Abstract: 2. A hydraulic accumulator, in particular a piston accumulator, comprising a separation element (16) which is movably arranged in an accumulator housing (10) and which separates two media chambers (24, 26) from each other, and comprising a distance measuring device for monitoring the position of the separation element (16), is characterized in that the distance measuring device is in the form of a radar device (32) that includes a transmitter (42) emitting a primary signal which upon at least partial reflection off the separation element (16), generates a secondary signal which, upon reception by a receiver (46), allows a position of the separation element (16) in the accumulator housing (10) to be determined.

Abstract: The disclosure relates to a hydraulic accumulator, in particular a diaphragm accumulator, comprising an accumulator housing and a separating element which is arranged therein and separates two media chambers from each other. The accumulator housing has at least one fluid connection point which opens into an adjacent media chamber and has a connection body with a fluid passage point that is connected to the accumulator housing via a welding seam. The connection body has an annular outer circumferential surface on the connection region facing the accumulator housing, and when the end face of the connection body is placed on the accumulator housing, the connection body forms a transition point, along which the welding seam runs.

Abstract: A damping device, in particular for damping or preventing pressure surges, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, has a damping housing (2) encompassing a damping chamber (10). The damping housing (2) has at least one fluid inlet (6) and at least one fluid outlet (8), as well as a fluid receiving chamber extending between the fluid inlet (6) and the fluid outlet (8). During operation of the device, a fluid flow coming from the fluid inlet (6) passes through the damping chamber (10) towards the fluid outlet (8). A wall part of the fluid receiving chamber extends as a guide element (16) in at least one direction of extension transverse to the direction of the fluid flow. In the damping chamber (10), several guide elements (16) are provided, against which guide elements the fluid can flow to alter the flow velocity in certain areas.

Abstract: Disclosed is a piston accumulator having an accumulator housing (10) and a separator piston (12), which can be moved longitudinally in the accumulator housing (10) and separates two media spaces (14, 16) from each other, which is characterized in that an end-position cushioning (28) is provided between the separator piston (12) and the accumulator housing (10), which end-position cushioning (28) has at least one gap (66, 72) that narrows as the motion of the separator piston (12) increases in the direction of its end position and in that way builds up a flow resistance, which inhibits the motion of the separator piston (12), and which is introduced as a recess (64, 78) into at least one of the adjacent end faces (30, 56) of the separator piston (12) and the accumulator housing (10).

Abstract: A cutting roller has an axle (2), on which a cutting ring (4) is rotatably guided by a bearing device (10, 12). The bearing device is sealed against the environment by a sealing device (28, 30). By a compensating device (40), any differential pressure between the bearing device (10, 12) and the environment is compensable.

Abstract: A bellows accumulator, consisting of at least two housing parts (4, 6) which form an accumulator housing (2), and having a separating bellows (20), which is movably arranged in the accumulator housing (2) and separates two media spaces (8, 22) from each other and is at least on its one free end fixed to a securing device (24) in the accumulator housing (2), wherein said securing device (24) is welded to the adjacently arranged housing parts (4, 6), is characterized in that the adjacently arranged housing parts (4, 6) comprise at least in part titanium materials, in that the securing device (24) consists of at least two interconnected components (26, 30), at least one (26) of which comprises at least in part titanium materials and is welded to the adjacently arranged housing parts (4, 6), and in that the respective other component (30), consisting of a different metal material, is used for securing the separating bellows (20) to the securing device (24).

Abstract: A hydraulic accumulator, in particular in the form of a piston accumulator, has an accumulator housing (10) and a separating element (20) arranged in the housing. The separating element is in the form of a piston, which separates a fluid side (22) from a gas side (24). At least the gas side (24) can be inspected, at least in part, by at least one sight glass (34, 36) that is fixed in the accumulator housing (10).

Abstract: A piston accumulator having an accumulator housing (4) and a separating piston (10), which is guided longitudinally displaceable therein, which separates two media chambers (12, 14) from each other and which has a dual sealing system (16), wherein one of the sealing systems (18) faces one media chamber (12) and the other sealing system (20) faces the other media chamber (14), wherein at the location (58) a compensation device is at least partially accommodated in the separating piston (10) between the two sealing systems (18, 20), which compensation device enables hydrostatic pressure compensation between the two sealing systems (18, 20) to prevent an undesirable pressure buildup during operation.

Abstract: A bellows accumulator has at least one accumulator housing (2) and a separating bellows (20) movably arranged in the accumulator housing (2). The separating bellows 20 has a plurality of bellows folds and separates two media spaces (8, 22) from one another. The stationary open end of the separating bellows (20) is fixed to the accumulator housing (2) by a securing device (24). The separating bellows (20) has, at its movable other end, a closure part (36) having a guide device (40) by which the closure part (36) is guided in the accumulator housing (2). The closure part (36) has, in addition to the guide device (40), a sealing device (50). At least in the one extended end position of the separating bellows (20), the sealing device (50) separates a fluid space (8), in which the bellows folds are arranged in the accumulator housing (2), from a fluid port (12) in the accumulator housing (2). At least in some of the other working positions, the sealing device (50) releases this fluid connection.

Abstract: A tensioning cylinder device includes a housing (2), at least partly longitudinally movable piston-rod unit (30, 34) arranged in the housing and a compensating element in the form of a bellows body (18) having bellows folds. The bellows body is longitudinally variable and has a media-carrying connection to a compressible medium accommodated in a medium chamber (12) in the housing (2).

