6 Cylinder Engine with Only 5 Moving Parts

Here's an "Elbow Engine" that I made very loosely based on the plan
in the July 1965 issue of Popular Mechanics and on Julius de Waal's plan that I found on a model engineering website.

It is very simple but has to be machined very precisely.

It's made out of brass, stainless steel, aluminium and delrin.

[deluth]

This channel is criminally under subbed.

[steamchick]

Wow! (I have seen this at many shows, it shows an accomplished machinist and model maker to get all the alignment perfect for a smooth running model! You got the job!😃)

[joecnc]

Very nice job of machining and great video, too! Making one of these is on my list. It would be interesting to meter the rpm.

[skywatcher]

Came to this video with doubts, left as a subscriber. I have never seen such a configuration before. Very nice man👍

[AllAroundmedia]

5 stars, i'm been a cnc & manual lathe machinist for 2 decades, that's a nice creation, Cheers to round parts.. 🍺🍷

[bigbadjohn]

Ah so it is on the right channel. Brilliant. Just found your channel and am binge watching!

[Anvilshock]

Wow! Also, quite unorthodox and captivating!

[MazeFrame]

Now take 4 of these and make it into an "engine square"

[componenx]

I built one of these about 6 years ago (no teflon, no springs). So close to running but never did. I suspect one or more of the three "pistons" is not a dead flat bend. Time to give it another shot. Also thinking of running the upper rotor on a shaft that goes through the upright block instead of the bolt. That way it can actually be used to power something.

[ed]

That’s a precision thing of beauty . Great channel . Subbed

[daveg]

Had to say, that's pretty neat. Thank you for sharing.

[pauljs]

Can find something very similar in air powered tools and hydraulic systems. Look up "axial piston motor". Some also have an adjustable offset with a tilt block so you can even change speed or reverse them. There's also some pretty big ones on ships, when you look at the hydraulic systems for steering or anchor windlasses.

[tinymonster]

Its the sort of utterly strange thing that wouldn’t be a surprise inside a WW2 torpedo. But then of course, I imagine it would have one of those 1920s Admiralty Torpedo Shed names such as “Bramley/McFadden Rundown Counter Drive, Non-Magnetic, Steam, Reciprocating, Mk9a”.

[DB-thats-me]

They used for transmitting torque through a set angle without any change to angular velocities. ie set angle CV joint. Although the load must be light, they are very quiet. Way quieter than straight cut spur gears. The only mention I had found for them was in medical equipment.

[billbaggins]

"WOW" works very well, also got you a new sub👍

[lqr]

See, only 5 parts! <proceeds to add 11 more parts>

[xofunkox]

a really "crazy machine"...Cool!

[pepelefrog]

This is called a Rotary Vee, Patented by Bricklin Engines of Oklahoma. 40+ year old technology.

[kreynolds]

Wonder if that can be adapted to an external heat engine.

No gases escape. Either side. Take a torch to the tube under compression. As it expands it forces a rotation and takes it out of the flame to cool and contract bring it around back to the start.

[CreaseysWorkshop]

I would love to see how you made the pistons.