Search found 99 matches
- Sat Jun 21, 2008 8:56 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: I've started building my walking beam 55 gallon drum
- Replies: 25
- Views: 24567
Agent86, I'm no expert either and have just two working models under my belt. From what I have read, the mesh is usually steel wool and some times Scotch Brite pads but these are being used in models not large engines (to my limited knowledge) Maybe a suitable regenerator/displacer for you engine co...
- Fri Jun 20, 2008 12:24 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: I've started building my walking beam 55 gallon drum
- Replies: 25
- Views: 24567
Not a bad idea at all but it will need to increase the power a fair amount to offset the extra energy required to run it. The weight and friction of plumbing fittings etc. I know your taking about a pretty large scale engine here and maybe it's less of a factor but it will add extra effort to your d...
- Tue Apr 15, 2008 7:03 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Double Action Stirling
- Replies: 6
- Views: 9219
- Fri Apr 04, 2008 12:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Stirling Engine Gamma LTD
- Replies: 9
- Views: 9644
Gamma123, 1. Ten to one is approximate, anything close to that will work as LTD. The difference will be in the temperature differential required for operation. If the swept volumes are closer in size, you will need more heat. A very large displacer will require a very small differential to run howev...
- Mon Mar 31, 2008 9:44 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: New User/to Fourm/to Building/Lamina Engine Questions
- Replies: 2
- Views: 5167
Welcome to the forum, Finding parts at reasonable cost and high quality is a challenge but I can point you in the right direction for what your looking for. Look here for prefab flywheels; http://www.pmresearchinc.com/store/home.php?cat=34 This place has graphite/glass cylinder sets that you can't b...
- Mon Mar 31, 2008 11:48 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Stirling Engine Gamma LTD
- Replies: 9
- Views: 9644
power piston port hole
Gamma123,
Yes, a hole about one quarter the size of the diameter of the power cylinder. I've seen them done with the cylinder wide open to the displacer but I've read it's better to be smaller, not sure why.
Yes, a hole about one quarter the size of the diameter of the power cylinder. I've seen them done with the cylinder wide open to the displacer but I've read it's better to be smaller, not sure why.
- Sat Mar 29, 2008 10:56 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Stirling Engine Gamma LTD
- Replies: 9
- Views: 9644
Gamma123, 1) seems a tad thick but should work as you have it. Making it thin will help keep the weight down and the energy required to move it. I think that is why most of the very low LTD engines are made that way. 2) the material for rods can be just about anything, light and stiff enough is all ...
- Thu Mar 27, 2008 10:23 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Stirling Engine Gamma LTD
- Replies: 9
- Views: 9644
Your project time line is a bit short to produce a working LTD like or similar to the link you posted. I think you might be better off building a “tin can” Stirling (do a search, lots of free plans out there) One of those would more likely be successful and fit the time limit you mention. However, i...
- Sat Mar 01, 2008 11:07 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Double Action Stirling
- Replies: 6
- Views: 9219
- Sat Feb 16, 2008 7:31 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: new alpha engine idea very different reabsorber
- Replies: 4
- Views: 7628
- Sat Feb 16, 2008 7:11 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Double Action Stirling
- Replies: 6
- Views: 9219
That's an interesting engine but doesn't look very useful? :grin: My design will have two displacers and one power cylinder mounted between them and each end of the power cylinder will be ported to a displacer. The displacers will run opposite hot/cold cycles from each other and that way as one is d...
- Sat Feb 16, 2008 7:02 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: My first LTD Stirling Engine - a few questions
- Replies: 6
- Views: 8464
I am pleased to hear I was of some help and I think your idea to build a new engine with adjustable stroke and timing was good. Both the engines I made had adjustable timing but not stroke. I made timing easier to change on the second one. I also found my second engine performed best with the displa...
- Wed Feb 13, 2008 1:54 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Double Action Stirling
- Replies: 6
- Views: 9219
Double Action Stirling
I know a Stirling is basically a "one stroke" engine to start with but I've been thinking about building a Stirling with two displacer chambers connected to one power piston at each end. My thoughts would be more power but the more I think about it, I'm loosing the atmosphere stroke and me...
- Mon Feb 11, 2008 1:44 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: My first LTD Stirling Engine - a few questions
- Replies: 6
- Views: 8464
- Sat Feb 09, 2008 11:06 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Ideas for the flywheel
- Replies: 1
- Views: 5279
I have not built a walking beam but skateboard wheel bearings work? not sure if you mean the flywheel or the connecting rod but either way, a ball bearing will be the way to go. I have also found that R/C car wheel bearings are great for connecting rods and should only cost about 3.00 at the hobby s...