Device for preventing dilution of engine oil
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United States of America Patent
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Sep 8, 2020
Grant Date -
May 28, 2020
app pub date -
May 2, 2019
filing date -
Nov 23, 2018
priority date (Note) -
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Abstract
A device for preventing dilution of engine oil includes an oil pan in which oil for lubrication of the engine is recovered with fuel. An exhaust purifier is provided on a rear end of the engine and purifying exhaust gas. A gas passage can guide flow of exhaust gas passing through the exhaust purifier to the oil pan. A gas valve can control flow rate of the exhaust gas flowing in the gas passage. A controller controls an opening ratio of the gas valve depending on a temperature of oil inside the oil pan to maintain the temperature of the oil equal to or higher than a temperature at which the fuel in the oil pan is vaporized.
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