Engine and engine-operated working machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9140175
APP PUB NO 20140216370A1
SERIAL NO

14239499

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In an engine including a cooling fan provided at one end of a drive shaft to cool the engine, a muffler is attached such that a longitudinal direction thereof coincide with a direction of gravity, and a muffler accommodating chamber is formed by a muffler cover. A portion of cooling air generated by the cooling fan is introduced into the muffler accommodating chamber so as to cool the muffler. At the muffler accommodating chamber, a cooling air outlet is provided at an upper end of a cooling passage, such that the waste heat of the muffler is discharged from the cooling air outlet to the outside during the stop of the engine. A cooling air inlet is disposed below the cooling air outlet such that the cooling air flows from the lower side to the upper side of the muffler.

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Patent Owner(s)

  • HITACHI KOKI CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichihashi, Naoto Ibaraki, JP 24 71

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