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Battery cooling

  • US 8,505,322 B2
  • Filed: 10/11/2010
  • Issued: 08/13/2013
  • Est. Priority Date: 03/25/2009
  • Status: Expired due to Fees
First Claim
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1. A battery cooling system, comprising:

  • a cooling fluid circulation path thermally coupled to a working fluid flow path and to at least one battery cell in a battery pack;

    a pump that maintains a fluid flow through the working fluid flow path;

    an evaporator that operates in the critical flow regime of the working fluid and generates a compression wave that shocks the maintained fluid flow, thereby changing the pressure of the maintained fluid flow to cool the fluid, the fluid flow provided to the evaporator by the pump without passing through a heater; and

    a heat exchanging mechanism thermally coupled to the fluid flow path, the heat exchanging mechanism removing heat from the battery pack.

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