Abstract:
A sealing assembly for controlling a flow of fluid through a fluid line has a housing having a first end opposite a second end with a hollow interior extending therebetween and an elastically resilient plug disposed within the hollow interior of the housing. The plug has a body engagable with a seat within the housing and a tension member having a first end connected to the body and a second end connected to the housing. The tension member is pre-loaded in tension to urge the body of the plug against the seat to seal the hollow interior of the housing. The body is movable away from the seat when the plug is acted upon by a fluid pressure greater than a pre-load force of the tension member.
Abstract:
The present invention concerns a fluid stop valve unit comprising at least one fluid stop valve and a pressure responsive part, integrated or separate, arranged so that the at least one fluid stop valve is kept in a closed state. The pressure responsive part, integrated or separate, has an opening characteristic going from the closed state to an open state with a decrease of pressure after a threshold pressure has been reached.
Abstract:
This technical solution relates to valves providing for the passage of gas or liquid flows, and can be used in any field of science and technology where controlled transfer of liquid or gas flows is used, for example, in gas, petrochemical and chemical industries.
Abstract:
Restdruckhalteventil (1) in einer rohrförmigen Luftleitung (2) eines Luftversorgungssystems, wobei sowohl der Ventilsitz (3) als auch der Ventilkörper (4) als zusammenwirkende Endteile einer Trennstelle in der rohrförmigen Luftleitung ausgebildet sind und der Ventilsitz an der Druckerzeugerseite der Luftleitung angeordnet ist und der Ventilkörper an der Druckverbraucherseite der Luftleitung angeordnet ist, das als Ventilkörper ausgebildete Endteil eine Entlüftung (7) in das Ventilgehäuse sowie durch den Gehäuse-Innendruck beaufschlagte Wirkflächen (8) aufweist, derart, dass neben dem durch den Druckerzeuger erzeugten Druck auch der im Druckverbraucher anliegende Druck als Öffnungsdruck wirkt, wobei auf der Seite des Druckverbrauchers ein Restdruck aufrecht erhalten wird.
Abstract:
Die Erfindung betrifft ein Federelement (10), insbesondere für eine Kolbenpumpe, mit einem scheibenförmigen Grundkörper (11), in welchem mindestens ein Federsteg (16) eingebracht ist. Erfindungsgemäß umfasst der Grundkörper (11) zur Drosselung einer Fluidströmung (8) mindestens eine dynamische Drosselstelle (14), wobei der Grundkörper (11) im Bereich der mindestens einen Drosselstelle (14) federnd ausgebildet ist, so dass der Öffnungsquerschnitt der mindestens einen Drosselstelle (14) in Abhängigkeit von einer Druckdifferenz variabel einstellbar ist.
Abstract:
The invention relates to a relief valve in particular a gas relief valve. The relief valve comprises a house with an inlet side and an outlet side, a seat and a sealing element displaceable with respect to each other, and a first and a second spring element. The relief valve has a closed position and an open position. The sealing element rests on the said seat when the relief valve is in its closed position and the sealing element is displaced with respect to said seat to provide passage from said inlet side to said outlet side when the said relief valve is in its open position. The first and the second spring elements are arranged to apply a closing pressure when the relief valve is in its closed position. The first spring element is a linear operating spring element, such as a coil spring and the said second spring element is a nonlinear operating spring element, such as a disc spring. The relief valve of the invention provides a strong snap-open/closure effect, capable of operating with a desired pressure difference between the high pressure side and the low pressure side.
Abstract:
The pressure-relief valve (10) proposed has an obturator (18) which operates in conjuction with a valve seat (17). The obturator element (18) is biased to press against the seat with a certain pressure, the biasing force being exerted by a membrane (21) either directly or through additional spring means. When a given maximum pressure is exceeded, the membrane (21) comes to rest against a stop surface (26). Open mounting of the obturator element (18) enables narrow gaps which are susceptible to fouling to be avoided. The pressure-relief valve is compact, but ensures that the obturator element sits securely in the valve seat.
Abstract:
Pressure relief valve for a flexible hollow body such as a bag, packing envelope, balloon or the like. The valve comprises an upper gas-tight elastic sheet having at least one outlet opening for the gas exhaust. Said sheet is connected to a sheet-like wall of the hollow body and to a truncated valve body. The valve is provided with a lower gas-tight and vapour-tight elastic sheet (5), of which the edges (6) are secured to the upper sheet (4). Optionally, the lower sheet (5) forms a portion of the wall of the hollow body. An elastic foam layer is arranged between the upper sheet and the lower sheet. It is provided with a central recess adapted to the valve body to form an obturating device (8). This obturating device is movable so that the large end (14) of the cone of the obturating device (8) extends beyond on the outer face of an opening (9) provided in the lower layer (5) arranged in the hollow body wall. The diameter of the opening (9) arranged in the lower layer is slightly smaller than the diameter of the large end (14) of the truncated cone of the obturating device. Openings (11) for the gas discharge are formed in the upper sheet (4), at a distance from the surface of the upper sheet (4) which is in contact with the reduced portion (10) of the truncated cone. The pressure relief valve is appropriate to be adapted to a flexible hollow body such as pneumatic mattresses, inflatable cushions, meteorological balloons, etc., as well as for medical applications, for example for colostomy bags.
Abstract:
A hydraulic valve assembly (100) for controlling a clutch in a vehicle transmission. The valve assembly includes a housing (102) with a first port for connection to a source of pressurized hydraulic fluid, a displaceable (130) sealing piston disposed within the housing, a valve spring (136) for displacing the sealing piston, a snap- spring (104) having first and second equilibrium positions, and an overstroke spring. In the first equilibrium position a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve, and in the second equilibrium position the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve. Moving from the first equilibrium position to the second equilibrium position includes displacing the overstroke spring (106).
Abstract:
Die vorliegende Erfindung betrifft ein Ventil zur Steuerung eines Gasstromes, wie es beispielsweise zur Steuerung des Gasstromes zwischen einem Kurbelgehäuse und einem Ansaugtrakt eines Verbrennungsmotors eingesetzt wird. Die vorliegende Erfindung betrifft weiterhin einen Flüssigkeitsabscheider sowie für die vorgenannte beispielhafte Anwendung ein Entlüftungssystem für ein Kurbelgehäuse sowie einen Verbrennungsmotor.