Abstract: The present invention relates to a method for producing a component manufactured in part non-additively for a technical device, wherein a basic structure of the component with a predefined wall thickness is produced by means of a non-additive manufacturing method, wherein at least one region of the component is determined with the aid of an optimisation method, wherein in the at least one region, a supporting structure is applied to the basic structure by means of an additive manufacturing method.

Abstract: The present invention relates to a method for connecting tubes (221) of a shell and tube heat exchanger (200) to a tube bottom (230) of the shell and tube heat exchanger (200), wherein the tubes (221) and the tube bottom (230) are each made of aluminum or an aluminum alloy, and wherein the tubes (221) are connected to the tube bottom (230) by means of laser welding in a bonded manner.

Abstract: The invention relates to a process for producing a pipe fitting (10), for example a reduction piece, a pipe elbow or a branch, wherein a metallic material (11) is melted by heating, and wherein a plurality of material layers (12) is produced in a successive manner from the melted material (11), wherein the in each case produced material layer (12) is materially bonded to the in each case previous material layer (12), and wherein the pipe fitting (10) is formed from the material layers (12) bonded to one another. The pipe fitting (10) is produced by buildup welding, for example arc welding or beam welding.

Abstract: A method for producing a plate heat exchanger and the plate heat exchanger, particularly a soldered aluminium plate heat exchanger. In the method, a heat exchanger block is provided having a plurality of partition plates and edge strips arranged between the partition plates. A connection device is provided to be mounted on the heat exchanger block. A planar region for securing the connection device to the heat exchanger block is provided with at least one welded weld bead by means of a first weld. The connection device is welded onto the weld bead by means of a second weld. The welding method used for the first weld is a friction stir welding method.

Abstract: The present invention relates to a method for connecting tubes (125) of a tube bundle heat exchanger to a tube plate (130) of the tube bundle heat exchanger, wherein the tubes (125) are cohesively connected to the tube plate (130) by laser welding, during the course of which a laser beam (211) is generated and is focused on a location to be welded in a connecting region (250) between tube (125) and tube plate (130), wherein the laser beam (211) is moved so as to perform a first movement over the connecting region (250) and a second movement which is superposed on the first movement and which differs from the first movement, and wherein, by means of the second movement, melt bath dynamics are influenced in targeted fashion and/or a vapour capillary that forms is modified in targeted fashion.

Abstract: The present invention relates to a method for connecting tubes (221) of a shell and tube heat exchanger (200) to a tube bottom (230) of the shell and tube heat exchanger (200), wherein the tubes (221) and the tube bottom (230) are each made of aluminum or an aluminum alloy, and wherein the tubes (221) are connected to the tube bottom (230) by means of laser welding in a bonded manner.

Abstract: The invention relates to a device (1) for welding a first pipe segment (2) to a second pipe segment (3), wherein the device (1) can be inserted into the first and the second pipe segments (2, 3) along a longitudinal axis (L) of the device. Said device (1) has the following: a contact apparatus (6), which has a plurality of contact segments (7, 9), which can be moved radially with respect to the longitudinal axis (L) of the device (1) in order to bring the device in contact with the inside of the first pipe segment (2) and the second pipe segment (3), and a transmission apparatus (26), which is designed to convert an axial movement of the contact segments (7, 9) along the longitudinal axis (L) into the radial movement.

Abstract: A method for producing a plate heat exchanger and the plate heat exchanger, particularly a soldered aluminium plate heat exchanger. In the method, a heat exchanger block is provided having a plurality of partition plates and edge strips arranged between the partition plates. A connection device is provided to be mounted on the heat exchanger block. A planar region for securing the connection device to the heat exchanger block is provided with at least one welded weld bead by means of a first weld. The connection device is welded onto the weld bead by means of a second weld. The welding method used for the first weld is a friction stir welding method.

Abstract: A device for applying a cleaning fluid to a wheel of a vehicle in a vehicle washing installation using a spray nozzle and a wheel washing brush that is driven in rotation and can be moved by a guide between a rest position remote from a wheel and a cleaning position on the wheel. The device, an associated vehicle washing installation and method each permit economical application of the cleaning fluid matched to the size of the wheels to be cleaned. The method includes the steps of: a) determining the position of the wheel in the washing direction, b) determining the distance of the wheel from the device, c) moving the spray nozzle to the spraying position at the spraying distance from the wheel, d) spraying cleaning fluid onto the wheel using the spray nozzle (4) and moving the spray nozzle along the wheel in the washing direction and e) terminating the spraying operation when the front end of the wheel in the washing direction has been reached.

Abstract: A metering device for metering additives into treatment liquids of a vehicle treatment installation includes an exchangeable storage container and a metering pump connected to the storage container, said metering pump metering an additive contained in the storage container into the treatment liquid. The metering device according to the invention comprises an integrated storage tank which communicates with the metering pump and with the storage container, thereby removing the need for a complete evacuation of the storage container and allowing the timely and easy exchange of a completely evacuated storage container without having to shut the vehicle treatment installation down to replace an evacuated storage container for a filled storage container.

