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Integrated environmental control system

  • US 5,704,218 A
  • Filed: 04/08/1996
  • Issued: 01/06/1998
  • Est. Priority Date: 04/08/1996
  • Status: Expired due to Term
First Claim
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1. An integrated environmental control system for providing conditioned supply air to a load, which comprises:

  • a. first shaft including means for mechanically compressing and cooling the supply air;

    b. second shaft including means for mechanically compressing and cooling the supply air;

    c. common heat transfer component means for cooling the supply air through heat exchange relationship with a cooling fluid;

    d. a supply fluid delivery means for delivering the supply air separately into the first shaft means and the second shaft means and for delivering the supply air in common through the common heat transfer component means to the load; and

    e. shut off valve means for selectively shutting off delivery of the supply air to either the first shaft means or the second shaft means whenever the shut off valve means detects an interruption in flow of conditioned supply air from either the first or second shaft means so that the supply air continues to be conditioned by the non-interrupted shaft means and by heat transfer components of the common heat transfer component means.

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