The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 1983
Filed:
Sep. 19, 1980
Applicant:
Inventors:
Robert G Burrage, Solihull, GB;
Michael J Joby, Solihull, GB;
Assignee:
Lucas Industries Limited, Birmingham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ;
U.S. Cl.
CPC ...
60 39281 ; 60243 ;
Abstract
A gas turbine engine fuel control system includes an hydromechanical speed governor fuel flow control with an electromechanical trim. The trim is controlled by a proportional-plus-integral controller in accordance with the error signal from an error amplifier comparing an engine parameter with a desired value of that parameter. A trim datum signal is produced by a suitable generator circuit and, if the error signal (or its rate of charge) exceeds a set maximum, the integrator is set to a new value.