Philip Duclos oscillating engine

[gg89220]

hello
4-stroke engine with hit & miss regulation

 

[minh-thanh]

An interesting engine .

 

[vederstein]

That thing looks frightening complex.

 

[Brian Rupnow]

Actually, it is quite simple. I built one a few years ago, and it performs very well. The only issue I had was that the o-ring seal between the bearing stand that doesn't move and the carburetor that does wears out very quickly and then it leaks air and the engine won't idle down very well. Duclos went out of his way to make it appear complex, but it has no more parts than any other simple hit and miss engine.--Brian

 

[Terry C Halladey]

I am building this engine right now. I am about 1/2 done. I will shoot some pics as i proceed.

 

[Sprocket]

I've built that one also. It really isn't that complex. It uses a SHCS for the cam, a little rough, but it works. Intake and exhaust through the same pillar.
I had a little trouble keeping the plug lead on as the plug oscillates with the cylinder. Fun little engine, and mine ran well too!
Doug

 

[gg89220]

hello
machining of new parts

 

[Terry C Halladey]

Wow! After looking at the photos I am almost afraid to post my poor attempt. Just remember when I do that I still an amateur.

 

[Sprocket]

The fins are a really good idea. Mine runs well, but I limit the time it runs because it heats up. The square cylinder body is very thin on the sides.
Doug

 

[gg89220]

hello
the block with the valves and the flow needle

 

[Sprocket]

Interesting valves, but why not.
My wife refers to valves as “those things that look like nails “.

 

[gg89220]

hello
the regulation system, the exhaust cam and the crankshaft .

 

[gg89220]

hello
painting and assembly

 

[Sprocket]

That's a lot prettier than mine!
Looks good! What did the little coil come from? I like the way you stashed it underneath.
Doug

 

[gg89220]

hello
the video

 

[Sprocket]

Runs really well!
I always liked that engine, so much going on and all out where you can see it.
Doug

 

[Brian Rupnow]

Very nice job. The engine runs well, and I can definitely hear the hit and miss functioning.---Brian

 

[jamesmattioli]

[QUOTE = "Sprocket, post: 349608, membro: 49"]
Valvole interessanti, ma perché no.
Mia moglie si riferisce alle valvole come "quelle cose che sembrano chiodi".
[/CITAZIONE]
ciao , ho visto il tuo motore , anche io sono appassionato , ti chiedo se si possono avere i disegni completi per la costruzione . grazie

 

[ShopShoe]

That looks and sounds great.

The design is a little different, but provides lots of interesting actions to watch.

Maybe some day I'll get around to attempting this one.

Thank You for positing.

--ShopShoe

 

[Steamchick]

Tres fantastique!
K2