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Old 08-24-2007, 05:19 PM
sykavy sykavy is offline
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Join Date: Apr 2007
Posts: 184
Quote:
Originally Posted by nali2001 View Post
Hi Sykavy,
Well I don't really know if the solenoid piston design has significant advantages over the 'normal' switched reluctance motor design. On the one hand one might think there is better flux interactions since the coil encapsulates the piston core. But on the other hand you must have some support system to guide the piston, which results in noise, losses and wear.

There are so many different types of Reluctance motor design out there you wont' believe. Here for example is an interesting addition:
http://www.jstage.jst.go.jp/article/...126/4/385/_pdf

Also another method for reducing the air gap size is having 'slots' in the stator and rotor core elements, so that the rotating parts kind of interlock or 'mix' with each other.
Like this:
http://home.planet.nl/~sintt000/SlotRotor/1.jpg
http://home.planet.nl/~sintt000/SlotRotor/2.jpg
http://home.planet.nl/~sintt000/SlotRotor/3.jpg

Steven
Hi Steve
You know I was thinking of the slot idea on my own, but I didn't know how to explain it.
What would be the air gap around these slots be?

Plus it looks a lot more complicated to make than just a simple flat air gap. You were saying that one would need a professional die-cast for Peter's air gap but wouldnt slots make it even more complicated?

What if the air gap was filled by a metal/plastic mixed plate. I mean iron filings mix with apoxy and then slowly shaved down till the perfect air gap was reached.
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