Abstract: A pressure accumulator having an accumulator housing (10) in which a movable separating element (16) separates a gas chamber (12) filled with a working gas from a fluid chamber (14) in a fluid-sealed manner. A monitoring device (46) is provided, which, in the event of a fault impairing the sealing effect of the separating element (16), provides an optically discernible indication and has an inspection window (54), through which an indicator can be observed. The monitoring device is connected to the gas chamber (12) and changes optical properties discernibly when wetted with the fluid. The indicator changing its optical properties is accommodated in a capsule (48) with a capsule wall (50) permeable to the passage of the fluid and arranged between the inspection window (54) and the separating element (16) in the accumulator housing (10).

Abstract: A bellows accumulator, consisting of at least two housing parts (4, 6) which form an accumulator housing (2), and having a separating bellows (20), which is movably arranged in the accumulator housing (2) and separates two media spaces (8, 22) from each other and is at least on its one free end fixed to a securing device (24) in the accumulator housing (2), wherein said securing device (24) is welded to the adjacently arranged housing parts (4, 6), is characterized in that the adjacently arranged housing parts (4, 6) comprise at least in part titanium materials, in that the securing device (24) consists of at least two interconnected components (26, 30), at least one (26) of which comprises at least in part titanium materials and is welded to the adjacently arranged housing parts (4, 6), and in that the respective other component (30), consisting of a different metal material, is used for securing the separating bellows (20) to the securing device (24).

Abstract: A bellows accumulator, consisting of at least one accumulator housing (2) and having a separating bellows (20) which is movably arranged in the accumulator housing (2) and has a plurality of bellows folds and separates two media spaces (8, 22) from one another, wherein the stationary open end of said separating bellows (20) is fixed to the accumulator housing (2) by means of a securing device (24) and wherein said separating bellows (20) has at its movable other end a closure part (36) having a guide device (40) by means of which the closure part (36) is guided in the accumulator housing (2), is characterized in that the closure part (36) has, in addition to the guide device (40), a sealing device which, at least in the one extended end position of the separating bellows (20), separates a fluid space (8), in which the bellows folds are arranged in the accumulator housing (2), from a fluid port (12) in the accumulator housing (2) and, at least in some of the other working positions, releases this fluid connect

Abstract: An equalization device is, in particular, in the form of a tank. The housing (2) of the tank has at least one inlet (8) and one outlet (10) for receiving and discharging fluid, respectively, at least in one of the housing walls (4) of the housing, which housing can be filled with the fluid. At least one equalization body (14) is arranged within the housing (2). The equalization body is at least partly provided with an elastically compliant separating wall (20). The interior of the equalization body is delimited, and is at least partly in pressure-equalizing connection (32) with the surroundings at a passage (12, 32) through one of the housing walls (4).

Abstract: 1. Cutting roller. 2. A cutting roller having an axle (2), on which a cutting ring (4) is rotatably guided by means of a bearing device (10, 12), which is sealed against the environment by means of a sealing device (28, 30), is characterized in that by a compensating device (40) any differential pressure between the bearing device (10, 12) and the environment is compensable.

Abstract: A method for producing pressure vessels, including pressure accumulators, such as hydraulic accumulators and parts of the parts of the accumulator (24). The parts produced by a 3D printing method can include one or more or all of two housing parts and a separating element separating the interior chamber of the two hosing parts are at least partially produced by a 3D printing method.

Abstract: A hydraulic accumulator, in particular in the form of a piston accumulator, comprising an accumulator housing (10) and a separating element (20) arranged therein, in particular in the form of a piston, which separates a fluid side (22) from a gas side (24), is characterized in that at least the gas side (24) can be inspected, at least in part, by means of at least one sight glass (34, 36) which is fixed in the accumulator housing (10).

Abstract: A damping device, in particular for damping or preventing pressure surges, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing (2) encompassing a damping chamber (10), wherein said damping housing (2) has at least one fluid inlet (6) and at least one fluid outlet (8) as well as a fluid receiving chamber extending between the fluid inlet (6) and the fluid outlet (8), wherein during operation of the device a fluid flow coming from the fluid inlet (6) passes through the damping chamber (10) towards the fluid outlet (8) and wherein a wall part of the fluid receiving chamber extends as a guide element (16) in at least one direction of extension transverse to the direction of the fluid flow, is characterized in that in the damping chamber (10) several guide elements (16) are provided, against which the fluid can flow and which alter the flow velocity in certain areas.

Abstract: A damping device, particularly for damping or avoiding pressure surges such as pulses, in hydraulic supply circuits, preferably in the form of a silencer, includes a damping housing that surrounds a damping chamber (19), has at least one fluid inlet (11), has at least one fluid outlet (13) and has a fluid receiving chamber (19) extending between the fluid inlet (11) and the fluid outlet (13). During operation of the device, a fluid flow crosses the damping chamber (19) in a through-flow direction (15), coming from the fluid inlet (11) in the direction of the fluid outlet (13). At least parts of the fluid receiving chamber (19) extend in at least one extension direction transversely with respect to the through-flow direction (15). The fluid receiving chamber (19) immediately adjoins the fluid inlet (11) and the fluid outlet (13) and is delimited by at least one yielding wall part (4).

Abstract: A pressure accumulator having an accumulator housing (10) in which a movable separating element (16) separates a gas room (12) filled with a working gas from a fluid room (14) in a fluid-sealed manner, wherein a monitoring device (46) is provided, which, in the event of a fault impairing the sealing effect of the separating element (16), provides an optically discernible indication and which has an inspection window (54), through which an indicator can be observed, which is connected to the gas room (12) and whose optical properties change discernibly when wetted with the fluid, is characterized in that the indicator changing its optical properties is accommodated in a capsule (48), the capsule wall (50) of which is permeable to the passage of the fluid and which is arranged between the inspection window (54) and the separating element (16) in the accumulator housing (10).