Internal combustion engine with two intake valves

Details Internal combustion engine with two intake valves Internal combustion engine with two intake valves

1984-12-03

1985-10-22

Cross, E. Rollins

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123432, 123188M, 123445, F02B 2902, F02M 3510

Patent

active

045481750

ABSTRACT:
An internal combustion engine provided with a first port of a helical shape and second port of a straight shape opened to the combustion chamber. The first port provides a swirl motion in the cylinder, while the second port is opened to the combustion chamber at a position near the spark electrodes located at the upper portion of the combustion chamber in the center thereof. An intake control valve selectively opens or closes the second intake port in accordance with operating conditions of the engine. A main injector is arranged in the second port downstream of the intake control valve. The injector is so controlled that it opens substantially during the intake stroke when the intake control valve is closed. The injector is controlled to inject at the period substantially not located in the intake stroke.

REFERENCES:
patent: 4285310 (1981-08-01), Takizawa et al.

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