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.

Abstract: The invention relates to a plastic fuel tank (1) for motor vehicles having at least one tank wall (2) surrounding at least one fuel volume, wherein the tank wall (2) is provided at least in a certain area or certain areas with means for increasing flexural rigidity in the form of two-dimensionally extended reinforcing layers (3) connected materially and/or positively thereto (FIG. 1).

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: An apparatus comprising: a transducer configured to mechanically vibrate; and a surface coupled to the transducer, wherein the surface is configured to receive the mechanical vibrations from the transducer, permit the vibration to pass through the surface whilst remaining substantially static, and such that in use the surface generates audible vibrations where the vibrations exit the surface and the surface is positioned proximate to an users ear.

Abstract: A fuel tank for a motor vehicle, comprising at least one fuel delivery pump arranged in the fuel tank inside a surge tank provided therein, at least one suction jet pump fed from the feed of the fuel delivery pump for filling the surge tank or for draining at least one further volume arranged inside the fuel tank or formed by the fuel tank into the surge tank or into the volume of the fuel tank in which the surge tank is arranged. The fuel tank according to the invention is characterized in that at least one suction jet pump is connected, in that it takes fuel alternately, depending on the tank fill level, from several volumes arranged or formed inside the fuel tank or it can be operated intermittently depending on the tank fill level.

Abstract: An article enclosing at least one built-in fitment component in the form of a hollow body of thermoplastic material. The hollow body is preferably in the form of a fuel tank. The built-in fitment component is pressed against the inside wall of the article while still plastic so that the plastic material of the hollow body penetrates through at least one recess or opening of the built-in fitment component and flows therebehind.

Abstract: The invention relates to a fuel tank for a motor vehicle, which is made up of two shells which are complementary to one another, wherein the shells are supported against one another by at least one strut penetrating the tank (1), connecting opposing wall regions of the tank. The strut is configured as a two-part hollow strut (4), wherein the parts of the hollow strut are latched together via a plug connection and the latching connection is secured by at least one closure body (12) at least partially filling up the cross section of the hollow strut (4) at least level with the latching connection.

Abstract: The invention concerns a process for the production of an article enclosing built-in fitment components in the form of a hollow body of thermoplastic material. The hollow body is preferably in the form of a fuel tank. The process includes the extrusion of one or more preforms in web or tube form of plasticized material between the opened portions of a mold tool forming a cavity, wherein at least one built-in fitment component to be enclosed by the finished article is placed between the portions of the mold tool and the tool is closed around the preforms and the built-in fitment component, wherein the preforms within the cavity enclosed by the tool acquire the external configuration of the article. The built-in fitment component is pressed during or directly after the shaping operation against the inside wall of the article while still plastic so that the plastic material of the hollow body penetrates through at least one recess or opening of the built-in fitment component and flows therebehind.

Abstract: The invention relates to a fuel tank for a motor vehicle, which is made up of two shells which are complementary to one another, wherein the shells are supported against one another by at least one strut penetrating the tank (1), connecting opposing wall regions of the tank. The strut is configured as a two-part hollow strut (4), wherein the parts of the hollow strut are latched together via a plug connection and the latching connection is secured by at least one closure body (12) at least partially filling up the cross section of the hollow strut (4) at least level with the latching connection.

Abstract: The invention relates to a motor vehicle fuel tank (1) of thermoplastics having at least one filler neck (4) not moulded on in one piece, the latter being connected in a fluid-tight manner to the fuel tank (4), wherein the filler neck (5) is inserted into an opening (5) in the fuel tank (1) and is sealed by sealing means (11) at its outer circumference relative to the fuel tank (1) in the opening (5). The filler neck (4) is clamped axially against the tank wall (2), with the seal acting radially.

Abstract: The invention relates to a device for forming moulded bodies from a mouldable mass comprising a matrix grid (19) in which at least one receiving chamber (21) is accommodated, and at least one tool (17, 18) with which the mouldable mass can be pressed into the receiving chamber (21). Said claimed device is characterised in that the tool (17, 18) can be displaced along a guide path (3A, 3B) that comprises a moulding section (A), in which a constant pressure is exerted upon portions of the mouldable mass on the strip by the tools (17, 18), said mass being disposed in the receiving chamber (21). The invention further relates to a method for forming moulded bodies, in which a mouldable mass is formed and is guided to at least one receiving chamber of a matrix grid (1).

