How does a gear pump work?

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?

[dwerg]

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.

[levihuffman]

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!

[AlexandarHullRichter]

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.

[henrychan]

“How inefficient would you like to make your pump?”
“Yes”

[Drefar]

He sounds like he is high on alcoholic drinks and has a full mouth of mint tablets...

[adriansue]

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, .

[nayfenwhen_]

4 minutes ago I never even heard of a gear pump. But now I know how they work

[SergeyGagin]

Круто! Был уверен, что жидкость в таких насосах движется в направлении, обратном показанному. Век живи - век учись! )) Спасибо за видео!

[Ozzah]

Great video. Thanks for the info Mr Walken!

[gabrielkovac]

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!

[GeneralChangFromDanang]

Wow, you learn something new every day. I always thought the direction of flow would've been the opposite.

[dinkoblazek]

Amazing video. Well explained and great animations. Keep up the good work!

[lolik_]

I am Russian. The video is very interesting and informative. This is the first time I hear about such a pump

[fernandolimavicente]

This is how vw air-cooled oil pump works, isn't it? Awesome video btw!!

[justinkendollrozinek]

Very unique accent my dude I'll probably click on another one of your videos

[taOGrimace]

Me @ 3am: "I'm gonna sleep..."
YouTube Algorithm: "Gear Pumps are neat. Look."

[Ciorram]

I feel like the Voice over guy might be able to do a really convincing Christopher Walken impression.

[granthenderson]

Could you please do more on external gear pumps and hydraulics in general.

[adamsmithelec]

Christopher Walken with the voiceover here. Sterling work

[TheOnlyHardestR]

I feel like I'm being both scolded and taught 😂