" Fluidyne 1 " stirling engine

fluidyne ltd stirling engine nr 7.
more info http://stirling.devink.net

LTD engine nr 7

The working of the Stirling LTD (Low Temperature Difference) Ringbom engine.

The engine consists of two big aluminum plates for good thermal conductivity, combined with a cylinder of synthetic material (bad conductivity is necessary to keep the difference in temperatures as high as possible), a displacer made of polystyrene foam and, of course, a connection between the U tube and the displacer.
The large upper aluminum plate is used as a heat plate and the lower plate as a cooling plate.
The engine consists of a U tube with a water column which takes over the function of the power cylinder and the power piston of a normal Stirling engine.

The heat of a 20 W halogen lamp above the heat plate expands the air in the displacer cylinder (closed system) and the water column in the left U tube will rise.
If the pressure is high enough a push against the U tube will activate the Stirling process. By the oscillation in the U tube the displacer will move. If everything is in balance the displacer will shift 90º compared with the water column.

Because the water column oscillates, the engine will oscillate with a fixed frequency as the Ringbom engine has been hung up like the gimbal ring of a compass. (a gimbal ring is a contrivance, usually of rings & pivots, for keeping articles, e.g. a compass, horizontal).

The function of the fly-wheel of a normal Stirling engine is partly taken over by the oscillation of the Ringbom engine.

The engine starts working at a difference of about 20º C between the two plates and will be self-starting if the difference in temperature is about 35º C.

This is possible because a balance spring is used to keep the weight of the displacer as low as possible and to make sure that the displacer is in the middle of the displacer cylinder when the engine is not working.

This is necessary to make the engine self-starting. This LTD Ringbom engine can be viewed as an art object. The combination of the elements water and air and the play of light on brass and aluminum are at the main features.
By using transparent synthetic material the working of the engine is exposed.
That is why I also called this engine 'transparency'.

Category:

Science & Technology

Tags:

• stirling
• ltd
• engine
• kinetic
• art
• heteluchmachine
• ringbom
• motor
• hot
• air
• fluidyne
• liquid
• piston
• modelbouw

[pimpachu]

after further inspection, i realized that there was a light bulb nearby generating the heat to power that engine. N/M

[themightyimp08]

How many watts is the bulb?

How many watts are generated by the machine?

just interested..

[chsxtian]

@01EliteMr no, it's running from the heat caused by the lightbulb above it.

[01EliteMr]

is this perpetual motion??

[HayLotion]

@cow1324able It makes as much power as it uses. It's like powering a fan using a windmill that the fan is blowing.

[cow1324able]

wtf? how dose tht work?

[sconnly86]

possible to use a parabola and sun rays to heat instead of light bulb. would essentially be a solar stirling engine at that point.

[z7abib77z]

I just want u have this idea

you can use sun heating

[12Flyboy12]

Beautiful workmanship! A great demonstration of the Stirling engine!

[olivversc]

I´m interesting in the model and make it at home

[nnnuggets]

@themightyimp08 solar power could be implemented.