Pressure relief valve - aircraft engine, Other Engineering

Assignment Help:

PRESSURE RELIEF VALVE

The pressure relief valve shown in the figure. controls the oil pressure at the pre-set value demanded by the system. The valve is normally integral with the pump assembly and protects the system from excessive pressure. It is usually a spring-loaded plate-type valve, and can on some engines provide adjustment of pressure setting.

It is more usual to find a pressure relief valve that varies the pressure with engine speed or breather pressure. These valves are usually adjustable but usually only effect the max speed oil pressure see Figure.

1832_pressure filter1.png

This type of valve uses the oil system breather pressure and an adjustable spring to balance the oil pressure in the main oil feed line to the engine bearings.

Consider Fig With the engine running, the breather pressure plus the spring push the sliding valve to the left and restrict the pump spill back to return. This is balanced by the pressure from the main feed line trying to move the slide valve to the right. Should the pressure in the main feed line fall, the breather pressure and spring will move the slide valve further to the left and restrict the oil spill still further. This will allow more oil to flow to the system, and the oil pressure in the main feed line will increase. The slide valve will then move to the right, and the oil spill to the return will be controlled by the main feed line pressure balancing the spring and breather pressure.

 


Related Discussions:- Pressure relief valve - aircraft engine

Water distribution, examples dead end water distribution system

examples dead end water distribution system

Capital structure with risky debt and taxes, Relate your answers to Modigli...

Relate your answers to Modigliani and Miller propositions I and II. Capital structure with risky debt and taxes Now, in the Frog Island Republic debt is risky and shareholders own

Caselet- 2, suggestion regarding credit limit. should it be approved or not...

suggestion regarding credit limit. should it be approved or not what should be the amount of

Classification of plastic, Q. Discuss the classifications of plastics.     ...

Q. Discuss the classifications of plastics.                                                      OR      Discuss the general properties and classification of plastics.

Aeroengine - degree of reaction, Degree of reaction measures the way compre...

Degree of reaction measures the way compression or expansion (for turbines) is shared between rotor and stator shared between rotor and stator of a stage (stage ≡ rotor + stator)

New assembly buildings - fire protection engineering, N e w Assembly Buil...

N e w Assembly Buildings: 12.1.1.1 The requirements of this chapter shall apply to new buildings or portions thereof used as an assembly occupancy. 12.1.3.2 Simultaneous

MBA Financial management, Need urgent help with Financial Management homewo...

Need urgent help with Financial Management homework assignment - evaluating company "Billabong". Due Fri 8 June (Sydney, australia time).

Terrestrial telescope., how to making terrestrial tele scope an how its wor...

how to making terrestrial tele scope an how its work and formulation of terrestrial telescope

Fibre optics communications, explain the fibre optic communication system w...

explain the fibre optic communication system with block diagram

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