In a gear pump, the meshing of gears is used to pump fluid. How do external and internal gear pumps work? What problems can occur during gear pump operation?
Gear pumps are actually relatively efficient, work with a high range of different fluids and they have a simple construction and the output is easily controlled. They're overall pretty great.
In the refinery I work in they used a gear pump to pump a slurry of solvent, water and perlite powder (finely crushed volcanic glass). As you can imagine it needed extremely frequent maintenance, the perlite was literally sanding down everything inside the pump. Why they decided to use a gear pump for this slurry in the first place is beyond me, but they finally put in a better suited pump.
@@biggreenblob Yup, despite the properties of progressing cavity pumps being well known where I work, they default to using centrifugal pumps for almost everything. Probably because they're way cheaper. The gear pump I talked about was replaced with a centrifugal pump, it doesn't break all the time anymore, but it isn't theoretically ideal.
I assume English may not be your 1st language so I just wanted to say that I appreciate the effort you go through to make these videos available to those of us that don't speak your or native language you've done great! Thank you!
Thanks. Yes, English is not my first language. My profession is a hydraulic engineer, but I also enjoy doing computer animation. At first I translated the video myself, but it turned out badly for me. Then I turned to a translator and a voiceover, for a small fee they helped me. I do the animation myself, write the text, then the translator makes the translation, then the announcer gives the voiceover. Advertising on UA-cam allows me to recoup my costs. The problem is that I cannot assess the quality of translation and sound.
@@hydraulicandpneumaticsyste3253 well I appreciate the effort I know for a fact that ots not easy and doesn't always come together easly either but with time the process will become more automatic and certainly less difficult you keep at it its great to help people gain a deeper understanding
@@hydraulicandpneumaticsyste3253 If your response is a decent representation of your English than I'd say that it's actually quite good (Even if it's with the use of a translator).
Internal gear pumps are pretty much standard for automotive engine oil distribution. One of the advantages they have (in that application) is that they have no bearings. The inner gear will sit on the front end of the crankshaft, which has its own bearings. The outer gear will free float inside the oil pump housing. The engine oil being moved by the oil pump lubricates everything.
Nope. Oil is distributed across the gears by immersing one of the gears in the oil directly. It is NOT moved by a pump. It is moved around the parts by capillary action between the gears. In other words, the oil is passed from one gear to the next by the fact that it sticks to the gears. When the gear interfaces with the next gear, the contact causes some of the oil to transfer to the other gear.
@@protoborg you might have misread. You're describing the lubrication of a manual transmission. I was talking about the engine, which only has gears in the oil pump and camshaft timing mechanism. Engines are lubricated by pressurized oil from the pump.
Neat explanation it works different than what my 'visual intuition' was expecting. -Fluid flows around the outside of the gears, not pulled through the middle like I would expect a solid object,.
Just wanted to say that I enjoyed the accent (probably because of my Slav origin xD) I enjoyed animation even more and how much important stuff did you mention and explain in very short period of time. Must say that I love people like you!
The animation is correct. It is necessary to correctly understand how the liquid moves in the pump. She moves around the perimeter. Through the place where the teeth of the gears are engaged, the liquid cannot flow, so there is no empty volume. I want to release a short video where this issue will be discussed in more detail.
Hi, I am the author of the channel. English is not my first language, you probably understood that. I write the text, then I ask the translator to translate it into English, then I ask the speaker to voice it. I can’t rate good and bad. If it's not difficult for you, compare two videos: this video and ua-cam.com/video/zwSWHrVBQls/v-deo.html . Where is the best translation and speaker's speech?
@@hydraulicandpneumaticsyste3253 There's nothing bad about either one really, but the one in this video is definitely unique. I spent a lot of time trying to figure out what accent it is. That said, I do personally like the one you linked a lot more.
@@hydraulicandpneumaticsyste3253 I liked the one you linked more. For me it makes it a little bit easier to understand. But then again it all comes down to preference. Both great videos btw
This video is excellent! I’m just getting into hydraulics and this is the most clear explanation I have seen of the operating principle of a gear pump. Does cavitation occur enough for it to be worth studying?
Nice explanation, I always thought they worked the other way around. What I am wondering is: Do the liquids get smashed around and get bubbly and foamy on the output side? Because the moving direction of the gears is exactly opposite to the direction of liquid flow.
