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100 HORSEPOWER in your HAND. Hydraulic PISTON PUMP!
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- čas přidán 22. 09. 2016
- Behold a titan of industry; the AXIAL PISTON PUMP! This beast will output 100 horsepower all day long. Here's the mind blowing part: the pumping element that does all that work FITS IN THE PALM OF YOUR HAND! It has a very interesting feature that is lacking in the hydraulic gear pump: it can vary the flow of oil depending on the demand of the system. It does that by changing the angle of a swash plate. The easy way to visualize how this pumps work is imagining that each piston is a hypodermic syringe whose stroke is limited by the swash plate.
Long term projects here: / ave
"She who must be obeyed has come down into the empire of dirt and told me I'm out of time" This is why I watch your videos. You're too funny XD
When someone tries to tell me a word is made up I always remind them that all words are made up. I love this channel.
Thank you patrons
and Thank you AVE for being fuckin awesome!
Ave... hey man I rebuild electric motors and gearboxes for a living and I'm having a hard time wrapping my head around the fact that you just pulled the bearing off bare handed. whereas on gearboxes they are a press fit. how does the surface not wear?
Travis Gaither it looked like a taper bearing so it probably is held in place by the axial pressure from either the assembly or hydraulic pressure.
30 years ago I worked in a factory that made compact versions of these originally designed to control gun turrets on bombers during WW2. They also built a brilliant variation called a "back to back piston pump/piston motor". It placed two of these units back to back on a single fixture so that the oil output from the first pump, which is driven by the power input shaft, flows directly into the second pump. This flow then drives the second identical pump and makes it act as a hydraulic motor. You get a compact unit with no external hoses or lines that can be controlled by a simple handle connected to the axis of the swash plate. It also acts as a variable speed, reversible transmission, all with just one mechanical control (a STICK!) connected perpendicular to the axis of the swash plate.
Well that's interesting as fuck
Haha, I thought so.
That is interesting, please share more details and examples if you can.
That's how a hyrdrostatic transmission works on many lawn and garden tractors. With one on each wheel, you can literally turn on a dime..
bulruq
That's pretty cool, especially the bomber turrets part, I guess they were steered with pedals (right and left), I have to dig a bit for more details.
I was trying to picture how the fluid got into each piston. I had to think about it for a minute to realize the (possibly self-evident) fact that as it's rotating, the pistons are on their intake stroke over the inlet and vice versa.
Really looking forward to the "hydraulic computer" vid.
Yeah, as the cylinder rotates and pistons follow the swash plate, they move down as they cross the inlet creating a vacuum effect that draws fluid into the cylinder and then push up as the rise on the outlet side creating pressure that forces fluid out of the cylinder
Anyone else love just how perfect everything inside hydraulic powered things fit together when he takes this stuff apart?
100 HP in my hand every time I shower.
Until you release the Schmoo, then there is no point in pumping the piston any longer since increased pressure will not provide increased flow.
@@MerpSquirrel false, sometimes it has quick recharge enabled
@@rrtsduf :)
we need a shirt that says "RELEASE THE SHMOOOO!"
Death by Schmoo Schmoo.
I'd look at that and think masterbation. Just sayin.
Kyle A there is now
I have one
Owh, i want a tiet shirt like that!
When your hydraulics teacher uses this video in you class. Gotta love it
Aircraft maintenance and avionics at canadore!
A thing of beauty.
Fun fact:
Back in the early days of jet engines, these were used as fuel pumps. The advantage of these is that the full capacity of the pump is only needed at take off, only a fraction of that fuel needs to be pumped to the engine during the rest of the flight. If you use a gear pump, from take-off to landing it has to pump at 100% of its capacity, which means you have to let most of it drain back into the tank, this has drawbacks such as heating up the fuel that's not being used, over and over and over again.
