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

Agricultural engineering , Agricultural engineering does not easily mean on...

Agricultural engineering does not easily mean only fruits and vegetables formed from the fields. Agriculture has come up with a dissimilar  look now. When you open a paouch of chip

Fluid (liquid) ice protection systems, FLUID (LIQUID) ICE PROTECTION SYSTEM...

FLUID (LIQUID) ICE PROTECTION SYSTEMS: Liquid ice protection systems can be used as either anti-ice or de-ice systems.  The system is designed to project a film or fluid over t

Linear programming application in software industry, What could be applicat...

What could be application of linear programming in software development?

Java, 2. Differentiate between stream oriented and data gram oriented socke...

2. Differentiate between stream oriented and data gram oriented socket in java?

Pneumatics, 3. Design and draw a circuit using the cascade system to operat...

3. Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinde

Flames obtained in an oxyacetylene gas welding process, Q.  Describe the t...

Q.  Describe the types of flames obtained in an oxyacetylene gas welding process giving the applications. There are three types of flames in the gas welding on the base of the

Engine drains, ENGINE DRAINS. There are two types of drains: • Con...

ENGINE DRAINS. There are two types of drains: • Controlled drains - the result of normal operation. • Uncontrolled drains - the result of abnormal operation. CONTROLLE

Engineering economy , A project has a first cost of $2000. There is another...

A project has a first cost of $2000. There is another cost at the end of year 1 of $500 and the income for year 3 until 6 year is $1000 per year. If the compounding is quarterly, c

Trading , how to find the net profit of given data

how to find the net profit of given data

Torque indication - aircraft engine, Torque indication: Turboprop and t...

Torque indication: Turboprop and turboshaft engines do not provide significant thrust through their jet pipes, so EPR would not be of any use in determining the thrust being pr

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