<VV> Corvair Fan

[Ron]

How come it would be easy to design a much better blower when the technical 
expertise of the air mover companies couldn't do it?  I don't know who GM 
had design the Corvair blower but I doubt that GM did it.
RonH

----- Original Message ----- 
From: "John Dozsa" <jdozsa at carr.org>
To: <virtualvairs at corvair.org>
Sent: Saturday, July 09, 2005 3:34 PM
Subject: Re: <VV> Corvair Fan


> 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.
>
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