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Scale Model Engineering

Steam engine half breed


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  #1  
Old 01-17-2017, 12:44:35 AM
Randy L Peterson Randy L Peterson is offline
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Default Steam engine half breed

Just curious if anybody has made a scale model steam engine and made a 2 stroke or 4 stroke. Cylinder and made it run like a half breed.
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Randy L Peterson
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Old 01-17-2017, 01:20:21 PM
Kirk Taylor Kirk Taylor is offline
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Default Re: Steam engine half breed

Quote:
Originally Posted by Randy L Peterson View Post
Just curious if anybody has made a scale model steam engine and made a 2 stroke or 4 stroke. Cylinder and made it run like a half breed.
Thanks
Randy L Peterson
Randy,
That's an idea I've been pondering as of late especially since the Bessemer models are no longer available. This Innis conversion,
https://www.smokstak.com/forum/showthread.php?t=165352
would make a really neat model.

Kirk
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Old 01-17-2017, 01:20:33 PM
Andrew Mackey Andrew Mackey is offline
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Default Re: Steam engine half breed

Burns & Horner made a Bessemer 2 stroke model - not a conversion. I have been looking for one for years. If you were to build a conversion from a steam engine, the biggest issue would be the flywheels - they would have to be heavy enough to carry the engine over the compression stroke. if you look at the full size OIL City - South Penn conversion engines, you will see that SP added a heavy flywheel for that purpose - the steam flywheel is way too light to do the job on its own.
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Old 01-17-2017, 01:36:45 PM
Randy L Peterson Randy L Peterson is offline
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Default Re: Steam engine half breed

Model I have is an old Stuart #9 kit. Has a big flywheel piston Bore size is 1 1/2
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Old 01-17-2017, 02:12:46 PM
Ronald E. McClellan Ronald E. McClellan is offline
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Default Re: Steam engine half breed

If I'm reading this right , you want to make a two stroke steam engine. That is nothing new , It is called single acting. A four stroke steam engine can be done but makes no sense because it would only have power every two revolutions. Most steam engines have power two times in one revolution. Ron
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Old 01-17-2017, 02:40:27 PM
Randy L Peterson Randy L Peterson is offline
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Default Re: Steam engine half breed

I want to make an internal combustion cylinder for it. Convert it from steam to a gas engine like some of the old oil field engines. And have the Steam cylinder if I want to bolt that on and run it as a steam engine as well.
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