Crankcase blowby disposal system

Details Crankcase blowby disposal system Crankcase blowby disposal system

1997-12-09

1999-08-17

McMahon, Marguerite

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F02B 2506

Patent

active

059378379

ABSTRACT:
A crankcase blowby disposal system for a reciprocating engine comprising a heat exchanger in fluid communication with an oil filter and the crankcase in which blowby comprising oil droplets, oil mist, oil vapor, water vapor and other gases, the blowby is vented from the crankcase, passes through the heat exchanger which cools the blowby to a temperature below the dew point of the oil vapor and above the dew point of the water vapor, whereby the oil vapor condenses and the water vapor does not condense, then the cooled blowby passes through an oil filter which removes essentially all the oil from the blowby, the oil free blowby is then returned to the engine intake or exhaust or vented to the atmosphere, the oil collected in the oil filter may be returned to the crankcase.

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