Exhaust gas recirculation control system

Details Exhaust gas recirculation control system Exhaust gas recirculation control system

F - Mech Eng,Light,Heat,Weapons

02

M

123/98.01

F02M 25/06 (2006.01) F02M 25/07 (2006.01)

Patent

CA 1083905

ABSTRACT OF THE DISCLOSURE A multiple spark plug ignition internal combustion engine is equipped with an EGR control system which consists of an EGR control valve disposed in an EGR passageway connecting an exhaust gas passageway and an intake passageway. The EGR control system is arranged to control EGR rate in accordance with venturi vacuum and in accordance with the exhaust gas pressure in the EGR passageway upstream of the EGR control valve. The EGR control system comprises a device for decreasing the EGR rate under a suburban area cruising condition of a motor vehicle on which the engine is mounted. -1-

290810

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