I Made Dual Impeller Pump [3D Printed] - Will it work? 

Did you find any problem with my design? 😅

The devil is in the details. If you look back at the rendering video the veins push the water along the outside walls of the housing, not between the two impellers. In addition the two impellers “seal” against each other in the middle. This is what causes the pumping action. AVE did a good video on a hydraulic pump using this principle a while back. I think getting a good seal will be your biggest is issue. A jet ski impeller type pump might work better for 3D printing as I feel that the sealing is less important.

I think you designed a pump that mixes and froths at the same time it moves liquid. I think it would be exciting to see a 3d printed twin screw pump or 3d printed gerotor pump.

I believe you should fill the pump with water before starting it to avoid cavitation.

Looks good! I would try a bearing on tube design next time. You can even make it work with a stepper motor.

Could you please share a link to get the electric screwdriver ?

Next time, try a peristaltic pump; that way you won't have to water proof anything or detail with the acrylic. You can just use a regular hose, some bearings and a motor.

Wonderful pumps! I like mechanisms working with water

For me it seems like you mix two different types of pumps. Your first impellers seem similar to vacuum pump's impellers basing on different pressures regions, but they don't seal each other and distances from body are to big to work in this way. As traditional pump it may work way batter if distances from body are smaller

Very professional work, Thanks my friend ♥️♥️♥️♥️♥️♥️♥️

U dnt need to minimize the gaps btwn shell and propeller in those centrifugal pumps but u need in gear pumps. You easily try to make one stage cent. Pump. Than add it more to increase stage. To upgrade

Deserves more views

It was more of an inline pump i.e. it would work better submerged to help eliminate the air from the system. Great design though. Keep up the good work.

How do you make the shapes and how do you save it on the mice card thank you from Brian

Ma shaa Allah! Good job friend!👍👍👍

you have the body of a lobe pump but the impellers of a centrifugal pump, that is the issue that you have. i suggest trying to replicate the lobe pump since it's probably easier to print the lobes than the housing

You need to make the base bigger and recess the clear in a little do it will seal better since not using a rubber seal or gasket maker...

Надо было сравнить с ротором, как в обычном кулачковом насосе. Он будет производительнее.

Make the blades longer and flexible. This will get the tips of the blades touching the sides and after a bit the blades will wear for the perfect seal . Use a flexible filament.

A few things to note: * The cover needs better sealing. You attempted with the 2nd and 3rd impellers by putting some silicon on it, but that doesn't fully seal. You need to have a channel and put like a rubber seal in the grove. You can get these in a spool to cut to length * The clearance between impeller and housing is too much. Ideally you want a half mm or less. The closer the impeller is to the housing, the better. The gap allows water and air to move "around" the impeller instead of being forced "through" the impeller path * Most dual impellers work more efficiently if they are lined up, where the fins are almost touching. You have a lot of space between the fins as they rotate, allowing air/water to more easily flow around them instead of being pushed by them. The 3 designs you showed here have some promises. The first one doesn't seem to be the best, tho. Align the fins closer to each, maybe 1 tooth apart, decrease the clearance of the housing & impellers, use a better seal, and repeat your tests. You'll find a much different result afterwards.

1st design is the best, but assembled completely wrong. Impellers' hands must touch each other all the time. They are designed to be that way. Also there should not be gaps between side walls, front and back lids and the impellers - gaps gives the way for fluid to escape. And speed is too fast. You should make reductor to lower impellers rotation speed.

Massallah, very good video , I am your subscriber.

the impellers are supposed to be perfectly lined to each other to force the water out the outlet, the way you have them setup creates a path for the water to flow back between each impeller... during the rotation the volume at outletside is supposed to decrease by rotation intill the impeller passes the outlett. also if you think about it, outlet and inlet sides are equal in this design, there is no difference between them, a pump with a single impeller with this type of impeller has the inlett in the middle on top of the impeller, basicly you have two outlets and no inlets in your design. try that, dual inlett on top, and delete one of your outlets, and align the impellers so the tips of the blades close the gap and forces the water out the outlet.

An impeller pump should take a suction from the center.

You could probably make a cool and unique rc boat engine from this

Hey man, that is a cool 3D printed pump. I also made a 3D printed water pump, the video is on my RU-vid channel. Also my title said, (will it work?) at the end as well😂 Nice video👍

I always thought the air intake for an impeller had to be at the centre of the impeller.

Try to align the blades. You'll have more pumping pressure.

of course: Ze bolt cool video

It would work much better if you put it fully underwater, obviously you can’t because the motor is not sealed

What is a impeller pump?

I think you completely misunderstood function of pumps! You have a gear pump design, it should use big teeth, the liquid is pumped by the teeth along the outside perimeters, point where the gears/teeth touch each other should be watertight! Using impellers on gear pump is counterproductive, either use gears on gear pump, or build an impeller pump with impeller!

Since it is limited to one motor, I think a centrifugal pump design is more efficient.

Very interesting

Out of interest, why did you mirror the cogs on the first design instead of having them in parallel?

now make this a jetski motor!!!

Wow I love it

Where do you live ???

Impeller have to make contact with walls and have to touch transparent plate, it might work!

This is a unique idea but you don't understand do the fluid dynamics behind an impeller pump which is why this is working horribly impeller pumps work by pulling in water forwards into the impeller and accelerating it outwards against the body of the pump which has a curved shape that causes the water to accelerate out words expelling it from the pump look at a turbocharger

Super

💣

Every Pump and Impeller will have problems to pump Water when it have some Air or Airbubbles inside 😉

It just mixes water inside and small bits getting out. pump with this motor should be many times more effective.

Hi from Uzbekistan ✋

❤️

Wow

Gap between impeller and housing is too much.

You can't have the gears on the inside and your impellors need to go all the way to the side wall. None of these impellors can really generate any kind of compression.

🔥💕👌👍

dude... just seal this acrylic... every single thing u do leak...

Jaxongir meni card holderim qani

im a bit late but hi

You are using it backwards!

love to see muslims in the 3d printing comunnity

very bad design. better than a conventional centrifugal, or gear like in an oil pump.

Yee! I'm the first one!