As jet engines got bigger, piston pumps fell out of use. To get a higher flow, you can either run it faster or make it bigger. Bigger was no good because the size and weight of the pump needed became prohibitive. Faster was no good because no bearing materials exist which can survive for long in those conditions (remember these are pumping jet fuel, the lubricity is much lower than hydraulic fluid). On the other hand making a compact and high capacity gear pump is fairly straightforward, the only bearings you have to worry about are your sealing faces which are taking barely any load.
those variable displacement pumps are still in use on airplanes to keep hydraulic pressures at 3000psi. They seldom cause problems.
This video just made my night, thank you :) I knew how that kind of pump worked for years, but see one being torn apart, gives me new understanding and a greater appreciation for the work that goes into making them.
I have rebuilt a couple of hydrostats. One was for a lawnmower, and one was for a skid steer. Both were fixed by taking the bronze plate to a shop to get machined. The shop in town makes satellite parts for Bell. Using their fancy computers they machined it level to .0004" . They charged me $75. If there is any wear in the plate, the oil will leak off and go to sump. I have never had any other issues with the hydrostats (pistons, swash plate or whatever). 98% of the time it is that plate
all the hydrostats from transgear that I have done can be brought back to their former Glory by getting rid of the crappy lightweight gear oil they were shipped with at the same time micropolishing the plates on both motors and cylinders with a random orbital palm sander.. works like a charm😀
Do you mean .004? Because to get something down too .0004 that's amazing.
+roger brandt yes I meant .0004. they measure it with a Lazer somehow. the technology is here...
+DEBOSS GARAGE wow that's impressive I Run a Cnc lathe and can make adjustments to .0001, but never no need to go that low, what kinds machine do they use.?
+roger brandt no idea. I have a channel too. if I run I to it again, I will definately make a video though
i have never heard of, or need to learn about these pumps
when is part 2?
when?
My girlfriend gets mad at me during sexy time, when ever its the finish I always say "RELEASE THE SHMOOOO"
Haha
no, you don't.
Her father was right about you
@@nicewhenearnedrudemostlyel489 I can confirm, he does indeed yell it. But at least give her the full 2 mins.
This is such a throwback for me, I used to work for a company that made hydraulic pumps JUST like this one. Usually I have basic knowledge of how stuff works when you tear them down, but this one... I followed along and could actually know what you were going to extract next. Awesome shit man :)
man even when i go back into the ave back catalog. you just always have our backs. still to this day doing us good. your the man dude. giving us a peak under the petty coats. always just giving us the good long and short
This kind of design is relatively common, from the AC compressor in your car to a fuelpump on a 1950s jet engine...
"Axial thrust" is now the name of my band...
Our first album will be "release the schmoo"
I cant wait to hear the hit single: "Case Pressure".
"Backlash"
"Angry Pixies"
"Choochin all night long"
I was studying the axial pump on my john deere tractor and your video helped tremendously, thankyou so much will continue watching. Take care.
Thank you. This has removed a major amount of fuzz from my understanding on how these pumps/motors work. Keep that razor sharp.
Thanks Patrons!!
@8:38 does this remind you of Nicolas cage in "The Rock" taking out the nerve gas...eh anyone?
But more carefully
not saying you missed your boat, but you are clearly a talented teacher. thanks
Exact same type of pump that you find in an older (read good - overbuilt by factors in the 10-20x) hydrostatic drive tractors. I have a 1972 Cub Cadet 149 that uses this exact same type of pump - the infinite variability allows you to extract maximum torque to speed. My application was tractor pulls, a hydrostatic drive allowed you to set the engine to full governed speed and then vary what amounts to your final drive ratios as needed - full speed ahead and the start and then as you start to run out of power you pull back on the output to reduce the load against the engine driving the pump - same effect as gearing down but without any disruption in power.
Love this channel!
Andrew Cammer e e e e exzatleee
Thank you, more financially endowed than I patrons, for your service.
I love it when my pumping element releases the shmoo!
This is a fascinating channel and I always learn something in every video. Thank you patrons for funding this legend guy.
