| 摘要 |
PROBLEM TO BE SOLVED: To provide an engine capable of making air/fuel ratios of mixed air distributed to respective cylinders uniform. SOLUTION: In the engine, an upstream side breather outlet is opened in an upstream of a throttle valve and is communicate with a breather chamber 56 through an upstream side breather passage 52a, and a downstream side breather outlet is opened in a downstream of the throttle valve and communicates with the breather chamber 56 through a downstream side breather passage 53a. A commonly used breather passage 54 is led out of the breather chamber 56, and the upstream side breather passage 52a and the downstream side breather passage 53a are branched from the commonly-used breather passage 54. The starting end 52b of the upstream side breather passage 52a may be upwardly inclined from the commonly-used breather passage 54. COPYRIGHT: (C)2008,JPO&INPIT
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