Apparatus and Method for a Multi-Phase Vacuum-Assisted Recovery of Refrigerant

The present disclosure relates to apparatuses and methods for multi-phase vacuum-assisted recovery of refrigerant from a vehicle. One apparatus for multi-phase vacuum-assisted recovery of refrigerant from a vehicle includes a compressor that removes refrigerant from the vehicle during a first phase...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Sanhaji Rahhali, Govekar Craig
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PERFORMING OPERATIONS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The present disclosure relates to apparatuses and methods for multi-phase vacuum-assisted recovery of refrigerant from a vehicle. One apparatus for multi-phase vacuum-assisted recovery of refrigerant from a vehicle includes a compressor that removes refrigerant from the vehicle during a first phase and a second phase of a recovery process. The apparatus also includes one or more pressure sensitive devices that are each configured to measure a first pressure and/or a second pressure in the apparatus. Upon the first pressure being less than a first threshold pressure, a vacuum pump that is fluidly connected in series with the compressor assists the compressor in the removal of refrigerant from the vehicle during a second stage of the recovery process. Also, upon the second pressure being less than a second threshold pressure, the vacuum pump ceases assisting the compressor.