Research/Patents/US 5110050
US 5110050

GAS TURBINE ENGINE NOZZLE

Assignee

ROLLS-ROYCE (1971) LIMITED

Filed

Feb 15, 1979

Granted

May 5, 1992

Location

GB

Abstract

A variable geometry nozzle for a gas turbine engine in which a circumferential array of flaps are pivotally connected to the engine by their upstream ends, the flaps comprising interdigitated flexible and rigid flaps. The geometry of the nozzle is varied by drawing together the side edges of adjacent flexible flaps which causes pivoting of both the rigid and flexible flaps and a change in the curvature of the flexible flaps. The rigid flaps seal the spaces between the side edges of adjacent flexible flaps. A modification is shown using auxiliary radially outwardly flared flaps to provide convergent divergent geometry.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 15, 1982

Rescinded

Jul 7, 1987

Duration

5 years

Inventor

  • 1DOUGLAS JOHN NIGHTINGALE

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