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09-21-15, 01:58 PM
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Vapor Compression Goon
Join Date: Mar 2013
Location: Portland, OR
Posts: 63
Thanks: 11
Thanked 22 Times in 11 Posts
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Mini Brushless DC Compressor
A friend of mine recently acquired a small brushless DC compressor for me to work with. He would like to develop some mobile cooling devices for a teardrop trailer he is planning. I was going to build a small air to air cooling system, but with the temperature dropping lately, and the relative humidity rising, I'm going after a dehumidifier for now.
Look at the pics; isn't it cute!?  It's a rotary compressor, 2.7cc, 1700-2900 RPM, 50mL oil, 12VDC Other models are available which have a high speed of 6000 RPM, and other voltages as well. eBay listing for 12VDC Refrigeration Compressor - Brushless DC I've had an interesting time checking and changing the oil in the compressor. Displacing/burping the air is the biggest issue. I utilize a large syringe and needle, along with a very thin tube attached to the needle, for the job. Oil migration is an issue, I'm sure. I'm running a capillary tube system right now. It is too long, so I'll be shortening that today. Somebody else should buy one of these, and build something!
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