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:
Jun. 02, 1992
Filed:
Sep. 04, 1990
Applicant:
Inventor:
Anthony N Martin, Simsbury, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417-3 ; 417426 ; 60734 ;
Abstract
A dual pump fault tolerant fuel delivery system for providing a metered fuel flow to an aircraft gas turbine engine, combines a fixed displacement pump with a demand control pump operating at a speed commanded by an electronic engine control such that the electronic engine control can provide the metered fuel flow by controlling the speed of the demand control pump and the area of a metering valve to reduce the temperature of the fuel in comparison to fuel systems employing a fixed displacement pump, a pressure regulating valve and a bypass fuel flow system.