<VV> Alternate Fans?

Thu Mar 14 17:27:21 EDT 2013

Perhaps the Tom Knoblauch fan applies? Vertical fan. Aluminum. Similar to a Porch fan with stators... Or, since it exists and has been used successfully, why do you pretend it doesn't exist, John? Well-designed. No mule drive. 

Chuck 

----- Original Message -----

-----Original Message----- 
From: hallgrenn <hallgrenn at aol.com> 
To: jvhroberts <jvhroberts at aol.com>; patiomatt <patiomatt at aol.com>; virtualvairs <virtualvairs at corvair.org> 
Sent: Wed, Mar 13, 2013 1:17 pm 
Subject: Re: <VV> Alternate Fans? 

John, 

All of my LMs came with one. Even had irregular blade spacing for quieter operation. And if they took a bit too much HP at higher than legal speeds, why I was going too fast anyway.:) 

Bob 

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

John Roberts 

-----Original Message----- 
From: jvhroberts <jvhroberts at aol.com> 
To: patiomatt <patiomatt at aol.com>; virtualvairs <virtualvairs at corvair.org> 
Sent: Wed, Mar 13, 2013 9:06 am 
Subject: Re: <VV> Alternate Fans? 

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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