Auxiliary air control valve for engines

Details Auxiliary air control valve for engines Auxiliary air control valve for engines

1990-12-14

1992-01-21

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Auxiliary air or oxygen added to combustible mixture

123585, 251121, F02D 900, F02D 4100

Patent

active

050819780

ABSTRACT:
An auxiliary air control valve for engines wherein the valve has an intermediate peripheral portion enlarged to present a small gap to the valve seat port, and the front side of the intermediate peripheral portion and the rear side thereof formed to have slant surfaces so as to be diametrically and gradually reduced so that when the cooling water is at a low temperature, the front slant surface is positioned at the valve seat port, when the cooling water is at an intermediate temperature, the intermediate peripheral portion is positioned at the valve seat port, and when the cooling water is at a high temperature, the rear slant surface is positioned at the valve seat port, thereby being capable of controlling the quantity of intake air through the bypass passage.

REFERENCES:
patent: 4480614 (1984-11-01), Kobashi et al.
patent: 4549512 (1985-10-01), Takao et al.
patent: 4870944 (1989-10-01), Matsumoto et al.
patent: 4879982 (1989-11-01), Itakura et al.

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