Usually I have about a 99 percent chance to have no idea what you're talking about and this video was no different, but I just love watching you take shit apart. stay frosty gents
Thumbs up if you have referred to Home Depot as The Homeless Despot and received strange looks.
I always heard the Homeless Death Spot.
In the Southern part of the US, the cool kids call it Casa de Pot.
Yesterday I mentioned something releasing "the shmoo". I was then asked whether that was some kind of technical term XD
everything I work on now has chooch, or lack there of.
I found a company named Chooch Enterprises and I about cracked up.
No they don't make skookum choochers they make model railroad parts.
thank you patreon,
this video ended too early
According to my mentor that used to make these at Vickers way back in the day (60's era), the cylinders were matched on tolerance to the bores originally and he told them they were idiots for doing that, wasted effort. They said 'well what should we do' and he said they need to thermally-stabilized the centerless grinding machine making the cylinders to remove the size variability, and they said build it. So he used a series of heat-lamps and temp-measuring devices placed over the coolant return to automatically turn the lamps on and off as needed, bringing the coolant to a specific temp regardless of ambient conditions. This thermally-stabilized the whole machine and reduced cylinder variability down to less than one ten-thousandth. Really, really good.
Now there was a big management meeting kerfuffle with company bigwigs in attendance saying he'd destroyed their entire pump business because now they could not match variable tolerances between bores and cylinders anymore, making the housings they were producing useless unless they could somehow match tolerances with the boring machines, which their boring machines were unable to do.
He again told them they were idiots and told them to buy a certain new boring machine that could produce the tolerances needed, which they did. Had it there by the end of the week, brand new, even though there was a two-year waiting list on these things. But hey, it was Vickers back when they were a big name, they threw their weight around.
Problem was, the technician they sent with it could not get it working! It was producing parts but unevenly, not up to the tolerance it was claiming. And he told the guy that the problem was the machine was running on flat-belts and should be running on v-belts, due to the flat-belt joining causing noise that ruined the surface-finish and roundness. So he spent a weekend stripping the belts and pulleys cutting new pulleys on a lathe for v-belts for the machine. He'd had experience building pulleys at his previous company so it was a cinch. This helped, but didn't completely fix the problem as they still had a chatter-issue in the machine as it bored the holes.
He realize the boring tool was too flexible, even though it was a thick piece of hardened steel. So he bought what was at the time probably the largest piece of tungsten-carbide ever made, for use as the boring bar on this machine, and hand-braised a diamond onto the end of it 'somehow'. He's not really sure of the chemistry of how he was actually able to do it, only that it must have carburized on there after so many attempts--this was before people commonly knew that titanium would've been the perfect material for this brazing job. Instead he just spent an entire weekend doggedly brazing this diamond onto the end of this boring-bar for hours on end and failing over and over again until it just worked.
Then he sets up this machine for boring holes and bam, worked like an absolute charm, making perfect-tolerance holes, no chatter, with a gorgeous surface finish, time after time. His bosses were amazed. Now every piston they made matched every hole perfectly and they no longer even needed to do tolerance grading to make sure which pistons fit which holes.
Which made the kind of disassembly you just did in this video, without a witness-mark, possible!
I've always wanted to own one of these style pumps since hearing that story, such an amazing piece of engineering.
As for my mentor, Vickers was priming him to run his own division, but instead he left and started his own company which he ran for the next 60 years, and still at it today in his 90's!
As a former vacuum engineer, working with both silicon and silicone objects at the same time, a tip: always pronounce 'silicone' as "silly-cone", so it's more different from "silicon"
Amazing stuff. Humans are a great species. Will definitely go out with a big bang.
Discovered this channel 3 days ago and I can say my skookum choocher is chooched right about now.
I just got a pump mechanic position. This is gold. Thank you sir!
One of the best AvE videos yet !! I learned about something that I didn't even know existed.
