Abstract: A multi-component hollow structure including at least two synthetic resin housing parts (1, 3) with corresponding sealing surfaces (2, 4), and at least one half wall per housing part, in which the half walls of one housing part meet corresponding half walls of the other housing part in order to reinforce the hollow structure, and in which the corresponding sealing surfaces (2, 4) and the half walls (6, 7) are joined using a friction force, such as vibration welding or ultrasonic welding. A method for producing such multi-component hollow structures is also disclosed.

Abstract: An intermediate flange system for an internal combustion engine with direct fuel injection. The intermediate flange system is mounted between the intake device and the cylinder head and includes two subunits (10, 11). The first subunit includes a basic body (12) and is responsible for conducting the fuel. The other subunit includes a basic body (13) and serves to conduct the intake air. Both basic bodies can be optimally designed as a function of demands to which they are subjected. Thus, basic body (13) is preferably made of synthetic resin material, and basic body (12) of aluminum. Consequently, the overall intermediate flange system is lighter than prior art systems, which heretofore have been made entirely of aluminum.

Abstract: An intake device for an internal combustion engine, comprising welded shells joined along a partition line, in which the partition line is provided with a region for producing inclined additional surfaces, which generate a transverse force Q2 due to their inclination relative to a pressure force D applied for welding the shells. This transverse force Q2 offsets a transverse force Q1 which is generated as a result of the inclination of partial regions of the partition line relative to the applied pressure force D. In this way, the transverse forces which arise during production of the intake device may be at least partially offset in the component, so that little or no forces are exerted on the molding tools, and the welding results for the intake pipe may thus be improved.

Abstract: A thermal insert connection in which a joint (16) located between a receiving component (12) and an insertable component (10) is sealed by applying a seal (17) which lies on a surface area (20a, 20b) which forms a groove (18) for receiving the seal (17). The seal (17) is first inserted after the thermal insert is assembled and cooled so that the seal is not subjected to thermal stress during the thermal insertion process.

Abstract: The invention relates to a method of forming an X-ray layer image of an object (9) to be examined by means of an X-ray device which includes an X-ray source (2) and an X-ray detector (3); the X-ray source (2) and the X-ray detector (3) are displaced in an angular range (14) around the object (9) to be examined in order to acquire X-ray projection images from different directions. When only a single X-ray layer image is to be formed, or a plurality of X-ray layer images of parallel layers (S1, S2) of the object (9) to be examined, in accordance with the invention it is possible to reduce the expenditure required, notably the time required for the acquisition of the X-ray projection images, by forming the X-ray layer image directly from the X-ray projection images, the X-ray layer image being situated in a plane which extends essentially perpendicularly to the bisector (20) of the angular range (14), the angular range (14) amounting to less then 180°.

Abstract: An apparatus for moving a valve flap, especially in the air intake duct of an internal combustion engine, including a vacuum box (20) which executes a longitudinal movement in dependence on the application of a negative pressure or vacuum, and the longitudinal movement of the vacuum box is transmitted via a coupling rod (16) to a traverse rod (15), which in turn is connected to an actuating lever (13) for the valve flap (11). The coupling rod (16) and traverse rod (15) system allows the vacuum box to be arranged in any position relative to the valve flap (11). The apparatus can be simplified further by combining the diaphragm disk (27) with the coupling rod (16) to form a single, integral part. In this case, a force is exerted eccentrically on the vacuum box. The eccentrically exerted force can be compensated by the diaphragm having a shape other than a round contour.

Abstract: A filter element for an air filter, including a filter insert (2; 8; 10) and a seal (6) extending around the outer edges of the filter insert on the flat side thereof; the filter insert being folded in a zig-zag or pleated form and being composed of filter paper or filter fabric. The filter element (1; 7; 9; 10) rests against parts of a filter housing through the seal (6). The folded filter insert has a contour on one side which deviates extensively from a plane, at least in certain predetermined areas, thus creating a continuous zig-zag fold.

Abstract: A suction or air intake module for an internal combustion engine comprising an air suction pipe made of synthetic resin material and a flange joint at the air intake on the cylinder head housing of the internal combustion engine. The air suction pipe is a one-piece blown element of synthetic resin material and is disposed by a spring in a housing part of the air intake module with the air outlet end of the air suction pipe extending into the area of a connection between the housing part and the cylinder head housing. A flange is arranged in the connecting area between the housing part and the cylinder head housing, the flange forming a single piece with the housing part and enabling the housing part to be sealingly attached to the air inlet of the cylinder head housing.

Abstract: A valve for liquids including a valve housing (10) and a valve body (13) which is guided in the housing, and at least one releasable catch (16) which engages the valve body and holds the valve body in an open position in the valve housing until liquid starts to pass through the valve.

