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

Depreciation Tax Calculation, Depreciation Calculation Two most popular me...

Depreciation Calculation Two most popular methods of charging depreciation are: straight line and diminishing balance or written-down value (WDV) methods. For reporting to the sha

Balanced mutual fund, Balanced Mutual Fund The mutual fund that objective i...

Balanced Mutual Fund The mutual fund that objective is a balance of stocks & bonds. Balanced funds refer to be less volatile than stock only funds. The return or principal value of

Home inventory system, Software House PLC (SHP) is a pan European software ...

Software House PLC (SHP) is a pan European software development group that operates in the UK and the European Union. The company develops and markets off the shelf & bespoke softw

Plane transmission diffraction grating, A diffraction grating is an optical...

A diffraction grating is an optical element that diffracts light into its constituent wavelength (colors). It is an excellent device used in laboratory to study the spectra. Co

8051, Architecture of 8051

Architecture of 8051

Time value money, I want to buy a car. The Msrp is $31,000. I pay $516 per ...

I want to buy a car. The Msrp is $31,000. I pay $516 per month for five years. The quoted apr is 6.9%. I put down $800. How much did I pay for the car?

thermoelectric effect, Thermoelectric effect The measurement of temper...

Thermoelectric effect The measurement of temperature using a thermocouple relies on Seebeck effect. The electrons occupy different energy levels in different materials

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