<VV> Alternate Fans?

[jvhroberts at aol.com]

 Just a plain, really well designed fan is the answer here. Preferably without the mule drive...

 

John Roberts
 

 

-----Original Message-----
From: Matt Nall <patiomatt at aol.com>
To: virtualvairs <virtualvairs at corvair.org>
Sent: Tue, Mar 12, 2013 9:18 pm
Subject: Re: <VV> Alternate Fans?





Wouldn't a clutch fan work better ?
It would only catch when the fan speed is less than the belt speed and 
would free wheel on deceleration...

Just a thought
Rodney Sampson
HACOA


=============================================================================


 Rodney....  common "clutch fans" do not work that way....  three common types


1  Cheap...centrifugal...  clutch releases at higher  rpm...  as when car is 
going 20 mph  or more....  not good for trucks / large cars....  they will allow 
overheating on hills.


2  Thermo  ... these are the normal....  only engage when the AIR going thru 
them reaches a set temp..IE  180f   Our fans PUSH COOL AIR


3  Electro-mechanical      Too big and bulky...


  Several years ago...  We tested an "Over-running clutch"  allowing the fan to 
freewheel  during downshifts /engine decel...


Sadly way too expensive... but worked fine..





Matt Nall
Charleston, Oregon
http://tinyurl.com/The-Corvair-Patio

http://tinyurl.com/Matts-Tech-Pages










 
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