Valve

A valve 200 for a reversible heat pump, the valve having six ports 202a-202f that define three flow paths between pairs of the six ports. Two of the flow paths 204a, 204b are non-restricted whilst the third flow path 206 is restricted and may be arranged to cause expansion of a refrigerant, the amou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Matthew Graham Legg
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBINED HEATING AND REFRIGERATION SYSTEMS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve 200 for a reversible heat pump, the valve having six ports 202a-202f that define three flow paths between pairs of the six ports. Two of the flow paths 204a, 204b are non-restricted whilst the third flow path 206 is restricted and may be arranged to cause expansion of a refrigerant, the amount of expansion may be variable based on valve position. A thermally insulating barrier may be placed between the non-restrictive flow paths and the restrictive flow paths, or a thermally conducting material may be between the two non-restrictive flow paths. The valve may be a ball valve and may be driven by the use of a motor. A reversible heat pump having a compressor (306, fig 3a), a process or indoor heat exchanger 302, a rejection or outdoor heat exchanger 304 and the described six port valve is also claimed.