FUEL PUMP WITH INJECTION PRESSURE CHAMBER FOR A JET ENGINE AFTERBURNING SYSTEM
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2010, Vol 34, Issue 34
Abstract
This paper deals with a fuel pump with injection chamber, used as main fuel supplying system for an afterburning system, which can be able to serve on a jet engine (single-jet or twin-jet). The fuel system consists of: fuel pump with actuator, pressure ratio transducer, fuel injection chamber and on/off switching system. The author has established the mathematical model of this fuel system, which means the non-linear form, the linearised form as well as the non-dimensional form, based on the small perturbations method. This mathematical model, after the Laplace transformation applying, represents the system’s description as controlled object, as well as the basic elements of the block-diagram with transfer functions building. Furthermore, the author has realized some studies about the system’s stability and quality; the conditions for the system’s stability leads to some interesting results, concerning the criteria for the injection chamber’s parts choice. System’s quality studies consist of the system step response for the main controlled parameters, offering an image about the system’s behavior, as well as about its operability and possibility of interconnection with other systems. The paper is based on some similar works of the author, as well as on similar works presented in the reference list, about aircraft jet engines and engines’ main parts as controlled object(s).
Authors and Affiliations
Alexandru Nicolae TUDOSIE
Keywords
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