The dreams of engineers are often the nightmares of the mechanics who have to service them.

some of these don't follow the "KISS" formula.. (Keep it Simple Stupid), . more moving parts, or requiring very tight tolerances or risk breakage, generally speaking isn't the path to go down. but some look promising

Hey man, love the video! Quick, to the point, informative.

Good content. Thank you. So little filler and healthy scepticism with a chuckle even! :D Love it! +++

I did enjoy the video. The engines shown in the video were definitely strange. I would have liked to have seen more information about the engines. All in all, very informative.

I remember reading about the quasiturbine back in the late 80's in 'Motorcycle news' here in the UK. 30 years later it's still being tried...

very good visualisations - great job, did you model them yourself?

"An engineer's wet dream is a mechanic's nightmare"

I really like it when the thumbnail is in the video nice job

Quasi-turbine, spends $86,000 on machining internals, spends $7.95 on plumbing fittings to pipe it up...

Go over a bump with No 6 Circle Cycle and everything will go with a mighty Bang !. All clever stuff though.

Thank you for including as many videos as you could.

Thanks for the video bud, lmao at the way you laughed at the name liquid piston, took me a minute to get that.

#5 Quasiturbine - This is very similar to a concept put forward in the early 1970s by the Rotarymotive Developments group in New Zealand. RMD was engaged in exploring various rotary concepts, many of them developed from inventions of Mr Hamilton Walker. Most of his patented concepts were based on an oval piston or stator as in this engine. This particular geometry - using a lozenging rhomboid piston - can provide consistent seal engagement between the stator and pistons but that is about all it has going for it. Otherwise it has most of the shortcomings of the common Wankel with high surface to volume, even more complex sealing grid, plus a few extras such as the varying angular velocity of the drive shaft (or the need to add a differential mechanism to take out the hunting of opposite piston pairs) and high mechanical forces at the seals which have to drive the inertia forces as the pistons rock back and forth...........9 out of 10 for complexity

the major benefit of the Liquid Piston engine when it comes to Rotary type engines is that they have managed to get rid of the Apex points, which is a major issue for Rotary Mazda owners. By getting rid of them, they can increase the efficiency and power of the block.

that circle cycle motor had me on the edge of my seat lol

Thank you for this awesome list video with 7 items that doesnt take 27 minutes to watch!

Wow, the cycle engine! I thought several times about a similiar concept with magnets. But I am not an engineer. :p

@Tech Planet Bitt Rotary Engine ukposts.info/have/v-deo/oKFeg4hqh6-CymQ.html

I was previously unaware of your channel’s existence but I’m intrigued as ever. You have earned yourself a subscriber

the second one is really interesting. it has issues though. it'd cost a lot to manufacture and build. alignment of the chamber and piston would present great challenges for companies to be consistent. it however, looks like it'd rev extremely efficiently. especially since it combines the physics of a fly wheel into a crank shaft. but one misalignment of the piston or chamber and the thing will explode. damaging the entire engine, while most issues with normal engines are fairly salvageable.

I really like the concept of Ion engines although we have to find a way to make them more powerful :D

Some interesting design engines out there hopefully I get to see them one day and some of these newer cars

Nice engines but lack of subscribers keep up the good work and maybe days months? You may gain more subs and i'm in😁

3:49 "Yeah, you've got a main seal leak, it will coast you $125,000.00 to fix."

Yup more moving parts has come to mean "oops more to fail" and that in itself does not usually inspire buyer confidence. Opposing piston though sounds really cool.

What particle program did you use to make the particles?

Link to the background sounds? Its nearly impossible to find by search terms?

I've had an idea for a motor for the past 30 years but never did it. After watching this (and kind of expecting to see my motor) I should try to build it.

A number of these have practical potential ! Like you, I would like to see more actual hard data on them before I make up my mind. We are a small engine repair facility, and would love the opportunity to test a few of the smaller engines in real world application ! The chainsaw, and the Go-Kart definitely have our attention !

Dude. I love all those engines. Thanks so much for the great video.

Excellent video. Thanks

The Liquid piston would be good for power armor where light weight, fuel efficiency and high output power is more important than engine longevity.

Damn I saw a rotary engine so I though of a new way to make an engine, then found this video and the arches 2.7 is what I was thinking of trying 😂

Love the 2.0 Vc-Turbo on my Altima & 1.5 on the rogue. Provide nice power & efficient on fuel ⛽️

Is this available to purchase somewhere?

