Speed control in aircraft engine, Other Engineering

Speed control in Aircraft Engine:

Because the APU is designed to run at a constant rpm, some means must be provided to control this speed. Such a control device is known as a speed or rpm governor.

850_speed control.png

The speed governor is linked mechanically to the APU drive. As speed increases above 95%, the bob weights start to move outwards and begin to by-pass the fuel back to the inlet of the pump and as speed increases up to 100% rpm, it causes sufficient fuel to be by-passed by the governor, to maintain this rpm. Increase or decrease in the speed setting is achieved by adjustment of the governor spring. Note that at speeds below 95% rpm the by-pass valve controls the acceleration up to a maximum speed of 95% rpm.

397_speed control1.png

Posted Date: 9/12/2012 7:08:21 AM | Location : United States

Related Discussions:- Speed control in aircraft engine, Assignment Help, Ask Question on Speed control in aircraft engine, Get Answer, Expert's Help, Speed control in aircraft engine Discussions

Write discussion on Speed control in aircraft engine
Your posts are moderated
Related Questions
program how to estimate the inner curve using spline interpolation

variation of energy bands with alloy composition

Couplings: Because of the requirement to make maintenance tasks such as engine removal/refit, gearbox removal/refit easier, it is necessary to have a means of coupling the turb

Means of escape: The means of escape can start at any point inside a building where there may be people.      The means of escape end when 'ultimate safety' is attained out

Smoke control system: Where smoke control is installed in a building it is usual for there to also be sprinkler protection to the building and its contents.  This is necessary

Here, it is assumed that the crack is effectively longer than the value measured on the side of the specimen. If one assumes that it is longer by an amount Δ, then the new crack le

soil and water and irrigational projects

Seven years ago, after 15 years in public accounting, Stanley Booker, CPA, resigned his posiition as Manager of Cost Systems for Davis, Cohen, and O''Brien Public Accountants and s

Expertsmind.com offers Performing Numeric Computation matlab assignment help MATLAB contains numbers, precise, and technological innovation features to support all common tech

Signal modulation Modulation involves the modification of some property of a (usually sinusoidal) carrier waveform. The process of recovering the original signal from the modul