Research/Patents/US 5667359
US 5667359

CLEARANCE CONTROL FOR THE TURBINE OF A GAS TURBINE ENGINE

Assignee

UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT A CORP. OF DE

Filed

Aug 24, 1988

Granted

Sep 16, 1997

Location

PALM BEACH GARD FL US

Abstract

An aerodynamic buffer zone in the gap between the tip of an air cooled axial flow turbine blade of a gas turbine engine and its surrounding shroud or seal (outer air seal) is created by discretely discharging a high velocity stream of cooling air from the tip of the blade in a judicious direction. The stream is angularly oriented relative to the plane of rotation of the turbine so that it is discharged in the gap in the direction of the pressure side of the turbine and preferably at between a 15°-45° angle relative to the flat surface of the tip of the blade.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 29, 1989

Rescinded

Apr 9, 1997

Duration

8 years

Inventor

  • 1FRANK W. HUBER

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