Research/Patents/US 6139258
US 6139258

AIRFOILS WITH LEADING EDGE POCKETS FOR REDUCED HEAT TRANSFER

Assignee

UNITED TECHNOLOGIES CORPORATION, A CORP OF DE.

Filed

Mar 30, 1987

Granted

Oct 31, 2000

Location

CHULA VISTA CA US

Abstract

A gas turbine engine airfoil leading edge includes depressions therein longitudinally spaced apart and centered on stagnation points. The depressions stay filled with relatively stationary air during engine operation and reduce the heat load at the leading edge, which is primarily cooled by an internal supply of cooling fluid.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 11, 1987

Rescinded

Feb 28, 2000

Duration

12 years, 5 months

Inventor

  • 1WILLIAM F. LANG

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records