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Engine cooling system with overload handling capability

  • US 7,735,461 B2
  • Filed: 02/19/2008
  • Issued: 06/15/2010
  • Est. Priority Date: 02/19/2008
  • Status: Expired due to Fees
First Claim
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1. An engine cooling system for a liquid cooled internal combustion engine;

  • said engine cooling system comprising;

    (a) an engine adapted for transferring waste heat into said liquid coolant;

    (b) a radiator adapted for transferring said waste heat from said liquid coolant to ambient air;

    (c) a water pump arranged to circulate said coolant between said engine and said radiator;

    (d) an auxiliary line with an auxiliary valve for selectively flowing said liquid coolant therethrough; and

    (e) phase change material (PCM) in thermal communication with said liquid coolant in said auxiliary line for transiently absorbing said waste heat from said liquid coolant;

    wherein;

    said cooling system is arranged to maintain the temperature of said liquid coolant near a predetermined normal operating temperature T0; and

    said PCM has a melting temperature Tmelt which is higher than said predetermined normal operating temperature T0.

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