System and method for monitoring blow-by in a combustion engine
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United States of America Patent
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Sep 1, 2015
Grant Date -
Feb 27, 2014
app pub date -
Sep 8, 2011
filing date -
Sep 8, 2010
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Abstract
A combustion engine comprises a suction valve system for discharging blow-by gas from the crankcase into an air inlet channel for the cylinders. The suction valve system is driven by an electromotor which is connected to a power source. The system comprises a rev counter which measures the rpm of the suction valve system, as well as a control unit which is connected to the power source, the rev counter and the engine management system. The control unit can set predefined engine conditions as well as the power flowing to the suction valve system to have this system rotate at a predefined speed. The value of the set power is a measurement for the blow-by.
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