<VV> Corvair Fan

[John Dozsa]

Anyone out there in an industrial or university setting with Unigraphics
solid modeling software?  It shouldn't be too difficult to design a much
improved centrifugal blower.  Same for turning the design into a lost
wax investment mold.  Anyone using Solid Works or Pro Engineer?  Less
capable design software but still likely up to the job.

John  


> Subject: <VV> Corvair Fan
> Date: Sat, 09 Jul 2005 13:40:22 -0400
> From: Dale Dewald <dkdewald at pasty.net>
> To: virtualvairs at corvair.org
> 
> Hello folks,
> 
> Based on my limited understanding of fluid flow, it is clear to me that a
> standard automotive radiator fan operates somewhat differently than the
> Corvair "fan."  The Corvair unit is a centrifugal blower, and has more in
> common with the blower in, say, a forced warm air furnace (which blows
> through ductwork--like the Corvair engine).  It is no surprise to me that
> attempts to use electric radiator fans end in failure; fans are not blowers.
> 
> I think that significant improvements could be made in the efficiency of
> the Corvair blower, particularly the late magnesium style.  In my mind the
> ideal blower would be modeled after the early steel curved fin impeller but
> molded from fiber reinforced plastic.  This would be the minimum starting
> point for making an electric motor powered Corvair cooling system.
> 
> Has anyone considered using a hydraulic fan/blower drive as done on heavy
> construction and agricultural equipment?  Just a thought.
> 
> Dale Dewald
> Hancock, MI
> 
> At 10:04 PM 7/8/05 -0400, JVHRoberts wrote:
> >I think we may need to dig deeper here. The Austin fan doesn't make much
> >pressure compared to the Corvair fan, so there's something else going on
> >here
> >that we're missing. I am CERTAIN you can't just stick an Austin fan in a
> >vertical housing and get cooling as good as a Corvair fan. Not even close.