 (1992-04-01), Henkel
patent: 5119780 (1992-06-01), Ariga
patent: 5165373 (1992-11-01), Cheng
patent: 5592915 (1997-01-01), Ishiwata et al.
patent: 5735248 (1998-04-01), Matsuura et al.
patent: 5911207 (1999-06-01), Ohishi et al.

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