Abstract: The invention relates to a vehicle washing system (1) having a conveying device for transporting vehicles (2, 3) to be washed in a conveying direction (4) along a plurality of treatment devices (11?-14?), wherein at least two of the treatment devices (11?-14?) for washing the front faces, rear faces and side faces of the vehicles (2, 3) are oriented vertically, and a method for washing vehicles (2, 3) which are conveyed one behind the other in the conveying direction (4) through the vehicle washing system (1).

Abstract: A device for applying a cleaning fluid to a wheel of a vehicle in a vehicle washing installation using a spray nozzle and a wheel washing brush that is driven in rotation and can be moved by a guide between a rest position remote from a wheel and a cleaning position on the wheel. The device, an associated vehicle washing installation and method each permit economical application of the cleaning fluid matched to the size of the wheels to be cleaned. The method includes the steps of: a) determining the position of the wheel in the washing direction, b) determining the distance of the wheel from the device, c) moving the spray nozzle to the spraying position at the spraying distance from the wheel, d) spraying cleaning fluid onto the wheel using the spray nozzle (4) and moving the spray nozzle along the wheel in the washing direction and e) terminating the spraying operation when the front end of the wheel in the washing direction has been reached.

Abstract: The invention relates to a wheel guide rail (9; 10; 13; 14) for a car wash system for laterally delimiting a travel range (4) of a vehicle to be treated in the car wash system and a car wash system comprising treatment devices (1, 1?, 3, 3?) that can travel along a direction of travel (F) for a vehicle to be treated, a pair of wheel guide rails (10, 10?) disposed at the wash system floor (B) between the treatment devices (1, 1?, 3, 3?) and running in the direction of travel (F) and at a distance from one another perpendicular to the direction of travel (F), said guide rails delimiting a lateral travel range (4) for the vehicle.

Abstract: A rollover wash unit for a vehicle wash system that allows an efficient and space-saving transport and a method for mounting a rollover wash unit that allows an efficient, simple and fast mounting of the rollover wash unit in situ.

Abstract: The invention relates to a vehicle wash system comprising a first treatment unit (2) arranged on a frame (1) so as to be height-adjustable and at least one second treatment unit (3) arranged on the frame (1) so as to be height-adjustable. In order to reduce the components required for driving and controlling the treatment units (2, 3) the latter are coupled to a common drive motor (11) via a traction mechanism drive (12, 13, 14, 15) for their mutual adjustment.

Abstract: A rollover wash unit for a vehicle wash system includes interspaced lateral parts (2, 2?) fitted with guides (12, 12?), and a treatment device (7) that is received in the guide elements (8, 8?) via bearings (9, 9?), the guide elements being displaceable in the guides (12, 12?). In order to achieve an adaptation to the washing height, the guide elements (8, 8?) are configured to enable the bearings (9, 9?) to project beyond the guides (12, 12?) in a final position of the guide elements (8, 8?) in the guides (12, 12?), where the treatment device (7) projects upward beyond the lateral parts, (2, 2?) and/or an upper edge of a traverse (5) connecting the lateral parts (2, 2?), in an uppermost position of the guide elements (8, 8?).

Abstract: The invention relates to a wheel guide rail (9; 10) for a car wash system, comprising a machine flank (9c; 10c) that points upward from a wash system floor (B) in the installed state and runs along a direction of travel (F) of a vehicle to be treated, and a car wash system comprising treatment devices (1, 1?, 3, 3?) that can travel along a direction of travel (F) for a vehicle to be treated, a pair of wheel guide rails (10, 10?) disposed at the wash system floor (B) between the treatment devices (1, 1?, 3, 3?) and running in the direction of travel and at a distance from one another perpendicular to the direction of travel (F), said guide rails delimiting a lateral travel range (4) for the vehicle. The object of facilitating a safe, risk-free and damage-free treatment and cleaning of vehicles is met by the invention by a wheel guide rail (9; 10) in which the machine flank (9c; 10c) is designed such that it is tilted upward toward the vehicle (4), and by a car wash system comprising such wheel guide rails.

Abstract: The invention relates to a method for the joining of tube plates (10) and tubes (11) in a tube bundle heat transfer device with the help of a rotating friction tool. Here, the friction tool is rotatingly moved into the open end of a tube (11) surrounded by the tube plate (10) in the axial direction of said tube and pressed against the face of the tube (11) in the manner that the tube end (12) and the region of the tube plate (10) surrounding the tube end are plasticized and merge into a weld joint.

Abstract: The invention relates to a wheel guide rail (9; 10; 13; 14) for a car wash system for laterally delimiting a travel range (4) of a vehicle to be treated in the car wash system and a car wash system comprising treatment devices (1, 1?, 3, 3?) that can travel along a direction of travel (F) for a vehicle to be treated, a pair of wheel guide rails (10, 10?) disposed at the wash system floor (B) between the treatment devices (1, 1?, 3, 3?) and running in the direction of travel (F) and at a distance from one another perpendicular to the direction of travel (F), said guide rails delimiting a lateral travel range (4) for the vehicle.

Abstract: The invention relates to a vehicle wash system comprising a first treatment unit (2) arranged on a frame (1) so as to be height-adjustable and at least one second treatment unit (3) arranged on the frame (1) so as to be height-adjustable. In order to reduce the components required for driving and controlling the treatment units (2, 3) the latter are coupled to a common drive motor (11) via a traction mechanism drive (12, 13, 14, 15) for their mutual adjustment.