Fuel injection system for two-cycle engine

Details Fuel injection system for two-cycle engine Fuel injection system for two-cycle engine

1994-12-22

1996-09-10

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123 73C, 123299, 123336, F02D 908, F02B 1700

Patent

active

055535798

ABSTRACT:
A two-cycle crankcase compression direct injected internal combustion engine having a combustion chamber formed by a recess in the cylinder head in which a gap of the spark plug extends. The direct fuel injector sprays into this recess and has a first nozzle port that is directed toward the spark plug gap and at least two other nozzle ports that are directed into the recess but above the head of the piston. This achieves good stratification. The timing of the injection is such at least under low load and low speed conditions that the fuel patch will reach the spark plug at about the time it fires. A staged automatically operated throttle valve system is provided for insuring excess air to aid in the stratification and permit lean burn running.

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