Crankcase having blow-by gas passage and oil drain passage

Details Crankcase having blow-by gas passage and oil drain passage Crankcase having blow-by gas passage and oil drain passage

2006-07-25

2006-07-25

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

Reexamination Certificate

active

07080637

ABSTRACT:
The crankcase of an internal combustion engine includes a blow-by gas passage that is formed inside the crankcase and discharges blow-by gas inside the crankcase to the top of the crankcase. An oil drain passage is also formed inside the crankcase such that it discharges oil collected from the top of the crankcase into the crankcase, whereas the blow-by gas passage and the oil drain passage are interconnected with each other inside the crankcase.

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patent: 6405721 (2002-06-01), Moren
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patent: 6854454 (2005-02-01), Obayashi et al.
patent: 11-200829 (1999-07-01), None

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