Recovery system for very high-pressure refrigerants

Details Recovery system for very high-pressure refrigerants Recovery system for very high-pressure refrigerants

1996-10-11

1998-03-03

Sollecito, John M.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62292, F25B 4500

Patent

active

057222479

ABSTRACT:
An improved system for recovering and charging refrigerant of a refrigeration system. The system includes a series arrangement of two gas compressors that boost the pressure of the recovered refrigerant to a high enough level for storage in a DOT-3AA type cylinder. The recovered refrigerant is not condensed to the liquid state during recovery, nor is the cylinder chilled. The second high-pressure compressor includes a free-floating piston within a cylinder. The piston is hydraulically actuated. The system includes microprocessor control. The system is well suited for recovery of refrigerants such as R-13, R-23, R-503, and SUVA-95.

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patent: 5511387 (1996-04-01), Tinsler

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