• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

New Rotary Engine

SagaLore

SagaLore

Elite Member
I have been fascinated with rotary engines since high school, and besides my tweaks to the original wankel design, I'm always looking for news way to accomplish rotary.

I came up with a piston based rotary - approximately 8 or 12 long and narrow pistons, or "pipes". The pipes are hinged onto a disc, and change angle during the stroke within the housing which is positioned about 30 to 45 degrees off the main disc. This "differential" is what converts the combustion stroke into power. I haven't worked out how I'm going to get air/fuel into the chambers, or how to accomplish an otto cycle instead of two-stroke.

Here is my rough sketch:

Pipe Diffusion Engine

It would be nice to have a real 3D animated model of this to see it in action.
 
Interesting.... I suppose it could work, but thats a lot of one-sided weight to the engine, and a lot of vibration. The fuel and spark plugs/wired would be flexed to death, but then of course, the whole thing spins, so wires are out.
 
I don't know if you're being serious or not, but I'l humor you. What exactly will cause the turning of either end? 😕
 
Originally posted by: Ornery
I don't know if you're being serious or not, but I'l humor you. What exactly will cause the turning of either end? 😕
Click to expand...

I see his idea, it the pistons would turn both sections.

It would be tough. If i have time maybe I'll try to draw it in inventor when I get back to school.
 
Originally posted by: Brutuskend
Did you know Wankel never possessed a driver's license in his life.
Click to expand...

Well, there are enough wankers on the road now to make up for it.

Oh wait.
 
Originally posted by: LordMorpheus
I see his idea, it the pistons would turn both sections.

It would be tough. If i have time maybe I'll try to draw it in inventor when I get back to school.
Click to expand...

Cool, thanks! 😀

The disc and rotor would be geared where they almost meet, keeping the turn synchronized on both ends. The rotor (large trapezoidal cone part) would stay at that angle. The engine would have little to none vibration.
 
I'm not seeing how the piston traveling down, would be cause for the assembly to rotate. I can see how the rotating assembly would cause the pistons to travel up and down the cylinders, but not the other way around. It would be like trying to spin a worm gear by turning the driven gear.
 
You have your rotation of the "head" backwards. The way it is now would snap the connectiong rods. The "Head" and output must both turn the same way, unless I am missing something.
 
I'm all for innovation and new ideas, but wasn't one of the advantages of a rotary being it had comparatively fewer moving parts?

🙂
 
Originally posted by: tenchim
I'm all for innovation and new ideas, but wasn't one of the advantages of a rotary being it had comparatively fewer moving parts?

🙂
Click to expand...

AS you said, that's one of them. The major one being the RPM ceiling is higher, since there is little recriprocating mass, all is rotating.
 
All other issues aside, how do you plan to cool this thing?

With no block + cooling system to dissipate heat into those pipes are going to get damn hot.

Viper GTS
 
Originally posted by: Viper GTS
All other issues aside, how do you plan to cool this thing?

With no block + cooling system to dissipate heat into those pipes are going to get damn hot.

Viper GTS
Click to expand...

Ceramic block? That would be most efficient at keeping the heat in the cyl where it should be.
 
Originally posted by: SagaLore
I have been fascinated with rotary engines since high school, and besides my tweaks to the original wankel design, I'm always looking for news way to accomplish rotary.

I came up with a piston based rotary - approximately 8 or 12 long and narrow pistons, or "pipes". The pipes are hinged onto a disc, and change angle during the stroke within the housing which is positioned about 30 to 45 degrees off the main disc. This "differential" is what converts the combustion stroke into power. I haven't worked out how I'm going to get air/fuel into the chambers, or how to accomplish an otto cycle instead of two-stroke.

Here is my rough sketch:

Pipe Diffusion Engine

It would be nice to have a real 3D animated model of this to see it in action.
Click to expand...

make it a 2 stroke turbo diesel
 
Originally posted by: Evadman
Originally posted by: Viper GTS
All other issues aside, how do you plan to cool this thing?

With no block + cooling system to dissipate heat into those pipes are going to get damn hot.

Viper GTS
Click to expand...

Ceramic block? That would be most efficient at keeping the heat in the cyl where it should be.
Click to expand...
Assuming that thermal shock and the high temperature can be handled (they can, but I have no idea how hot a low-conductivity block can get without water cooling), what happens when the valves get too hot? The pistons? At what temperature does the oil break down?
 
ah i get it, the whole thing rotates together at the same rate, but because one ring is at an angle to another you get power just after the top part and exhaust near the bottom

like this

it wouldn't need valves just ports
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top