General purpose engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 19, 2021
Grant Date -
Sep 26, 2019
app pub date -
Feb 20, 2019
filing date -
Mar 23, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A general purpose engine includes: a cooling fan fixed to an engine rotary shaft; a muffler to silence exhaust gases; a muffler covering to cover the muffler; and an auto choke device to control an opening of a choke valve in an air intake passage by the utilization of heat evolved from the muffler. The auto choke device includes: a drive source, which is fitted to the muffler covering in a non-contact fashion to the muffler and exposed to an outer surface of the muffler covering; and a link member to connect between the drive source and the choke valve. The drive source includes a bracket, which is fitted to the muffler covering, and a bimetal fitted inside the bracket. The bracket includes a heat shield extending towards an inner side of the muffler covering, and the heat shield blocks out a cooling wind then flowing towards the bimetal.
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