Engine driven welding machine
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United States of America Patent
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Mar 24, 2015
Grant Date -
Dec 18, 2008
app pub date -
Jun 4, 2008
filing date -
Jun 15, 2007
priority date (Note) -
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Abstract
An engine driven welding machine in which a welding generator is driven by an engine, and the engine performs an idle operation when a welding operation is stopped by including an engine stop signal forming circuit which forms a stop signal for stopping an operation of the engine when time of the idle operation exceeds a predetermined time, a direct-current power supply connected to an output terminal of the welding machine, voltage detecting means which detects a voltage change of the output terminal, a restart detecting circuit which forms a restart signal for restarting the engine when the detected voltage by the voltage detecting means shows a predetermined change mode for starting the welding operation, and an engine control circuit which stops the engine in response to the stop signal, and restarts the engine in response to the restart signal.
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