Internal combustion engine

Details Internal combustion engine Internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

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123/98.02

F02M 25/06 (2006.01) F01N 3/22 (2006.01) F02M 25/07 (2006.01)

Patent

CA 1114255

ABSTRACT OF THE DISCLOSURE Apparatus for controlling introduction of gas into a passage of an internal combustion engine employs a first control valve in a gas intro- duction passageway, a second control valve in an air conduit connecting the intake passage to atmosphere, and a regulating valve responsive to vacuum intensity in the intake passage. The regulating valve actuates vacuum responsive actuators for the control valves. This system is used for recir- culating exhaust gases into the intake passage, for introducing supplementary atmospheric air into the intake passage to modify the air-fuel ratio in accordance with atmospheric pressure reduction at high altitudes, and for controlling the introduction of atmospheric air into the exhaust passage upstream from a catalytic converter or reactor.

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