200,000rpm 20Hp gearbox 2

[smi3th]

I hope this is a good place to ask this question...I'm a physicist that got into something where I don't have any practical experience; A friend of mine, an automotive transmission-designer, recommended this website.

I have an engineering problem that can be solved by a small turbine engine developing about 20hp. These things exist, but the shaft rpm is in six figures and I need an output rpm in the low four figures.

Does gear-technology even exist to deal with these speeds and power levels?

The simple answer I need is size and weight, and someone who already makes these things.

If all I can get is sympathy and some discussion of the technological issues, even that would help <grin>.

 

[SAITAETGrad]

This masters thesis focuses on 20hp-30hp:

http://digital.library.okstate.edu/etd/Ravi_okstate_0664M_10875.pdf

 

[dgapilot]

This one has more power, 95shp, but is what is used on a couple homebuilt helicopters. It's based on an APU turbine.

http://www.avonaero.com/solar2a.htm

 

[FeX32]

Why 25hp? Most application demand a torque and speed. If you can break down the Hp into further fundamental traits more options can be proposed.


Fe