The fluid does not flow through the engagement, there is no free volume. Fluid flows around the perimeter. At the moment when the teeth disengage, the volume of the working chamber increases, the liquid from the suction line fills the space between the teeth. Then the gear turns and the liquid is locked in the space between the teeth and the housing. Then the teeth engage and the liquid is squeezed out of the volume between the teeth, it flows into the pressure line.
depends on the viscosity and RPM of the pump. With the right pump, most liquid is pushed away from the teeth and barely moves back to the input. If the viscosity and rpm of the pump are too high the liquid can`t escape that easily and will get compressed by the gearing. This can cause bubbles and foam as we have different pressures and velocities within the fluid.
Excellent 👍 I would like to build a hydraulic press actuated by the pump+motor. Could you please provide the scheme what components are needed and how should the connection looks like? I mean the correct order of components connection. Thank you
Thank you for that wonderful explanation I would like to know more about external hydraulic gear pumps as I'm building a backhoe and don't know what size I should get
Hi thanks for the comments but I don't know much about hydraulic but I'm building a toe able backhoe and could anyone recommend what kind I should buy.the shaft on the engine is 1 inch key shaft but all the pump's I see on line seems to have a smaller and different shaft is there some kind of adaptor I can get that would fit the 1 inch engine shaft and have some kind of universal joint on the other end
I want to know very details about closed loop hydraulic piston pump and also other thing like All types of valves used in gear pump. Hope will find all the details in your channel Thank you
The way you pronounce things sounds like it would go well with intensely flailing hand movements In all honesty though, gotta say your English sounds great. Very informative video too.
So like if you lost access to say bottled water, do you think it would be difficult or even possible to setup a primitive version of that first pump to gather water?
You're working hard against that accent, sir. I assume english may not be your preferred language, yet your grammar is pretty much perfect, and I just want you to know to keep working at it. Great video, great explanation. You've earned this subscriber and like. Cheers!
This looks extremely cool but is it effective? From the animation it all looks like the pump made the flow slightly worse by introducing back splash on the right side. Also there will be a lot of leakage when pump is off...
Gear pumps are efficient and inexpensive and are used in industry. They are used in machine tools, presses, tractors, lifting machines. Perhaps the simulation does not accurately show the fluid flow, since I was pushing the fluid emitter, from which the fluid flows to the pump. In reality, the reason for the movement of the fluid is the pump.
“How inefficient would you like to make your pump?”
“Yes”
It might be energy inefficient, but I bet it can generate massive pressure and probably has really good self priming capabilies.
Gear pumps are actually relatively efficient, work with a high range of different fluids and they have a simple construction and the output is easily controlled. They're overall pretty great.
So what method would be better? These are still being used in cars to this day.
@@neudimensions1320 An engine that runs on batteries.
Most hydraulic pumps and oil pumps are gear type pumps.
In the refinery I work in they used a gear pump to pump a slurry of solvent, water and perlite powder (finely crushed volcanic glass). As you can imagine it needed extremely frequent maintenance, the perlite was literally sanding down everything inside the pump. Why they decided to use a gear pump for this slurry in the first place is beyond me, but they finally put in a better suited pump.
Yes, the gear pump is not well suited for this industry.
Wow yeah slurries containing abrasives are a no-no for gear pumps. A much better choice would be a progressing cavity pump.
@@biggreenblob Yup, despite the properties of progressing cavity pumps being well known where I work, they default to using centrifugal pumps for almost everything. Probably because they're way cheaper. The gear pump I talked about was replaced with a centrifugal pump, it doesn't break all the time anymore, but it isn't theoretically ideal.
You should have just asked them why. You were there everyday.
Diaphragm pump would be better.
I assume English may not be your 1st language so I just wanted to say that I appreciate the effort you go through to make these videos available to those of us that don't speak your or native language you've done great! Thank you!
Thanks. Yes, English is not my first language. My profession is a hydraulic engineer, but I also enjoy doing computer animation. At first I translated the video myself, but it turned out badly for me. Then I turned to a translator and a voiceover, for a small fee they helped me. I do the animation myself, write the text, then the translator makes the translation, then the announcer gives the voiceover. Advertising on UA-cam allows me to recoup my costs. The problem is that I cannot assess the quality of translation and sound.
