Oil supply failure - propeller, Other Engineering

Oil supply failure - Propeller:

To prevent an overspeed caused by an oil supply failure, one of two methods may be employed:

• Hydraulic lock valve The pitch lock mechanism houses a valve called the 'hydraulic lock valve'. This is a spring loaded ball valve opened by fine pitch oil pressure and closed by a spring. In the event of an oil supply failure the hydraulic lock valve closes and acts like a non-return valve to trap coarse pitch oil in the pitch change cylinder. The oil trapped in the cylinder prevents centrifugal twisting movement (CTM) from turning the propeller blades towards fine pitch without affecting the feathering ability if the propeller.

2263_oil supply faliure.png

• Mechanical locking device  A rachet mechanism allows the propeller to move to coarse pitch and to be feathered. The Pawl has to be withdrawn by P.C.U. action before the blades can move to a finer pitch.

426_oil supply faliure1.png

Posted Date: 9/14/2012 4:24:22 AM | Location : United States







Related Discussions:- Oil supply failure - propeller, Assignment Help, Ask Question on Oil supply failure - propeller, Get Answer, Expert's Help, Oil supply failure - propeller Discussions

Write discussion on Oil supply failure - propeller
Your posts are moderated
Related Questions
why is it necessary for all engieers to about manufacturing process

Ask queelectron - proton hypothesis

Vibration Analysis Gas turbine engines have extremely low levels of vibration compared to piston engines. Changes in vibration levels could occur therefore without being notic

Sharpe Knife Company expects sales next year to be $1,500,000 if the economy is strong, $800,000if the economy is steady, and $500,000if the economy willb e strong, a 50 percent pr

With the help of circuit diagram and the waveforms,explain the working of a negative clipper with positive biasing voltage.also explain the Same concept in series clipper circuit

Suppose you have $50,000 that you want to invest in two companies, Bethlehem Books and Allentown Audio. Bethlehem has a return of 10% and standard deviation 15%, while Allentown ha

Piezoelectric Accelerometer Piezoelectric accelerometers are widely used for vibration measurements due to their low cost and very wide frequency range for which the sensitivit

Describe the operation an 8086 will perform when it excutes ADD AX,BX

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

TELL ME THE WORKING OF BASIC WAVE ANALYZER WITH DIAGRAM