摘要:
A regulating apparatus for a pressure activated one-way valve. The one-way valve is for mounting on a container to permit the release of gas from within the container and to control the ingress of atmospheric air/. The regulating apparatus comprises a sealed and expandable chamber containing a gas. The chamber is operatively associated with the one-way valve such that when the chamber is exposed to elevated temperatures and/or reduced external pressure the gas within the chamber expands and exerts a force upon the one-way valve or portions thereof. The force tends to maintain the one-way valve in a closed or semi-closed configuration.
摘要:
A valve assembly (12) includes a first housing (22), a diaphragm member (24) having a plurality of individually pivotable sealing members (50), and a second housing (26) coupled to the end of the first housing over the diaphragm member. The second housing has a plurality of ports (78) spaced about the second member. The diaphragm member is structured to actuate between (i) a first state wherein the sealing members substantially seal the end of the first housing responsive to a pressure within the first housing being below a certain level, each of the ports being open in the first state, and (ii) a second state wherein the sealing members pivot away from and do not substantially seal the end of the first housing responsive to a pressure in the first housing being at or above the certain level, each sealing member substantially sealing a respective one of the ports in the second state.
摘要:
It is provided a valve comprising a vent (28) for injecting a fluid, wherein the vent (28) comprises an inlet (32) connected to a discharge opening (34) via a discharge channel (30), and a flexible diaphragm (24) for covering the discharge opening (34) of the vent (28), wherein the diaphragm (24) is separated from the vent (28), wherein the diaphragm (24) is adapted to be connected to a first part, particularly a vessel body (22) of a bowl (10), and the vent (28) is adapted to be connected to a different second part, particularly a stand (14) of a bowl, wherein the diaphragm (24) comprises a closing area (36) for closing the discharge opening (34) and a connecting area (38) for connecting the diaphragm (24) with the first part spaced to the vent (28), wherein at least one window (42) is provided between the closing area (36) and the connecting area (38). Since the vent (28) and the diaphragm (24) are not fixed to the same part but to different parts, the diaphragm (24) may be disassembled as a whole from the vent (28) for enabling an easy cleaning of the valve so that the cleaning of a bowl (10) adapted for receiving and/or mixing fluids comprising such kind of a valve may be facilitated.
摘要:
A compact, reliable, and easily manufacture relief valve capable of resolving pressure issues within a fuel cell system and its components or devices. The relief valve comprises a valve body having a first cap, a valve housing and a center post; and an elastomenc member or sealing member contained within the valve body and being secured to the valve body at one end and forming a seal with the valve body at the other end. The seal opens in response to a threshold pressure being exceeded. In one embodiment, the elastomeric member is secured to the interior of the first cap and/or valve housing and forms a seal with the outer diameter of the center post. The elastomeric member may be supported by a reinforcing member.
摘要:
Disclosed is a pack. The pack includes a pack body in which fluid is receivable, a plug affixed to an inner surface of the pack body, a portion of the plug being configured to protrude outward from the pack body, the plug having a discharge opening perforated therein, a lid located at one side of the plug to close the discharge opening, and an elastic member located at one side of the plug to impart elasticity to the lid in a direction of closing the discharge opening.
摘要:
Reed valve modules and corresponding reed valve assemblies are disclosed. In one embodiment, the reed valve module includes a body having a single or a plurality of sealing faces, a seat and flow passages from the seat to the sealing face(s). The reed valve module also includes one or a plurality of petals. In some embodiments, the module further includes a petal guard. Novel reed valve assemblies are disclosed incorporating the reed valve modules. One embodiment of the reed valve assembly includes a seat with a plurality of fluid conduits, a retainer plate with a plurality of fluid conduits and a means for receiving recesses between the seat plate and retainer plate. Other devices, systems, and methods related to reed valve modules and valve assemblies are also disclosed.
摘要:
Nonreturn valve (1), in particular for medical uses, with a first tube connection housing (2) and a second tube connection housing (4) and, arranged between the two tube connection housings (2, 4), a diaphragm disc (6) which is made of flexible material and which can be lifted from an annular valve seat (12) when there is an overpressure in an inlet channel (8) and can be pressed onto the valve seat (12) when there is an overpressure in an outlet channel (24). At its outer peripheral area, the diaphragm disc (6) is provided with an annular bead (14) which is received in mutually opposite annular grooves (16, 18) of the tube connection housings (2, 4). The diaphragm disc (6) is provided, radially outside the valve seat (12), with openings (20) leading to an outlet chamber (22), and the wall (26) of the second tube connection housing (4) lying opposite the openings (20) is provided with recesses (28) which communicate with the outlet channel (24), are separated from each other by supporting surfaces (30) for the diaphragm disc (6) and are connected to the outlet channel (24) by narrow deep grooves (32). The supporting surfaces (30) and the grooves (32) end at the centre in a substantially plane support (50) that protrudes in the direction of the diaphragm disc (6).
摘要:
Rückschlagventil (1), insbesondere für medizinische Anwendungen, mit einem ersten Schlauchanschlussgehäuse (2) und einem zweiten Schlauchanschlussgehäuse (4) und einer zwischen den beiden Schlauchanschlussgehäusen (2, 4) angeordneten Membranscheibe (6) aus flexiblem Werkstoff, welche bei Überdruck in einem Eingangsdurchlass (8) in einem ersten Schlauchanschlussgehäuse (2) von einem ringförmigen, einen mit dem Eingangsdurchlass verbundenen Einlassraum (10) umgebenden Ventilsitz (12) abhebbar ist und die bei Überdruck in einem Ausgangsdurchlass (24) sicher und in Minimalzeiten auf den Ventilsitz (12) andrückbar ist. Die Membranscheibe (6) ist an ihrem äußeren Umfangsbereich mit einem Ringwulst versehen, welcher in einander gegenüberliegenden Ringnuten (16, 18) der Schlauchanschlussgehäuse (2, 4) aufgenommen ist. Die Membranscheibe (6) ist radial außerhalb des Ventilsitzes (12) mit Öffnungen (20) versehen, die mit einem Auslassraum (22) verbunden sind. Der Ventilsitz (12) ist als den Einlassraum (10) auf der der Membranscheibe (6) zugewandten Seite umgebende ebene, ringförmige Fläche (26) ausgebildet. Die Membranscheibe (6) ist radial innerhalb der Öffnungen (20) mit einem einstückigen, kreisförmigen Vorsprung (28, 28a) versehen. Der Vorsprung (28, 28a) weist zumindest in dem Ventilsitz (12) gegenüberliegenden Bereich eine dem Ventilsitz (12) zugewandte ebene Oberfläche (30) auf, welche mit dem Ventilsitz (12) in einem breiten, ringförmigen Bereich in Eingriff gelangt. Auf der Oberseite (32) und Unterseite (34) der Membranscheibe (6) sind identische Vorsprünge (28, 28a) vorgesehen.