@@hydraulicandpneumaticsyste3253 well I appreciate the effort I know for a fact that ots not easy and doesn't always come together easly either but with time the process will become more automatic and certainly less difficult you keep at it its great to help people gain a deeper understanding
@@hydraulicandpneumaticsyste3253 Nah i'd say go for the same voice as this
@@snoopah3077 snoop?
@@hydraulicandpneumaticsyste3253 If your response is a decent representation of your English than I'd say that it's actually quite good (Even if it's with the use of a translator).
He sounds like he is high on alcoholic drinks and has a full mouth of mint tablets...
Omg your comment. My sides are hurting
Are we looking at an uncanny valley situation?
@@familyplan979 I think so. Based on none of the other videos from this channel having such interesting narration
😂 you forgot the handfull of benzos
Indeed, while attempting a Christopher Walken impersonation
Internal gear pumps are pretty much standard for automotive engine oil distribution. One of the advantages they have (in that application) is that they have no bearings. The inner gear will sit on the front end of the crankshaft, which has its own bearings. The outer gear will free float inside the oil pump housing. The engine oil being moved by the oil pump lubricates everything.
Yes. Thank you
Nope. Oil is distributed across the gears by immersing one of the gears in the oil directly. It is NOT moved by a pump. It is moved around the parts by capillary action between the gears. In other words, the oil is passed from one gear to the next by the fact that it sticks to the gears. When the gear interfaces with the next gear, the contact causes some of the oil to transfer to the other gear.
@@protoborg you might have misread. You're describing the lubrication of a manual transmission. I was talking about the engine, which only has gears in the oil pump and camshaft timing mechanism. Engines are lubricated by pressurized oil from the pump.
You sound like Christopher walkin!
My thoughts exactly
I was thinking professor Farnsworth
“Hey I’m pumping here”
@@Ral_Sera more like John Wesley Shipp
It's the Chinese attempt at a version of an American accent.
4 minutes ago I never even heard of a gear pump. But now I know how they work
No, you don't. This is completely wrong. Turbulence causes heat. Heat causes burning. Burning causes overheating. Overheating causes machine failure.
Lol these pumps are used for year dumbass
@@protoborg
Thanks Dr Zoidberg.
Neat explanation
it works different than what my 'visual intuition' was expecting.
-Fluid flows around the outside of the gears, not pulled through the middle like I would expect a solid object,.
No it doesn't.
@@protoborgAlright you explain
Great video. Thanks for the info Mr Walken!
Amazing video. Well explained and great animations. Keep up the good work!
Just wanted to say that I enjoyed the accent (probably because of my Slav origin xD) I enjoyed animation even more and how much important stuff did you mention and explain in very short period of time. Must say that I love people like you!
this guy's voice reminds me to my uncle. he was constantly drunk.
Truly great explanation. Kudos !
I feel like the Voice over guy might be able to do a really convincing Christopher Walken impression.
Круто! Был уверен, что жидкость в таких насосах движется в направлении, обратном показанному. Век живи - век учись! )) Спасибо за видео!
Well done. Very well explained. Thank you
Wow, you learn something new every day. I always thought the direction of flow would've been the opposite.
Thats what I thpught too. I wonder if the animation is backwards
The animation is correct. It is necessary to correctly understand how the liquid moves in the pump. She moves around the perimeter. Through the place where the teeth of the gears are engaged, the liquid cannot flow, so there is no empty volume. I want to release a short video where this issue will be discussed in more detail.
Could you please do more on external gear pumps and hydraulics in general.
I am Russian. The video is very interesting and informative. This is the first time I hear about such a pump
Me @ 3am: "I'm gonna sleep..."
UA-cam Algorithm: "Gear Pumps are neat. Look."
Same here! 3:40am
Very unique accent my dude I'll probably click on another one of your videos
Hi, I am the author of the channel. English is not my first language, you probably understood that. I write the text, then I ask the translator to translate it into English, then I ask the speaker to voice it. I can’t rate good and bad. If it's not difficult for you, compare two videos: this video and ua-cam.com/video/zwSWHrVBQls/v-deo.html . Where is the best translation and speaker's speech?
