Abstract: The present invention relates to a connector for fluid lines having of a coupling part that can be plugged together with a counter-coupling part along a plug-in axis. A locking device releasably locks the coupling part together with the counter-coupling part. The locking device includes a radially elastically deformable holding element held outside on the coupling part and at least partially encompassing it circumferentially. The holding element interacts with the coupling part, when positioned on the coupling part, via a fixation structure, such that said holding element can optionally be oriented in different relative rotational positions and be fixated in each case to prevent a free, unrestricted rotation about the plug-in axle (X) relative to the coupling part.

Abstract: A connector for connecting at least one fluid line with another fluid line or a power unit. The connector includes a housing, a mating connector and an adapter sleeve. The adapter sleeve includes positive-locking elements that retain the adapter sleeve engaged with the housing. The adapter sleeve further includes latching arms releasably retaining the mating connector in the adapter sleeve.

Abstract: A plug-in connector assembly for connecting at least one fluid line to another fluid line or to an aggregate connection. The plug-in connector assembly includes, a housing, a mating plug-in connector and an adapter sleeve. The mating plug-in connector and the adapter sleeve are received within a sleeve section of the housing, with the adapter sleeve operating to attach the mating plug-in connector to the housing in a releasable manner.

Abstract: A line connector having a connector piece with at least one junction portion for junction connection to a media line or to an assembly, a transitional portion contiguous to the junction portion, and a flow duct. In at least the region of the transitional portion, an electrical heating element for the media line is provided in an arrangement at least partially surrounding the flow duct. The connector piece, together with the heating element, is surrounded by an outer cladding. At least one of the junction portions is designed as a hollow, cylindrical receptacle for directly plugging in the end of the media line, the media line being capable of being fastened in a materially integral manner. The junction portion including, at least in regions, a material transparent to laser beams in such a way that the media line can be fastened by way of laser welding.

Abstract: In a prefabricated electrically heatable media line having at least one pipeline part with an integrated electrically conductive device and having at least one connecting device, in particular a plug, screw or coupling device, the pipeline part and the electrically conductive device extend as far as or close to that end of the connecting device which is averted from the pipeline part or close to, in front of or in a connection contour. In a method for producing a media line, a pipeline part is produced with at least one integrated electrically conductive device and the integrated electrically conductive device is exposed in at least one end region of the pipeline part, permanent electrical contact is made with said integrated electrically conductive part by a contact-making device, and the contact-making device is routed out at the outer face of the pipeline part in order to form a connection to an electrical energy source.

Abstract: A multipart heatable media line including at least two sub-media lines, at least one heating element for heating the sub-media lines, at least one line connection device with connection sections for connecting to the sub-media lines, and at least one measuring device. The line connection device has at least one medium channel for conducting the medium through the line connection device from one connection section to the at least one other connection section, and the measuring device including at least one sensor element and is received in a line connection device receiving opening which is designed as a coupling portion.

Abstract: A connection device for the plug connection of at least one media line includes a housing part with at least one reception orifice for plugging in a plug portion connected or connectable to the at least one media line. The housing part includes a basic part and an insert part. The basic part is releasably connected with a form fit to the insert part via a latching connection. The latching connection holds the insert part releasably and is formed by a C-shaped spring clip which is seated on the outside of the basic part and engages with at least one latching extension radially through an orifice of the basic part into a circumferential latching groove of the insert part.

Abstract: A plug connection having two intermateable coupling parts that can be releasably locked via a locking device. The locking device includes a radial retaining bar on each of the coupling parts and a retaining part with a circumferentially closed annular contour. In a preassembled state, the retaining is undetachably assembled on one of the two coupling parts. In an assembled state, the retaining part axially and radially encompasses the retaining bars of both coupling parts. The retaining part includes an elastically moving retaining section having a C-shaped section defined by two collars. The collars have different sizes and/or shapes such that one collar releases an adjacent retaining bar upon the radial elastic outward movement out of the assembled state. The other collar remains engaged behind the retaining bar of the other coupling part.

Abstract: A line connector having a connector piece with at least one junction portion for junction connection to a media line or to an assembly, a transitional portion contiguous to the junction portion, and a flow duct. In at least the region of the transitional portion, an electrical heating element for the media line is provided in an arrangement at least partially surrounding the flow duct. The connector piece, together with the heating element, is surrounded by an outer cladding. At least one of the junction portions is designed as a hollow, cylindrical receptacle for directly plugging in the end of the media line, the media line being capable of being fastened in a materially integral manner. The junction portion including, at least in regions, a material transparent to laser beams in such a way that the media line can be fastened by way of laser welding.

Abstract: A multi-part line, wherein line parts are provided, at ends of said line parts, with at least one connector assembly having at least one retaining element, wherein a connector part of the connector assembly of a line part and a coupling part of the connector assembly of the adjacent line part can be or are connected by overplugging and locking the at least one retaining element.

