Dosing valve for breathing gas, has preliminary pressure compensation, valve drive, working membrane between preliminary pressure chamber and back pressure chamber

The dosing valve (1) has preliminary pressure compensation, a valve drive, a working membrane (7) between a preliminary pressure chamber (8) and a back pressure chamber (9). A compensation membrane (10) is provided between an expansion chamber (12) and compensation chamber (11) connected with the ba...

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Bibliographische Detailangaben
1. Verfasser:	HOFFMANN, KARSTEN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DEVICES FOR VENTING OR AERATING DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING ENGINEERING ELEMENTS AND UNITS FIRE-FIGHTING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES HYGIENE LIFE-SAVING LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The dosing valve (1) has preliminary pressure compensation, a valve drive, a working membrane (7) between a preliminary pressure chamber (8) and a back pressure chamber (9). A compensation membrane (10) is provided between an expansion chamber (12) and compensation chamber (11) connected with the back pressure chamber. The expansion chamber has a support surface (14), which continues at a distance for compensation membrane. A tappet push rod (15) is controlled by the valve drive, which is connected with compensation membrane. The outer part (17) has circulating crimp as deformation zone. Die Erfindung bezieht sich auf ein Dosierventil mit Vordruckkompensation und einer Sicherheitseinrichtung für eine Maximaldruck-Begrenzung des Vordruckes. Zur Lösung der Aufgabe ist im Bereich einer Kompensationsmembran (10) eine Verformungszone (18) vorgesehen, welche bei Druckbeaufschlagung durch den Vordruck in Richtung einer Verkleinerung der wirksamen Fläche der Kompensationsmembran (10) zur Anlage an einer Stützfläche (14) bringbar ist.