That design isn't just for compressors! It's an engine too! If you take a swash plate compressor, reverse the reed valves, drive it the other way using propylene glycol dinitrate, you get the motor that powers many torpedoes!

They make pumps that operate by a similar method, but the angle of the swash plate is variable. It lets you use a constant speed motor and get variable fluid output or constant output at variable speed. Amazing designs!

Swash plate pumps and motors have for the most part taken over hydraulics in the efficient use of power and control. I've worked on or experienced their use in such divergent applications as excavators, dozers and wheel loaders to cranes, heavy haul trucks, rock drills, compactors and more. They are used as main propulsion in torpedoes now. I had no idea that the basic design went back so far. I've heard a few time that most machine designs have been invented in the distant past, but their use is never fulfilled until materials science catches up to the demands of the applications. Thanks for the video.

Making these animations must have been so much work - just wow! Machine Thinking is one of the extremely few channels that started out with a video of outstanding quality five years ago (I still occasionally go back and watch it). Since then, the quality has only improved (Though I am hoping for some more really foundational videos, like the first few were)

11:37 *"hundreds" :) I think just implementing a swash plate to change the angle of points on a spinning mechanism could have been influential in a ton of machines, but helicopter rotor swash plates come to mind. Helicopters weren't practical until the stability issues were fixed with variable pitch wings.

Babe wake up. Machine thinking just dropped a video

10:47 as a follow up you may be interested to know that the electric compressors found in nearly all home appliances responsible for moving heat use much the same mechanism. You'll need a cutting wheel to get into those, however; they're usually hermetically sealed

Happy you are back please keep uploading! I show all my friends this channel to help them better understand what I do. Also gives me a wider sense of gratitude and wonder for the world around us ❤🎉

Fantastic animation (and that ending 😅) and very interesting about A/C pumps - so that ingenious complexity is why they are so expensive...

there was a special kind of aircraft engine that only ended up being used on blimps but Barrel Engines are one of those weird what-if technologies because they are very close to radials in size

I love the 3D modeling and digital rendition on these.

Thank you for continuing to make these videos. Always worth the wait.

That design is also used in hydraulic pumps like in lawn mowers with hydrostatic drive rather than gears and to supply high pressure for all kinds of industrial machines like excavators, bull dozers, back hoes and so on. I don't know for sure but I imagine the first use of that design on an industrial level was along those lines rather than air conditioning and there might be credit given in those examples?

2 stage pump generally has smaller pistons on the hi stage. My guess is just one is just double acting to get double the displacement/cooling power from one swashplate.

I am so happy to see you post another video. The time you put into every video shows and I recommend all my friends to watch.

So good to see another video from you, the wait was worth it!!

Welcome back! I've been waiting impatiently for the next video in the series. Edit: as a former automotive repair pro for almost 20 years I instantly recognized that mechanism but was surprised when you broke out a compressor yourself. The last time I felt like a message was tailored to me so well is when my doctor described my diverticulitis as being similar to a separated tire 😜

It looks to me a lot like a hydraulic piston pump, but with a couple extra steps. I had no idea that's what's inside that pump you took apart. Thanks for the info!

Pressure washers sometimes use a design like this. Other pumps arrange the pistons on a crankshaft, but use the same multistage pistons. A/C compressors also utilize a very similar mechanism.

I was just yesterday lamenting the lack of recent videos, and had thought maybe you gave up. Keep it up, your stuff is so good!

I was going to say: hydraulic pump. But I guess more people have a car with ac than industrial equipment. 🙂

Ramelli's notes were required reading in my mechanical engineering, but I didn't even think of it being in an A/C compressor. That"s actually pretty enlightening :) I know the common well pump is based on his rotary pump. and a steam engine piston is based on his wood & leather pump piston, an internal combustion piston also for that matter.

I rarely find a channel in which I find myself watching every video. Even rarer is that I learn, not so much retain, a lot of information. A gem find.

Stunning graphics & explaination. So many channels exists doing similar things but you stand out.

You are having far too much fun with Blender or it's equivalent. Thank you for the excellent history lesson, graphics and practical example. An episode on how you make your models would be interesting too. They are excellent.

Great video!❤ This is the first I've ever heard of Ramelli, and I will be sure to read up on him now, thanks to you and your patrons. I'll add that pressure washer pumps use this design, as well as hydraulic system pumps, which I'm sure others have noted. Thanks for video!

This was really cool to watch. Thanks for the effort!

you earned my subscription with the mesta 50. keep up the stellar work my friend.

That animation model! Wow

An A/C compressor compresses a cool, low-pressure refrigerant gas in to a hot, high-pressure gas,which is pumped to the condenser to be returned to a liquid. If a liquid were to be introduced to the compressor it almost always damages the compressor. BTW love the subtle "subscribe"!

I cannot think of which modern machine this sort of thing goes in to however, I love your videos so much and I want nothing more than for them to succeed so that I can see more of them. Genuinely, thank you so much.

Just found your channel and subscribed. I especially like the video animation with the cut aways. Makes it easier to visualize the description. Keep doing what you're doing. Thanks.