The torque these things produce is crazy. I have a diesel Deer garden tractor that uses three of these variable displacement axial pumps, one in the back and two in the front (AWD) and they run the two in the front coupled to the steering to adjust the wheel speed independently so it doesn't scrub in turns. Granted there is also gearing involved with the back axial pump but it's a powerhouse for sure. Very cool stuff!
pretty amusing and totally makes sense to me that they can handle serious torque, cause those tapered bearings are real similar looking in size to trunnion and wheel bearings on (toyota) pickup axles. the shaft also looks awful similar to the input and output shafts on their transfer cases that are pretty well known for how much torque they can handle under gear reduction. impressive hunk of steel there.
So we need to see that thing pump up a pile of pressure to run a hydraulic press and crush the hell out of some interesting object. Keep on keeping on.
Say it aint so AVE say it aint so.
LOL
Would be a Little over kill for a hydraulic press but what the hell! America !
Hey, i know you say to thank a patreon, but thank you for makign the videos. Im an IT nerd that tries to get his hands dirty on the weekends in the garage, but there is no chance im going to get to play with stuff like this anytime soon. Great to have someone that takes shit apart, shows how it works, and shares the knowledge while keepin it fun. Learn something new every day. So thanks.
rebuilt one of these style pumps from two bad ones, one had a good piston array, other had a good regulator assembly. Guts seemed to be made of some mighty tough metal. Boss was mighty happy.
looks like the inside of a hydrostatic garden tractor trans
Mustie1 it does dosent it
so you've been to Czechoslovakia? .. when? we could've go for a beer .. or 12 :D
ooohh Roma.. these fuckers are the end of us. .did you try pilsner? :D
oh men are you going to travel here in future 5 years? :D your daughter will sure love the pigs head with pilsner ..and you should upload that roma story on YT :D
I know this is not the place for lenghty considerations on sociological topics, but having a lot of experience in South Eastern Europe (where most Roma live) I want to say that it is not "the Roma" who are the problem. Many Roma families are well integrated, quite normal citizens of where they live. The issue is, as an outsider, you do not get aware of those. You get specifically aware of those who display inacceptable behaviour, e.g. pickpocketing or organised begging. Again, those that you see are at the lowest level of organised crime hierarchies, they are victims themselves, usually being forced by their big bosses to do what they do. But again, there are many Roma who live a decent live by the standards of overall society. - B.t.w. when you put out that silicone ring with your sharp needle, I really whinced, knowing what would happen...
Those obviously were the not so well integrated ones. May I ask, in what city did this happen? In day time? Night? Did you complain to the police? (Because that was a proper felony then, not a minor case.)
those stories... and after that people are affraid to come and visit. Anyway you're welcome to visit Cracow. People are smiling here
thank you patrons and AVE, love these videos
Being a college student, going for diesel technology (which includes heavy equipment) I think this is the first video of yours I've 100% completely understood. But, nonetheless, I watch all of your videos.
Would you be interested in tearing down a 18 speed transmission from a semi truck? We could do 10 or 13 speed.
the facory where i work we make all the steel/bronze parts. Here in switzerland
you nailed it. I have wanted to look in one of these for years.
A hydrostatic Trans on a tractor has two of those pumps one drives the other. Thanks for the great video
"She who must be obeyed" One of the best lines from Rumpole of the Bailey. Sir, you may have an "Empire of dirt" but I own an "accumulation of clutter".
You are all fucking welcome.
Thank you ...so ....much
I am just waiting for those 'special' videos the Patrons were promised.
Thank you, Patrons :)
I worked in a man lift factory, the various units manufactured all used these pumps for propulsion. They used the variable flow to change the speed of the units, they had high & low speeds. The bigger machines used a pump that weighted a couple hundred pounds and was ran by a 4 cylinder engine. The hydraulic plumbing was complicated to say the least.
I did aircraft hydraulics in the Army, thanks for posting, brought a smile to my face.
hey mate, does each pistion fit to a specific cylinder ? (because of the clearance? )
You should Always install the piston into the sands cylinder in the rotating group because they wear together.
Same*
AvE is fcking brilliant, I cannot stop watching his vid yo's...
You are my favorite channel. Every vid is a treat, thank you.
