The "None Compression Engine". I need info.

[kode1303]

Ralph,
The only experience I have with IC engines is from fiddling with lawnmower engines and so on. And as a science teacher I know the theory, but until now I've stayed away from trying to make one because the work has to be so accurate in order to get proper compression and working valves etc.
However, the non compression engine is quite simple - I guess the simplest IC engine there is, and I think I might be able to make one. Time will tell.
Right now engine building is a rather silly hobby for me to start with as I have three year-old twins and another girl arriving any time now ... so it might be a while before I can produce a working engine. So far I find it interesting to learn more and great to get advice from skilled and knowledgeable folks here in my latest favorite forum.
If you get startet on a Non Compression Engine, I'd like very much to know about it and see it running

 

[flyingtractors1]

Well, I'm going to proceed with a plan of my own borrowing from all the examples I've seen and the good advise received. I have a good understanding of how an engine works. Now all that's needed is to gather materials, cut them to fit and put them together. Still sounds like square 1, but square 2 is not too far down the road. I have'nt figured out the ignition system and not sure about the valving nor the fuel system. Other than that, I'm ready to go - except for the crankshaft and bearings and rings for the piston and a few other things, plus things I haven't thought of yet. I'd appreciate any thoughts on the matter.

 

[len1042]

Hi Gail.
do you know the name and another info for either the plans or castings for the otto langen engine.
Thanks, Len

The earliest internal combustion engines were non compression.
Here are links to the videos of Otto Langen early engines and a link to a description.

http://www.youtube.com/watch?v=85HkJCqjbrA
http://www.youtube.com/watch?v=Zs56Cii3kdg


http://sites.google.com/site/wgrenning/home

They were atmospheric engines in that the power stroke was when the hot gases cooled they created a partial vacuum in the cylinder and atmospheric pressure provided the power stroke.

A number of models of these engines have been built and at least one casting kit produced. They are great to watch run at model engineering shows.
Gail in NM

 

[metal89]

Hi,
here are some documentation I gathered on non compression Lenoir engine and Hopkins engine.
Patrick

View attachment Moteur Lenoir.zip

 

[GailInNM]

Len,
Sorry I don't have any helpful information on plans or castings.
PatricK,
Thanks for jumping in with your information.

Gail in NM