Air-cooled engine unit

作者: Makoto Wakimura , 誠 脇村

DOI:

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摘要: Provided is an air-cooled engine unit capable of suppressing the degradation a catalyst, even when catalyst arranged near body. This (11) has compression ratio 10 or higher, and comprises (53) that in exhaust gas passage section (51) combustion chamber. The path length from port to shorter than atmospheric release opening (64a).

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