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Old 09-26-15, 11:46 AM   #17
marx290
Vapor Compression Goon
 
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Quote:
Originally Posted by jeff5may View Post
You can use a bullet strainer as an oil separator. Supco no. SUD 115 is the common one. Two Tubes facing up, single tube facing down. Bottom tube feeds long, small diameter cap tube back to suction line.
That is great! I wasn't sure if it would work. My best plan of attack for a oil return, was a sort of vortex separator on the discharge of the compressor, where oil would tend to fall to the bottom. A capillary tube would carry oil back to the compressor suction. I figure some sort of strainer would be advisable, in order to avoid plugging the capillary oil return line. I suspect that even a well designed system would compromise volumetric efficiency slightly, but would certainly be necessary for compressor health in some instances. Then again, keeping the heat exchanger walls cleared of oil, could improve thermal transfer too.

That's interesting. Thank you
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