@@hydraulicandpneumaticsyste3253 There's nothing bad about either one really, but the one in this video is definitely unique. I spent a lot of time trying to figure out what accent it is. That said, I do personally like the one you linked a lot more.
@@seananderson7087 Thanks
@@hydraulicandpneumaticsyste3253 I liked the one you linked more. For me it makes it a little bit easier to understand. But then again it all comes down to preference. Both great videos btw
@@finn_7306 Thanks
Always wondered about this! Thank you
Thank you for sharing the knowledge!
I'd never miss a video if it were narrated by this guy!
I feel like I'm being both scolded and taught 😂
the display is good.. but the physical model is not in tolerance... but was a great demo of how things work.. nice job!
This is how vw air-cooled oil pump works, isn't it? Awesome video btw!!
These pumps are used in many applications. In engines, they can pump fuel. In tractors and presses, pump oil in the hydraulic system.
Beautiful information! Thanks.
fluid explanations and animations promoting clear understanding! thanks a lot
I feel like I'm learning how tanks work, I appreciate that.
Great job on the animations - they add a lot! The voiceover was good too, I liked it actually. Sub’d.
Thank you
Podrías esplicar las diferencias entre una bomba L o una bomba H de antemano muchas gracias saludos desde Zitácuaro michoacan mexico
We need Gear pump lore
Very well explained. Thank you
This video is excellent! I’m just getting into hydraulics and this is the most clear explanation I have seen of the operating principle of a gear pump. Does cavitation occur enough for it to be worth studying?
Yes, cavitation occurs. At high fluid speeds (on propeller blades, for example) or when there is resistance in the suction line of pumps
Damn I Love this Man's Voice🔥
Will there be no mechanical damage or damage even if the no-load operation continues for at least 30 minutes?
хорошо, зачем я это смотрю ночью
Так надо.
Same bro, its 3 a.m here
Nice vid. Your voice is like John Wesley Shipp's
Great Animation, thank you!
Does Christopher Walken do informational voiceovers now????
Nice explanation, I always thought they worked the other way around. What I am wondering is: Do the liquids get smashed around and get bubbly and foamy on the output side? Because the moving direction of the gears is exactly opposite to the direction of liquid flow.
The fluid does not flow through the engagement, there is no free volume. Fluid flows around the perimeter. At the moment when the teeth disengage, the volume of the working chamber increases, the liquid from the suction line fills the space between the teeth. Then the gear turns and the liquid is locked in the space between the teeth and the housing. Then the teeth engage and the liquid is squeezed out of the volume between the teeth, it flows into the pressure line.
depends on the viscosity and RPM of the pump. With the right pump, most liquid is pushed away from the teeth and barely moves back to the input. If the viscosity and rpm of the pump are too high the liquid can`t escape that easily and will get compressed by the gearing. This can cause bubbles and foam as we have different pressures and velocities within the fluid.
I have no idea why this was in my feed at 3am but hey it was interesting
Excellent 👍 I would like to build a hydraulic press actuated by the pump+motor. Could you please provide the scheme what components are needed and how should the connection looks like? I mean the correct order of components connection. Thank you
Perhaps this video will be useful to you ua-cam.com/video/JxJUPD-Ajnc/v-deo.html
Thank you for that wonderful explanation I would like to know more about external hydraulic gear pumps as I'm building a backhoe and don't know what size I should get
Hi thanks for the comments but I don't know much about hydraulic but I'm building a toe able backhoe and could anyone recommend what kind I should buy.the shaft on the engine is 1 inch key shaft but all the pump's I see on line seems to have a smaller and different shaft is there some kind of adaptor I can get that would fit the 1 inch engine shaft and have some kind of universal joint on the other end
Блин, а я всегда думал что шестерни в другую сторону вращаются и масло гонит между них)))
I thought that too. I think that is everyone's first impression. Like paper between 2 rollers. But now we can see that would not make sense here.
Great explanation and animation. The narrator sounds like Christopher Walken’s drunk nephew though.
Nice animation!
Very good animation and explanation. Hydraulic pumps on aircraft would be interesting. Thanks
thanks for the comment
I appreciate your video
I want to know very details about closed loop hydraulic piston pump and also other thing like All types of valves used in gear pump.