Abstract: A camshaft controller (10), in particular for use in an induction manifold system for a multi-cylinder internal combustion engine, including an induction distributor (11) with individual induction pipes (16 to 19) which are disposed adjacent one another and terminate in a flange. The camshaft controller (10) is disposed in a longitudinal bore in the individual induction pipes (16 to 19) and serves to open and close the induction pipes. Associated with each individual induction pipe is a sealing element (43 to 50) which is secured to the camshaft controller (10).

Abstract: An air filter for an for an air intake of an internal combustion engine. The filter includes a housing with a raw air inlet and a clean air outlet and an annular filter element having a pleated filter medium disposed therein. At least one buttressing element is provided to support the filter medium at the clean air side. The buttressing element has a knife-edge buttress disposed on the housing that extends to a position of maximum flexure of the filter element. The knife-edge buttress is further provided with a support shoe disposed thereon such that the shoe supports the filter element.

Abstract: A plastic housing is proposed comprising a upper part, a bottom part and a control element to be disposed between the two parts, in particular a wax thermostat (10) for controlling the temperature of the intake air of a mixture-compressing internal combustion engine. The position of the control element is adjusted on assembly. This adjustment is carried out in that the control element is positioned by welding the housing bottom part (13) and the housing upper part (14) of the plastic housing (19) in the correct axial position.

Abstract: A hollow body with an internal supporting frame (10) which is connected to a housing (14) at at least two contact points. The housing and the supporting frame are made of synthetic resin material with the housing, which is produced by blow molding, enclosing the supporting frame.

Abstract: An air filter, particularly for the intake air of an internal-combustion engine, including a housing 13, an air filter insert 16 arranged in the housing, and a cover 10 closing off the housing 13. The air filter insert 16 is essentially a rectangular cartridge which has a surrounding seal 18. This seal 18 is clamped in between the housing 13 and the cover 10 in such a manner that it separates the unfiltered-air space from the filtered-air space. In addition, clamps 19 are provided which fasten the cover and the housing to each other and the filter cartridge is simultaneously secured in the housing. Direct supporting contact between the cover 10 and the housing 13 occurs only adjacent the clamps 19, and simultaneously the seal has a very low Shore hardness. As a result, the cover no longer rests as previously on the housing over the whole length of the seal, but only in the area of the clamps.

Abstract: A filter for cleaning lubricating oil of an internal combustion engine has a filter housing with an access opening on an upper side to insert and remove filter elements. A cover is arranged to close the access opening. The housing has an inlet opening for dirty fluid and an outlet opening for clean fluid. Furthermore, a drain opening is provided in the housing which can be opened and closed with a closure element. The closure element is operationally coupled to the cover such that when the cover is closed, the closure element closes the drain opening, and when the cover is opened, the closure element opens the drain opening, allowing the fluid to drain out of the housing.

Abstract: A fluid filter, particularly for cleaning lubricating oil for internal-combustion engines of motor vehicles, which includes a filter housing 10 with a screw cap 11 and an annular filter element 12 inserted into the filter housing 10. The filter element 12 is pushed onto a supporting tube 15, which in turn is locked to the cap 11 or the bottom of the filter housing 10. Arranged on the cap or on the bottom are detent tongues 18 which engage with detent tongues 20 of the supporting tube 1B. Guiding surfaces 21 are provided for the detent tongues of at least one element.

Abstract: A filter insert and a method for producing the same in which the filter insert has an accordion-folded filter medium. In a first operating step, folded edges are impressed on the filter medium. Subsequently, by glue application devices which are provided with glue application nozzles, at least two glue beads are applied to the surface of the filter medium and the folding is carried out subsequently. At least one of the glue application devices is movable transversely to the transport direction of the filter medium.

Abstract: The proposal is for a suction pipe consisting of a number of individual suction pipes (10, 16, 17, 18) connected on the intake side to a manifold (11). According to the invention, the manifold is made in one piece with the suction pipes by the blow-molding method.

Abstract: An air filter, particularly for ventilating the interior of motor vehicles, is provided. The air filter includes a housing having an unfiltered-air inlet and a clean-air outlet, as well as a filter medium folded in an accordion-like shape. The filter medium is arranged in a filter insert which has a surrounding seal. An adapter is integrated in the housing and also includes a surrounding sealing device to provide an effective seal between the unfiltered-air and clean-air sides of the housing. The filter insert is arranged in the adapter and is fixed in position via a cover flap of the housing.

Abstract: An activated carbon filter is provided for venting a fuel tank. The activated carbon filter consists of a housing which accommodates activated carbon packets. Via lines, the housing is connected, on the one hand, by way of a first connection with the fuel tank, and on the other hand, by way of a second connection with the intake pipe, particularly that of a combustion engine. A third connection connects the housing with the atmosphere. The housing has a first partition which extends between the connection for the atmosphere and the connection for the tank. At least one other partition is provided which forms at least one other chamber. Each of the chambers is filled with activated carbon.