Secondary intake air supply system for internal combustion engin

Details Secondary intake air supply system for internal combustion engin Secondary intake air supply system for internal combustion engin

1984-07-27

1986-02-11

Cuchlinski, Jr., William A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123587, 123589, F02M 2304

Patent

active

045693188

ABSTRACT:
A secondary intake air supply system for internal combustion engines having two vacuum operated air control valves in parallel in a single secondary air supply line to the intake manifold. One of the air control valves is controlled by a vacuum control valve to open and close gradually to avoid abrupt changes in the air fuel mixture to the engine, upon changes in vehicle operation. Electromagnetic valves operated by a control circuit responsive to both an exhaust gas sensor and a throttle position also control the secondary air supplied through the two air control valves.

REFERENCES:
patent: 4083341 (1978-04-01), Brettschneider et al.
patent: 4091783 (1978-05-01), Laprade et al.
patent: 4355699 (1982-06-01), Totsune et al.

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