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Re: [T3] Modern a/c - compressor nomenclature


<x-charset iso-8859-1>Hello-

> Very interesting thread about modern A/C equipment.
> Does anybody know in which rpm ranges those Sanden compressors are 
designed 
> to work?

Well, to overanalyze the problem, look at www.sanden.com and stare at 
the jillion charts they have.

The simple answer, though, is "regular rev ranges," i.e. semi-normalish 
setups work fine.


> Wouldn't it be possible to attach the compressor directly to the 
crankshaft 
> pulley with some kind of flexplate or any other flexible coupling? 
Will the 
> rpm be sufficient for "enough pumping"?

The rpm is sufficient, but the fabrication, installation, and 
maintenance (you have to charge the thing and add oil) would be a PAIN 
and a half!!!


> I imagine the compressor mounted on some rigid support INSIDE the air 
duct 
> opening, before where the air bellow is mounted, and connected to the 
crank 
> with some kind of flexible joint, so that the air flow isn't much 
restricted 
> and the balance of the crank isn't affected.
> Then the pipes/hoses to and from the compressor could be routed up 
through 
> the air plenum and perfectly sealed, so that hot air from the engine 
> compartment never will leak through.

An easier task would be to mount it like "normal" then make a sheet 
metal shroud kinda like the one for the gen belt around the A/C belt.


> A wild idea, perhaps, but is it a good or bad one? Any thoughts?

It's not a _bad_ idea - I was tossing the same thing around in my head 
for awhile, too!  But, it is certainly a very difficult one.

Oh, and BTW, the Sanden compressors are all reversible, so there is no 
issue of it running counterclockwise (like your setup describes and 
like my T4-in-T3 setup is) verses clockwise (like normal).

Take care,
Shad Laws
LN Engineering
http://www.LNengineering.com

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