A completely new piston engine architecture

[tongxuefeng]

 

[LittleInch]

And the benefits are?

 

[Brian Malone]

Interesting rotary cam for valve ops.

 

[GregLocock]

3% power loss in the gears and a decade of work for NVH engineers. What's not to like?

Amazingly it still suffers from second order vibration due to the cranks.

 

[MintJulep]

And double the number of bearings too!

 

[tongxuefeng]

No complicated valve train, compact structure

 

[Lou Scannon]

Build it and see how it works.

 

[GregLocock]

Before you do that, do an FEA on the camdisc.

 

[EdStainless]

Compact size is the only advantage that I can see.
That cam disc looks like a nightmare though

 

[3DDave]

https://www.reddit.com/r/mechanical_gifs/comments/zuyqed/axial_gear_engine_crank_mechanism_i_made_in

 

[gruntguru]

Before you do that, do an FEA on the camdisc.

Would not be hard to make it workable - reduce the diameter of the cam disc or change it from axial to radial lobes.

A gearset between the crank and the flywheel? Aaaargh.

 

[MintJulep]

Maybe a barrel cam.

Maybe sleeve valves or slide valves.

It might be ok ish as a compressor with spring disk valves.

Anyway, backlash in the gears will be a killer.

 

[GregLocock]

Other than torpedoes have any of the swash plate engines found a niche?

 

[3DDave]

Found another

https://www.reddit.com/r/mechanical_gifs/comments/97v06i/axial_engine

 

[tongxuefeng]

Before you do that, do an FEA on the camdisc.

Won't do

 

[GregLocock]

Well, that's up to you. Probably a wise decision, it'd be putting lipstick on a dead pig.

 

[MintJulep]

Other than torpedoes have any of the swash plate engines found a niche?

Well, there's this. https://www.aliexpress.com/item/325...2!120.09!!!!!@!12000038033153328!ppc!!!&gQT=1

 

[CWB1]

Is there a purpose to this thread? A question? Discussion of a new engine that's actually being developed by a competent engineering team?

Or is it simply an attention-seeker sharing a rough doodling, like the millions of AI-generated, amateur vehicle "concept drawings" littering social media?

 

[BrianPetersen]

Thermodynamically, it's exactly the same as an engine of conventional architecture. So, no advantages. The output shaft operates at half crankshaft speed - so, double torque and half speed compared to a conventional engine operating at the same piston cycling rate. Meh; there's easier ways to do that. It separates a single crankshaft into a bunch of separate ones. The valve actuation cam will have a very high surface speed and the rocker arms are pivoting off-axis from the direction that the cam is rotating, which makes the contact interface between them interesting.

Meh.

 

[LionelHutz]

like the millions of AI-generated, amateur vehicle "concept drawings" littering social media?

I'd put money on this being AI generated. AI isn't actually intelligent so it doesn't know how stupid this is.