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SPINNER DE-ICING FOR GAS TURBINE ENGINES

  • US 3,834,157 A
  • Filed: 02/05/1973
  • Issued: 09/10/1974
  • Est. Priority Date: 02/05/1973
  • Status: Expired due to Term
First Claim
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1. A de-icing system for an annular hollow inlet spinner of a gas turbine engine rotatable about an axis and having an aerodynamic diverging outer shape terminating in a first diameter, said system comprising:

  • an annular heat-transfer surface on the interior of said spinner and having a diameter substantially less than said first diameter, said heat transfer surface being rotatable with and in heat transfer relation to the exterior surface of said inlet spinner upon which ice has a tendency to form;

    a nozzle nonrotatable relative to said spinner and spaced from said heat transfer surface for directing a stream of hot liquid against said surface thereby heating the exterior surface of said inlet spinner; and

    means forming a passageway extending aft from and coaxial with said heat transfer surface for carrying liquid away from said heat transfer surface, said passageway means having an interior diameter approximately the diameter of said heat transfer surface.

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