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Control oil pressure doesn’t increase

Control oil pressure doesn’t increase

Control oil pressure doesn’t increase

(OP)
We have a turbine compressor it’s governor doesn’t open during pressure cannot increase above 2 bar and the lube oil pump discharge pressure is 12 bar. In addition, knob speed is fully open

RE: Control oil pressure doesn’t increase

Perhaps a few more details, like a system schematic or at least a maker and part number or both?

RE: Control oil pressure doesn’t increase

What is control oil pressure? The power piston pressure? If it's a Woodward governor it has its own oil pump and governor oil pressure should be independent of the turbine lube pressure.

RE: Control oil pressure doesn’t increase

(OP)
I think governor has problem in the spring

RE: Control oil pressure doesn’t increase

I assume that the turbine is not running and that the dump valves are open and dumping the control oil pressure to the drain. What is the state of the turbine (running or not running) and the T&T valve (latched or not latched)? What type of governor does it use. What is the make of the turbine. A diagram of the system would help. Something like this:

https://res.cloudinary.com/engineering-com/image/upload/v1610976244/tips/T29C1_Governor_Linkage_br39of.bmp

Johnny Pellin

RE: Control oil pressure doesn’t increase

call the manufacturer ? read their manuals ??

another day in paradise, or is paradise one day closer ?

RE: Control oil pressure doesn’t increase

Or maybe some punctuation, capital letters, and coherent sentences? That might help.
This is an engineering forum. Not a text chat room with your buddies. A good engineer values clear communication.

RE: Control oil pressure doesn’t increase

This is like saying "My car won't start - Any ideas why not?"

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Control oil pressure doesn’t increase

I have seen Woodward governors wear a groove in the thrust washer under the speeder spring. This prevents the weights from moving.

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