Engine cooling apparatus
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United States of America Patent
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Issued Date -
Feb 2, 2012
app pub date -
Jul 25, 2011
filing date -
Jul 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides an engine cooling apparatus that is capable of suppressing cavitation in a high rotation region while achieving an increase in a circulation flow rate of cooling water in a low/medium rotation region. The engine cooling apparatus includes: a main cooling water circuit that circulates the cooling water between an engine and a radiator; a branch portion provided between the engine and the radiator; a thermostat; temperature detecting means; a first bypass flow passage; a second bypass flow passage that connects the engine to the branch portion; a control valve; a bypass convergence portion; a water pump; valve opening control means; and engine rotation speed detecting means.
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