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

Ic Packages, Ic Packages: Like transistors and other types of solid sta...

Ic Packages: Like transistors and other types of solid state components, IC's are mounted in packages, which protect them from moisture, dust and other types of contaminations.

Gating system design, A gating system is usually made up of :           ...

A gating system is usually made up of :                         (i) Pouring basin                                          (ii) Sprue well                         (iii) Ru

Aviation legislation - maximum take-off mass, Aviation legislation - MAXIMU...

Aviation legislation - MAXIMUM TAKE-OFF MASS: Aircraft companies intending to manufacture a new design must have approval under Chapter A8-1 of BCAR or JAR-21 (Certification Pr

Financial strategy and operations, Q. A. Microfinance case How would you va...

Q. A. Microfinance case How would you value the price of a Microfinance Institution? Using data available on the net, explain what would you consider the value of SKS (India) or Co

Request for quote, I need the following corporate finance problems complete...

I need the following corporate finance problems completed in an excel spreadsheet. How much would this cost? 1) An investment project requires a net investment of $100,000. The pr

Plastic processing methods , Q. Write short note on following :    ...

Q. Write short note on following :             (i) Compression moulding of plastics.             (ii) Injection moulding of plastics.

Die press assembly , how to make Die Press Assembly Drawing in autocad?

how to make Die Press Assembly Drawing in autocad?

VISIBLE LIGHT COMMUNICATION, Ask question #Minium 100 words accepted#RELATE...

Ask question #Minium 100 words accepted#RELATED QUESTION THAT CAN BE ASKED IN DEFENSE

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