Abstract: The present invention discloses a filter apparatus (10) for a liquid vessel (30), in particular for aqueous urea solution. The filter apparatus (10) comprises a filter housing (11) having a through opening (12), and a liquid-permeable and air-impermeable filter element (16) which is connected to the filter housing (11) in such a way that the filter element (16) closes the through opening (12) of said filter housing (11) at least partially, with the result that the through opening (12) is liquid-permeable and air-impermeable. The filter apparatus (10) comprises, furthermore, at least one liquid outlet connection (17) which is fluidically connected to the through opening (12) of the filter housing (11). The filter apparatus (10) according to the invention is distinguished by the fact that it comprises a heating device (20; 21, 22) which is connected directly to the filter housing (11) and/or is integrated into the filter housing (11).

Abstract: The invention relates to an operating fluid tank (1) for a motor vehicle, comprising a tank body which is composed of two mutually complementary, injection-molded shells (2) which are made of thermoplastic material and which are welded circumferentially to one another to form a substantially closed hollow body, wherein at least one shell (2a, 2b) is formed at least in certain regions from thermoplastic materials of differing strength and/or elasticity, wherein at least one partial region is formed from a thermoplastic material which is elastically deformable, and wherein the shell (2a, 2b) has been obtained by a co-injection process during injection molding.

Abstract: The invention relates to a method for producing a container from thermoplastic material having a connection element (5) passing through the wall thereof. The method comprises making available at least one plate-shaped or shell-shaped or tube-shaped preform (3) made of plasticized thermoplastic material, introducing the preform (3) into a multipart molding tool (1) having cavities defining at least one molding recess, molding and final shaping of the preform (3) within the molding tool (1) using differential pressure, piercing of the still warm-plastic preform (3) from the tool side by means of a mandrel (9) in order to produce an opening (6) in the preform (3), insertion from the molding recess side of a connection element (5) into the opening (6) produced by the mandrel (9), and connection of the connection element (5) to the preform (3).

Abstract: The invention relates to an annular die (1) on an extrusion head for producing tubular or sheet-like preforms with an arcuate die gap and with a melt channel (4) delimited by a mandrel (2) and a die body (3), the cross-sectional profile of the melt channel (4) being variable by way of adjusting elements, the annular die according to the invention being distinguished by the fact that the outer circumference of the melt channel (4) is at least partially delimited directly by at least one radially adjustable slide (5), that the slide (5) is formed by a number of segments that can be adjusted together from at least one first position into at least one second position, and that the segments in each position form a respectively closed arc portion of the delimitation of the melt channel (4), the radius of the arc portion being different according to the position of the segments.

Abstract: The invention relates to a method for producing a container (2) from a thermoplastic, having at least one surround (4), provided in the container wall (1), for a container opening. The surround (4) comprises a structure behind which parts of the container wall (1) extend and/or which is penetrated by said parts. The method is carried out using a multi-part blow mold that has at least two mold parts, each having at least one cavity, wherein the surround is placed as an insert in the cavity (10) of the blow mold (7). The method comprises pressing the preform that has been forced into the cavity (10) into the structure of the surround (4) by means of a tool which is brought to bear on the preform (12) on the side of the preform facing away from the cavity (10).

Abstract: The invention relates to a method for manufacturing a fuel tank on the basis of thermoplastic material, the method comprising the following method steps: producing semifinished products in sheet form from a fiber composite material with a matrix of thermoplastic material, laminating the semifinished products with a laminate that comprises at least one barrier layer for hydrocarbons, heat-treating the laminated semifinished products until the thermoplastic material plasticizes, thermoforming the plasticized semifinished products in a thermoforming mold to form shells and joining the shells to form an essentially closed tank.

Abstract: A fuel tank of thermoplastic material for motor vehicles comprising at least one line of thermoplastic material, which extends between at least two fixed connection points on the tank wall inside the tank, the fuel tank being distinguished by the fact that the line is supported at at least one location or over at least one portion between its connection points against the force of the weight acting in the fitted position to prevent sagging and that the line is formed and/or routed and/or suspended such that an increase in the length of the line brings about a compensating movement of the line transversely to the direction of the force of the weight.

Abstract: The invention concerns a fluid container (1) for a motor vehicle, in particular a fuel tank. The fluid container (1) comprises at least one clamping strap (3) surrounding this to hold it at predefined fixing points of the bodywork (4) of a motor vehicle. The fluid container (1) according to the invention is characterized in that the clamping strap (3) is premounted captively on the fluid container (1) without additional fixing means.

Abstract: The invention relates to a system for heating a storage container (1) for an aqueous operating liquid in a motor vehicle having a combustion engine cooled by means of a liquid heat transfer medium, using the waste heat from the combustion engine, which is transferred to the heat transfer medium. The system comprises a first heat exchanger (9), which is provided in or on the storage container (1) and can be heated by means of the heat transfer medium in a cooling circuit (3) for the combustion engine, wherein the first heat exchanger (9) is part of a storage container heating circuit (10), which comprises a heat transfer medium feed (11) and a heat transfer medium return (12), wherein the storage container heating circuit (10) is connected hydraulically in parallel with a second heating circuit (7b) with a second heat exchanger (7) for heating the passenger cell (8) of the motor vehicle.

