Speed control in aircraft engine, Other Engineering

Assignment Help:

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


Related Discussions:- Speed control in aircraft engine

Corrosion cracking, offer an explanation for why cracking might have occurr...

offer an explanation for why cracking might have occurred. Give at least three suggestion on how to prevent this type of corrosion. You may supple with appropriate figures

Quality assurance and accreditation, how can i link quality assurance and a...

how can i link quality assurance and accreditation with a valid applicaion of my own work?

Basic electronics, A car battery is of 12 v. eight dry cells of 1.5 v each ...

A car battery is of 12 v. eight dry cells of 1.5 v each connected in series can give 12 v. but such cells are not used in starting a car. why?

Water, Dear Sir, Please answer the follwing question . Specs: Filterati...

Dear Sir, Please answer the follwing question . Specs: Filteration Capacity 18000 LPH , Tested pressure 6Kg/Sq.cm, Vertical MS pressure Sand filter(flat ends 6mm thick & di

Bio physiology Matlab Simulink Models, Review the lecture on BB document “P...

Review the lecture on BB document “Pharmacology …..” slide 6 where the solution for a 1st order system was demonstrated. The generic system is A(X)?(K1)?B(Y)?(K1’)?C(Z) 1. Cr

Oscilloscope probes, Direct probe,isolation probe,high impedence probe,acti...

Direct probe,isolation probe,high impedence probe,active probe,current probe

The oil pressure indicator - aircraft engine, The oil pressure indicator : ...

The oil pressure indicator : The oil pressure indicator has a dial normally calibrated in pounds per square inch (psi). The indicator may have max. limit markers, but will alw

Corporate Governance, What is the status of corporate governance in UAE?

What is the status of corporate governance in UAE?

Physics, what is electrical transmission and electromagnetic radiation in t...

what is electrical transmission and electromagnetic radiation in the form of energy transfer?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd