Author Topic: Simpson & Shipton  (Read 1285 times)

Offline flopearedmule

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Simpson & Shipton
« on: July 03, 2023, 03:31:41 AM »
Hi all!
I've been working on Stew's design of the Simpson & Shipton on and off for a few months now.   Today, I slapped it together to see if it would run.
What do you know, second adjustment with the cam and it took off!  I need to fine tune the timing a bit, but I have to take it apart and paint, make it look a bit better.
 
Here are a few pictures, and a link to a video of the first run!
Thanks

For some reason the picture preview's are sideways, when I click on them they are upright.

https://rumble.com/v2xrnh0-july-2-2023.html

https://rumble.com/v347qs8-simpson-and-shipton.html
« Last Edit: August 03, 2023, 01:07:23 AM by flopearedmule »

Offline Chipswitheverything

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Re: Simpson & Shipton
« Reply #1 on: July 03, 2023, 08:23:26 AM »
Thanks for posting the photos, it's an impressive and unusual engine, and there is plenty to watch in action as it runs! A nice project. Dave

Offline Admiral_dk

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Re: Simpson & Shipton
« Reply #2 on: July 03, 2023, 09:42:59 AM »
Now there is a build to be happy about, as it is not the easiest to build or getting to run good  :praise2:

Per      :cheers:

Offline SteamR

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Re: Simpson & Shipton
« Reply #3 on: July 03, 2023, 12:47:53 PM »
A beautiful built and smooth operation.
Congratulation.

How about the air consumption for operation? I have a similar one which needs a lot of air volume because of the large cylinder volume.

Richard

Offline BillTodd

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Re: Simpson & Shipton
« Reply #4 on: July 03, 2023, 03:36:10 PM »
That runs really well. 

The Simpson snd Shipton was one of the first engines I animated for Doug


http://www.douglas-self.com/MUSEUM/POWER/rotaryengines/rotaryeng3.htm#simp
« Last Edit: July 03, 2023, 03:39:48 PM by BillTodd »

Offline flopearedmule

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Re: Simpson & Shipton
« Reply #5 on: July 03, 2023, 09:31:33 PM »
Thanks guys!
Richard, it doesn't seem to take a lot of air.  I had the air nozzle throttled way down and it seemed good.  When I get it back together, I'll hook a pressure guage up to it and see how much pressure it takes.
I used a carbon rod for the piston, I'll see if it will last.  If It don't last, I'll make it out of delrin.

Bill, thanks for that link.  I never saw that before.  That's a good one to show people how it works.  I had to look at the prints for awhile to figure it out for myself.

Stew (Potty Engineering) emailed me his original plans, and it was a very straight forward build.  I had a 3d assembly print from Julius I looked at now and then.


Offline JULIUS

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Re: Simpson & Shipton
« Reply #6 on: July 03, 2023, 10:02:23 PM »
I see that you have used my drawings.
Thank you

Julius

Offline flopearedmule

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Re: Simpson & Shipton
« Reply #7 on: August 02, 2023, 11:46:22 PM »
I see that you have used my drawings.
Thank you

Julius


Thanks Julius!  It was nice having a 3d picture to look at. 
I used both yours and Stew's.   

Offline flopearedmule

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Re: Simpson & Shipton
« Reply #8 on: August 02, 2023, 11:49:42 PM »
I have a few more pictures to post, then I need to get a picture of the completed engine running.  I'm going to work on that tonight. Thanks

Offline flopearedmule

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Re: Simpson & Shipton
« Reply #9 on: August 02, 2023, 11:53:20 PM »
If anyone builds this engine, see my picture.  I made the cylinder bore a bit smaller because the finish was really good and I didn't want to go bigger and take a chance making it worse.  As you can see in this picture, it should have  been a bit bigger to cover the small openings. 
It doesn't seem to affect how it runs.  This engine was very easy to get running and I can blow in the hose with my mouth, and it will run.  Very smooth!
How much pressure  can an average person blow with his own mouth??



Offline flopearedmule

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Re: Simpson & Shipton
« Reply #10 on: August 03, 2023, 01:06:37 AM »
Here is the first video of completed engine!   Many thanks to Stewart Hart (Potty Engineering) for sharing his design!  :cheers:
Thanks for watching everyone! 


https://rumble.com/v347qs8-simpson-and-shipton.html
« Last Edit: August 03, 2023, 02:41:48 PM by flopearedmule »

Offline crueby

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Re: Simpson & Shipton
« Reply #11 on: August 03, 2023, 01:33:06 AM »
That is awesome!   Runs and sounds  wonderful. The motion is mesmerizing.  Super job!

Offline BillTodd

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Re: Simpson & Shipton
« Reply #12 on: August 03, 2023, 07:22:56 AM »
That's really nice  :NotWorthy:

Offline Admiral_dk

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Re: Simpson & Shipton
« Reply #13 on: August 03, 2023, 09:22:14 AM »
Great and smooth Runner + looks good too  :praise2:

Per      :cheers:

 

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