The thumbnail made me immediately think of swash plates in a helicopter rotor system, but I’ve also seen modern pumps and reciprocating engines that use a similar mechanism.

I enjoyed the cringe-factor of your disassembly. Stacking every part upside-down, in relation to the previously removed part was some excellent rage-bating.

Phenomenal animations! Thank you!

That there's a connection is very possible, but just as likely (I think) would be that this was invented multiple times, it's quite basic in its nature (though amazing they thought of it back then).

I'll add another "modern" use of this to the list, check out the Sterling Crankless Diesel engine from 1933. It used 2 discs and opposing pistons.

Bravo! Excellently scripted and presented and very educational! Thanks for sharing and the best of luck!

My first visit here. I enjoyed this video and learned something. Thanks, great job.

There are several applications to this design known by several names like Swashplate, slantplate, wobbleplate and more. There are several engines that have used this system, Torpedoes, vehicles have all been made with these engines that are also known as Barrel, Z Crank and Axial Engines and go back to the very early years when car engines were being made. Dyna Cam started to make one for aircraft in the 50's or 60's for helicopters and designed a 12 cylinder engine that was tested in a Piper Arrow aircraft in the 1970's. Because of the horizontal movement of the pistons there was no vibration like you would get in the standard engines most people know about. This Dyna Cam Axial Engine with 12 cylinders fit in the same space of a 6 or 8 cylinder engine and was extremely mechanically simple and easy to work on. I only wish the made one I could stuff in my 68 Camaro. This swashplate system is used on pumps and compressors of all types especially when they need to be compact like for hydraulic pumps or refrigerant compressors in cars. The Gatling Gun uses this swashplate design in order to cycle the bolts of each gun barrel in order to remove the cartridge from the link, load it into the chamber, release the firing pin to fire the cartridge and they remove the spent casing. That is still being used in the military today on every fighter aircraft. The most famous being the A-10. This is one of the major inventions that effected the world. And to give y'all some understanding of how lucky we are to live in our time you should think about this. Since the beginning of the human race, throughout all of History, in each Century there were 1 or 2 major life changing inventions during the Centuries, with a rare occurrence of 3 that effected mankind. In the 1800's there were 4. But if you were to take all of these major inventions from the beginning of mankind to 1900 and add them all up, the sum wouldn't be close to half of the inventions from 1900 to 1999 and most of them came in the second half of that Century. I worked as a Machinist and I know how a simple invention can lead to a major development of a completely new device or system. The old saying "Necessity is the Mother on Invention, the old 1973 Paul Simon song "One man's ceiling is another man's floor" in a way can explain how inventions can leapfrog to something that was never the thought of intentions of the first invention. Like this device that was made to pump water that is now used in literally thousands of items people use everyday and they never know about it. Another part of this device in the video, the Lantern Gear, that developed into a sprocket, to a sprocket or gear pulley that drives the timing of the valves and distributor in cars. Or how the abacus lead to the calculator and the Jacquard machine card lead to the modern computer. Some of you out there are old enough to remember friends in high school that went to Keypunch training and did that for a living in the 1950's to the 80's. That is what the Jacquard Card had developed into and many out there should remember getting utility bills printed on a card with rectangular holes in it. That was what was run through the computer. If you would like to see more stuff like this, I would suggest looking up 3 old TV documentary series that aired in the 70's and 80's and watch them in order. They were by James Berk an English History Professor. The first was "Connections" the second was "The Day The Universe Changed" and the third is "Connections 2". Each show was an hour long and in most, if not all, he starts out with something small and goes through the show, so that by the last 15 minutes you are asking yourself where is this all going as you think you got lost somewhere in the program. But in the last 10 or 15 minutes he puts it all together and you realize how some off the wall nothing invention grew and changed the world. That first one, Connections, changed my life and how I look at things today. It will show you just how little 99% of you are aware of how vulnerable and dependent on technology we are today and it is scary. Half or more of the worlds population would be gone within a year if any one of several vital systems were to crash even for a short span of time. If none of y'all have seen this Documentary here is a link to the first Connections. The first 20 minutes will show you how fast a small simple device can cause a cascading system crash ans should make you think when he gets to a farm and explains the choices you will have to make that none of you are prepared for if it were to come to that point. I said I was a machinist and I am, but I learned all of it in my military service. I've seen the conditions that turn people into animals just to survive another day and it may be coming to that soon with what is going in in the world today. Here is the link, enjoy and learn: kzfaq.info/get/bejne/jsuko895yLObkYU.html

Thank you so much for your wonderful content.

Fantastic video as always!

Ah! Joy! Machine Thinking has posted again :D Thank you MT!!!

I dont know how I stumbled upon your channel, but my god, do you put in effort!

Nice graffics. Thank for the cool info. Very interesting.

thanks for your work

Those animations were incredible!

Quality content! I am an archeology student who also loves history, graphic art, art history, how-tos, tech n engineering, and antique tools and machine restoration channels You've got it all

Right on. Thanks for sharing.

Wowzers, this video going into details actually gave me a few ideas for next few experiments with hydraulics! Thanks for the upload!

