Internal combustion engine

Details Internal combustion engine Internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

F

123/44

F02F 1/42 (2006.01) F02D 17/02 (2006.01) F02D 21/08 (2006.01)

Patent

CA 1146032

ABSTRACT OF THE DISCLOSURE An internal combustion engine is disclosed which includes active cylinders being always active and inactive cylinders being inactive when the engine load is below a predetermined value. The engine has an intake passage divided into first and second branches connected to active and inactive cylinders, respec- tively. The second branch is provided near its inlet with a stop valve and is connected through an EGR passage to the engine exhaust passage. Means is provided to attenuate pressure waves resulting from exhaust pulsations and propagated through the EGR passage toward the second intake passage branch.

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