Theoretical concept of new invented hot air engine.

[airpower]

Once I have access to my tools (sometime in spring) I will physical build it.
It be extremely difficult to tune I expect and will spend more time with calibrating than actually building.
Like a kids swing, when on top give it a little notch

To my knowledge no such engine exist.


Blockchain timestamped
https://bitcoinfiles.org/t/9ef15f84b801 ... 6822790abb

[airpower]

Spend a little more energy and turned it rights way round, simplified it and less of an eyesore to look at.
Maybe 3" diaphragm (bicycle inner tube) 3/4 valve, 10cm (4") pendulum, will see..
Edit: May need a bigger pendulum http://www.calctool.org/CALC/phys/newtonian/pendulum


https://bitcoinfiles.org/t/23600dc77f96 ... c3450687a5

[Tom Booth]

It looks interesting.

I've been having some difficulty picturing in what way the pendulum is connected and the basic operating principle.

To simplify, drawing it as a single cylinder engine, I'm coming up with this:

IMG_20211206_114152295.jpg (133.12 KiB) Viewed 6571 times

Basically, remove flywheel and replace it with a pendulum. Is that about right?

But you have, what would be two engines sharing the same heat source/regenerator, the pendulum is also shared between them.

I'm not sure in what way the magnets would contribute anything.

The regenerator, I don't see functioning as an actual regenerator, more a temporary heat reservoir.

I would assume my simplified engine would work. At least I don't see any reason for it not to.

Can two cylinders share the same regenerator as depicted? I'd have to study and think on it some more.

Looking forward to spring, when you can get it built.

Though obviously different, it reminds me somewhat of another engine, if only because I can't quite figure out exactly how it works.

https://youtu.be/qMKC7AmAk5U

[airpower]

Yes you have possible the simplest form it in your drawing.
Yes the regenerator is better described a heat reservoir.
Yes i see no reason a Stirling engine would not work with a pendulum, just at a slower steadier pace. Flywheel or pendulum both have energie stored for times in need. Grandfathers pendulum clock i have seen his flywheel clock i did not.
Two or more cylinders should be able to use the same heat reservoir, same as one water reservoir can supply more than one water turbine as long as there is water is in the dam.
In the video, two flames is instantly bad news, try as one might, will never be the same heat supplied to both sides. One thing certain running it some time and the room is nice and warm. Two gas burners is a tat more as a 100/200 watt candle or alcohol flame. He is trowing a kw or more at the thing, Cooling on top, ...

I simplified my original design a bit more and moved some to the outside to be able to control the open and closing better. Have some kind of carburetor flap to better adjust the open and closing. Magnet is blob and same time part of generator. Spring time seems so far away.

[airpower]

LTD Stirling engine pendulum powered clock working with 20W (or 10 W halogen lamp)
https://youtu.be/eZHRsgc3F8o
Google translate

Pendulum Clock Low Temperature Difference Stirling Engine Brief Description LTD No.13 "Lower Temperature Stirling Clock" The clock runs on a Stirling LTD engine that drives the pendulum. Use is made here of a halogen lamp of 20 W that is adjusted to a voltage of 8 volts. It is also possible to work with a water tank with water that is kept at approximately 30 degrees Celsius by a 10 W halogen lamp. The water tank here ensures a constant temperature that is necessary to give the Pendulum the same result every time. The clock is reasonably accurate with a deviation of 1 minute every 24 hours. Here too I have tried to make everything as transparent as possible so that you can follow the operation of the machine properly. This clock should be seen as kinetic art with a touch of Victorian style. Year of creation : 2008 LTD 13 Materials : Aluminum , Brass, Plexiglass ,Plastic screws, Scotch Brite and Insulation material (styrofoam) Dimensions : length : 20cm / width : 20cm / height : 65cm / weight : 7 kg

He sure has some amazing hot air engines like this Rotary Displacer Stirling LTD operating at 28 watt lamp (average tea candle is 30-35 watt)
https://youtu.be/HLWh-6Lgoao

or this self starting LTD
https://youtu.be/4sV_0xKX4II

Doing some work with only two tea light candles. This is very simular to my design except it is a "traditionall" stirling with power piston and such and not independent valve controled. His " Paddle-Wheel " piece of art is also very relaxing to look at.
https://youtu.be/X0xHgo7wJv0

Hot air engine paradise, so glad i found his channel
https://youtu.be/eyxbz87J_Mo

Opeining and closing valves independently gives better control and should improve efficiency. Swinging the pendulum only a small angle, a extended 3 leg would to fine to use as pendulum, but power is very limited. I am aiming to do a little more work.

