Three Cylinder Steam Radial

[Stewart HartParticipant @stewarthart90345]

Three Cylinder Radial Made from bar stock

[Stewart HartParticipant @stewarthart90345]

Just completed this Three cylinder radial derived from the Cygnet Royal, and Elmers Radial engine, with additional design changes.

 

Her’s a video of it running

 

[IMG]http://i431.photobucket.com/albums/qq32/sbwhart/Rotary%203%20cylinder%20steam%20engine/IMG_2029.jpg[/IMG]

 

http://www.youtube.com/watch?v=lNPtbzcx89w

 

Enjoy

 

Stew

[DoddyParticipant @doddy]

Lovely – Enjoyed the vid and the photos

[Stewart HartParticipant @stewarthart90345]

Hi David

 

Thanks for your kind comments, it was a real enjoyable engine to build, if you look on the madmodder.net forum you can follow the build log, just do a search for three cylinder radial and you’ll find it.

 

All the best

 

Stew 

[Paul BoscottParticipant @paulboscott25817]

Stewart

 

Watched your video what is the valve system you have used ?

 

Paul

[Stewart HartParticipant @stewarthart90345]

Hi Paul

 

It uses an orbital valve, I tried taking a video of the valve action with the steam chest cover off but couldn’t get the vocus correct. Basicaly what you have is two flats at the end of the crank these engauge with a slot on ta return crank which has an off centre drive pin that drives the orbital valve openening and closeing the valve ports.

 

If you email me on sbwhart@yahoo.co.uk  i’ll post you a sketch of the system.

 

Cheers

 

Stew

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