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post #1 of 5 (permalink) Old 06-12-2011, 08:22 PM Thread Starter
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Induction Equipment

So I'm looking at some Koralia pumps and just wondered if anybody has seen or heard of any inductive in-tank equipment like a water circulation pump, etc. that's designed to remove 'the cord'.

Seems to me it would be possible to put a small inductive motor to a Koralia style unit and have a piece that attaches on the outside of the glass that would hold an electric field to run the device. These things run on low current already and I imagine you could even have some that ran off a small rechargeable battery like this and recharged through the glass.

Anybody have any thoughts on this or am I way off base on how this could work?


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post #2 of 5 (permalink) Old 06-12-2011, 09:01 PM
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I believe these are driven by a magnetic field through the glass:
http://www.google.com/products/catal...ed=0CDwQ8wIwAw

There are many like this
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post #3 of 5 (permalink) Old 06-12-2011, 09:15 PM
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Quote:
Originally Posted by drbotts View Post
These things run on low current already and I imagine you could even have some that ran off a small rechargeable battery like this and recharged through the glass.

Anybody have any thoughts on this or am I way off base on how this could work?
Either you are underestimating the current or overestimating capacities of today's batteries. Even a small pump that's meant to run continuously is not a good choice for batteries. Plus, unless you find a 12VDC pump, you would have to somehow add an inverter to get the 110VAC.

Something like this might work for a low wattage moonlight perhaps.


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post #4 of 5 (permalink) Old 06-13-2011, 10:51 AM Thread Starter
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Quote:
Originally Posted by mordalphus View Post
I believe these are driven by a magnetic field through the glass:
http://www.google.com/products/catal...ed=0CDwQ8wIwAw

There are many like this
These are not cordless. They are controlled by a wireless controller but not without a power cord. I thought the same thing when I was looking at them a while back.

@wasserpest
I see your point on the battery. However, if you had an induction motor in the unit and had an electric field you produced on the other side of the glass then you wouldn't need the battery, you would just need to produce enough electricity to power the size of the motor.
I don't know enough about these to speculate but it seems you could do something like the wireless "power mats" that we are using for cell phones now. You could have a little sticky square you attach to the outside of your tank and your drive motor, just inside at the same point.


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post #5 of 5 (permalink) Old 06-13-2011, 02:48 PM
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The system would have to almost directly copy the Vortech for it to be practical, as the efficiency of inductive power transfer falls through the floor the farther away you get from the power source. The cost and engineering required to get this working effectively would far outweigh the benefit, considering the high efficiency traditional pumps that are currently on the market. Magnetic transfer of mechanical power is more efficient, but Ecotech Marine has that all patented.
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