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Date: Thu, 24 Feb 2005 10:12:27 -0600
From: Jim Sower <canarder@frontiernet.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: E-shaft permanent magnet alternator
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<... unit would include a replacement drive pulley, for the eccentric 
shaft ...>
Could you simplify manufacturing by:
Manufacture a flange that holds the rotor that sandwiches between the 
pulley and E-shaft hub
Manufacture the rotors with generic mounting holes that mate to [the aft 
side of] the flange
Perhaps provide a variety of pulleys that mate to the flange that the 
rotor mounts to

This would allow these folks to sell a single unit to Rotary, Soob, V-6, 
etc. folks but with type specific flanges (cheap stamped out parts) to 
adapt the rotor to the application.  If there were flanges available 
with various offsets, that might give folks some configuration flexibility.

Hub-flange could be easily manufactured to fit any application, ALL of 
the various capacity alternators would be manufactured to mate to the 
generic flange bolt pattern.  Pulleys of various diameters and offsets 
could be offered to drive other accessories, or individuals could 
fabricate their own pulleys to mate to the flange.

I'll have to take a closer look at my stuff to get a better picture ... 
Jim S.


WRJJRS@aol.com wrote:

> In a message dated 2/23/2005 10:22:52 PM Pacific Standard Time, 
> lendich@optusnet.com.au writes:
>
>     Bill,
>     Is the replacement pulley - same size as the Mazda pulley or
>     bigger to slow down the pump OR either.
>     George (down under)
>
> George,
>  Depends, we have been talking about a E - SHAFT mounted alternator in 
> this thread. This unit would include a replacement drive pulley, for 
> the excentric shaft. This doesn't require a belt to run itself. The 
> pulley would run other DRIVEN items like the waterpump. We can, and 
> probably will, get quotes for a unit that replaces the stock Mazda 
> waterpump. That unit could be under or over driven. Most of 
> the Racemate pump/alternator units are UNDER-driven since they are 
> intended for racing level high RPMs. Since the pulley is manufactured 
> by them various ratios would be possible.
> Bill