Abstract: A connection unit for connecting fluid lines is described, wherein the connection unit comprises a first connection body and a second connection body, wherein the connection unit comprises a machine-readable code which is not detectable when the first connection body and the second connection body are in an unconnected state and which is detectable when the first connection body and the second connection body are in a connected state.

Abstract: A coupling comprising a receiving element, a securing element, a retaining element and an insertion element, wherein the securing element is adapted to be displaceable between a release position and a locking position along a displacement axis, the securing element being adapted to engage the at least one retaining element in such a manner that a displacement of the securing element from the release position in the direction of the locking position is prevented, and wherein the insertion element is adapted to interact with the at least one retaining element upon insertion of the insertion element into the receiving space of the receiving element in such a way that a displacement of the securing element from the release position into the locking position is enabled.

Abstract: A unit for connecting a fluid line to a port of a superordinate assembly, comprising a base body comprising a connection piece at one axial end for connection to the fluid line and a receiving portion at another axial end. The unit comprises an insert element comprising a resilient material and at least one radially outwardly projecting protrusion. The insert element defines, in its interior, an axial central connection opening and is separate from and connectable to the base body. The at least one protrusion projects into a corresponding aperture formed in an area of the receiving portion. Each protrusion comprises a blocking flank extending outwardly in a substantially radial direction and facing the axial end of the base body opposite the connection piece. The blocking flank is configured to abut against a respective blocking protrusion on the base body in a receiving portion engaged state of the insert element.

Abstract: A high-pressure fluid line including a corrugated tube defining a fluid flow channel its interior, wherein a wall of the corrugated tube, in parallel with the extension direction of the fluid flow channel, comprises a sequence of wave peaks and wave troughs. The fluid line includes a braiding made of threads, which is applied to an outer periphery of the corrugated tube. The braiding bears tightly against the outer periphery of the corrugated tube at a substantially constant braiding angle over the entire corrugated tube. The braiding and the corrugated tube are connected at least at two mutually separate locations such that stretching of the corrugated tube in a longitudinal direction is accompanied by a reduction in a diameter of the braiding.

Abstract: A receiving unit of a coupling device for fluid lines, and the coupling device. The receiving unit comprises a closure element which fluidically seals the fluid flow channel in a closed position. The closure element is preloaded into the closed position using a spring element. The closure element comprises a perforation-free cylindrical portion. The entire spring element, in the release position of the closure element, is arranged within a region that is completely overlapped by the cylindrical portion along the entire longitudinal extent thereof, as viewed in a radial direction of the cylindrical portion.

Abstract: A connection unit for connecting fluid lines, including a plug-in unit connectable to a first fluid line not belonging to the connection unit, defining a first fluid flow channel in its interior, and a receiving unit connectable to a second fluid line not belonging to the connection unit, defining a second fluid flow channel in its interior. The plug-in unit and the receiving unit are connectable to establish a fluid connection between the first and second fluid flow channels. The connection unit also includes a release element transferrable from a holding state to a release state upon insertion of the plug-in unit into the receiving unit up to a predetermined depth, and an indicator element formed separately from the release element and locked by the release element in the holding state. The indicator element is detachable from the connection unit when the release element is in the release state.

Abstract: This disclosure is directed to a method for operating a wind farm having a plurality of wind turbines and to a control system for a wind farm. The wind farm is connected to an electrical grid. The wind turbines are operated to supply electrical power to the electrical grid in accordance with at least one setpoint value for a power related electrical variable. In the event that an available reactive power of the wind farm is smaller than a setpoint for a reactive power to be supplied by the wind farm, a required increase of reactive power is determined for each wind turbine of the wind farm.

Abstract: A coupling comprising a receiving element, a securing element, a retaining element and an insertion element, wherein the securing element is adapted to be displaceable between a release position and a locking position along a displacement axis, the securing element being adapted to engage the at least one retaining element in such a manner that a displacement of the securing element from the release position in the direction of the locking position is prevented, and wherein the insertion element is adapted to interact with the at least one retaining element upon insertion of the insertion element into the receiving space of the receiving element in such a way that a displacement of the securing element from the release position into the locking position is enabled.

Abstract: The invention relates to a connection unit for connecting fluid lines, wherein the connection unit comprises a first connection body and a second connection body, wherein the connection unit comprises a machine-readable code which is not detectable when the first connection body and the second connection body are in an unconnected state and which is detectable when the first connection body and the second connection body are in a connected state.

Abstract: A joint unit is provided, including a main body, a bush, which is fastened to the main body in the axial direction and forms with the main body a receiving space intended to receive a connecting piece not forming part of the joint unit, and a retaining unit for interacting with the main body and the connecting piece. The bush and the retaining unit are formed together in one piece. A joint assembly is further provided, including a joint unit and a connecting piece.

Abstract: A joint unit is provided, including a main body, a bush, which is fastened to the main body and forms with the main body a receiving space for a connecting piece, and a separately formed retaining unit arranged in a radially inwardly open circumferential groove in the bush. The radially inwardly open circumferential groove in the bush is open towards an axial end face of the bush in at least two circumferential portions. A connection assembly is further provided, including a joint unit and a connecting piece.

Abstract: The invention relates to a coupling system (12) which is used to connect a tube (7) to a socket (8). Said tube (7) comprises a support (13) which is arranged on at least one or the ends thereof. Said support can be inserted into the socket (8) and the comprises, on the external side thereof, at least one annular groove (14) and a securing contour (16). The socket (8) comprises a stop contour (20) on the external side thereof. A coupling element (17), which is produced separately in relation to the socket (8) and the support (13), is placed on the outside on the support (13). The coupling element (17) comprises at least one stop hook (19) which engages behind the stop contour (20) when the support (13) is inserted into the socket (8). The coupling element (17) comprises at least one securing hook (18) which co-operates with the securing contour (16) in order to fix the coupling element (17) to the support (13) in an axial manner.

Abstract: A corrugated plastic pipe with an integral fastening section, whereby the corrugated plastic pipe can be fastened to any object by way of the fastening section.

Abstract: The present invention relates to a corrugated pipe connecting arrangement comprising a corrugated pipe with corrugations extended transverse to its longitudinal axis, which can be arranged at substantially identical distances from each other, wherein said corrugated pipe is formed with a one-piece plain region at at least one end, said plain region comprising an abutment section, and can engage with a connecting element which may be merged with said plain region and said abutment section.

Abstract: The invention relates to a protective corrugated plastic tube or pipe, a corrugated piping, wherein according to the invention at least some of the flanks of corrugations of the tube or pipe have extensions (16), which go from one corrugation (11a) towards a neighboring corrugation (11b) and extend in the axial direction of the protective corrugated plastic pipe.

Abstract: The invention relates to a corrugated plastic pipe with an integral fastening portion, whereby the corrugated plastic pipe can be fastened to any object by way of the fastening portion, especially a threaded portion.

Abstract: The invention relates to a protective corrugated plastic tube or pipe, a corrugated piping, wherein according to the invention at least some of the flanks of corrugations of the tube or pipe have extensions (16), which go from one corrugation (11a) towards a neighboring corrugation (11b) and extend in the axial direction of the protective corrugated plastic pipe.