Internal combustion engine having separated cylinder head...

Details Internal combustion engine having separated cylinder head... Internal combustion engine having separated cylinder head...

F - Mech Eng,Light,Heat,Weapons

01

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F01M 13/04 (2006.01) F01M 11/02 (2006.01) F01M 13/00 (2006.01) F02F 7/00 (2006.01) F02B 75/18 (2006.01)

Patent

CA 2254423

An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine's crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages.

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