Abstract: A multipart socket-like glue-in retainer which is fastenable in a component opening in an adhesive manner in a component opening and which is configured in at least two parts and thus in an opening manner in radial direction due to an axial separation, so that only before a gluing-in of the glue-in retainer in a component opening, a functional insert is arrangeable in the glue-in retainer and after the gluing-in of the glue-in retainer in the component opening, the functional insert is retained inseparably in the glue-in retainer.

Abstract: A one-part male bayonet connector, by means of which at least two components are releasably connectable to one another in a non-destructible manner via an opening, which bayonet connector has a double T-like form in a side view, consisting of a head, a central shaft extending therefrom, and two radial webs extending diametrically from the shaft, which each comprise a fastening means of the bayonet connector facing the head so that, in addition to an interlocking bayonet connection, a frictional connection of the at least two components can be produced between the head and the fastening means of the radial webs.

Abstract: A fastening element consisting of a cage element with a nut arranged therein that is held by a fastening flange in the cage element. The cage element has a wall element which can be moved in an axial direction and shields the seat area of the cage element against the penetration of adhesive while mounting the fastening element on a component surface.

Abstract: An angular coupling for fastening a first component, especially a mounting part in a vehicle, to a second component, especially a vehicle body, which comprises a coupling bolt with a head and a coupling socket in which the coupling bolt can be pivoted in a plane angle portion while the head of the coupling bolt is locked releasably or not releasably. The coupling socket comprises an arch with a push-in opening, a fastening collar surrounding the push-in opening having a not round shape with a longitudinal axis and a shorter transverse axis, wherein the arch encloses a pivoting plane generated by the longitudinal axis of the push-in opening and the push-in direction, which defines a variable angular orientation of the lockable coupling bolt in a plane angle portion which is limited at the maximum by an inner wall of the arch.

Abstract: A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

Abstract: A method is proposed for compressing a gas in stages in a compressor arrangement (100, 200, 300, 400) having a plurality of compression stages (I-VI) which are connected together sequentially by a main line (1) and in which the gas, guided through the main line (1), is respectively compressed from a suction-side pressure level to a pressure-side pressure level and is heated by this compression from a suction-side temperature level to a pressure-side temperature level, wherein a feedback amount of the gas, guided through the main line (1), is at least temporarily removed from the main line (1) downstream of one of the compression stages (V), is fed to an expansion process, and is fed back into the main line (1) upstream of the same compression stage (V).

Abstract: A fastening element consisting of a cage element with a nut arranged therein that is held by a fastening flange in the cage element. The cage element has a wall element which can be moved in an axial direction and shields the seat area of the cage element against the penetration of adhesive while mounting the fastening element on a component surface.

Abstract: A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.