Quench expansion value refrigeration circuit

A refrigeration circuit (10) is provided with a guench line (30) connecting the liquid line (18) and the suction line (26) and containing a quench expansion valve (32). The quench expansion valve (32) is controlled responsive to the superheat of the refrigerant supplied to the compressor (12). By in...

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Bibliographische Detailangaben
1. Verfasser:	BECKHUSEN GERARD F
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	A refrigeration circuit (10) is provided with a guench line (30) connecting the liquid line (18) and the suction line (26) and containing a quench expansion valve (32). The quench expansion valve (32) is controlled responsive to the superheat of the refrigerant supplied to the compressor (12). By injecting liquid refrigerant downstream of the suction modulation valve (28) and the sensor for the thermal expansion valve (20), the system can be operated at low capacity without overheating the compressor oil.