Search found 14 matches

by steedspeed
Sat Apr 07, 2018 2:48 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Temperature/preessure change while running?
Replies: 11
Views: 5021

Re: Temperature/preessure change while running?

I have a full cnc machine shop so I'm well equipped to make good quality parts. My hope is to come up with a commercially viable generator for cabins and for camping etc.
by steedspeed
Sun Feb 18, 2018 2:46 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Temperature/preessure change while running?
Replies: 11
Views: 5021

Re: Temperature/preessure change while running?

Thanks for the info guys. So Ralf. In one rotation the pressure change is how much psi? I'm not quite understanding what you mean. I'm trying to work out the force applied to the piston. I'm going to use a two 4 inch diameter pistons. I also had another thought. Has anyone tried putting a bit of wat...
by steedspeed
Mon Feb 05, 2018 10:46 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Making a stirling engine 5 kw generator
Replies: 8
Views: 5597

Re: Making a stirling engine 5 kw generator

Is it better to go single cyl or twin?
by steedspeed
Mon Feb 05, 2018 7:21 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Temperature/preessure change while running?
Replies: 11
Views: 5021

Re: Temperature/preessure change while running?

Yes. I'm thinking of gearing up the flywheel so it carries the slow moving crank past TDC and keeps it going
by steedspeed
Sun Feb 04, 2018 8:36 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Temperature/preessure change while running?
Replies: 11
Views: 5021

Re: Temperature/preessure change while running?

Ok. I'm thinking of building a Stirling that runs fairly slow soit has more time to heat and cool and uses the resulting torque to do work rather than high speed but low HP
by steedspeed
Sun Feb 04, 2018 3:10 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Using air cylinder for power piston?
Replies: 4
Views: 2584

Using air cylinder for power piston?

Has anyone tried using an air cylinder for a power piston?
by steedspeed
Sun Feb 04, 2018 3:03 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Temperature/preessure change while running?
Replies: 11
Views: 5021

Temperature/preessure change while running?

Hi everyone. I'm wondering if anyone knows what the pressure change is inside a Stirling engine while it is running?
by steedspeed
Wed Jan 24, 2018 10:32 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Piston rings, O-rings or what?
Replies: 11
Views: 4086

Re: Piston rings, O-rings or what?

I love those old engines. This will be my first hot air engine. Before that I built a "Masie" live steam engine years ago.
by steedspeed
Tue Jan 23, 2018 9:29 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Piston rings, O-rings or what?
Replies: 11
Views: 4086

Re: Piston rings, O-rings or what?

I thought about the diaphragm but I want the cold cylinder walls to contact the air as it reaches BDC
by steedspeed
Mon Jan 22, 2018 2:35 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Piston rings, O-rings or what?
Replies: 11
Views: 4086

Re: Piston rings, O-rings or what?

Thanks! BTW, has anyone tried using a rolling diaphragm seal?
by steedspeed
Mon Jan 22, 2018 12:59 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Piston rings, O-rings or what?
Replies: 11
Views: 4086

Re: Piston rings, O-rings or what?

I'm going with two 4 inch diameter pistons.
by steedspeed
Sun Jan 21, 2018 8:12 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Piston rings, O-rings or what?
Replies: 11
Views: 4086

Piston rings, O-rings or what?

So! Best seal for a stirling engine power piston?
by steedspeed
Sun Jan 21, 2018 8:10 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: "Hi...We are new here!" First posts here (or anywhere is OK)
Replies: 443
Views: 195638

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Hi everyone. I'm 51 this year and got my first introduction to stirling engines back in 1980 when I was a school kid. I was more interested in model steam engines back then and my good friend and mentor Les Warnett helped me learn the design and machining process. These days I have a very successful...