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Forum Index : Windmills : A bearing assembly

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Storm

Regular Member

Joined: 12/09/2005
Location: Australia
Posts: 43
Posted: 01:23pm 13 Oct 2005
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Whilst walking the dog today I came across a house with some water pumping mills for sale out the front, one was probably 8ft tall with a rotor around 1.5m and a few other smaller ones, all very detailed reproductions of the big farm type mills like loyds, being the inquisitive type I enquired into who made them and generally chatted with the owner explaining to him that I was also very interested in wind power engineering. I was invited into his workshop where he was ballancing his latest rotor (he had already constructed the 4 leg tower complete with a mini ladder etc..) while I told him about your site I also noticed a new system he was beginning to use that saved him alot of time making bearing assemblies from scratch, he uses a water pump from a holden rodeo, I asked him if it had bearings at the front and the back to support the gyro loads, it did although I don't know what it could handle.

He didn't mind if I took a pic so what do you think?.....

 

 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5012
Posted: 01:59am 14 Oct 2005
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I think thats a good idea. The bearings should be able to handle a fair bit, I wouldn't hang a big 2 meter blade off it, but for a 1 meter blade I think it would work fine. A car water pump has to handle a lot of side force from the drive belt, and ever changing engine speeds, so they must be pretty durable.

I like it.

Glenn


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Storm

Regular Member

Joined: 12/09/2005
Location: Australia
Posts: 43
Posted: 02:33am 14 Oct 2005
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get real
Newbie

Joined: 16/12/2020
Location: United States
Posts: 9
Posted: 03:54am 28 Dec 2020
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  Gizmo said  <P>I think thats a good idea. The bearings should be able to handle a fair bit, I wouldn't hang a big 2 meter blade off it, but for a 1 meter blade I think it would work fine. A car water pump has to handle a lot of side force from the drive belt, and ever changing engine speeds, so they must be pretty durable.</P>
<P>I like it.</P>
<P>Glenn</P>


This is what Davep68 said." When F&P stators are connected to a battery, ONLY the current can increase once the terminal voltage has been reached"

How do you hook a F&P up to a battery?



Davep68

Senior Member

Joined: 25/11/2014
Location: New Zealand
Posts: 292
Posted: 07:32pm 20 May 2018
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All I can say is don't try and hack a perfectly good drawing of a star stator, just start from scratch to avoid confusion for others who may come across this post in the future.

Looks like the part you did try to draw in delta mode is correct.

Back to my point about current flow in these F&P stators.

The vast majority from what I can work out on this forum, try to connect these stators via a rectifier to charge batteries. That creates a whole set of problems if you wish to yield the maximum performance from these stators.

When F&P stators are connected to a battery, ONLY the current can increase once the terminal voltage has been reached.
 
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