Oil supply device
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United States of America Patent
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Mar 16, 2021
Grant Date -
Oct 4, 2018
app pub date -
Jan 16, 2018
filing date -
Mar 28, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An oil supply device configured to supply oil to a turbocharger of an engine includes a first oil pump, a second oil pump, a first valve, and a second valve. The first oil pump is coupled to a bearing unit of the turbocharger via an oil supply path, and configured to supply oil to the bearing unit. The second oil pump is coupled to the bearing unit via an oil discharge passage, and configured to suck oil from the bearing unit. The first valve is provided in the oil supply path. The first valve is switchable from a connected state to a disconnected state when the engine is to be stopped. The second valve is provided in the oil discharge passage. The second valve is switchable from a connected state to a disconnected state when the engine is to be stopped.
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