Search found 156 matches
- Wed Dec 28, 2016 9:11 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
The reason why I was thinking about the Manson engine are due to my thoughts about the relationship in size between the power and displacer pistons. What happens if you apply too much heat to a LTD stirling engine? Does the "extra" pressure make the engine less efficient? (Maybe it doesn't...
- Tue Dec 27, 2016 9:06 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
Bumpkin, I am trying to augment the ideas of the snifter valve and of Manson's engine. On a Manson engine, the displacer and power piston are connected. On tdc and BDC, there are ports to relieve excess pressure/vacuum. Now I suspect those ports are needed since the displacer and power p are not off...
- Tue Dec 27, 2016 7:36 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
cbstirling2, I think your diagram should have the cranks at 90* rather than the 180* that is shown. Ian S C My apologies for a confusing diagram. Or my apologies for being confused myself. I'm trying to figure this stuff out! ;) On the diagram for the half Manson type cylinders labeled C and D are ...
- Mon Dec 26, 2016 3:16 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: generators
- Replies: 32
- Views: 23929
Re: generators
I grabbed a 12 volt electric motor from a surplus store for only $2, it runs fine on 9 volt battery. When I tested for voltage after with a drill spinning it it does something very weird. At lower RPM it will generate up to about 6 volts but then it rather high RPM its voltage drops and then down to...
- Mon Dec 26, 2016 12:04 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
On a alpha engine. All you have to do is create a small air passage way inside the cold cylinder wall between the top of the piston and the skirt of piston when it is at half stroke. I am not sure how it is done on other types of engines. Aviator168, I've been thinking about what you wrote... Why d...
- Mon Dec 26, 2016 10:49 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Curious about the Willstead model engine (vs Bohm vs others)
- Replies: 6
- Views: 6433
Re: Curious about the Willstead model engine (vs Bohm vs others)
Ian, I wish I had a lathe!
Is there a water jacketed model out there?
Is there a water jacketed model out there?
- Fri Dec 23, 2016 11:19 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: what cycle does this engine use?
- Replies: 21
- Views: 24679
Re: what cycle does this engine use?
Looking at Blade's designs, it's more than just a Manson engine with a gamma or beta layout.
3 years later, how did the prototypes function?
3 years later, how did the prototypes function?
- Fri Dec 23, 2016 11:02 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Manson engine
- Replies: 7
- Views: 14802
Re: Manson engine
I've been thinking a lot about Manson engines. The Rupp improvement is pretty ingenious. From what I read, the Manson engine as designed has about 40% less power than the stirling engine. But keep in mind that the Manson engine does not have a displacer. If one would incorporate a displacer, would t...
- Wed Dec 21, 2016 9:26 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Thermal lag plans
- Replies: 7
- Views: 7806
Re: Thermal lag plans
If I understand the pictures directly from your design, the inner tube point is aimed towards the piston. This would force the air to go along the outside and then into the expansion chamber as you mentioned. So in effect that would double the length of the tube? Because if I understand simpler ther...
- Wed Dec 21, 2016 9:17 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
Oops I meant Manson Rupp not Ross.
- Wed Dec 21, 2016 9:16 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
- Wed Dec 21, 2016 9:12 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Snifting valve
- Replies: 30
- Views: 17902
Re: Snifting valve
Aviator: "All you have to do is create a small air passage way inside the cold cylinder wall between the top of the piston and the skirt of piston when it is at half stroke." Does something like that apply to beta and gamma engines? Manson engine also perfected as the Manson Ross have a gr...
- Mon Dec 19, 2016 10:48 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Thermal lag plans
- Replies: 7
- Views: 7806
Re: Thermal lag plans
Derwood,
I saw your engine on youtube. Looks cool!
Looking at your plans, why the need for the inner tube?
I guess, I do not understand the theory of it.
Does it act as a choke??
I saw your engine on youtube. Looks cool!
Looking at your plans, why the need for the inner tube?
I guess, I do not understand the theory of it.
Does it act as a choke??
- Mon Dec 19, 2016 10:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: What is the difference between thermal lag and lamina flow engines
- Replies: 36
- Views: 27900
- Mon Dec 19, 2016 10:33 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: What is the difference between thermal lag and lamina flow engines
- Replies: 36
- Views: 27900
Re: What is the difference between thermal lag and lamina flow engines
I have an old 0.35 McCoy airplane engine, I was thinking of converting to a thermal lag engine. It still has compression, so I assume the piston would do the trick. Approx ~16mm bore and stroke there abouts.
What would it take to convert that?
What would it take to convert that?