Engine with an automatic choke and method of operating an automatic choke for an engine
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United States of America Patent
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May 7, 2013
Grant Date -
Dec 3, 2009
app pub date -
May 15, 2009
filing date -
May 27, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method of controlling a choke valve of an engine with a controller is disclosed. Also disclosed is an automatic choke performing the method, an engine having the automatic choke, and an apparatus having the engine. The controller includes an electronic circuit, such as a programmable device, and is coupled to a temperature sensor and a motor. The method includes determining a temperature value using the temperature sensor, determining a time period to hold the choke valve in a first position, keeping the choke valve at the first position for the time period, moving the choke valve from the first position toward a second position using the motor, determining a count to hold the choke valve, keeping the choke valve at the second position for the count, and moving the choke valve from the second position toward a fully open position.
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