Abstract: A damping device for fluids subject to pressure pulsations has at least one hydraulic accumulator (2). The accumulator housing (4, 6) contains a movable separating element (18), which separates a gas side (14) from a fluid room (16) and can be pressurized by a fluid present in the fluid room (16). A damper housing (34) having a second fluid room (38) is provided as a component of the accumulator housing (4, 6). Through the second fluid room (38), the fluid subject to pressure pulsations can flow. The second fluid room (38) contains a second movable separating element (40), which separates the second fluid room (38) from the first fluid room (16) of the hydraulic accumulator (2) without dead space.

Abstract: A damping device for fluids subject to pressure pulsations, having at least one hydraulic accumulator (2), the accumulator housing (4, 6) of which contains a movable separating element (18), which separates a gas side (14) from a fluid room (16) and can be pressurized by a fluid present in the fluid room (16), is characterized in that a damper housing (34) having a second fluid room (38) is provided as a component of the accumulator housing (4, 6), wherein through said second fluid room (38) the fluid subject to pressure pulsations can flow and the second fluid room (38) contains a second movable separating element (40), which separates the second fluid room (38) from the first fluid room (16) of the hydraulic accumulator (2) without dead space.

Abstract: A safety apparatus is for containers loaded by gas pressure, in particular the gas side (13) of hydropneumatic devices such as hydraulic accumulators (1). The safety apparatus has a connection device (19) that can be attached to the pressure chamber of the container to form a passage (25) between the gas side (13) of the container and the outside. A structure (27) normally blocks the passage (25) and under the influence of temperature can be transferred into a state that allows a flow path through the passage (25) to be cleared.

Abstract: A device (1) adjusts a media pressure relative to an ambient pressure defined by a depth-dependent sea water pressure during use of the device (1). The sea water pressure acts on a compensator device (35) that permits a reversible change in length or elongation. At least two compensator elements (41) of the compensator device (35) are provided in series in the direction of the change in length or elongation.

Abstract: A safety device for closure elements (1) on pressure-medium-containing tanks, in particular on hydropneumatic devices such as hydraulic accumulators, has a screw connection provided as a closure device on a filling or checking port. The screw connection has a closure screw (1) threadedly engaged on the port (3) and blocking the port (3) when the screw connection is tightened and opens the port (3) when a flow path is released. A device (25) limits the free movement path of the closure element (1) when moved out of a closed position as a result of occurring overpressure.

Abstract: A device for transferring a hydraulic working pressure in a pressure fluid for pressure actuating hydraulic units of deep sea systems, in particular deepwater wells, includes a first pressure chamber (19) for the pressure fluid, a displaceable piston arrangement (9, 11, 13) for changing the volume of the pressure chamber (19), and at least one second pressure chamber (21) in a cylinder arrangement (1). The surrounding pressure of the deep sea can be applied to the second pressure chamber for a displacement of the piston arrangement (9, 11, 13) generating the working pressure in the first pressure chamber (19). A pressure accumulator (37) is associated with the cylinder arrangement (1). The displaceable separating element (41) of the pressure accumulator separates a chamber (45) connected to the seawater from an actuating chamber (43) containing an actuating fluid and connected to the second pressure chamber (21) to apply the deep sea pressure to the second pressure chamber by the actuating fluid.

Abstract: A device (1) for adjusting a media pressure relative to an ambient pressure which is defined by a depth-dependent sea water pressure during use of the device (1), wherein the sea water pressure acts on a compensator device (35) which permits a reversible change in length or elongation, characterized in that at least two compensator elements (41) of the compensator device (35) are provided in series in the direction of the change in length or elongation.

Abstract: A media separating device (1), in particular a hydraulic accumulator (3), has a movable separator (5) separating two media (7, 9) received in media chambers (11, 13) and differing from each other. A measuring apparatus (15, 115) can detect an overflow of at least one medium (7, 9) from a medium chamber (11, 13) via the separator (5) into the other medium chamber (11, 13) having the other medium (9, 7).

Abstract: The invention relates to a media separating device (1), in particular a hydraulic accumulator (3), having a movable separating means (5) for separating two media (7, 9) which are received in media chambers (11, 13) differing from each other, wherein said media separating device is characterized in that, by means of a measuring apparatus (15, 115), it is possible to detect an overflow of at least one medium (7, 9) from a medium chamber (11, 13) via the separating means (5) into the other medium chamber (11, 13) having the other medium (9, 7).

Abstract: The invention relates to a device for transferring a hydraulic working pressure in a pressure fluid for pressure actuating hydraulic units of deep sea systems, in particular deepwater wells, wherein a first pressure chamber (19) for the pressure fluid, a displaceable piston arrangement (9, 11, 13) for changing the volume of said pressure chamber (19), and at least one second pressure chamber (21) are present in a cylinder arrangement (1), wherein the surrounding pressure of the deep sea can be applied to the second pressure chamber for a displacement of the piston arrangement (9, 11, 13) generating the working pressure in the first pressure chamber (19), characterized in that a pressure accumulator (37) is associated with the cylinder arrangement (1), the displaceable separating element (41) of said pressure accumulator separating a chamber (45) connected to the seawater from an actuating chamber (43), which contains an actuating fluid and is connected to the second pressure chamber (21) in order to apply the

Abstract: A safety apparatus for containers loaded by gas pressure, in particular the gas side (13) of hydropneumatic devices such as hydraulic accumulators (1), is characterized in that the safety apparatus has a connection device (19) that can be attached to the pressure chamber of the container in order to form a passage (25) between the gas side (13) of the container and the outside, and that a means (27) is present, which normally blocks the passage (25) and which under the influence of temperature can be transferred into a state that allows a flow path through the passage (25) to be cleared.

Abstract: A safety device for closure elements (1) on pressure-medium-containing tanks, in particular on hydropneumatic devices such as hydraulic accumulators, wherein a screw connection is provided as a closure device on a filling or checking port, which screw connection has a closure screw (1) which is in threaded engagement on the port (3) and which blocks the port (3) when the screw connection is tightened and opens the port (3) when a now path is released, is characterized in that a means (25) is provided which limits the free movement path of the closure element (1) which is moved out of a closed position as a result of occurring overpressure.