Idle air flow shutoff valve

Details Idle air flow shutoff valve Idle air flow shutoff valve

1988-09-19

1989-10-17

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02D 4122, F02D 4116

Patent

active

048739553

ABSTRACT:
The present invention is an idle fluid flow shutoff assembly including a throttle body having a longitudinal axis with a throttle plate disposed transversely to the longitudinal axis. The throttle body includes a secondary passageway having an inlet and an outlet to allow fluid flow to bypass the throttle plate when in a closed position. A motor is secured to the throttle body and cooperates with the secondary passageway for allowing a predetermined amount of fluid flow through the outlet. A pressure-actuated valve is moveable in response to the absence and presence of a predetermined pressure level and cooperates with the secondary passageway for allowing a predetermined amount of fluid flow to the intake manifold when the amount of fluid flow past the motor is not within predetermined limits.

REFERENCES:
patent: 4356802 (1982-11-01), Kern et al.
patent: 4494517 (1985-01-01), Kratt et al.
patent: 4573441 (1986-03-01), Wietschorke et al.
patent: 4662333 (1987-05-01), Martel
patent: 4662334 (1987-05-01), Wietschorke et al.
patent: 4765299 (1988-08-01), Wataya et al.
patent: 4781161 (1988-11-01), Sausner et al.

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