TOP 10 STRANGEST Engines 

Congrats for not clickbaiting.

Awesome! A "cool engines" video where the thumbnail is actually in the video!

Very well done. Your narrative was concise and informative, the background music was just that, background as it should be. Not some overwhelming headbanging. I thoroughly enjoyed this video. Thank yo.

I came here to see the spherical engine in the thumbnail. I was totally expecting clickbait and the need to dredge the comments to find it. Thanks for not doing that!

The Duke engine is an adaptation of a fairly common air conditioning compressor. I often wondered if it could be adapted to become an internal combustion engine. Cool that someone did it.

wow good video, usually these videos are just stuff I have seen a hundred times or more but the Columbia uni engine is truely something of a new one on me and a rather interesting take on a hydro power. however the solenoid engine has been done a number of times over the years with little information going public due to the expected short comings of reliability but well done, great content

2:20 - The Napier Deltic is the big grandfather of this engine. It has 36 pistons in 18 cylinders, arranged in a delta configuration of 6 banks, is a two-stroke Diesel engine, and develops up to about 2,500 horsepower. The 'Baby Deltic' has half the number of banks. The Deltic was developed from a 1930's Junkers Jumo 204 design under license. The engines were variously used in aircraft, military boats, railway locomotives, and even in a New York Fire Service water pump. They were sometimes used in pairs; 72 pistons in 36 cylinders. So the basic design of the engine in the video is at least 85 years old.

Thank you for putting this compilation up .

"mach 25" Holy shit!

#6 the Duke axial reminds me of a AC compressor in a car if you ever take my part that kind of look the same

I really liked this video. glad I stumbled across it. I love seeing the new innovations in engine technology.

Thank you for actually showing the engine thats in the thumbnail, really cool!

Relay engine's are getting better, I'd like to see more push towards renewable biofuel especially for whole house heating.

Thanks, very informative. Thumbs up

This was really nice video because of all these demo videos and animations. I really liked to see them running.

Number 5 has my attention, that is one hell of a serious Engine. Thanks for the share!

The "Opec" engine seems to be the most practical option and even the "next" logical evolutionary step in the well known "boxer" engine. All, aside from the "bacterial" engine, seem to have probable applications in the future if properly refined. In my humble opinion, magnetics will play a big part in future powertrains both on a planet and in space.

"You see those experimental engines? They’ve got curved pistons. Curved. Pistons." - Whiterun Guard, probably

Cool video. I seen some where that a few car company’s were looking at “camless” engines. Some were looking at an electronic solenoid type design that looked promising also..

Great content! I had no idea several of these engines existed.

I'm sure we will see a lot more from Koenigsegg in the future. They're a genius company. As always, good video ;)

The sabre engine is already made. its not used in any aircraft or spacecraft yet, it works. VERY well.

You got my like for the SABRE engine! Sweet!

Good collection of engines! I hope at least some of these make it into production.

The OPOC EM100 engine is just 1/3 of the Delta engine that still runs trains in England and was a spoil of war designed by the Germans in WW2 and reverse engineered by the Brittish to use in their long haul transit system....Many blessings , SMR

Great show. The Saber engine is even more remarkable than you mentioned. First, it takes off as a jet then like and the blackbird's engines, transforms into a ramjet. At the highest speed that can drive it it becomes a rocket motor. If that aint cleaver?

I love how amazing these are

Outstanding! You should also check out the Toroidal piston engine invented by Everett Harrington Black Jr. (my dad).

Edit title: top 10 coolest engines

brief informative and not an insult to intelligence

Great video!

Lots of clever smart people out there. Videos like this are inspiring as we get to see that we do have "thinkers" among us. Thanks for the video.

I thought this was definitely clickbait, pleasantly surprised

yay no clickbait! However I will say that the EM drive doesn't have much promise. Although it does produce thrust, most of the more reliable tests show that it produces thrust in accordance with Einstein's E = mC^2. In other words, energy has mass, so this doesn't violate any laws. The engine produces less thrust than a flashlight though, so we probably won't see it working... ever. Moreover, there is this neat saying that goes "friends don't let friend use reactionless drives"

Thanks for not making us wait until the end of the video to see the engine in the thumbnail :)

This was a surprisingly good video, no bullshit, everything possible or theoretically possible (that EM space drive is based on some really weird quantum mechanics, bu then again, everything is weird with quantum mechanics), no click bait, and well articulated.

The freevalve camless sounds like a good way for a piston to smack a valve. At least with a standard engine, this is quite unlikely as unless a timing belt or chain slips or breaks or a valve collet comes off. Also, #7 the opposed piston engine was first built by Jumo in WW2 as a diesel plane, then modified by the British to make the Deltic post war. It is an old design, but really an untapped idea I believe.

Two more to consider: 1) dynacam/revolver/Papp Axial 2) scuderi split cycle

Very good video..well made, informative and fun.

great video !

The duke engine looks like the inside of a cars ac compressor

The OPOC EM100 isin't a new idea. There have been countless opposed piston engines, Like the Junkers Jumo 205 and the Napier deltic engine, and Commer ts3 engine. They have been used commercially of years in cars, trucks and even airplanes.

very nice I would like to see some of them energy efficient models in cars and motorcycles

3:25 problem is is the fact that stirling engines have used this for a long time aswell they arnt inviting a new engine, just revisiting and updating a existing system

The camless engine isn't a new idea, either. International built a technology demonstrator back in 1996 which used electrohydraulic valve actuation, and even worked with Sturman Industries to produce an engine which raced to the top of Pike's Peak back in 2000.

#9 This is not an engine! This is a motor, that is all. Engines consume fuel releasing heat energy that is transformed into mechanical power.

