The oil pressure indicator - aircraft engine, Other Engineering

The oil pressure indicator :

The oil pressure indicator has a dial normally calibrated in pounds per square inch (psi). The indicator may have max. limit markers, but will always show the minimum pressure that the engine is allowed to run at. The reason that some engines have an upper limit is dependant upon the type of oil supply system. Some systems may be regulated, therefore needing an upper limit, or be based upon flow where an upper limit is not required.
An example of an oil pressure indicating system is given in Fig. the pressure indicator has no upper oil pressure limit, however, the low pressure limit is shown as 15 psi. There is also a precautionary band, normally yellow in colour, that is set just above the lower limit in the case in Fig, an indication of between 15 and 25 psi in this yellow band during engine operation may require corrective action.

Any change in oil pressure introduced into the synchro transmitter causes an electrical signal to be transmitted through the interconnecting wiring to the synchro receiver. This signal causes the receiver rotor and the indicator pointer to move a distance proportional to the amount of pressure exerted by the oil.

Most oil pressure transmitters are composed of two main parts, a bellowsor diaphragm mechanism for measuring pressure and a synchro assembly. The pressure of the oil causes linear displacement of the synchro rotor. The amount of displacement is proportional to the pressure, and varying voltages are set up in the synchro stator. These-voltages are transmitted to the synchro indicator.

The vent tube to atmosphere prevents a build up of pressure within the transmitter that may interfere with the operation of the diaphragm at high altitudes.

 

2411_The oil pressure indicator.png

Posted Date: 9/12/2012 4:49:17 AM | Location : United States







Related Discussions:- The oil pressure indicator - aircraft engine, Assignment Help, Ask Question on The oil pressure indicator - aircraft engine, Get Answer, Expert's Help, The oil pressure indicator - aircraft engine Discussions

Write discussion on The oil pressure indicator - aircraft engine
Your posts are moderated
Related Questions
Commercial buildings - fire protection engineering: The term 'commercial buildings' refers to any buildings that are not residential buildings and that do not fall under the m

Inhibit Gate Occasionally it is required to 'hold' one input to an AND gate at a particular logic level in order to disable the entire gate. One method of representing this sy


Asymmetric Effect In general the axis of the propeller will be inclined upwards to the direction of flight due to the angle of attack of the aircraft.   This causes the dow


Present Worth equivalence: Since we have developed the relationship to find a future value F given a present value P, we can easily derive the formula to find a (P|F, i, n), w

"Suppose an investor acquired 1 Round lot of Walden stock at $30/share last year. If the investor received a $1.00 per share dividend during the year and sells the shares at year-e

Traditionally, seekers have been simple correlation trackers and a set of gimbals that are used to measure the angle rates of the target.          - Infrared seekers detect a

It consists o a source of x ray, with a number of collimated slits. Crystal under investigation is mounted on a table, and the position of this table can be recorded on vernier sca

working principle of storage oscilloscope