Thank you to the patrons... I am broke as s*** right now and I really appreciate you guys putting up the money so this dude does the more videos
Try 9k when you need one now. I spent 3 days in mud up to my dangle berries replacing one because my hands managed to fuck it 9 ways from Sunday.
Czech republic's called Czechia now! :D
when your visiting and spending tourist cash by the barrel load you can call it what you like, and once Putin marches across the border again it will be part of a new CCCP. mk2.
Yeah. So the USA is called murka now.AND ?
I always think of Fastvakia with Slovakia.
Great vid, love the look at a mechanic's wet dream, 'La Pump Guts in Oil'. Man, you could make a seriously mean log splitter with variable power control with this pump!
I am very glad to be one of your patreons, consider me a life long member for all you have taught me!!
What exactly have you been working with? Just curious since you know a lot about "everything" :)
LOVE THIS CHANNEL!!!!
Very helpful video! I’m a first year plant mechanic and helped me with a pump I’ve had to pull apart thanks!
You're videos are worth every penny dude. Keep 'em coming
So...how do I hook up an oscilloscope on this thing?
Use a microphone and some duct tape.
you get a USB to 1/2" hose adapter from Euronics
I'm retired,but I wish you were a lecturer at my collage,good job
I bend wrenches and bust knuckles for a living.
Your channel is my new favorite. Funnier than watching Archer, and I actually learn stuff.
Thank you patreons. You are a real human bean, and a real hero.
Make a "Release the Shmoo" shirt :D
sauer danfoss... Danfoss is a danish company, sauer-danfoss is an American offshoot I believe.
no, sauer is a german Company that got a new name and is now called danfoss
how come danfoss can make something like that /\ but can't make a domestic heating pump that lasts more than two years?
As far as I know Danfoss took over/bought Sauer and changed the name to Danfoss.
It must be that, I have a Danfoss furnace oil pump.
That same company bought Sundstrand.
I like your style, you're a damn smart man. Congratulations!
Dude, I am reaaaly digging all these hydraulic video's. Crystalclear explanation, and I can just hear this is where your heart is.
I think you just found your niche man. Never let go of it!
I am a patron. You may praise me now.
Praise be to you!
Praise be to you, oh mighty Johnson!
Are you still one?
How about a Blow Out Preventer??? Wonder what one of those looks like?
You mean a "pressure relief valve"?
Nope. They are used on Oil Rigs. Really cool.
Ok, but what does that have to do with this pump?
They share some common characteristics.
Beauty fades, but a dirty mind is a joy for ever.
Patrons, you are heroes. Thank you :D
And the great thing is that the same device is also used as a hydraulic MOTOR when the flow instead pushes the pistons through the cylinders. Hydraulic systems are pretty interesting.
I remember taking one of these apart since hydraulic winches on ships use them. I never knew about the holes in the slippers/shoes that allow hydraulic fluid to form a film between the slippers and the plate. Great info
Where's the rest of this video?
Serious question: What percentage of your adult life have you reeked of gear lube and/or hydraulic fluid
Follow-up, what other percentage have you reeked of the alcee-haul? :P
Its all in my beard right now......
Maybe he has his own fragrance range? Eau de ATF.
Personally I prefer the fragrance of dark sulfur cutting oils.
To me it's the smell of "time to get shit done".
The only other smell that comes close is that of a welding arc.
Alcohol Tobacco & Firearms? My three favourite smells.
