Breathing system in combustion engine

Details Breathing system in combustion engine Breathing system in combustion engine

2007-05-22

2007-05-22

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Water and hydrocarbon

C123S572000

Reexamination Certificate

active

11178720

ABSTRACT:
A breathing system in a combustion engine includes an air cleaner (3) for purifying air to be supplied to the engine. The air cleaner (3) includes a cleaner casing (30) having a blow-by gas inlet port (33) and an intake air discharge port (34). The breathing system also includes a breather passage (8) having first and second breather passage portions. The first breather passage portion is fluidly connected with the inlet port (33) for communicating a crank chamber (1a) to a portion of an interior of the air cleaner (3) downstream of the cleaner element (50). The second breather passage portion fluidly connects the blow-by gas inlet port (33) and the intake air discharge port (34) and has a drain hole (95) for draining into the cleaner casing (30) a water component, separated from a blow-by gas (G) flowing through the breather passage (8).

REFERENCES:
patent: 3738088 (1973-06-01), Colosimo
patent: 6805088 (2004-10-01), Tachibana et al.
patent: 2556039 (1997-08-01), None

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