A new fan dezign idia

[The Coolest]

As we all know the place on the heatsink that doesn't get the best cooling is right above the core, and I thought of an idia:
Why not using a fan ran by a megnetic strip on the frame and small magnets on the fans blades, that way the axe of the fan can be smaller, the blades larger and get better cooling of the hot spot?
What do you think?

[The Overclocker]

i think you would be better of usiong a cage fan or a thermo engine

[Szech]

I think they would look really cool, but I imagine that it would be harder to manufacture, since the motor has to be built around the center where the fan blades go. Which would be a higher cost to the consumer. I also think that the problem with the heatsink's hot center can be alleviated with good heatsink design. If you look at the Globalwin FOP, the center has fins, then the outside has pins. I think the logic behind this is that the heat will be drawn out of the center of the fins, and to the edge of the fin, which is still under the blades of the fan. And the Swiftech MC462-A has that huge heat spreading copper base, which draws more heat to the outside pins, which are covered by the fan's blades.

I thought about this problem before too, and what I thought about doing (and it is still a pipe dream :) ) is to get a geared motor, and epoxy a small gear on the center of a fan. Since the gear is smaller than the motor, you have more space for the blades. And it'd look pretty cool too :).

[JigPu]

Nope.... even if you managed to put the motor around the blades (I've always wanted to see a fan like that.....), the blades would still have to have a center point where the blade is basically rotated 180 degrees. Near that center point, you will have to bring down the angle of the blades, and at the center, they would have to be flat (that way, all the blades can attach to the center). It isn't the axle that's the problem, it's the reversing the blade direction at the center....

Did I make any sense, or did I just confuze you all??
JigPu

[William]

take two fans and jut them against each other and problem solved!

[JetMech]

You're trying to form a tornado. Produce it in a visible fluid like water then duplicate it over the chip. Then watch the the fins tear the thing apart. Darn I hate it when that happens:D

[CrackedSKull]

just use a blower.