Abstract: The invention relates to a device for forming moldable bodies (57) from a moldable mass by means of a matrix grid (19), in which at least one cavity (21) is formed by lateral limiting elements (20), and at least one tool (17, 18) which compresses the moldable mass into the cavity (21). The inventive device is characterized by a compression partition (38) that can be displaced on the matrix grid (19) for portioning the moldable mass. Said compression partition (38) comprises lateral limiting elements (39) that correspond to the lateral limiting elements (20) of the matrix grid (19). The invention also relates to a method for forming moldable bodies (57) consisting of forming a moldable mass and guiding it to a matrix grid (19) such that it rests on the front face (45) of the lateral limiting elements (20) of the matrix grid (19).

Abstract: The invention relates to a filler neck (1) for a fuel tank of a motor vehicle which has at least one tubular section (3) provided in the area of the filler inlet to receive the outlet pipe (4) of a fuel delivery nozzle. The filler neck (1) according to the invention has the distinguishing feature of at least one insert forming a constriction as a flame barrier, which encloses the outlet pipe (4), forming at least one gas passage gap (7), the gap dimension being selected so that any flashback is prevented.

Abstract: The invention concerns a fuel tank (1) for a motor vehicle with means for ventilation and purging and with means for delivery of fuel to the combustion engine (10) of a motor vehicle, comprising at least one fuel delivery pump (6) arranged in the fuel tank (1) inside a surge tank (5) provided therein, at least one suction jet pump (8) fed from the feed (9) of the fuel delivery pump (6) for filling the surge tank or for draining at least one further volume arranged inside the fuel tank or formed by the fuel tank into the surge tank (5) or into the volume of the fuel tank in which the surge tank (5) is arranged. The fuel tank according to the invention is characterized in that at least one suction jet pump (8) is connected, in that it takes fuel alternately, depending on the tank fill level, from several volumes (3, 4, 12) arranged or formed inside the fuel tank or it can be operated intermittently depending on the tank fill level.

Abstract: Known tank flanges have a main filter which has a filter housing with an inlet and an outlet, and a first connecting duct for connecting the main filter to a feed unit. The filter housing is integrated in the tank flange, and filter fabric is inserted into the filter housing and the filter housing is closed off by a filter cover. The inlet of the filter housing is connected to the pressure side of a feed unit and the outlet leads to an internal combustion engine. A disadvantage is that, in order to exchange the filter fabric, the large-area filter cover must be opened, as a result of which a large amount of fuel vapor is dissipated to the atmosphere. In the case of the tank flange according to the invention, the exchangeability of the main filter is simplified by virtue of the main filter being embodied as a filter cartridge. It is provided according to the invention that the inlet of the main filter extends into the first connecting duct of the tank flange and therein forms a sealed connection.

Abstract: The invention concerns a fuel tank for a motor vehicle, comprising at least one venting device which is connected to a fuel vapor filter, wherein the venting device includes at least one collecting container for receiving liquid fuel. The fuel tank is distinguished in that disposed within the collecting container is a delivery pump for emptying it into the delivery volume of the fuel tank.

Abstract: The invention concerns a fuel tank (1) of thermoplastic material, comprising functional installation fitments for air intake and venting, for fuel take-off or the like, which is distinguished in that at least one functional installation fitment is connected to the inside wall (3) of the container in material-bonded relationship in such a way that the functional installation fitment defines with the container wall a volume separated from the filling volume of the container in such a way that the inside wall (3) of the container serves directly as a boundary wall of said volume.

Abstract: The invention concerns a fuel tank of thermoplastic material, comprising functional installation fitments for air intake and venting, for fuel take-off or the like, which is distinguished in that at least one functional installation fitment is connected to the inside wall of the container in material-bonded relationship in such a way that the functional installation fitment defines with the container wall a volume separated from the filling volume of the container in such a way that the inside wall of the container serves directly as a boundary wall of said volume.

Abstract: The invention relates to a plastic fuel tank (1) for motor vehicles having at least one tank wall (2) surrounding at least one fuel volume, wherein the tank wall (2) is provided at least in a certain area or certain areas with means for increasing flexural rigidity in the form of two-dimensionally extended reinforcing layers (3) connected materially and/or positively thereto (FIG. 1).

Abstract: The invention relates to a filler neck (1) for a fuel tank of a motor vehicle which has at least one tubular section (3) provided in the area of the filler inlet to receive the outlet pipe (4) of a fuel delivery nozzle. The filler neck (1) according to the invention has the distinguishing feature of at least one insert forming a constriction as a flame barrier, which encloses the outlet pipe (4), forming at least one gas passage gap (7), the gap dimension being selected so that any flashback is prevented.