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

Time value of money-inflation-interest rate-opportunity cost, Time Value of...

Time Value of Money Consider your cheese steak hoagie business. Assume that Phillies will win another World Series, and your business will be hired to serve a party that will

Low pressure turbine clearance control valve - aircraft, Low pressure turbi...

Low pressure turbine clearance control valve: At take-off and low altitude the valve is in its normal closed position allowing cooling airflow to the core compartment. When an

Electrical de-icing system maintenance, ELECTRICAL DE-ICING SYSTEM MAINTENA...

ELECTRICAL DE-ICING SYSTEM MAINTENANCE: Tests of the system must be carried out when the servicing schedule required it or when a component has been replaced.  Typical tests ar

Roof bolt support performance, A certain coal mine has weak layer comprisin...

A certain coal mine has weak layer comprising of 10cm, 11cm, 9cm, 12cm, 15cm , and 19cm of inter laminated shales and mudstone. Design a full column resin bolt support system if th

Automatic interior car lights control, hi there, i need to know if its poss...

hi there, i need to know if its possible to create a circuit of automatic interior car lights control

Siliconizing, 1.defination 2.explain the mechanisms of each process. 3. exp...

1.defination 2.explain the mechanisms of each process. 3. explain in detail how many types of each process 4. advantages 5. disadvantages

Absolute return fund, What is Absolute Return Fund The absolute return stra...

What is Absolute Return Fund The absolute return strategies develop returns from active management with small or no underlying market exposure, seeking to achieve positive returns

Unconventional gas, hey i need help in unconventional gas assignment, pleas...

hey i need help in unconventional gas assignment, please let me know if u can do this so

Continuity equation - ducts and nozzles, Continuity equation If we co...

Continuity equation If we consider the machine to be an open-ended duct, we find that the mass flow per second will depend on the density of the fluid and the volume flowing

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