Abstract: A pressure accumulator includes an accumulator housing (2) in which a movable separating element (30) fluid-tightly separates a gas chamber (16) filled with a working gas from a fluid chamber (28). A monitoring device (50, 54) supplies an optical signal in the event of a malfunction affecting the sealing effect of the separating element (30).

Abstract: A pressure accumulator comprises an accumulator housing (2) in which a movable separating element (30) fluid-tightly separates a gas chamber (16) filled with a working gas from a fluid chamber (28). The pressure accumulator is characterized in that a monitoring device (50, 54) is provided which supplies an optical signal in the event of a malfunction affecting the sealing effect of the separating element (30).

Abstract: The invention relates to a system (14) and a method for determining a preferred communication channel for the delivery of an electronic message from a sender (10) to a recipient (12). The system comprises an input module (15), via which a request, from a requesting system (11), for a preferred communication channel can be received. Further it comprises a selection module (16), by which a first probability of availability of the recipient (12) can be estimated via a first communication channel (13a) and a second probability of availability via a second communication channel (13b). Selection module (16) determines the preferred communication channel depending on the first and second probability of availability, which thereupon is output to requesting system (11) by an output module (18). In determining the preferred communication channel, a confidentiality level of the confidentiality of the electronic message is considered.

Abstract: A pressure tank, in particular hydraulic accumulator (3, 5), has a parting element (1) separating a space (11) for a first gaseous working medium from a space for a second fluid working medium in the tank. The parting element is flexible, can move under deformation and defines a domed main parting plane extending from an annular edge (13). The parting element (1) is produced from a substance having a fluoroplastic material, preferably a substance composed entirely of fluoroplastic material.

Abstract: A pressure accumulator, in particular a pulsation damper, has an accumulator housing (1) defining a longitudinal axis (3) and having an inflow opening (15) and an outflow opening (17) for a fluid. A gas space (23) for a working gas and a fluid space (33) are separated from one another inside the accumulator housing (1) in a gas-tight manner by a bellows-like separating member (21). The separating member (21) is connected at one end (25) to a lid (27) forming a fixed termination of the gas space (23) in relation to the housing and at its other end (29) to a piston part (31) axially movable in the accumulator housing (1) and forming a movable termination of the gas space (23). Working movements of the piston part (31) bring about changes in volume of the working spaces adjoining the separating member (21). Inflow opening (15) and outflow opening (17) are respectively provided at the one end and at the other end, opposite one another in the axial direction of the accumulator housing (1).

Abstract: A pressure accumulator, especially a pulsation damper, includes an accumulator housing (10) and a piston element (28) disposed in it. A bellows-type separative element (30) is supported on the piston part (28) with its one end (32) and with its other end (34) on the accumulator housing (10). The separative element (30) separates two working chambers (26, 40) within the accumulator housing (10) from each other, especially a gas chamber (26) from a fluid chamber (40), in a fluid-tight, especially gas-tight manner. To one working chamber (26), in addition to a defined volumetric proportion of a working gas, is filled with a fluid. In this manner, the working gas allows for a compression to a certain degree and for a dampening and smoothening of the pulsations of the fluid medium migrating to and occurring on the fluid side of the accumulator.

Abstract: A pressure accumulator, in particular a pulsation damper, having an accumulator homing (1) which defines a longitudinal axis (3) and has an inflow opening (15), and an outflow opening (17) for a fluid, wherein two working spaces, in particular a gas space (23) for a working gas and a fluid space (33), are separated from one another inside the accumulator housing (1) in a fluid-tight manner, in particular in a gas-tight manner, by a bellows-like separating member (21), and the separating member (21) is connected at its one end (25), to a lid (27), forming a fixed termination of the gas space (23) in relation to the housing, and at its other end (29) to a piston pan (31) which is axially movable in the accumulator housing (1) and forms a movable termination of the gas space (23), such that working movements of the piston part (31) bring about changes in volume of the working spaces adjoining the separating member (21), is characterized in that inflow opening (15) and outflow opening (17) are respectively provid

Abstract: In a pressure tank, in particular hydraulic accumulator (3, 5), having a parting element (1), which parting element (1) separates a space (11) for a first, in particular gaseous, working medium from a space for a second working medium, in particular a fluid, in the tank, is flexible, can move under deformation and defines a domed main parting plane which extends from an annular edge (13), the parting element (1) is produced from a substance which has a fluoroplastic material, preferably a substance composed entirely of fluoroplastic material.

Abstract: The invention relates to a pressure accumulator, especially a pulsation damper, which comprises an accumulator housing (10) and a piston element (28) disposed therein. A bellows-type separative element (30) is supported on the piston part (28) with its one end (32) and with its other end (34) on the accumulator housing (10). Said separative element (30) separates two working chambers (26, 40) within the accumulator housing (10) from each other, especially a gas chamber (26) from a fluid chamber (40), in a fluid-tight, especially gas-tight manner. The one working chamber (26), in addition to a defined volumetric proportion of a working gas, is filled with a fluid. In this manner the working gas allows for a compression to a certain degree and thus for a dampening and smoothening of the pulsations of the fluid medium migrating to and occurring on the fluid side of the accumulator.

Abstract: A hydraulic accumulator includes an accumulator housing (1) and a diaphragm (3) forming a displaceable partition element in the housing between a gas chamber (7) and a liquid chamber (5). The membrane has several annular regions (31, 33, 35, 37, 39), interconnected by annular weak points (61, 63, 65, 67, 69, 71). The annular regions (31, 33, 35, 37, 39), have protuberances (81, 83, 85, 87, 89) on the interior face of the membrane (3) facing away from the wall of the accumulator housing (1). The protuberances are at their thickest in the central region between adjacent weak points, thus increasing the wall thickness of the membrane (3), and are at least partially convex (91,93), tapering off to a respective flat form towards the weak points.

Abstract: A hydropneumatic pressure reservoir (1) forms a housing from at least two housing shells (3, 5) connected together. At least the end region of the one housing shell (5) includes an outwardly-extending, funnel-like guide surface between its free end and a sealing element for bringing together the two housing shells (3, 5). At least on elastic sealing element (41) is provided on at least one retaining surface for generation of a tensioning force on the boundary region (21) of the membrane (13). A simplified construction with improved sealing in the critical connection of the pressure reservoir is achieved.

Abstract: Hydraulic accumulator comprising an accumulator housing (1) and a diaphragm (3) located therein, which forms a displaceable partition element between a first chamber, in particular a gas chamber (7) and a second chamber, in particular a liquid chamber (5). Said membrane has several annular regions (31, 33, 35, 37, 39), interconnected by annular weak points (61, 63, 65, 67, 69, 71). The annular regions (31, 33, 35, 37, 39) have protuberances (81, 83, 85, 87, 89) on the interior face of the membrane (3) facing away from the wall of the accumulator housing (1). Said protuberances are at their thickest in the central region between neighboring weak points, thus increasing the wall thickness of the membrane (3) and are at least partially convex (91, 93), tapering off to a respective flat form towards the weak points.

Abstract: The invention relates to a hydropneumatic pressure reservoir (1) with a housing formed from at least two housing shells (3, 5) which may be connected together. At least the end region of the one housing shell (5) comprises an outwardly-extending, funnel-like guide surface between the free end thereof and a sealing element for bringing together the two housing shells (3, 5). At least one elastic sealing element (41) is provided on at least one retaining surface for generation of a tensioning force on the boundary region (21) of the membrane (13). A simplified construction with improved sealing in the critical connection region of the pressure reservoir may thus be achieved.