... you're right. all strange, and i've only heard of 1 of them (Mazda's SkyActivX).. you get a Like, good sir

that second one looks like it would be susceptible to alignment problems...

that circle cycle has a LOT of meme potential. nice

I love that 'pocket tanks' background music in this video.

Wow yeah this thing probably hits way harder than my zvx 18 what was I thinking

Imagine trying to lubricate that last engine design...

The Skyactive engine design has been around for ages. Think it has promise, that rotary too?

You should've mentioned konigsegg's electronic valve engine. That thing is dope

Imagine a 4 cylinder push rod with a simple carb.

The quasiturbine (No. 5) 1:32 is similar to an engine invented in the early 1960’s by Eton Rajakaruna, a friend of my father, in Hull, UK. He was from Ceylon (now Sri Lanka). He called it the “heart-beat engine”. It was featured in an article in Popular Science magazine in April 1962. He was inspired by a vague idea my father had about the possibility of containing the intake, combustion, expansion & exhaust cycles inside a bag-like vessel instead of using a piston & cylinder. Eton’s design looked very similar to the quasiturbine except the combustion took place inside the collapsible box. He was a proud man & claimed that he’d built the entire thing himself in his kitchen using minimal tools. In actual fact my father made most of the prototype parts for him & he made small changes himself. It never ran because it was almost impossible to seal the hinged corners & sides where the combustion chamber contacted the cam plates on either side. It recently struck me that it may have worked better as a steam or compressed air engine, a point that is also made about the engine in this video as well.

Chieftain Tanks had the Leland L60 engine. 12 pistons 6 cylinders. Opposed pistons. I used to drive one back in the early 80’s interesting to see that engine configuration again.

Check this out, it's a newer but quite innovative engine: ukposts.info/have/v-deo/qmV9mneReWaF1Yk.html

The LiquidPiston X is going to end up having the same apex seal issues that all rotary engines have. I also have yet to see a multi-rotor LPX, as all of the ones I've seen have been single rotor with the same triangular shaped intake and exhaust; how would they design for a multi-rotor, or even a design for a more conventional intake and exhaust? Having the ports spaced around the shaft makes things more difficult, and a multi-rotor would have an odd design of intake-rotor-exhausts-rotor-intakes, or for 3 rotors it'd have to be i-r-e-r-i-r-e, and the piping for that kind of setup would be insane. What about chargers, with six inlets, and all the piping that comes with them, you'd end up needing some hefty charging equipment when compared to other engines. Wiring is another issue considering all the plugs are also located around the entire engine. Also the difficulty of machining the rotor is questionable. There's also the fact that LiquidPiston disappeared for years, then came back just to disappear again, and last I know, nobody really knew why. Either they got a good contract, or they ran into financial issues. Of all the new engines, outside of mass-production ones from large corporations, LPX is one that I would've hoped to see come to market and actually be decent. It'd be nice to have a modern rotary, other than being used as a hydrogen fueled range extender for electric driven hybrids, but I don't think we'll ever see one at this point. Hopefully someday LPX will have more than just a single rotor to show off, but I have my doubts.

the second one just making the infinite popping sounds lol

The Achates sounds like a rehash of the Leyland L60 engine the British used in their trains (where it ran at a constant RPM, and worked well) and the Chieftain tank (where its only saving grace was you could swap the engine for the spare you brought with you in three hours).

I can already see Nr. 6 exploding in spectacular (and expensive) fashion.

That 2nd one looks dangerous as hell

Achates 2.7 is really nice concept that way 360° blast efficiency can be captured.

The Achates is a similar design to the old Leyland L60 or Commer "knocker" engines, or even a Doxford, being an opposed piston 2-stroke diesel engine. It's just a lot smaller than those older models.

Hi, I'm looking for mechanical(!) 100,000t up to 200,000t press processing machine and it's application (where such presses are used).

Should make a video about new winding techniques for electric motors, new magnet technologies, transformer rectifiers, batteries or big capacitors. We are not going to be using gasoline much longer. Also the hall thruster was very cool.

Thank you for the great video

I like the circle cycle, and achates engine. Definitely game changing designs.

Looking forward to the sky active X engine.

We need thinking like this now more then ever. Really cool.

1:50 Gotta love that plumbing pipe handle.

The 6 piston 3 cylinder engine is basically an evolution of the Napier Deltic, the German Jumo 205 and the Fairbanks Morse 38 8 1/8 submarine engines. Look them up, especially the Deltic, a fascinating and complicated engine.

