" twin water pump station " stirling ltd engine

stirling ltd engine
more info http://stirling.devink.net

LTD engine nr 8 'Twin Water Pump-Station'

This has become a very special LTD engine with a large cooling plate and a heat plate with a diameter of 200 mm.
For a change I made this LTD with two water pumps and a V-tube water column. The configuration of the LTD can work in four different ways.

1. With one water pump
2. With one water pump with the V-tube water column
3. With two water pumps with the V-tube water column
4. With only the V-tube water column

Both water pumps have the same capacity. The V-tube water column is easy to adjust by adding more or less water in the tube.
The displacer of this engine has a very short stroke of about 4 mm. I made this after reading an article by Rudy Mémin. He writes that a film of about 3 mm air around the displacer is sufficient to let the LTD Ringbom run.

As the stroke is so small I preferred to use two small repellent magnets instead of the balance spring. The difference in temperature between the two plates, necessary to run the engine, starts at about 50º C. The engine runs most efficiently when the difference in temperature is approximately 70º C. This is getting close to the limits of the material of the displacer and the displacer cylinder.
Heating is by a halogen lamp of 50 W or a tea-warmer with a heat cap.
For me this has been the most difficult Stirling engine I have ever made, but it runs! (See video clip)
The engine has been made as a demonstration model with the shape of a water tower. The pumping of the water from one reservoir to the other and the flow back to the basic tank can be clearly seen.
I have tried to make everything as transparent as possible so that the working of the engine is clearly visible.
Because you may look upon the whole as a water pump-station I have called this engine 'TWIN WATER PUMP-STATION'.

Category:

Science & Technology

Tags:

• stirling
• ltd
• motor
• station
• water
• twin
• engine
• solar
• free
• piston
• hot
• air
• kinetic
• art
• ringbom
• liquid
• pomp
• pump
• modelbouw
• low
• temperature
• difference

[wormsmaster1994]

url aint working for me :(

i get redirected to a other site..

[Amel6]

dont get it

[DAKOTA56777]

It's in the name it's a water pump, but since he has it in a "loop" with the water being pumped back into the tank none.

[technology49]

Where did you find all of these engines?

[Mrpantymelt]

I want a big one to power my house on sunny days this is great!

[szym86]

Is the water an integral part of the engine ?

[Dms12444]

you truly make the best sterling engines on youtube, music is good too :).

[lanswipe]

very nice, but what actual purpose does it serve?

[SWINGREGORY]

la perfection a un nom : mdevink

je connais le sujet parfaitement et je n'ais jamais vu une telle qualitée de réalisation...

MDEVINK est la référence mondiale des moteurs stirling de démonstration.

Respect

Best regards