Oil supply failure - propeller, Other Engineering

Assignment Help:

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 The Pawl has to be withdrawn by P.C.U. action before the blades can move to a finer pitch.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


Related Discussions:- Oil supply failure - propeller

Propeller terminology, PROPELLER TORQUE Propeller torque is produced by...

PROPELLER TORQUE Propeller torque is produced by the aerodynamic drag on the blades when in motion. Propeller torque acts in the plane of rotation and opposes engine torque.

Torsional divergence, Torsional Divergence Lets first try to explain a...

Torsional Divergence Lets first try to explain and interpret torsional divergence for the aerofoil structural model physically. An additional figure describing the mechanical s

Engineering mechanics questions, I need help in engineering mechanics quest...

I need help in engineering mechanics questions? Do you provide homework help, Please let us know how do i get it quich time...

Dsp, relationship between z plane and s plane in bilinear transformation me...

relationship between z plane and s plane in bilinear transformation method

Asset allocation, 7 refer(s) to the ability to convert assets to cash quick...

7 refer(s) to the ability to convert assets to cash quickly and at a fair market price and often increase(s) as one approaches the later stages of the investment life cycle

Internal rate of return: multiple alternatives, Internal Rate of Return: Mu...

Internal Rate of Return: Multiple Alternatives To compare multiple alternatives using the IRR as measure of economic worth we must use the incremental approach. It is erroneou

Civil engg projects, wat r d new transportation based projects for d civil ...

wat r d new transportation based projects for d civil engg. students..??

Important techniques for compacting of metal powders, Q.6 Define powder-met...

Q.6 Define powder-metallurgy. What are various important techniques for compacting of metal powders ? Ans. Powder metallurgy is a technique of producing metal powders and mak

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