Cylinder fuel injection type two-cycle engine

Details Cylinder fuel injection type two-cycle engine Cylinder fuel injection type two-cycle engine

1993-03-29

1994-12-20

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123 73C, 123298, 123305, F02B 1700

Patent

active

053738209

ABSTRACT:
Embodiments of two-cycle crankcase compression direct injected internal combustion engines that permit good firing and effective stratification, particularly at low speed, low load conditions. The engine defines a combustion chamber having a recess with a projection extending into the center of the recess and against which fuel is injected by a fuel injector as the piston approaches top dead center at idle. The spark plug firing is initiated prior to completion of the fuel injection. A specific configuration and orientation for the fuel injector nozzle in relation to the projection size and cylinder bore size is established so as to insure that at least 50% of the fuel injected at low and idle speed conditions will impinge upon the projection.

REFERENCES:
patent: 4401071 (1983-08-01), Zurner et al.
patent: 4492193 (1985-01-01), Neitz
patent: 4770138 (1988-09-01), Onishi
patent: 4920937 (1990-05-01), Sasaki et al.

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