CO2 Engine

[putputman]

I must have tunnel vision. As my son & I talked about this project, I forgot about all other possibilities.

Gail, thanks for the reminder.

Within the last month I had ordered Jerry Howell's "miser" low temp stirling engine kit with son extra bearings. (Incidentally, he does not include the acrylic ring anymore). I also purchase the acrylic tube from McMaster Carr. 12' length is the minimum. I have enough for several engines.

Marv, as far as the engine "getting legs" I understand that is a problem with just about anything left open in an office today. Too bad!!!

 

[cobra428]

I found this in my model airplane engine cabinet way, way, way in the back!

Tony

 

[putputman]

Tony, can you explain how it works? Do you charge the cylinder on the right and it goes with the airplane? I have never seen anything like this. How long would it fly?
Are these kits still available?

 

[GailInNM]

Arv,
Here is a web site that has a lot of info on CO2 engines.
http://blacksheepsquadron.com/

I also have a couple of G-MOT CO2 engines here. Used to fly CO2 free flight starting back about 1953.

An EBay search for "CO2 engine" shows about 15 CO2 engines listed at the moment.

Gail in NM,USA

 

[cobra428]

Hi Putputman,
Yes, I use to fly FF CO2 too, but it wasn't till 63. 1953 I was fresh out of the oven The orange thing on the left is the charger. You put a soda cartridge (which you can't get anymore, I don't think). You charge the system by taking the filler (orange thing) and pressing it against the orange fill valve (check valve) at the end of the tube coming from the other cylinder. You would hold the filler so that the nozzle was down and let the liquid into the other cylinder. That's it, your ready to fly Gail you are going to have to help me out on this....30-40sec run time depending on rpm setting? The funny looking wrench on the right was for adjusting the RPM. The nut just behind the prop was the adjustment. That about sums it up.

And Gail you stole my thunder again, I was going to show that site Rof} I knew there was something I liked about you. Your an airplane guy too :bow:

Tony

 

[GailInNM]

An animation of a CO2 engine is at:
http://www.animatedengines.com/co2.shtml

Tony, I never saw a Telco up close so can't make much comment on it. I saw some plans somewhere for a CO2 engine that used an eccentric bearing for the crankshaft so the crankshaft could be moved up and down to vary the timing so I suspect that was how the regulation you were talking about worked. BTW that was done on at least one commercial compression ignition engine to vary the compression ratio for timing as opposed to using a contra piston.

The only CO2 I flew was the OK Cub engine that was larger and used the entire CO2 cartridge for power. I got the G-MOT engines to play with when I was flying micro electric RC, but never got around to doing anything with them.

Gail in NM,USA

 

[cobra428]

Gail, your killing me here. OK Cub holey shirt! I didn't have the CO2, I had a glow .049 for FF/CL. Next your going to talk about a Herkimer, McKoy and then Dynimite, O&R.... Have to stop we are stepping on this thread. We will have to start a side bar of nostalgic antique model A/C motors! Sorry Putputman
Tony

 

[sparhawk817]

i know this is years too late, but for future people finding this thread looking for helpful info, a ball valve would work just fine, check out http://www.animatedengines.com/co2.html for visual help. i'm using it and canned air to power my bike.