Breather system for a balancer gear chamber of a two-cycle engin

Details Breather system for a balancer gear chamber of a two-cycle engin Breather system for a balancer gear chamber of a two-cycle engin

1989-09-22

1990-11-13

Okonsky, David A.

Internal-combustion engines

Crankcase ventilation

123196R, F01M 1300

Patent

active

049694227

ABSTRACT:
A two-cycle engine has a balancer shaft driven by a crankshaft of the engine through gears, and a gear cover forming a balancer gear chamber for the gears. The balancer gear chamber is communicated with the atmosphere through a breather passage formed in an upper portion thereof. A labyrinth passage is formed in the balancer gear chamber for breathing air, so as to separate oil from discharging air.

REFERENCES:
patent: 2902012 (1959-09-01), Malcolm
patent: 4103650 (1978-08-01), Nishida et al.
patent: 4465029 (1984-08-01), Matsumoto
patent: 4825818 (1989-05-01), Hamamura et al.
patent: 4836156 (1989-06-01), Inagaki et al.
patent: 4846124 (1989-07-01), Suzuki et al.

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