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What Is This Engine Sense Line Component  
User currently offlinedhawald3 From India, joined Jun 2011, 17 posts, RR: 0
Posted (1 year 6 months 4 weeks 22 hours ago) and read 3148 times:

Hi,



This is the picture of a component in the stage 12.5 pressure sense line that goes in the EEC.
It is of the IAE V2527 engine

They can also be found in other sense lines as well.

What is the purpose of it and how does it work??

2 replies: All unread, jump to last
 
User currently offlinetdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 1, posted (1 year 6 months 4 weeks 22 hours ago) and read 3129 times:

Quoting dhawald3 (Thread starter):
What is the purpose of it and how does it work??

The sense line is just a tube; it is a pressure tap that connects some point within the engine (in this case, between the 12th and 13th compressor stages) to a pressure transducer in the EEC. These lines provide all the primary pressure data to the EEC.

The blocky thing in the middle of the shot is probably a moisture trap; when you take the hot engine air out to the outside of the engine case you can sometimes get condensation. This can block the tube so they will usually have collection points at the low spots in the lines. Based on the look of it, it might also be some kind of damper/accumulator to even out pressure pulses.

Tom.


User currently offlineCALTECH From Poland, joined May 2007, 2178 posts, RR: 25
Reply 2, posted (1 year 6 months 1 week 2 days 13 hours ago) and read 2445 times:

Quoting tdscanuck (Reply 1):
The sense line is just a tube; it is a pressure tap that connects some point within the engine (in this case, between the 12th and 13th compressor stages) to a pressure transducer in the EEC. These lines provide all the primary pressure data to the EEC.

Incorrect. It is the P12.5 Fan Exit Pressure, not a tap between the 12th and 13th compressor stages.It is a option on the V2500 engine. It gives a better analysis of the Engine Condition. As Tom states, that rectangular component, is probably a moisture trap/check valve type component. Will see if a better description is out there.



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