Blowby gas circulation system and the method of circulation

Details Blowby gas circulation system and the method of circulation Blowby gas circulation system and the method of circulation

2006-05-30

2006-05-30

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

Reexamination Certificate

active

07051721

ABSTRACT:
A blowby gas circulation system for an engine having a crankcase and an intake system includes an oil tank which is independent of the crankcase, a first breather chamber and second breather chamber which are integrally provided with the crankcase. The oil tank supplies engine oil reserved therein to the crankcase and introduces a first gas-liquid mixture generated in the crankcase. The first gas-liquid mixture is separated into a second gas-liquid mixture and engine oil in the oil tank. Then, the second gas-liquid mixture is sent to a first breather chamber, being separated into a third gas-liquid mixture and engine oil. The third gas-liquid mixture is sent to a second breather chamber in which the third gas-liquid mixture is separated into blowby gas and engine oil. The blowby gas is sucked into the intake system and the engine oil is returned to the crankcase.

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