Research/Patents/US 5681144
US 5681144

TURBINE BLADE HAVING HAVING OFFSET TURBULATORS

Assignee

GENERAL ELECTRIC COMPANY A NY CORPORATION

Filed

Dec 17, 1991

Granted

Oct 28, 1997

Location

STRATHAM NH US

Abstract

A gas turbine engine blade includes an airfoil having first and second sides and an internal passage extending longitudinally therebetween for channeling air to cool the airfoil. Respective pluralities of first and second turbulator ribs extend inwardly from at least one of the first and second airfoil sides. Adjacent ones of second ends of the first and second ribs are staggered apart longitudinally and overlap chordally for defining a gap therebetween facing transversely for turning cooling air upon flow through the gap. The gap increases convective heat transfer enhancement for reducing cooling air requirements and improving blade creep life.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 12, 1992

Rescinded

Mar 18, 1997

Duration

4 years, 10 months

Inventor

  • 1SAMUEL D. SPRING

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