Cooling system having shock reducing valve
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United States of America Patent
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Sep 2, 2014
Grant Date -
Jun 5, 2014
app pub date -
Nov 30, 2012
filing date -
Nov 30, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A cooling system for an engine includes a pump driven by the engine and configured to circulate coolant through the engine. The cooling system also includes a heat exchanger configured to receive coolant from the engine and to reduce a temperature of the coolant. The cooling system further includes a thermostat fluidly connected to the engine and the heat exchanger. The thermostat is configured to selectively direct coolant from the engine to the heat exchanger when a temperature of the coolant is greater than a temperature threshold of the thermostat. The thermostat is also configured to substantially block coolant from passing to the heat exchanger when the temperature of the coolant is less than or equal to the temperature threshold. The cooling system also includes a valve fluidly connected to the engine and the heat exchanger, and connected in parallel with the thermostat. The valve is configured to direct a portion of the coolant exiting the engine to the heat exchanger during a first operating condition. During the first operating condition, a pressure of the coolant exiting the engine is greater than a pressure threshold of the valve.
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