Great video. I recollected the maxim from Hydraulics 101(~1991): "Pressure is the resistance to flow." I was "WAVETUBE84", then. I forget exactly, was practically a decade ago. There aren't many gibs that are so poetic... you gotta real kick out of that one. ...Another thing or two: (1) If a hydraulic circuit locks up, either a pressure relief valve opens, or something blows. If not, the hydraulic pump can seize the Powerplant. Therefor, the input shaft on yir CSDs and hydraulic pumps are turned undersize (necked down): So the shaft snaps, rather than locking up yir aircraft motor. On yir automobiles, the shaft is pressed into the drive pulley. No splines or woodruff keys. The 1980s Buick Grand National had POWER BRAKES! Not "vacuum assisted" brakes. A line was plumbed off of the POWER STEERING PUMP, which actuated the brake servo. "But why Master?" "Aaaahhh... Grasshopper, because the turbocharger pressurized the intake manifold...no vacuum to 'assist'."
im currently working on a bachelors in heavy equipment mechanics. these hydraulic pumps are the heart of almost every big machine out there. and Btw it is strongly recommended (woopdedo) to wear gloves when handling hydraulic oil as it i made to be absorbed by permeable materials.... such as skin.
RELEASE THE SCHMOOO
So basically a gatling gun for fluid.
No discharge
Variable displacement piston pumps are one of the coolest things ever!
THANK YOU, PATRONS! I shall be amongst you in time~
You have done an amazing video and got very basic knowledge for my final year project. Hats off sir! Vamos! Muchas Gracias!
Interesting note: the hydraulic pump actually makes no power! , it is a mechanical power converter.
interesting note: Everything is just a power converter.
+djteac
Us humans are so picky about how we get our power.
yeah I think it is true. from mechanical power from electric/diesel power to hydraulic power
..Yeah....pretty much...converts one type of motion into another.....
Nothing has ever made power!
Would be great fun to whack a big old lever onto that swash plate and put it in something that goes fast that you can ride.
flow is way to low for that. this pump could run a big press nicely though...
Air force bomblifts run on hydro piston pump just like this one and we make the competition loading lifts move pretty quick.
Yeah it would be a higher volume lower pressure pump that you would want but I'm just getting excited about moving that swash plate by hand.
ç0xxx
That's the idea of a skid steer loader transmission, a hand operated swash plate pump to control the speed of the motor for each set of wheels.
Right on. Not only did I learn what in the hell a swashplate does, I got my mind blown on how a variable displacement pump could possibly exist. At 8:20 my brain-bits were making connections like crazy.
thankyus patrons! AvE is the most entertaining, humble, informative, real, racially sensitive, and kid friendly learning channel in the world. For real, I would let any kid watch this in hopes they would be entertained enough and learn to enjoy learning some amazing things that could spark an interest and a need to learn more. Thank you all.
I am only Slovakian guy here??? yes I now we are small country just 5,5 mil citizens #feelsbadman
Nope
brightest yellow schmoo i ever seen
Wow man I'm surprised to see you on this side of CZcams
+Anubis Vex
-Us humans are so picky about how and when we get our power.- Hang on a minute. This isn't the right thread.
truly a fine video. And I was about to leave a comment saying how 13 minutes seems awfully short when I learnt there is to be a part time 2 ☺
avE, I must compliment you for your knowledge, and language art skills. I found you to be a confident well organised speaker, and was motivated by hearing your verbal teaching techniques. You did a very nice job blending terms of mechanical engineering with different, but catchy offbeat variances of unrelated sidebar conveyance of your passing thoughts. I was impressed by your well above average IQ.
Groovy! Rated in French, built in normal.
I bet you do product placement all the time and take the patrons money to buy hair and skin care products.
Sir. You deserve a bigger stage... Salute you for your knowledge and wit.
One of your best posts. It easy to see that clean fluid is a must in that motor,
Holy shit! When I worked for CAT rental company, we had something similar in our warehouse. I played with it like it was just a stupid toy. I understood what it was and how they worked, however I didn't know how pricey they were. Thank you for the in depth explanation, I really enjoyed this video and look forward to the next one!
I have been to the rebuild factories for these things, quite cool to watch them measure the piston caps and press and squeeze them into place down to a couple thousands.
Talked about these back in undergrad, good to see the goody bits for once
Same setup for the drive pumps on a skid steer.. hammered all the smoooge out of one once!
Happened those nice swivel heads on the Pistons! Hammered them hard enough that they were jambed to the point of they were probably fused together.
Learned to not do that again!