Research/Patents/US 5816777
US 5816777

TURBINE BLADE COOLING

Assignee

UNITED TECHNOLOGIES CORPORATION

Filed

Nov 29, 1991

Granted

Oct 6, 1998

Location

JUPITER FL US

Abstract

Internal heat transfer of air cooled turbine blades of a gas turbine engine is enhanced by orienting the impingement holes that interconnect the air-cooled feed passage to the hybrid passageway internally of the blade in a more radial direction to minimize pressure drop losses. By improved mixing of the cooling air in the hybrid passageway the additional mechanical turbulence promoters can be utilized without sacrificing pressure losses.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 23, 1992

Rescinded

Mar 18, 1997

Duration

4 years, 8 months

Inventor

  • 1KENNETH B. HALL

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