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. 12, 1992
Filed:
Apr. 11, 1990
Plato J Leeson, Rockford, IL (US);
Woodward Governor Company, Rockford, IL (US);
Abstract
A fuel delivery system for an aircraft gas turbine engine which provides a monitor intended to estimate, from actual engine starting or operating conditions, whether the fuel delivery system is capable of meeting predetermined operating specifications, such as adequate capacity for a windmill restart. The differential pressure regulating valve, which is normally provided to maintain a constant pressure drop across the metering valve which meters fuel to the jet turbine engine, has a position monitor associated therewith. A signal relating to the regulating valve position is processed along with a signal indicating the corresponding actual engine operating conditions, to determine 'excess capacity' at the operating condition and estimate from the information whether the engine will likely be capable of meeting worst case demands.