pressure bushing for connecting rod

culinadge · Post by **culinadge** » Thu Nov 29, 2007 12:46 pm

I want to build a stirling that I can pressurize. What should I use for the bushing or fitting where the connecting rod exits the displacer cylinder to connect with the flywheel?

Thanks for any suggestions.

Henrik · Post by **Henrik** » Tue Dec 04, 2007 11:23 pm

Hi

Im trying to make a pressurized engine like you are. The sealings I have found that might do the job are:

http://carstenholm.dk/page.asp?sideid=80&zcs=6

(type: Hat F)

They look like they have a low fiction.

How much pressure do you have i mind for your engine. I'll hope mine can run with up to 20 bar (290psi).

jesterthought · Post by **jesterthought** » Wed Dec 05, 2007 5:39 am

When considering seals, examine the pressure distribution on the section and estimate the resulting forces. Be aware of lubrication, distortions and jamming, too. Then make a prediction of friction.
As always, the Devil is in the detail. But insight pays off.
Jester.

Mountain Stirling · Post by **Mountain Stirling** » Fri Dec 07, 2007 7:35 pm

I am curious why pressurizing the canister will have any impact? Does this improve performance?

Henrik · Post by **Henrik** » Mon Dec 17, 2007 9:28 am

http://en.wikipedia.org/wiki/Stirling_e ... surisation