Method for preventing piston oil-up and engine employing the same
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United States of America Patent
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Jun 12, 2018
Issued Date -
Jun 15, 2017
app pub date -
Aug 24, 2016
filing date -
Dec 10, 2015
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Abstract
A method for preventing a piston oil-up, may include determining an oil-up condition formation to use a controller, wherein an oil-up oil generates since an engine oil moves upward above a piston, after an engine operation state is verified; determining a suction condition of the oil-up oil to use the controller based on any of a cylinder total control suction method, a cylinder explosion sequence suction method and a cylinder identical stroke sequence suction method when the oil-up condition has been formed; and operating an oil pump to use the controller, sucking the oil-up oil to use a suction force of the oil pump and discharging the sucked oil-up oil from a cylinder block.
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