Engines > From Kits/Castings

Strictly.... Hot Air

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Alyn Foundry:
A kit....

Alyn Foundry:

--- Quote from: b.lindsey on October 26, 2017, 06:51:41 PM ---Nice pictures. Are both of them cast iron? They sure look to be. Very nice!!! As for the thread, are you looking for both stirling as well as atmospheric engines Flame Lickers)?

Bill

--- End quote ---

Hi Bill.

I think my last post showing the ru... em patina tells you they're Iron.  :)

The lower picture is an original 130 year old engine at full scale.

Cheers Graham.

Jasonb:
Graham, looking at the first two photos you posted the only major difference that I can see if teh valve on the end of the model cylinder, linkages look very similar. Are there any other variations that I can't see?

Must admit I like the look of the original engine, not sure if it is the shape or the bare iron that tickles my fancy :thinking:

I would think supporting the core(s) for the water space was quite difficult, the air passage not so bad as it can be supported at either end

Alyn Foundry:

--- Quote from: Jasonb on October 26, 2017, 07:11:55 PM ---Graham, looking at the first two photos you posted the only major difference that I can see if teh valve on the end of the model cylinder, linkages look very similar. Are there any other variations that I can't see?

Must admit I like the look of the original engine, not sure if it is the shape or the bare iron that tickles my fancy :thinking:

I would think supporting the core(s) for the water space was quite difficult, the air passage not so bad as it can be supported at either end

--- End quote ---

Hi Jason.

Indeed, the simplicity of the air cooled engine is amazing.... I too like the unpainted theme.

The valve in the later design was a governor, a simple disc in the air tract that was held open by a light spring. As the air passed more rapidly the disc would be drawn forward against a step and close the power cylinder completely.... Not a good idea, so a couple of small holes were used in the disc to diminish the dead stop condition.

The water jacket core was a nightmare !!  Supported by " Chaplets " they used to " Blow " regularly to start with, but a newer resin bonded sand was used and we produced well over 200 kits.

Pictures are great, video even better !!   ;)


Cheers Graham.

Ian S C:
one of our machinery club guys brought a Robinson over from Australia about three years ago, quite an impressive motor.
Ian S C
           

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