Research/Patents/US 4995232
US 4995232

RUNNING CONTROL FOR A GAS TURBINE ENGINE

Assignee

LUCAS INDUSTRIES PUBLIC LIMITED COMPANY

Filed

Aug 4, 1986

Granted

Feb 26, 1991

Location

BIRMINGHAM EN GB

Abstract

A running control for a gas turbine engine includes a fuel control responsive to an input signal which corresponds to a desired rate of change of engine speed. A speed governor circuit generates a first output signal corresponding to a difference between demanded and actual speeds. Limit signal generators provide second and third signals which correspond to permitted acceleration and deceleration respectively. The second and third signals are integrated and a selected one of the first, second or third signals is applied to the fuel control. At least the integrator for the second signal can be reset by a feedback arrangement which modifies the integrator input in accordance with a difference between the desired rate of change of engine speed and the second signal.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Feb 22, 1988

Rescinded

Jun 25, 1990

Duration

2 years, 4 months

Inventor

  • 1ARTHUR E. SUTTON

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