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Hot Tube Ignition

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Roger B:
Thank you all  :ThumbsUp:

Graham, what I am looking at is vaporising the paraffin externally like in a tractor running TVO and then igniting with a hot tube.

Is the Robinson injecting into the cylinder and using the hot cylinder for vaporising as in a hot bulb engine?

Yes, oil engines smell unless you can get really good vaporisation/atomisation of the fuel.

Alyn Foundry:

--- Quote from: Roger B on December 30, 2024, 07:39:31 AM ---Thank you all  :ThumbsUp:

Graham, what I am looking at is vaporising the paraffin externally like in a tractor running TVO and then igniting with a hot tube.

Is the Robinson injecting into the cylinder and using the hot cylinder for vaporising as in a hot bulb engine?

Yes, oil engines smell unless you can get really good vaporisation/atomisation of the fuel.

--- End quote ---

Hi Roger.

The Robinson is very, very basic. The fuel is gravity fed and  metered by a needle valve above the atmospheric inlet. However Horace incorporated a rather clever double headed valve where the fuel would be atomised due to it rattling as the air was passing through to the cylinder. This valve was situated directly above where the permanent lamp was heating the heavy, wedge shaped cylinder head.  This enabled the atomised fuel to be vaporised before admission.

I have attached a couple of pictures of the patent and the cylinder heads. The engine had definitely worked hard for its living as there were two burned out cylinder heads found with its remains.

 :cheers:  Graham.

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