Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent
1998-08-26
1999-05-04
McMahon, Marguerite
Internal-combustion engines
Charge forming device
Crankcase vapor used with combustible mixture
12318442, F01M 1304
Patent
active
058991972
ABSTRACT:
An outboard motor having a multi-cylinder four-cycle, internal combustion engine as a power plant. An improved crankcase ventilating system is provided wherein the crankcase ventilating gases follow a circuitous path through the crankcase chamber, camshaft chambers and then to the intake system through an extended conduit passing over the exhaust manifold so as to reduce the emissions of hydrocarbons. The intake system is designed to preclude uneven distribution of the ventilating gasses.
REFERENCES:
patent: 5123385 (1992-06-01), Sado et al.
patent: 5513606 (1996-05-01), Shibata
patent: 5664549 (1997-09-01), Hutchins
Hirakoa Noriyoshi
Takahashi Masanori
Watanabe Hitoshi
McMahon Marguerite
Sanshin Kogyo Kabushiki Kaisha
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