Intake manifold for internal combustion engine having...

Details Intake manifold for internal combustion engine having... Intake manifold for internal combustion engine having...

F - Mech Eng,Light,Heat,Weapons

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F02M 25/06 (2006.01) F02M 25/07 (2006.01) F02F 7/00 (2006.01)

Patent

CA 1249191

INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINE HAVING EXHAUST GAS RECIRCULATION SYSTEM ABSTRACT OF THE DISCLOSURE An intake manifold (2) for an internal combustion engine equipped with an exhaust gas recirculation (EGR) system for recirculating a part of the exhaust gas to the intake system, having a V-shaped rib (13) formed on the inner surface thereof with the vertex (13a) directed upstream with respect to the flow of the intake air. The V-shaped rib is positioned upstream of the EGR gas outlet (10) of the EGR system so that oil contained in blow-by gas supplied by a positive crankcase ventilation (PCV) system or charged-air supplied by a turbocharger into the intake manifold (2) does not flow into the EGR gas outlet (10), but flows away from the EGR gas out- let (10). Therefore, the deposition of sludge around the EGR gas outlet (10) is prevented and a sufficient EGR rate is secured.

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