Search found 8 matches

by Sameman
Fri Dec 25, 2015 8:35 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Ringbom had change direction or stop?
Replies: 3
Views: 3240

Re: Ringbom had change direction or stop?

Perhaps you are right. Dimensions of my engine barely corresponds to Mingfei Chen(2.19, from him book) formula (1-Tc/Th-Ar/A)*L*A/(lp*Ap) < 1, where is Tc cooler temperature Th heater temperature Ar cross section area of displacer driving rod A cross sectional area of displacer L 1/2 stroke of displ...
by Sameman
Wed Dec 23, 2015 12:49 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Ringbom had change direction or stop?
Replies: 3
Views: 3240

Ringbom had change direction or stop?

I've done a little engine. When it ran on little candle(about 45 Watt) before full warming-up it rotate 3-5 or 10 times enough quickly then stopped and began reversed rotate about as. After total warming-up it rotated in one direction with gud speed(240 rpm) but after 3-5 minutes just very qucly (2-...
by Sameman
Mon Dec 22, 2014 6:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Linear alternator discussion
Replies: 28
Views: 38610

Re: Linear alternator discussion

Does anybody use HDD Voice Coil Motor like linear alternator? How easy to connect working cylinder and VCM? Please help - where can I get example?
by Sameman
Mon Aug 04, 2014 6:22 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Correlation size of the steel wool displacer with normal?
Replies: 4
Views: 3485

Re: Correlation size of the steel wool displacer with norma

More thanks, I guessed about this factors, but I wait opinion of experienced builder engines with this type of displacer, who can give a quotient. In my opinion, it is about 5-8, depending of a temperature and speed. Perhaps every time not less than 5, but interesting a length depending of speed - 1...
by Sameman
Sun Aug 03, 2014 2:34 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Correlation size of the steel wool displacer with normal?
Replies: 4
Views: 3485

Correlation size of the steel wool displacer with normal?

Does anybody have experience to determine compliance approximate dimensions between steel wool displacer and normal? If swap volume of the normal displacer is one what is the swap volume of the steel wool displacer at the same sizes?
by Sameman
Tue Oct 08, 2013 4:54 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: New Members PLEASE read! - OR, having problems registering, being deactivated
Replies: 511
Views: 494238

Re: "Hi" We are new here!

More thanks, now I fixing some troubles with bearings and flywheel, use the available materials and possibility of accuracy.
by Sameman
Mon Sep 30, 2013 5:43 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: New Members PLEASE read! - OR, having problems registering, being deactivated
Replies: 511
Views: 494238

Re: "Hi" We are new here!

Ian, y're right. Now I have some troubles with building little Ringbom. First - calculation the spring, second - calculation the flywheel. But I'll solve them most quckly that registration.
by Sameman
Fri Sep 27, 2013 6:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: New Members PLEASE read! - OR, having problems registering, being deactivated
Replies: 511
Views: 494238

Re: "Hi" We are new here!

Finally, after one year trying to register and a lot of attempts I'm here!