Proportional valve and also a heating and/or cooling system with a proportional valve

The proportional valve comprises at least one heating water passage 16 controlled by a valve, and at least one potable water passage 18 controlled by a further valve, wherein the valves have valve members 22,28 coupled together, ideally by a rod 32 or springs. A first 22 of the valve members is conn...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Thomas Prestle, Jan Blok
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CONTROLLING DEVICES FOR VENTING OR AERATING DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS RANGES REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS THERMAL INSULATION IN GENERAL VALVES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The proportional valve comprises at least one heating water passage 16 controlled by a valve, and at least one potable water passage 18 controlled by a further valve, wherein the valves have valve members 22,28 coupled together, ideally by a rod 32 or springs. A first 22 of the valve members is connected to a diaphragm 34 that divides a valve chamber 36 into first 28 and second 40 sub-chamber. The first sub-chamber has a first opening 42 controlled by the first valve member 22 and a second opening 44 narrowed by a venturi assembly 46. A channel 50 is provided from the venturi assembly to the second sub-chamber. A heating and/or cooling system including the proportional valve is also claimed. Ideally the valve has a first passageway 66 controlled by the first valve member and a further passageway 70 controlled by a spring-loaded third valve member 68. The valve ideally has a bypass path 62 having a cross-section adjustable by a screw 64 or slider and which circumvents the venturi assembly.