Engine and engine power tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9010284
APP PUB NO 20130239914A1
SERIAL NO

13789551

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The cooling effect of an engine is improved. An engine, which rotationally drives a saw chain serving as a rotating tool, is provided with a crankcase, in which a crankshaft is rotatably built, and a cylinder, in which a piston coupled to the crankshaft via a connecting rod is reciprocatably built. Atop part of the cylinder is covered with a cylinder cover, and a cooling wind toward the cylinder is generated by a cooling fan attached to a projecting end of the crankshaft. The cooling wind is guided by heat-dissipating plates extending along the crankshaft. Exposing parts bulged to outside than a lateral side of the cylinder cover are provided to tips of the heat-dissipating plates.

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First Claim

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Patent Owner(s)

  • HITACHI KOKI CO., LTD.

International Classification(s)

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Inventor(s)

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

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