Author Topic: small pot boiler loco  (Read 2155 times)

Offline mike mott

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small pot boiler loco
« on: June 18, 2015, 10:49:01 PM »
Small pot boiler loco

I have been working on a small oscillating engine for this little loco, and getting to understand a bit better what is involved with making the fittings and motor, there is nothing like doing something simple to understand first principles for me.

here is a little clip of the first run , the boiler was tested to 100psi and the motor is running at about 10 psi. with a spirit burner.


Mike
If you can imagine it you can build it

Offline Jo

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Re: small pot boiler loco
« Reply #1 on: June 19, 2015, 09:32:39 AM »
 8)

Mike I am not sure what you mean when you say "tested", what is the boiler's designed working pressure? (Static test pressure is normally twice this).

What type of safety valves are you using on the boiler?

Jo
Usus est optimum magister

Offline mike mott

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Re: small pot boiler loco
« Reply #2 on: June 19, 2015, 04:06:19 PM »
Jo
The working pressure of the boiler is designed to be less than 50psi The static test of the boiler had no leaks at 100 psi because it is a spring tensioned wobbler and the reversing valve is also spring loaded there is no safety valve on this engine at the moment.

I do intend to put one on as a triple safety measure, however with the running pressure or working pressure being around 20psi. I am really not in very troublesome territory.

mike 
If you can imagine it you can build it

Offline 90LX_Notch

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Re: small pot boiler loco
« Reply #3 on: June 19, 2015, 09:34:17 PM »
That is sweet Mike.  I like it.

-Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos