Speed control in aircraft engine, Other Engineering

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

Posted Date: 9/12/2012 7:08:21 AM | Location : United States







Related Discussions:- Speed control in aircraft engine, Assignment Help, Ask Question on Speed control in aircraft engine, Get Answer, Expert's Help, Speed control in aircraft engine Discussions

Write discussion on Speed control in aircraft engine
Your posts are moderated
Related Questions
Evacuation in a hospital - fire protection engineering: An evacuation in a hospital is very unlikely to require anyone to go outside. The buildings are split into numerous fir


A continuous fractionating column separates benzene and toluene into two product streams. We were given all the mass fractions which makes this question easy because all we must ca

Smoke control system: Where smoke control is installed in a building it is usual for there to also be sprinkler protection to the building and its contents.  This is necessary


PROPELLER OVERSPEED GOVERNORS: These devices protect against overspeed, they are separate governors to the P.C.U. and direct oil during an overspeed situation to coarsen the bl

Flow at low Mach number and zero incidence about M6 wing Results from FP were obtained corresponding to M ∞ = 0.2 and a = 0 and, as noted, with the input files generated by FP

problem on dissociation constant

Expertsmind.com  brings you unique solution in Electrical Engineering   How does OR gate work? An 'OR' gate is like two or more switches positioned in parallel.

QUESTION 2: Wing Yin Tsui, CEO of Lian Huang & Wong Bin Dean Hwang Manufacturing Limited is considering a four year project. The project requires an initial investment of $10,000,0