Stirlingengineforum.com

I made another displacer tube it has .020 overall clearence on the sides and .040 clearence on each end...... If you reconnect the power piston and heat the displacer and move the displacer the power piston will move slightly does sound right? When you run either the power piston or the displacer b...

Doesn't involve touch. Requires observation of the OP's video. Sorry for your shortfall, big sale on eye wear at "Vision World". Be sure to take the coupon with you. If you need help in finding the video..........I'll paint it gray and put tusks on it.

I would say, "it is connected to top of cylinder". ...Don't u actually watch these videos?

Thats the way I do it on the lathe but use a hand held diamond file to cut thru.

I sent Indianola a private note on it in YouTube and no response yet.

Aviator168 wrote:Just enlighten me. Can you tell me if this an alpha and if the hot piston delivers power?

Asked, answered, doesn't care to know.

Textbook savy would allow you to know what to look for in the various Stirling types. Plenty of descriptions of Stirling type on the web. And Alpha is specificly defined. This 15 CC "Alpha" is "not" by definition but is a "GAMMA" by definition. This engine has a displac...

......Hot cylinder never delivers power. That is not Stirling principle. Since an Alpha has two sealed pistons moving air between cylinders and the air transfer tubes have to be located above the piston crown, how do you reconcile the location of the air tube below or to the side of the piston skirt...

......well then "stand back" and take a look! Doesn't the location of the air tube in the hot cyl tell you something? Tell me what changed your mind!

I've read your comments and you didn't even believe it!... :idea: ...Look again and then read some more comments in the video. Its a displacer. The clue is the location of the air line in hot cylinder and a glass test tube piston in a glass syringe on hot side just doesn't work except as a displacer...

Take a look at this one. http://www.youtube.com/watch?v=ZXSoz9JToUs&feature=related He's got smaller diameter of the connecting pipe and the pipe is longer as well. Yet he managed to get it up to 1500 rpm. .......He also is running a "Gamma" engine here. Chris-74 your Alpha is a well ...

I find your Arrogance appalling.... In the 1980's Merrick Lockwood was the leader of a team that built a five hp. (3.7 kW) Stirling engine fueled by farm garbage (in this case the garbage was rice husks). After a huge amount of work they finally got the engine running well. http://www.stirlingengin...

Longboy, you use the term "equalibrium". That is a very good explaination of the system. When the air is cooled the whole system experiences a low pressure equalibrium almost instantaneously. When it is heated a high pressure equalibrium is achieved almost instantaneously. This is the bas...

Erm... I did, and my engine runs fine. The venerable walking beam engine has the power cylinder mid-way between the hot and cold ends. No! Your power/cold cylinder is mounted midway up the "hot cylinder". I do see that you mean that the hot cyl has one end heated and the top of it water c...

Actually, if we assume that all the air inside the engine is at the same pressure at any given point in time, the power cylinder can be wherever you want (assuming its size and contribution to air temperature is small compared to the hot and cold parts). I've deliberately drawn the power piston sma...