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 The Pawl has to be withdrawn by P.C.U. action before the blades can move to a finer pitch.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

Heat conduction problem in hollow cylinder, Heat conduction problem in holl...

Heat conduction problem in hollow cylinder There are a lot of researches for calculating the temperature field in various shapes using different boundary and initial cond

Noise suppression in aircraft design, Noise Suppression in Aircraft Design:...

Noise Suppression in Aircraft Design: It has been seen that the first step towards noise suppression is at the design stage of the rotating and static parts of the engine. The

Solve problems using dc electrical principles, Electronics Engineering Assi...

Electronics Engineering Assignment# Solve problems using DC electrical principles 1.3 A 220 F capacitor is required to store 11mJ of energy. What voltage needs to appear

Polymorphism, Q.  Define the polymorphism. Ans. POLYMORPHISM: It is d...

Q.  Define the polymorphism. Ans. POLYMORPHISM: It is defined as the change in atomic structure which occurs at a definite transformation temperature. The cooling diagram of

Advantages and disadvantages of integrated circuit, ADVANTAGES The smal...

ADVANTAGES The small size of the IC is its most apparent advantage. A typical IC can be constructed on a piece of semiconductor material that is less than 4mm2. Even when the

Calculate depreciation and amortization expense, Income statement: Sosa Cor...

Income statement: Sosa Corporation recently reported an EBITDA of $31.3 million and $9.7 million of net income. The company has $6.8 million interest expense, and the corporate tax

A/c question 1, Briefly describe a simple method of estimating summer outsi...

Briefly describe a simple method of estimating summer outside air conditions for the design calculations of an air conditioning scheme. If a more accurate assessment of heat gains

NIRAN, Why spiral model is called meta model?

Why spiral model is called meta model?

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