The idea #1 was just awesome

Before I discovered it was already a thing, I actually designed a camless engine in my notebook at school... It was like the free valve, accept it was more basic and only used basic computer stuff, or maybe hydraulics, to get the valves going. My design never was built, but I figure it'd be hard to start without advanced understanding of how I could make it start up right. Maybe a separate mode just for starting.

wankel rotary should have been included before the sillly paper engine, whilst amazing is not really an engine per se. Rotary-POWA!

Number 6, this a swash-plate engine updated from 1960's. Nothing new here.

Gravity based energy storage systems would work great in tandem with the sterling csp engine.

i put the free valve idea out there years ago. I called it the servo P. short for servo-actuator positioning engine. Im glad to see someone was listening. piece out!

5:34 Fail at that point. This vid was supposed to be about engines, not pipedreams or delusions.

I thought making paper hats was cool... this nigga be making v8's...

Working on a reciprocating permanent magnet motor-generator, using superconducting wire and combustion of methane gas. Compressing the magnetic field of a neodymium magnet is a way to "momentarily" store energy from the combustion of methane gas, in that balancing motion & mass is like putting a spring between two freight trains moving head on, even when both trains are moving at exactly at the same rate and have exactly the same mass the trains will still be going through that force that pushes & bends. Balancing the center-points & controlling vibration & lost motion seems to be the key ingredient concerning the top 10 strangest engines, I love this video and would like to see more like this!

The EM drive was finally proven to not work as advertised by a lab in Germany. It was tested on a torsion balance in the usual two directions, and found to emit micro-thrust. But then they rotated it 90 degrees and found abnormal thrust. They turned the EM drive off and only put power to the electronics and found it was generating the same thrust. Concluding that it was an interaction between the twisted pair wiring and the Earth's magnetic field. And it's a REALLY good thing it doesn't work, because reactionless drive systems are the stuff of science fiction nightmares.

Well, the EM Drive didnt age well.

so the 'free piston' is a shittier boxer motor

Ya left out my fave: VASIMR :-)

Cool vid definitely appreciate the lack of click bait. I Wonder if the makers of some took their ideas directly from historic engines or just a bit of inspiration. 8 is definitely similar to the Barsanti & Matteuci 7 is a twin Kansas City lightning engine. 6 can be found almost exactly as its shown in the technical museum in Kerkade, NL And 1 seems to be an advanced cross between a McVicker gearless and a Franklin valveless engine. Keep up the good work!

strangest engine and most sucessful reliable when maintained.... The Wankel Rotary efini Rx7's

please.. making a video with high speech content, make sure you articulate and modulate enough the voice in order for listeners to stay on it, alert, otherwise it's just a waste of.. energy !

I can't wait for the SABRE to become flight-ready

That Bacterial Spores engine is phenomenal in that it can be used to generate not locomotion but power.

5:25 - Ask Tesla about a Powerwall.

The EM drive is a scam.

Well done and entertaining video.

Thanks for talking about the EM drive. I didn't expect that on this list. FYI, a spacecraft can remain in orbit without a propulsion system. Rockets are only required for maneuvers.

0:13 germany

the opac is nothing more than a junkers engine-used by the Germans pi re WWII

I think that is very interesting and informative.

6:35 I had that exact idea 13 years ago except instead of pneumatic actuators, my idea was to use electronic solenoids. I wish I had stuck with it.

People and now watch some car videos :)

discredited because you mentioned the em drive

amazing video

-So, You think the V8 paper engine is gonna go places? -Not really.It's mainly stationary!

Nissan has made the variable compression engine it went right over your head

I'm sorry but those are not long lasting engines especially the free valve. cars have more then enough electronic crap strapped to the engine.

4 years later nothing has comm out , as far. butttt cool vid :)

very nice job congrats

Frankly let's stick to normal engines in cars.

the OPOC engine is a variant of the old Junkers two-cycle opposed piston diesel engine design.

Cool stuff

The Duke engine geometry has existed in A/C compressors for a very long time. A quick Wiki search shows that the first instance of a combustion Axial engine was in 1911.

Really interesting!

opposed piston engines have been used in diesel and bunker c marine applications for decades, this opposed piston engine does differ though in the way the engine drives linear generators, very smart innovation thinking forward to new fuels.

A nice compilation. The only engine missing that I would have expected to find here, is Liquid Piston's rotary diesel.

You should check out the Mitey Engine too. Neat concept in action. Gas and diesel for life with me. As long as they create sweet sounding notes.

the strange duke was frickin' awesome looking

This Channel is damn interesting. Please keep it up and keep releasing cool content.

amazing you content and your channel.

The Duke is the old Waterbury Speed Pump used to cancel warship's roll to allow main guns to aim well.

I rarely give likes out, you deserve it for not click bait or fake news

I've always been told that engines create their own power (Internal combustion Engine), and motors take power from another source (Paper MOTOR, or a windshield wipers motor).

1:25, the only downside is that the power can't transfered and it is not in a boxer config

n°6 is just a AC compressor. I was thinking about it years ago cool to see someone think about it too

That freevalve is kick ass idea. No longer do you have to grind cams and meticulously install and break them in, just go to your tuner with your wants, have him/her clickity clack together your dreams, and enjoy your new performance!

There used to be something like the Duke engine in the dockside museum in Bristol, UK

There are also LPE’s ( lego pneumatic engine) which like the paper engine runs on air. I’ve built some myself, they are composed of lego pneumatic cylinders and valves but the problem with these is the engine balance since the valves need to open after the cylinder reached tdc

Freevalve sounds very interesting. Similar to having variable valve timing but it can be adjusted on the fly in real time? That sounds amazing for both performance and economical reasons. Nice I like that kind of tech that does both.