Abstract: The invention relates to a method for producing hollow bodies from thermoplastic material comprising the shaping of at least one tubular preform or at least two two-dimensional, web-like preforms of plasticated thermoplastic material into a substantially closed hollow body, for example in the form of a fuel tank for motor vehicles.

Abstract: Fuel tank made of thermoplastic material comprising baffle components provided therein in the form of at least one baffle element (2) comprising at least one wall portion (4) which is clamped approximately centrally and/or at the end, so that said wall portion may perform relative movements in relation to the tank, caused by splashing movements of the fuel, at least one fastening foot being provided for the clamping, the base thereof being provided with at least one through-hole, through which the fastening foot is riveted and/or welded to the tank wall (2).

Abstract: The present invention discloses a venting apparatus (10) for liquid containers, in particular for an aqueous urea solution, and comprises a housing (11) that is connectable to the liquid container (40) and that has a first opening (12) to the liquid container (40) and a second opening (13) to the surrounding environment of the liquid container. The venting apparatus further comprises an air-permeable and liquid-impermeable membrane, which is arranged between the first opening (12) and the second opening (13) in the housing (11). In addition, the venting apparatus comprises a slosh baffle, which at least partly covers the first opening (12). The venting apparatus (10) according to the invention is characterized in that the housing (11) and the slosh baffle (20) are formed in one piece.

Abstract: The present invention discloses an operating fluid container (10) made of thermoplastic material for a motor vehicle and a method for equipping an operating fluid container with a stiffening element (20).

Abstract: The invention relates to a device for storing and delivering a liquid additive for catalytic exhaust gas NOx removal in a motor vehicle, the device comprising a storage vessel (2), in which a delivery line (5), heated filter elements (7) and a combined sensor (12) are arranged. A delivery pump (8) is arranged outside the storage vessel (2). The filter elements (7), the combined sensor (12) and the delivery pump (8) are configured as subassemblies which are connected electrically and/or hydraulically to one another and are separated from one another spatially.

Abstract: The invention relates to a method for assembling and testing the functionality of a structural unit having a fill level gauge in a non-stationary container for liquids, said container being embodied from thermoplastic synthetic material, wherein the method comprises testing a first and second angular position of a lever arm of the fill level gauge when the latter is in the installed position under the influence of a magnetic field on the empty container.

Abstract: The invention concerns a process for the production of a container, in particular a fuel tank of thermoplastic material, by extrusion blow molding, wherein during shaping of the container within a multi-part tool the container is provided with at least one connecting element passing through the wall thereof, wherein with at least a part of the connecting element as a lost shaping male die the wall of the container is displaced from one side into a tool placed on the oppositely side of the container wall and removed. The invention further concerns a fuel tank with at least one connecting element which is connected to the tank wall at least in region-wise manner by intimate joining of the materials involved.

Abstract: A motor vehicle operating fluid container is made of thermoplastic. The container is composed of two shells forming a substantially closed hollow body. A first shell forms an upper base of the container, and a second shell forms a lower base of the container. The container includes at least one line which is designed as an integral part of a container wall over at least one sub-length, where the line is designed as a channel which runs in the container wall over said sub-length. The channel has an open trough-shaped profiled cross-section which forms a part of the line cross-section, and the channel is closed by at least one cover which complements the trough-shaped profiled cross-section so as to form a closed cross-section.

Abstract: The invention relates to a liquid reservoir (1), in particular for an aqueous urea solution, comprising a buffer storage means (2) arranged on the bottom of the liquid reservoir (1) in the installation position, a liquid delivery unit (3), at least one, preferably a plurality of first filter elements (4) arranged on the bottom in the installation position outside the buffer storage means (2), each of which first filter elements is connected to the liquid delivery unit (3) via a liquid line (5), the first filter elements (4) being constructed such that the filter fabric of the first filter elements (4) is permeable to the liquid located in the liquid reservoir (1) and impermeable to air, a second filter element (6) being arranged between the interior of the buffer storage means (2) and the liquid delivery unit (3), which second filter element is constructed such that the filter fabric of the second filter element (6) is permeable to the liquid located in the liquid reservoir (1) and impermeable to air, the bre

Abstract: The invention relates to a liquid/vapor separator (1) for a fuel tank for motor vehicles, comprising a housing (2) having a droplet collecting space (9) for fuel in vapor form. The housing (2) is provided with a connection cross section (4) which, in the installed position, opens into a space surrounded by a filler pipe of the motor vehicle. The liquid/vapor separator (1) comprises at least one first connection (6) for a refueling vent line of the fuel tank, said connection opening into the droplet collecting space (9), a second connection for a service vent line of the fuel tank, and a third connection (8) for a vent line leading to a fuel vapor filter.

Abstract: The invention relates to a fuel container (1) of thermoplastic plastics material having an upper base (2) and a lower base (3) which are supported against each other by means of at least one column-like support element (4), wherein the support element (4) is connected in a positive-locking manner and/or materially engaging manner to a wall (6) of the upper base on the one hand and to a wall (6) of the lower base on the other hand in such a manner that it can absorb tensile forces and/or pressure forces, wherein the support element (4) is constructed in several pieces and the support element is divided longitudinally and comprises at least two segments (8) which complement each other in cross-section and which form a common support face at the end side.