Oh boy, what a treat! A new video!!! Yes!

Well, that was fun, thanks. Oh, your graphics are great!!!

Always a good day when MT drops a video

brilliant presentation

The moment I saw that disk sideways, moving pistons up and down, it reminded me of the air conditioning compressor in cars that I have seen many times in my Automotive Technician's college book, I never bothered to open one myself, as we don't rebuild them at the garage, time is money, we just order a new one or rebuilt one and swap them in. It's incredible how these old designs influence our daily lives, really cool video dude!!!!

Thank you, it's a good day when l have the joy of watching a new video of yours. Hope things in your life are going well.

That is fascinating, thanks!

Loving the animations

Yes sir, you actually did earn my subscription. Your 3D rendering is 'off the chart'!

I saw something like this when I took apart my car’s old a.c. compressor. Love the videos!

Oh my god, a new Machine Thinking video! We've been awaiting your return

Very nice graphics!! Thanks

YOU ARE BACK YESSSSS

The computer rendering of that video is incredible! Very nice!

Amazing this lecture sir

Yeah, beautiful animated illustrations. Thanks.

Excellent video thank you. Cool use of Blender too.

How I savor each new episode of Machine Thinking.

Your animations are top notch....very nice

Most impressive is how Ramelli put the word SUBSCRIBE on the pipe the water goes up in his water lifting pump.

Great video; the slime at the end was a nice touch of absurdity!😂

I took apart my Kärcher pressure washer a few months ago, must say your animation immediately made me think of it 😅

Hooray!!! New Machine Thinking video!!! You have been missed!

IDK what machine did this mechanism turn to today, but the animation of the model is very neat and easy to follow! 👏 Not an engineer and have just basic theoretical physics knowledge, so this is soo cool to understand! Brilliant, thank you already for the first part of the video.

Man thank you so much for being well-spoken and straight to the point, I love good science videos like this and I'm very thankful that you made it good job man super interesting got my like and subscribe

Great animations!

Great video, I think it would be really interesting if you could recommend various books on machine topics and their technical details and creation!

Great history & engineering info! :)

Next level graphics there !!

I don't have a guess for the machine but I appreciate the photo on screen when you ask us to pause the video. I use the same hard hat!

4:37 i instantly subscribed after is saw that you made 3d Modells if what you were Explaining its a highly professional video.

I'm equally amaze by all the details of the environnement in the 3d modeling and the ingenious thinking in the middle ages

Talk about a contraption! Amazing.

MT: You put a lot of work into this video...and it shows. Great

4:30 I didn't see the letters out the corner of my eye until the last 2 or 3 so I had to rewind, thinking I was missing some important notation about Ramelli's work...... great advertising pitch, I subscribed :)

Lol I’ve been waiting for this channel to upload.

Thanks for a great video. Certain pressure washers also uses this principle. The moore pistons the smoother flow. But as always smooth comes with cost.

Wow one glance and I seen it as well! Crazy he came up with that way back then.

Very cool! there is a video on a '1 stroke engine', kek, and it used the same wobble plate idea but as a raised track. basically a fancy sewing machine cam.

Very cool vid!

I have disassembled a rotary pen type machine that used a swash plate system to drive the needle. It had a Faulhaber motor and was very well made and smoothly operating.

You have indeed earned my subscription. I confess that I find the shameless begging for it extremely off-putting, but those animations cannot be ignored. That was an absolutely wonderful way to convey the mechanical workings of that machine. I do have one _tiny_ criticism of the animation, not of the actual animation part of it, nor the modelling, but rather the _texturing._ Most (but oddly, not all) of the teeth of the crown gear have the wood grain running horizontally through them, in the same direction as the stress they're under. Now, I am neither a mechanical engineer or a woodworker, but it does seem to me that one would very deliberately cut those teeth in such a way that the grain was perpendicular to the direction of stress, in order to minimize the risk of a tooth snapping in half.

Sensationall!

Not just stuff like the car's AC, but you also have it in hydraulic sender pumps for things like excavators or even a ship's rudder (where the tilt-block is adjustable to reverse the hydraulic pumping driving actuators), or you find the same general configuration being driven the other way by the pistons in air powered tools.

Really enjoy your videos, that animation was excellent also really brought it to life, i sometimes wonder what these old engineer/inventors would think of our CAD and CNC machines and how easy it is to make things i bet they would come up with some wonderful designs.

I think the part at the top of the wate pump was very clever as it would act as a short term reservoir to smooth out the flow (if not too great) even more than the 4 cylinders.

Fun! Just subscribed! Ty! It looks like a hydraulic pump on an turbine engine. They are used to produce three phase power APUs, ailerons, flaps, rudders, and wheels under load from the engines or for a limited time with a stand by jack when the engines quit for emergency situations.

He’s BACK!!!!

Thanks for this video. I was immediately thinking of hydraulic piston pumps when i saw the design of that water tower. Amazing that he figured that out hundreds of years ago. I guess the only "new" part in the modern pumps is the spring loaded checkvalves.

Thanks again :-)