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Re: What are the challenges for making an engine that does real work?

Posted: Tue Jan 03, 2017 5:38 pm
by cbstirling2
If one used a magnetic clutch, one could completely enclose the stirling engine with the only seal being the Schrader valve.
The benefit here being good being no seals against a moving shaft, so that be very simple I would suspect.
Has anyone tried this?

Looks like someone patented the idea back in 1996:
https://www.google.com/patents/EP0918924A1?cl=en

Re: What are the challenges for making an engine that does real work?

Posted: Tue Jan 03, 2017 8:40 pm
by Aviator168
Magnetic couplers are nice. But the designer has to make compromise between weight and torque.

Re: What are the challenges for making an engine that does real work?

Posted: Wed Jan 04, 2017 1:17 am
by Ian S C
I think Andy Ross mentioned a magnetic coupling he tried on one of his motors in "Making Stirling Engines".
Ian S C

Re: What are the challenges for making an engine that does real work?

Posted: Wed Jan 04, 2017 7:18 am
by Aviator168
Yes. He did with his 230w engine. Magnetic coupling can also transmit high power through a thick "semi" magnetic medium; but not the way he did it.