Internal combustion engine of a lean air-fuel mixture combustion

Details Internal combustion engine of a lean air-fuel mixture combustion Internal combustion engine of a lean air-fuel mixture combustion

1976-06-03

1977-11-15

Cox, Ronald B.

Internal-combustion engines

Noncompression

123188VA, 123 32ST, 123139R, F02B 1910, F02M 3900

Patent

active

040580911

ABSTRACT:
An internal combustion engine of a lean air-fuel mixture combustion type comprising a valve guide and an intake valve supported by the valve guide. A pumping chamber is formed between the inner wall of the valve guide and the outer wall of the valve stem of the intake valve. The valve head has on its outer wall an injection nozzle connected to the pumping chamber. When the intake valve returns to its closing position at the time of the intake stroke, a fuel is injected from the injection nozzle into the combustion chamber filled with a lean air-fuel mixture whereby, a rich air-fuel mixture layer is formed in an ignition area around the spark gap of the spark plug.

REFERENCES:
patent: 2072437 (1937-03-01), Wurtele
patent: 3987769 (1976-10-01), Yew

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