Engine injection control

Details Engine injection control Engine injection control

1996-05-30

1998-02-03

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123 73C, 123305, 123481, F02B 1700, F02B 2520

Patent

active

057133255

ABSTRACT:
A number of embodiments of engines having direct cylinder injection wherein the fuel injector is positioned so as to be shrouded by the piston during at least a portion of its stroke. This permits the use of less expensive and lower pressure fuel injection nozzles. The spray pattern of the injector is chosen so that some fuel is sprayed toward the spark plug to provide stratification, but the major portion is directed toward the head of the piston so to as insure a homogeneous mixture when operating at high speed, high load conditions. In order to improve scavenging under difficult running conditions injection may be skipped for one or more cycles to purge the cylinder of exhaust gasses before another injection occurs.

REFERENCES:
patent: 4768474 (1988-09-01), Fujimoto et al.
patent: 4790270 (1988-12-01), McKay et al.
patent: 4938213 (1990-07-01), Tanahashi et al.
patent: 4991558 (1991-02-01), Daly et al.
patent: 5097811 (1992-03-01), Baumuller

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