[airpower]

My favorite design as of now.
Removed the cooling fins as not needed, surface area alone is sufficient. Power is generated form pressure release not manipulating the volume.
A simple illustration of a cycle:

Timestamped https://bitcoinfiles.org/t/1ca96e08afd6 ... 661879a50d

So tiny, inner with 2.7mm (0.106 inches) still holding 180kg (400 pound).

[airpower]

Update of the design and back to the original post, of the steam stirling hybrid engine with 3 arms.


https://bitcoinfiles.org/t/373cf33ec03c ... 5f7f281b61

Small amount of energy needed to move horizontally
Pendulum with 1 meter, 100kg, 90° (180°) has 980 Joules (0.27Wh, 0.54 full perid) and with a lenght of 0.7 meter 686 Joules


Next in line, finding a way to harvest.

[Tom Booth]

...

Next in line, finding a way to harvest. (Power?)

My initial thought was, that was what the magnet was for, as a generator, swinging past some coils?

[airpower]

...

Next in line, finding a way to harvest. (Power?)

My initial thought was, that was what the magnet was for, as a generator, swinging past some coils?

Yes but no, magnets is to many issues to deal with. Must be some other way found to prevent "overswing" and frequency amplitude, period variations. Because infrequent large surge of power magnets are unsuitable.
Still lots of loose ends, but like it.
Also some way of valve governing maybe by way of two escape(ment) wheels, when direction reverses it engages.

[airpower]

Integrated water cooling as it can be done easy with this setup and also some other changes added.


https://bitcoinfiles.org/t/e804af34cb66 ... 1043ce5b4d

Air motors last longer, cheaper, saver and run any tool in the shed (or in the house).

[airpower]

That's pretty much it for now. As with every “free build” details to be discovered, decided with the actual build, whenever that will be....
Obviously lots of variations and much better possible.

Timestamp https://bitcoinfiles.org/t/b07477481598 ... ecfebcbab1

I think that will be a good starting piece, unless i find something else in the meantime.

[airpower]

Certainly would like to start trying a few things at this stage but the matter of the fact is I dont know how long it will take before I see all my stuff again in this crazy world. Using piston(s) is maybe to jerky, to start of with it think will at least use a foot long pedulum...

https://bitcoinfiles.org/t/d855a6bc19c4 ... abdb3c802e

[airpower]

For eternity https://bitcoinfiles.org/t/39c2b17957e7 ... 8122340048

Video form about Ten years ago and uses a Angelo Di Pietro air engine. Angelo Di Pietro's claim of 400% better than piston operated air engines may or may not be correct, but i think his problem is that he is to hung up on licensing deals, a shame.
Compressed air operated cars have a reach of over 100 km, certainly enough for city traffic, even moderate countryside is OK-ish with a refill time of a minute or two and anyone can offer re-fulling service. Running out is also not so bad as can carry a little tank.
https://youtu.be/_ZXVH-r684o?t=11

Pendulum vs flywheel is like comparing drag racing to speedway racing. Speedway driver never manages to get going, continuous fighting all kinds of forces, the faster he wants to go the worse it gets. Considerable energy spent for staying on track, the rest for forward motion.
https://youtu.be/AI1HaryKujE?t=50

[airpower]

All done for now, can’t wait to get my hands on some measuring instruments. Changed the upper part to 3° (6° period) same as “grandfather clocks”, but whatever the minimum will be to keep it working. Also the old piston pumps are done with.

Timestamp https://bitcoinfiles.org/t/22bde679a3e6 ... a939702cde


" THE POWER OF ATMOSPHERIC PRESSURE " (only -21 inch of mercury)
https://youtu.be/0N17tEW_WEU?t=122

[airpower]

Well lets blame Santa Claus and his Absente 55°, maybe one or two sips to many.
The crux of the problem the hot air issue at unwanted times.
If no net gain with cooling at any circumstance can be found then a block of ice is handy too. https://youtu.be/WNgoOp8T7RQ
With a LTD Stirling on top the block of ice makes a nice aircon. (Ice-top Stirling)


Volume challenges is also one of many issues why Hydrogen powered cars will never be successful. It is not the easiest of task to get 700 bar (10,000 psi) in a tank. To have a major accident with that amount of flammable gas can be (does not have to be) some serious catastrophe.
Storing liquid hydrogen needs permanent cooling ….
https://www.teesing.com/en/page/news-it ... rogen-cars

Anyway done with the pixel play

https://bitcoinfiles.org/t/034cdabf9fc0 ... 482a96ddd5