Refrigeration – Processes – Assembling – charging – or repairing of refrigeration producer
Patent
1990-02-09
1991-06-04
King, Lloyd L.
Refrigeration
Processes
Assembling, charging, or repairing of refrigeration producer
62149, 62292, F25B 4500
Patent
active
050203312
ABSTRACT:
A refrigerant reclamation system for a refrigeration system having a refrigerant therein. The system includes a pump for removing refrigerant from the refrigeration system. The pump is driven by a pneumatic motor. The pump has a first mode of operation for removing refrigerant in a substantially liquid phase and a second mode of operation for removing refrigerant in a substantially gaseous phase. A refrigerant heat exchanger for cooling refrigerant passing therethrough is in fluid communication with the pump. A refrigerant recovery container is connected to the heat exchanger for receiving the cool refrigerant therefrom. A compressed gas drives the pneumatic motor so that the pump removes refrigerant from the refrigeration system and is passed through the heat exchanger. A pneumatic fan and manifold are connected to the exhaust of the pneumatic motor for dispersing the exhausted gas for impingement on the heat exchanger for cooling the refrigerant passing therethrough such that the exhaust gas from the pneumatic motor is used to assist in changing the phase of the refrigerant from gas to liquid.
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King Lloyd L.
National Refrigeration Products, Inc.
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