Cooling apparatus for internal combustion engine
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United States of America Patent
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Oct 12, 2021
Grant Date -
May 21, 2020
app pub date -
Oct 22, 2019
filing date -
Nov 19, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A cooling apparatus includes a circulation circuit, a pump, a flow rate adjustment valve, and a controller. The flow rate adjustment valve includes a valve member that rotates to change an open degree of the flow rate adjustment valve and a stopper that moves between a restriction position and a retraction position. The controller is configured to execute, when maintaining the open degree of the flow rate adjustment, a preparatory process of moving the stopper to the restriction position after arranging the stopper at the retraction position and arranging the valve member further in the valve-closing direction than the stopper through control of the pump discharge amount.
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