AIR-COOLED ENGINE AND ENGINE WORKING MACHINE
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Dec 4, 2014
filing date -
Dec 4, 2013
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Abstract
An air-cooled engine includes a muffler that is attached to an exhaust port of a cylinder and a fan case that houses a cooling fan, and a cylinder cooling room is formed by a cylinder cover that houses the cylinder. A muffler cooling room is formed by a first muffler cover that covers at least some of the muffler through a clearance and a second muffler cover that covers at least some of the first muffler cover through a clearance. Some of cooling air generated by the cooling fan is supplied to the muffler cooling room. The cooling air is supplied to at least one of a first space between the muffler and the first muffler cover and a second space between the first muffler cover and the second muffler cover.
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