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:
Feb. 07, 1984
Filed:
Jan. 22, 1981
Robert B Matthews, Chandler's Ford, GB;
Guy E Davies, Fareham, GB;
Plessey Overseas Limited, Ilford, GB;
Abstract
An emergency fuel control system for an aircraft engine, which emergency fuel control system comprises means for supplying emergency fuel to the engine such that the fuel supplied to the engine is proportional to engine speed and pressure, first fluidic means which is controlled by a pilot's throttle lever giving a throttle demand and which includes fluidic sensor inputs for limiting engine performance, second fluidic means which has an acceleration control for generating a signal pressure as a particular function of engine compressor ratio, a fluidic mixer for mixing an acceleration control signal and a pilot's control signal such that the pilot cannot demand more fuel than it is safe for the engine to accept, and a fluidic output device which receives signals from the fluidic mixer and which generates a signal which has substantially the same shape as the acceleration control signal but which is at a lower level and which is used to define the minimum amount of fuel that is safely required by the engine in order to maintain combustion of the engine.