Hope will find all the details in your channel
Thank you
I want to the Vane type double and single pump how it work and what is the cause of failures
Can it pump up jam? Hello? Hello? Is this thing on?
Christopher Walken with the voiceover here. Sterling work
Who would have thought that he is also well versed in pumps?
What's software to make this video ? Thanks
Great Work
Which software is used for animation
무부하 운전을 최소 30분 이상 지속해도 기계적 파손이나 손상이 없을 까요..?
Lovin your accent brosef. 10/10
If im not mistaken, HD Twin cam engines have the internal version.
I saw gear pump walls were coated with dark coloured coating, what were those coating for? Anti wear?
Yes, quite likely
The way you pronounce things sounds like it would go well with intensely flailing hand movements
In all honesty though, gotta say your English sounds great. Very informative video too.
I WOULD LIKE TO KNOW ABOUT ITUR 4201 GEAR PUMP. I AM HAVING ISSUES WITH IT. IT IS NOT SUCKING.
Nice video, loved the animations too! How did you make those animations? Did you use Blender?
Yes, and cinema 4d
can you make a video on gear pump used in ship?
How would you drive a hydraulic pump with a magnetic transmission?
이런거 20년동안 연구하고 지내는데 성공은 가까이 왔는데 도전에는 비용때문에 포기 했네요 저도 상당히 좋아하는부분인데 이런거 완성하면대박인뜻^^
Very informative 👏
Thank you
How did I find myself in this part of UA-cam at 1am
Big fan sir...
Thanks! Useful information! I always wonder how pumps worked. Ignore the hatters you sound fine brother!
I have a ford ranger with an electric pump to lift the bed and let it down how do I adjust it to let the bed down easy. It comes down to fast.
So like if you lost access to say bottled water, do you think it would be difficult or even possible to setup a primitive version of that first pump to gather water?
Your probably better off making a bucket of some sort
Thank you 🇱🇾
Very good friend 👏👏👏👏
I guess that beer really hits.
Please Can u explain thé process for hydraulique pump for IMR Rakovika tractor 2004
You're working hard against that accent, sir. I assume english may not be your preferred language, yet your grammar is pretty much perfect, and I just want you to know to keep working at it. Great video, great explanation. You've earned this subscriber and like. Cheers!
Thank you
"The housing of the pump.... *Oh hi Mark* "
Iwould like to know how aminicooper hydraulic pump works
Thanks Gru
Good call on Christopher Walken.
I was thinking of the guy the narrated how a "Plumbus" was made on Rick and Morty
Nice animation.,👌
Thanks
I would like to know more about internal gear pump
I still cant brain how they prevent the oil from going past the flat side of the gear? Must be some really crazy tolerance?
Can you please share knowledge about the power steering pumps function and failures causing whining noise and other issues
I want to make a video - "How does power steering work in cars?"
That is quite a peculiar accent but I appreciate the great animation
This is good lecturing...
Thanks
I would like to see a long type gear pump with the spiral gears.
Almost like a scroll compressor?
Well done
Nice video
I m a mechanical engineer
But I want to setup my own machine
To start making oil pum for tractors
I think mayb you can help me
A very creative idea. 💛
I look forward to seeing your designs. Congratulations on your journey forward 💪🤝
Thanks
What about gear pumps that are not a closed circuit or gravity fed
What pump turns the easiest???
This looks extremely cool but is it effective?
From the animation it all looks like the pump made the flow slightly worse by introducing back splash on the right side.
Also there will be a lot of leakage when pump is off...
Duh the pump actually made liquid slower rather than pumping it up...
Gear pumps are efficient and inexpensive and are used in industry. They are used in machine tools, presses, tractors, lifting machines. Perhaps the simulation does not accurately show the fluid flow, since I was pushing the fluid emitter, from which the fluid flows to the pump. In reality, the reason for the movement of the fluid is the pump.
@@hydraulicandpneumaticsyste3253 ok
The Narrator sounds like a Russian Christopher Walken.
Tommy Wiseau's really branching out.
A gear pump is usually best used for heavy density liquids such as caustic soda, molasses,etc.
your gears geometry intersects, not to mention, doesn't look like a involute connection. need any help with that?
I drew a new version of the gears for a short video. This video is not ready yet.