Air induction control device for internal combustion engine

Details Air induction control device for internal combustion engine Air induction control device for internal combustion engine

1983-01-13

1984-03-06

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Auxiliary air or oxygen added to combustible mixture

123327, 123585, F02M 712

Patent

active

044347782

ABSTRACT:
An air induction control device for an internal combustion engine is composed of an air passage for communicating upstream and downstream sides of a throttle valve in an intake passageway when opened, a valve member movably disposed in the air passage to open the air passage in response to pressure differential between the upstream and downstream sides of the throttle valve in the intake passageway, and a diaphragm member mechanically connectable to the valve member so as to open the air passage in response to vacuum prevailing in the intake passageway downstream of the throttle valve, thereby effectively controlling air induction to the engine, even when the throttle valve is closed during normal engine deceleration and at sudden engine deceleration or during operation of engine accessories at idle throttle state.

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patent: 4310141 (1982-01-01), Tamura
patent: 4325349 (1982-04-01), Fehrenbach

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