Four-cycle engine for outboard motor

Details Four-cycle engine for outboard motor Four-cycle engine for outboard motor

1998-09-10

1999-12-21

Kamen, Noah P.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

440 88, B63H 2132, F02B 2500

Patent

active

060035013

ABSTRACT:
A four-cycle engine for an outboard motor includes an upwardly extending breather chamber which communicates with a projecting portion provided at a lower part of a crankcase and with an induction system via a PCV passage for returning a blow-by gas to intake manifolds. With this arrangement, it becomes possible to remove oil components from the blow-by gas within the PCV passage and hence to return the substantially oil-free blow-by gas to the intake manifolds.

REFERENCES:
patent: 5501202 (1996-03-01), Watanabe
patent: 5514015 (1996-05-01), Okazawa et al.
patent: 5794602 (1998-08-01), Kimura
patent: 5951344 (1999-09-01), Tsunoda et al.

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