Secondary air system for internal combustion engine with deceler

Details Secondary air system for internal combustion engine with deceler Secondary air system for internal combustion engine with deceler

1984-11-30

1986-06-17

Cuchlinski, Jr., William A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123587, F02M 2308

Patent

active

045949778

ABSTRACT:
A secondary air intake system for adding air to the intake of an internal combustion engine includes an air control valve for changing the open area of a secondary air intake passage. The air control valve is opened and closed from a first and second pressure supply means. A first pressure supply means gradually supplies the first and second control pressure to operate the air control valve and open and close the secondary air intake passage in response to an air-fuel ratio signal. The first pressure supply means also supplies the second control pressure independent of the air-fuel ratio signal during a predetermined engine operating state. A second pressure supply means supplies the second control pressure separately of the first pressure supply means during a predetermined engine operating state.

REFERENCES:
patent: 4483308 (1984-11-01), Hasegawa
patent: 4495922 (1985-01-01), Fujimura et al.
patent: 4503834 (1985-03-01), Hasegawa

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