"It will never work!" Said the person who never tried anything. #engineering #inline4 #engine

Work? Yes, technically.
Have MASSIVE drawbacks? ABSOLUTELY
the lower bar would need strengthening (more weight)
The contact point of the crank in that slot would cause tremendous wear, or require a secondary carrier between the yoke and the crank pin (more weight)
The whole thing will want to twist when the crank is at 90°, STILL putting massive load on the piston and cylinder walls, worse than the conventional setup.

The best approach is what the big marine diesels do: a 2 piece connecting rod that eliminates side loading on the piston, the crosshead has good lateral support, and the crank journal has good support in all directions. Too bad it's so tall the only place it's practical is in massive cargo ships.

You can make a render of a engine powered by farts, that doesn’t magically make it possible irl

Red lines at 500 rpm

the yolk

I actually have tried it in a vacuum pump.
It was a project at work with a budget and mechanical engineers and everything.


IT WAS SHIT.
NEVER DO THIS.

Seems like theyd wear down alot faster though

I like the vane type rotary engine idea better.

It will work well in CAD, but how to stop the bottom of the unsupported square connecting rod end breaking off at high rpm 🤔

I’m surprised a motorcycle company hasn’t tried this yet. Honda’s done v5s and oval pistons, this doesn’t seem to far fetched for them to do😂

Go electric, problem solved .😂

Cool, do it real life and see what happens.
Btw. what stabilizes the pistons at their lowest point? As an animation, a wonderful job, but real life physics works differently, than computer calculated physics.
Just too many factors are playing together in real life, factors a computer program won´t take into consideration or factors, that even we aren´t aware of.
Still, keep it up, life is a learning process!

The forces on the direct up and down movement when the engine fires seems like it might warp the rectangle that the crank sits in.

similar engine was in a book i had as a kid "suppressed inventions and how they work", from the '60s or '70s.....had the 300mpg carb as well. "bourke engine" IIRC

And now the elephant in the room - how to lubricate it?

If you're a petrol head and you want to build yourself a very powerful, super smooth engine, forget your inline four. Easy 500+ HP, simple, reliable, cheap to build and very well balanced, the GM LS V8, say no more.

I just wanted to say. Ur great and make amazingly detailed videos and such. Whenever I comment on a video of yours it's never out of a place of malace. It's more like when me and my buddy have been doing reserch on something and compair notes. Because on some things I do a ton of reading aswell (Combustion chamber design particularly and promotion of turbulence in it)

The scotch yoke is older than ICEs and has already been tried

I have a feeling there's a reason this is not in use. Could there possibly be any drawbacks?😅

Nice idea theoretically. One thing about engineers. Pie in the sky but practically not gonna happen. Love to see those bearings and 2 of those would have to be offset a few degrees to keep the rotational forces from accidentally rotating the other way killing whatever balance achieved. Build that engine still...I can admit being wrong.

Work for how long?

Boxer is better

The side load on the piston skirts would be absolutly tremendous, probably most likely catastrophic.
I'd also like to see the details of exactly how that rod bearing would work.
The only benefit I can see is the piston would spend the same amount of time at BDC as it would at TDC.
But is that going to make a big difference at 6k RPM? Only a proper test would show for sure.

Those parts will soon wear out and knock like.... ask your self why has this not been done before by 100s of car companies

I like this

I like this

Contact pressure between the rod and crank will be orders of magnitude higher due to the line contact compared to cylindrical contact. Seems very difficult to lubricate and I expect it to wear rapidly. The benefits are achieved with a regular I6, so this just seems like a detour.

I love the engineering part of this channel, but I have also seen the demise of car company SAAB. Lovely engineering is only lovely if it works. SAAB cars were not as lovely as certain perspectives of their engineering.

Rods look a little precarious and undesized

I think that those races on crankshaft and rods won't last very long. Not even saying about the amount of play there

Way too much reciprocating mass added with the Scotch Yoke setup. Balance shafts do wonders with no added reciprocating mass. Anything can be balanced "good enough" with shafts.

To that point, I ride a 693cc single cylinder KTM 690 "thumper" motorcycle with twin balance shafts. It makes a peak of just over 70 horsepower at 8,000 RPM with a 9K rev limiter. Up to about 6K RPM it has very little vibration at all. After 6K it does buzz, but not bad, and by then I'm going 90 MPH.

Cool idea but counterbalancers make this a non issue. Either way you still add weight and complexity. In adition to that this design looks to me like the linear bearings required would wear quickly relative to generic roller bearings we normally see.

I was wondering if you could mabey make a Video about the 6-Stroke engine becaus i think it could be quite interesting.
(Sorry for my english)

What about friction?

porsche 6 stroke!????

no one cares if it works, only if it can sell

Then why it wasn't adopted as a default? I think there's a reason for that. Engineers have been around engines long times to be wrong about it

Maybe u should do a time lapse on how many times u have mentioned primary and secondary balance .

Maybe u should do a time lapse on how many times u have mentioned primary and secondary balance .

What game ?

I don’t know a whole lot about cars but I know that’s dumb. The way the metal grinds where the camshaft meets the piston base is a great way to wear them out really fast

Mejor solución: pon tacos de goma

I like the idea, but about the connecting rods : is the "rectangular part" of it gonna be strong enough to handle the heat and power? The "walls" (or whatever we can call it in this case) look really thin. This would open up in the long run due to the heat and speed. With all the consequences... Don't shoot me, i am not an engineer or a mechanic. I just try to think logically.

The second one produces a lot more friction if I’m not wrong. I feel like it would wear faster and not be as suitable for high rpms, maybe outputting less power too

They look like they legit about to blow up in the engine. 😂🤣😂🤣

harmonic dampener

i love your videos. keep going

I learned that the only Balanced setup going to the Secondary's would be 6 or 12 Cylinders where it really counts.

Yeah that doesn’t seem very effective.

Where the heck would the required oil pressure come from to lubricate the big-end bearings? It could NOT work with plain bearings and if you used ball, or roller, bearings there would be too much free play, too much noise and they could not withstand the physical stress and loading of a high performance engine. This design would never work.

The first one is accurate and fast
But the 2nd one is For YOUR FUCKING TRACTOR😭😭😭😭

Or just use an inline-six