Gm: yeah, just reuse the block... New heads? Sure, yeah that works. Just make sure they fit that one block we made in 1997...

A good rule of thumb, fewer moving parts means better longevity. (Provided parts are made to a set standard)

Great video beautiful 💡

ukposts.info/have/v-deo/knaih52GfWiUy4k.html ukposts.info/have/v-deo/jaBzra16gZqAq4E.html 중력과 반중력 엔진

The things that Koensigg is doing is truly incredible . Check it out ! The guy is a genius ! Solenoid valve actuation , infinitely variable . He also came out recently and stated that all internal combustion engines will be ineffective in catching the quickness of the EV’s but that hybrid drives will be the best way to go until battery technology catches up . He is a man willing to see what is wrong with what he has been doing . I expect Koensigg to come out with a hybrid at some point now that he has seen what Tesla has done .

These concept engines have been around for 30-40 years...

I just watched this because i'm interested in making 3d rig of an engine. So using this as a reference. Though i did not understand much about it but i think i understood the concept of the engines that were shown in the video which is gonna help me create a rig :p . Thank you.

I wish I had a grip of this knowledge and imagine with the names and numbers and what each components individually do.

the liquid piston rotory by simple physics is definitely a bit of an upgrade. Its basic physics. The rotor path is smoother and because it uses less forms of motion, more of an in and out AND round and round creates less dynamic internal momentum change=less momentum to change=less rptating weight+a round rotor design would seem to allow different terms of compression.

The Infiniti/Nissan engine is the best and practical. Thanks.

This could be the first V12 engine in a kids car ? 300cc 4 stroke water cooled sohc :ukposts.info/have/v-deo/fntoeoKbZ2iWmmg.html

Cool video, thanks :)

It's exciting to see engineering hasn't given up on the gasoline engines.

Even mechanics are engineers themselves and they quickly pickup the defects of creators of machines

Here's the strangest engine: ukposts.info/have/v-deo/a2mGf4mdqplqu2Q.html

What an awesome selection of engines!

"Too Complicated!" LOL. Compared to what? Have you seen the inside of a Mercedes DOHC V12? And they run reliably for quite some time thank you very much.

#2 is cool, but even a small offset and it blows itself up

Very interesting designs... The simplest and probably the most efficient one is the Liquid Piston engine... The power to weight ratio potential of this Liquid Piston design is also quite impressive... The Wankel Rotary engine was a very innovative design, and they had tremendous potential, but they had some serious inherent problems. The 'Liquid Piston' engine design seems to have solved all of the inherent problems of the Wankel design, with the high power to weight ratio and what appears to be extreme reliability and simplicity...

Sir background music name please tell me

Some of these look like exercises in how to make an IC engine vastly more complicated (and thus, less reliable and more expensive) for a 5% or 10% gain in mass/fuel/power efficiency.

Well, until then, we're still waiting for the interdimensional engine from Area 51 to appear.

2 is old opposing piston tech going back to the Junkers engine in the BF110 during WW2, the highly successful Commer "Knocker" engine of the 1950s and the Deltic locomotive and ship engines of the 1960s

have any that work by themselves? no air line or electric motor running it?

The Achates reminds me of the Deltic opposed piston locomotive engine from 70's or maybe late 60's.

The extra friction and weight of the Infiniti VC engine probably erases most of the improvement in efficiency. The extra manufacturing cost of the monkey-motion linkage makes it more expensive to build and buy, so it probably won't pay off for the user. I predict a short production run.

My top three favorite new and upcoming engines by number, 6, 1, & 3.

The CV four lobed epitrochoid motor could be efficient af!!! That is cool! Think it was #4 on here.

2:06-2:20 i thought i was having a stroke

The potential of mechanical engines are endless: I'm so hyped up ............... THNX for the video, mate.

Quasiturbine: *Starts* Satan: *GRITS TEETH*

Very intresting. It all depends on the efficincy and consumption for the future.

It would be trippy if someone got an air impact wrench to operate as a 2 stroke engine.

1:25 - that's not a running engine, it's being driven by an electric motor. It just proves you can make some things that fit together when rotating.

The Duke engine is a pretty cool design. Fairly familiar. You guys should look into it.

Variable compression ratio has been done before by moving the cylinder block in ralation with the crankshaft. ukposts.info/have/v-deo/g2mFp6mxqayD1Js.html

Number 6 is a bit like a deltic engine