Research/Patents/US 5136840
US 5136840Tier 3 — General Defense

GAS TURBINE ENGINE ACTUATION SYSTEM

Assignee

General Electric

Filed as: GENERAL ELECTRIC COMPANY

Filed

Sep 30, 1982

Granted

Aug 11, 1992

Location

CINCINNATI OH US

Abstract

An actuation system for a gas turbine engine is provided for axially translating an annular member such as a cylindrical sleeve valve of a variable area bypass injector (VABI). In one embodiment, the actuation system comprises a crankshaft rotatably attached at an outer casing of the engine for transmitting rotational movement. A crankarm is pivotally connected between the annular member and the crankshaft for transmitting rotation of the crankshaft to helical motion of the annular member. Two linkarms are circumferentially spaced from the crankarm, and are pivotally connected between the annular member and the outer casing. The linkarms are effective for synchronizing the motion of the annular member when the crankshaft is rotated.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 18, 1982

Rescinded

Feb 11, 1992

Duration

9 years, 2 months

Inventor

  • 1DUDLEY O. NASH

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