Refrigeration fluid recovery apparatus

Details Refrigeration fluid recovery apparatus Refrigeration fluid recovery apparatus

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 45/00 (2006.01) H04N 3/227 (2006.01)

Patent

CA 2096353

ABSTRACT OF THE DISCLOSURE An apparatus adapted for recovering compressible refrigeration fluid from a refrigerator means and delivering the recovered fluid under high-pressure conditions along a line to a receptacle, in fluid communication and in sequence along the line. An accumulator means to which refrigeration fluid from the refrigerator means in gaseous form is drawn, a compressor to compress the refrigeration fluid from the accumulator and create a vacuum condition for drawing refrigeration fluid from the refrigerator means, and a condenser to liquify the refrigeration fluid for delivery to the receptacle, the improvement characterized by a secondary receptacle being provided, communicating with the line between the condenser and receptacle and with the line upstream of the accumulator, and a valve means in the line between the secondary receptacle and the compressor arranged, when the pressure in the secondary receptacle exceeds a predetermined value, so that the valve will open to allow some of the refrigeration fluid to flow back to the compressor for recondensation, to thereby lower the pressure in the receptacle.

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