<VV> Fan design

[ScottyGrover at aol.com]

In a message dated 8/9/2007 9:27:58 A.M. Pacific Daylight Time,  
zanebrock at bellsouth.net writes:

May I  suggest looking at the fans inside current turbo units. A lot of  R&D
has gone into maximum intake with minimum back pressure. Antique  centrifugal
fans have straight vanes and look almost identical to Corvair  fans. Modern
turbocharger fans have a curved leading edge at the center of  the fan that
straighten out towards the outer edge. Page 65 of Corky Bell's  book
Supercharged has a perfect example.  



Regards,



Zane  Brock

zanebrock at bellsouth.net



Modern centrifugal fans designed for HVAC work have had forward-curved or  
backward-inclined blower wheels for the last 45 years or so; fans designed for  
dust collectors where they are handling solids with the air have radial wheels 
 so they don't get clogged up with stuff.
 
Scotty from Hollyweird



************************************** Get a sneak peek of the all-new AOL at 
http://discover.aol.com/memed/aolcom30tour