Multi-intake valve engine

Details Multi-intake valve engine Multi-intake valve engine

1994-03-31

1996-01-02

Yuen, Henry C.

Internal-combustion engines

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

Having multiple oxidant inlet means

12318814, F02B 3100

Patent

active

054798892

ABSTRACT:
The engine has first and second intake ports for one cylinder (combustion chamber). The intake ports are formed in a cylinder head and extend substantially parallel to each other. Downstream ends of the first and second ports open to a combustion chamber defined in the cylinder upon a compression stroke. The first intake port is a helical port to generate and supply a first swirl into the combustion chamber. The second intake port has a recess in its wall near its downstream end to reverse the flow direction of the air in the second intake port so as to generate and supply a second swirl into the combustion chamber. The recess in the second intake port reverses the air flow direction before the intake air in the second intake port enters the combustion chamber, so that the second swirl flows in the same direction as the first swirl in the combustion chamber. Therefore, a single strong swirl is obtained in the combustion chamber.

REFERENCES:
Patent Abstracts of Japan; Appln No. 60-141293 published Jun. 1, 1987.
Patent Abstracts of Japan; Appln No. 54-110105 published Jul. 4, 1981.
Patent Abstracts of Japan; Appln No. 58-88222 published Mar. 12, 1984.

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