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Centrifugal water pump

by ReneeCelDesign Jun 28, 2014
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Where are you selling your improved version?

Looking from the files and also from your photos assembly... is the impeller backwards?
I mean, should the concave part of the blade be facing forward during the rotation?

Otherwise very good design, I plan to use it on feeding a jet engine

what do you think can this water jet run a boat like that:
I have two prop drived speed boats and want something really different.
For I scaled the speed boat from wersy up too 65cm length with the stock width and it looks great that way.
Maybe modding the water jet a bit to fit a 2822 or 2826 motor, or should I use two of these little engines?

...Thank u for sharing...

Do you have a link to the boat shown in the photos?

how wide is the motor shaft?

Is there an assembly file somewhre?

I am real sorry, but where does the cushion go?


Im building a garden sentry which will spray water on vermin. The sentry needs a spray range of around 10 meters. I will be able to tilt it 60 degrees and its standing 150 cm about ground level. I have calculated the needed velocity but water + air flow/resistance calculations arent my strongest side so im going for approx calculation and testing.

Currently its driven by a garden house but im thinking about accelerating the water using a design and motor simlar to yours (but 110 w). So im wondering, is your design able to shoot water for around 5 meters (pehaps the boat have been bouncing in waves and you´ve got an idea of how far it sprays). Thanks!

Realistically, it isn't that likely, I would guess. At 5 m of head, you would get exit velocity through a nozzle of about 9.9 m/s if the nozzle is ideal. Angled at 45 degrees, you're looking at a horizontal range of 11.32 m if the nozzle (and motor, remember) are 1.5 m above the ground. That leaves precious little room for any inefficiencies or air resistance, etc...

Hi, I modelled this using catia v5 I will try to upload the cad files soon.

The main problem I found with this pump is keeping the motor cool. The pump puts out good force although I have designed myself a new and much improved version that I would like to sell at a very reasonable price.

I would like to thank everyone for their comments.

So, how much do you charge for your new 3d model?

I'm trying to integrate this into a printable boat I'm designing, but merging a mesh with cad parts is a struggle, any chance you could upload the cad files?

I printed one of these and I have to say it is very well engineered. Thank you!