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:
May. 25, 1976
Filed:
Aug. 21, 1974
Applicant:
Inventor:
Geoffrey Arthur Lewis, Solihull, EN;
Assignee:
Lucas Aerospace Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ;
U.S. Cl.
CPC ...
60 3 / ; 60 3 / ; 60 3 / ;
Abstract
A fuel control system for a gas turbine engine has a pump which delivers fuel to a supply passage. A spill valve downstream of the pump is responsive to a servo pressure signal to spill fuel from the supply passage. A pilot valve is controlled by a torque motor to regulate the servo pressure signal. The torque motor is responsive to an electrical signal dependent on a difference between desired and actual engine speeds.