Search found 6 matches

by Pete_vb
Wed Apr 26, 2017 7:42 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Power producing low delta T state of the art?
Replies: 11
Views: 12978

Re: Power producing low delta T state of the art?

What was so revolutionary about your Stirling engine? You had a year to patent that but that timeframe expired long ago. So you might as well share the idea. Post a picture, etc. There is no time limit from date of invention until filing. You can file whenever you want, but under "first to fil...
by Pete_vb
Mon Apr 17, 2017 4:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Power producing low delta T state of the art?
Replies: 11
Views: 12978

Re: Power producing low delta T state of the art?

I just try to limit my online footprint where possible. That said... www.glasspoint.com
by Pete_vb
Sun Apr 16, 2017 4:19 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Power producing low delta T state of the art?
Replies: 11
Views: 12978

Re: Power producing low delta T state of the art?

Wow, I got an email on this, blast from the past. I did make a second prototype that hit about 1 mechanical watt output from similar dimensions and delta T around the time I posted this. Not long after I shelved the work because I never found a great application for it. I keep my eyes open, but in s...
by Pete_vb
Fri Jan 26, 2007 3:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Power producing low delta T state of the art?
Replies: 11
Views: 12978

Thanks Stefan, I've seen some of the NASA designs with much higher temperature differences- they look very nice. I'm not aware of anything they did in this temperature range, though- any info on that? Or any links to the Phillips effort, which from what I've read so far also looks like it's higher t...
by Pete_vb
Fri Jan 26, 2007 10:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Power producing low delta T state of the art?
Replies: 11
Views: 12978

Power producing low delta T state of the art?

I figure this forum could be the best place to see how my new machine stacks up, so I thought I'd ask the experts: I've just finished a small prototype heat engine: -Dimensions: 6" by 1.5" by 1.5" -.5 watts mechanical output at 50 degree C temperature difference -30C minimum temperatu...