4 Cylinder Live Steam Oscillating Engine for Model Boat Running on Steam

This is a demonstration of a 4 cylinder Oscillating engine running on Steam pressure of 35/40 psi.
It was constructed to my own design in my home workshop using a 3 1/2 inch lathe and a vertical milling attachment.
It has a bore of 1\2" and a stroke of 12 mm ( similar to the Cheddar Puffin ). The power ouput should be twice the Puffin as I am running 4 Cylinders. The Cylinders are timed at 90 Degrees apart ( 90 * 4 = 360 ) producing a very smooth rotation and exceptionally slow speed running with high torque.
It has been designed so that there is no external pipework or siversoldering,all steam galleries are drilled and then blanked within the main block, The blanks are stainless steel screws and are removable to allow cleaning when required.
Main bearings are 5 mm ballrace, Oscillating bearings are 3 mm ballrace, all screws are stainless and shafts are silver steel. Driven and output shafts are 5 mm dia. Piston rings are Vitron 1/2" dia. It is complete with a Displacement Lubricator.
I sell these engines on EBAY as and when I complete them.
I am currently designing / building a 2 cylinder version using the same dimensions. On completion I will be posting a demonstration video.
Any questions then contact me thru' the YOUTUBE system or by my email jerry.irwin@homecall.co.uk

Category:

Science & Technology

Tags:

• Oscillating
• Marine
• Model
• Boat
• Engine
• Live
• Steam
• four
• Cylinder
• Radio
• Control

[ExtraSilver]

hi i like your oil tank thingy sorry dont know the name but i just wanted to know how the oiler works as im makeing a 4 cylinder engine and i would like to build one of them in-line steam oilers in the build what would be nice

thanks

[JERRYIRWIN41]

It's called a displacement lubricator.lots of info on google

[JERRYIRWIN41]

Pressure a bit high and yes requires a nip

[presziggy]

that's very cool! could you think of a way that it is usefull/pertanent in today's modern practical world? is it efficient to create electricty with, or efficient for power as it is?... again very nice...enginuity :)

[MrNotch9]

are they double-acting or single-acting

[togaida]

That's a very nice piece f machinery! I admire the craftsmanship. I'm trying to break into live steam models, I've joined such groups as Elmer's on yahoo and John-Tom but I have to say I don't think I've seen an engine like yours, is there somehow I might obtain plans for this steam engine?

[evilamish]

That would give my boat some balls

[MyFaceHole]

1:58 - 2:10 ejaculation!

[steamcylinder]

Excellent piece of work.

Is there a spring between each cylinder and the 'retaining bars' and how is the crankshaft driven?

[gorduche69]

wahoo!!!!!!!!!!!!!!!!!!!!!!!!!­!!!

[steveo928]

nice job that looks nice