Electro-mechanical fuel control, Other Engineering

Assignment Help:

Electro-mechanical fuel control:

The start fuel valve and ignition are energised as soon as rotation (3%) is sensed by an Electronic Sequence Unit (ESU). At 14% and with rising EGT the main fuel valve is opened. The acceleration rate is controlled by the acceleration schedule adjuster, however this is modified by the differential pressure regulator which uses compressor discharge pressure to vary the fuel flow to the engine. At 50% the starter cuts out. When the engine reaches 85% the start fuel valve closes and the ignition is de-energised. The engine governor then takes over and controls the engine to 100%. As the engine passes 95% plus 3 seconds, the max fuel valve energises open and bypasses the acceleration adjuster and full control of the engine is given to the governor. If the engine is shut down both the Main and Max fuel valves are closed.

418_Electro-mechanical fuel control.png

The ESU has indicators that indicate which step of the start sequence the APU is at and the resets at 95% + 3sec to act as BITE indicators.

 


Related Discussions:- Electro-mechanical fuel control

Econometrics coursework, Hello this is Lee, I have an Econometrics coursewo...

Hello this is Lee, I have an Econometrics coursework to be helped by some experts from your company. Please send me your reply asap Lee

A/c question 1, Briefly describe a simple method of estimating summer outsi...

Briefly describe a simple method of estimating summer outside air conditions for the design calculations of an air conditioning scheme. If a more accurate assessment of heat gains

Sintering, Q. What is sintering ? Explain the stages of sintering. An...

Q. What is sintering ? Explain the stages of sintering. Ans. The operation of heating a green compact to an elevated temperature is known as sintering. It is a process by

Mode ii interlaminar fracture , The Mode II fracture toughness is measured ...

The Mode II fracture toughness is measured using the ENF  Typically, the specimen length is 120 mm, the width B is 20 mm, the thickness is between 3 and 5 mm and the distance be

Drilling assignment, I need help in doing a project in excel that has ever...

I need help in doing a project in excel that has everything about drilling like mud pump etc ..

Refrigeration, can liquid reciever determine amount f refrigerant charged i...

can liquid reciever determine amount f refrigerant charged into the system

The research about thermoset polymer products, Chemical Engineering The re...

Chemical Engineering The research about thermoset polymer products. For example Polyimide Film Thermosetting and Pressure-Sensitive Adhesive Tape.

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?

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