Abstract: A heatable fluid line having a pipeline and an electrical heat conductor extending at least over a section of the pipeline. The pipeline has at least two longitudinal sections that are configured differently in respect of the material properties and/or design thereof. At least one first longitudinal section is formed of a first material and a second longitudinal section is formed of a second material. The material of the second longitudinal section is more flexible and/or has a higher resilience than the material of the first longitudinal section. A described method for producing the fluid line relates to an adaptive attachment of the heat conductor on the outside of the pipeline that permits the heat conductor to be wound around fluid coupling and/or connector parts, in particular the housings by means of which the line is assembled, without strand separation.

Abstract: An assembled media line, or a section of a media line, for connecting a tank to a dosing unit in order to add a reducing agent into a SCR catalyst system of an internal combustion engine. The fluid line has electric heating in some sections for heating of the fluid. The fluid line is additionally provided, at least in some areas, with fluid tempering. In use, the media line connects a tank to a dosing unit in order to add a reducing agent in a SCR catalyst system of an internal combustion engine, and wherein the engine coolant is used as tempering fluid. The tempering is achieved by inclusion of at least one tempering line running alongside the fluid line. A line connector for such a media line includes a connecting housing in which the fluid line and two tempering lines can be connected.

Abstract: A line connector with two mutually separate flow paths for the connection of a pipe-in-pipe line. The line connector has an inner connecting element for connecting to an inner pipe of the pipe-in-pipe line, an outer connecting element for connecting to an outer pipe of the pipe-in-pipe line, a first attachment element for attachment of the first line to the the inner pipe, and a second attachment element for attachment of the second line to the outer pipe. The inner connecting element and the first attachment element are integrally formed on a separate attachment part. The outer connecting element is integrally formed on a separate pipe adapter part. And, the second attachment element is integrally formed on a separate connecting sleeve. the connecting sleeve permits at both sides, in the unassembled state, being pushed over the outer pipe. The invention also relates to a line set including the line connector.

Abstract: For a heatable medium pipe having at least one pipe connector and heating element, wherein the heating element has a few wires, in particular one or two wires, wherein the wire(s) extend continuously along the medium pipe and along the at least one pipe connector. In a method for producing a heatable medium pipe, comprising the medium pipe, at least one pipe connector, a transition area between the medium pipe and the pipe connector, and at least one heating element, wherein the heating element has a few wires, in particular one or two wires, the medium pipe is pre-assembled with the at least one pipe connector, the wire or the few wires of the heating element are pre-assembled as a double-laid, one or two-part element or as an element connected to form a continuous part, the wire(s) are fastened on the outside of the pipe connector, transition area and medium pipe, and the ends of the wire(s) are guided into a feed-in connector for connecting to a current source or voltage source.

Abstract: A heatable medium pipe having at least one pipe connector and heating element, wherein the heating element has a few wires, in particular two wires, and said wires extend continuously along the medium pipe and along the at least one pipe connector.

Abstract: A process for the fabrication of a molded part with circular cross section and a hollowed-out cylindrical base body. An inner channel of the molded part, designed for the sealing with a connector part, has segments with various functions in axial direction. A fiber containing plasticized polymeric mass is injected into the cavity of a molding tool, and following hardening of the polymeric mass, the molded part is removed from the tool. In order to improve strength in a reliable manner, injection into the cavity is carried out radially from the inner channel towards the exterior, in a segment, or in an area of a segment, that does not serve for the mounting of a circumferential seal, or the mounting, and/or arrest of the connector part.

Abstract: A heatable medium pipe having at least one pipe connector and heating element, wherein the heating element has a few wires, in particular two wires, and said wires extend continuously along the medium pipe and along the at least one pipe connector.

Abstract: A pressure limiting valve having a housing head and a housing jacket. An axial inlet opening in a valve base is axially separated from an outlet opening. An inner valve seat connects to the inlet opening and an axially mobile valve piston is arranged to produce a closing force against a pressure (p) acting at the inlet opening. The valve body is formed as a stepped piston with a first step having a first surface that is acted upon in the axial direction by the pressure. The stepped piston has a first axial length that defines a first peripheral throttling gap with an inner surface (of the valve seat. The stepped piston also has a second step with a second surface that may be acted upon in the axial direction by the pressure, and together with the first surface (A1), forms a total pressure surface. The second step has a second axial length (L2) that defines a second peripheral throttling gap.

Abstract: A molded part and a method for producing the molded part. The molded part is rotationally symmetrical or at least partially annular in cross section and formed by a plasticized polymeric mass containing fibers being injected through an injection opening into a cavity of a molding tool. Once the polymeric mass has solidified, the molded part is removed from the tool. Injection into the cavity takes place through at least two injection openings in such a way that the fibers are aligned predominantly in the main stress directions of axial tension and torsion in the molded part.

Abstract: A plug-in connection system for fluidic lines, fittings or assemblies, having a housing part and a plug part that can be plugged into a receiving opening of the housing part. A holding element on one of the coupling parts latches with a mating holding element on the other of the coupling parts. The holding element has a spreading surface that, by sliding relative to a corresponding surface of the plug part causes a spreading movement of the holding element, transversely with respect to an axis during installation. In order to improve the plug-in behavior during installation, a spreading contour of the spreading surface engages a mating contour in such a way that, while being plugged in, the spreading travel (Sw) of the holding element changes in a non-linear manner, depending on the status of installation.