[ausev] Progress so far on 91 MR2 conversion, and a question

[John Flores-McLaughlin]

Did you ever figure out why your motor blew?

On Mon, Feb 9, 2009 at 3:18 PM, Brian Lasseter
<blasseter.cmpe01 at gtalumni.org> wrote:
> A "small 12VDC" motor will never drive your A/C compressor.  Aaron
> Choate, Mark Farver, and Chris Robison could give you more
> information, but we basically tried to hook up a 3HP 144VDC motor to
> my A/C compressor, and it burned out the motor (after working for a
> few minutes).
>
> Mark Farver also tried a smaller high voltage DC motor on his MR2 A/C
> compressor to disappointing results.  You would need at least a 3HP
> high voltage motor to make it work.
>
> I ended up buying a Masterflux high voltage DC compressor
> http://www.masterflux.com/products/sierra/  The Masterflux compressor
> is reliable, and works great.  I've had mine for 6 months or so now.
> They are a bit pricey though since they are essentially selling a
> tuned scroll compressor, a high voltage three phase electric motor,
> and a high voltage motor controller together in a kit.
>
> If you email Aaron Choate... he's a distributor for Masterflux and can
> quote you recent prices.  (Or you could talk to him at the AustinEV
> meeting.)
>
>
> TTFN,
> Brian "Lasso" Lasseter
>
> "No Sane man will dance."   -Cicero (106-43 B.C.)
>
>
>
> On Mon, Feb 9, 2009 at 7:49 AM, William Gooch <goochb at alum.mit.edu> wrote:
>> The question I have is whether anyone can recommend a good choice for a
>> small 12V DC motor to drive the AC compressor.  What RPM range is good to
>> use for that, etc?  I'm thinking of directly coupling that motor shaft to
>> the compressor shaft, and may locate both in the small cargo area up front,
>> to shorten the AC coolant lines (the heat exchanger is right in the front of
>> the car).  Thanks!
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