Egr control system

Details Egr control system Egr control system

F - Mech Eng,Light,Heat,Weapons

02

M

123/98.05

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

Patent

CA 1080064

ABSTRACT OF THE DISCLOSURE An EGR control system consists of a pressure regu- lating valve assembly which functions to prepare a control vacuum for an EGR control valve in accordance with the relationship between venturi vacuum and the pressure in a particular part of an EGR passageway connecting an exhaust gas passageway to an intake pas- sageway. A connecting passage connecting the particular part of the EGR passageway to the pressure regulating valve assembly is provided with a flow restricting orifice therein. The connecting passage is further provided with a check valve to induct atmospheric air into the connecting passage to clean up the flow restricting orifice.

306213

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