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NACELLE INNER LIP SKIN WITH HEAT TRANSFER AUGMENTATION FEATURES

  • US 20180194485A1
  • Filed: 01/06/2017
  • Published: 07/12/2018
  • Est. Priority Date: 01/06/2017
  • Status: Active Grant
First Claim
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1. A nacelle inlet structure for an aircraft propulsion system, comprising:

  • an inlet lip comprising an inner lip skin and an outer lip skin;

    a bulkhead configured with the inlet lip to form a cavity axially between a forward end of the inlet lip and the bulkhead and radially between the inner lip skin and the outer lip skin, wherein the cavity extends along a longitudinal centerline within the inlet lip;

    a nozzle configured to inject fluid approximately longitudinally into the cavity; and

    a plurality of heat transfer augmentation features configured with the inner lip skin and operable to interact with the fluid within the cavity in order to promote heat transfer between the inner lip skin and the fluid within the cavity.

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