Calling all Stirling Engine enthusiasts

I am trying to trace information on a model of a Rider based engine shown/described in ME during the late 1980's, early 1990's. The engine featured an inlet valve on the cold cylinder that allowed a fresh charge of air during each cycle. The cold cylinder compressed the incoming air while transferring it to the hot cylinder.

The hot cylinder followed normal Rider practice with the displacer above the piston. It differed in that, at, or around bottom dead centre, there were ports in the cylinder wall, (I think), to allow the hot gases to escape.

I have been unable to trace this myself as I cannot recall the article title, if it was an article. Or it may just have been a photograph from an exhibition. A lead to the article, a copy of the article, or a drawing of the engine would be much appreciated.

Regards

Gray,

Gray - one from Professor Senft, maybe?

rgds

Bill

Hi Bill,

I have all Professor Senft's designs but the one I am looking for is not amongst them.

The problem is without the articles title, or engines constructor, it is impossible to do any meaningful search. I was hoping to jog someones memory.

Thanks for taking time out to reply,

Regards

Gray,

In 17 July 1981 ME 3661,(and 3663, 3665) and a letter in 3668 by Andy Ross 'of USA' described a 35cc Rider Stirling Engine, could that be it? Looks the most likely.

Neil

 Also: stirlingengineforum.com/viewtopic.php?t=1904

Edited By Neil Wyatt on 04/12/2019 20:52:20

Hi Neil,

Unfortunately this is not the one either, again I have all of Andy's Designs.

The engine in question had the cold cylinder horizontal and to the left. The hot cylinder being vertical with a pipe connecting the two. There was some kind of valve gear to operate the inlet valve, (I think). That's one of the problems with getting older, the brain is not so good.

Regards

Gray,

Hi Graham,

what You describe appears like an ericsson-type-

machine to me.never seen one in reality.would make an interesting project

hubertus

Hi Hubertus,

While the engine I have in mind is not an Ericsson, it does share some of the Ericsson cycle. Having revisited the Ericsson Caloric Engine, I may well be able to incorporate this engine design to suit my needs.

Thanks for jogging my memory,

Regards

Gray,

Mystery over, to quote from Mr Blue Skies, John Slater has come up with the engine in question, it was ERGO 2 a 19cc V2 Marine Engine

It was by R S Robbins and appeared in ME Vol 147 issues 3658 & 3660. Although I think my memory has embellished what I thought I remembered about the engine.

Many thanks to John,

Regards

Gray,