Abstract: A method and apparatus for producing a floor for a heat exchanger may include supplying a material strand to a tool and at least partially introducing a passage of the floor into the material strand by at least one stamp of the tool. The material strand may be advanced by a predetermined distance in a longitudinal direction. The introducing and advancing may be repeated until a predetermined number of passages has been introduced into the floor.

Abstract: A collector tank for a heat exchanger of an automotive cooling system includes a one-piece tank element comprising a first collecting region and a second collecting region, wherein at least one of the first collecting region and the second collecting region comprises a projection; a base that closes off the collecting regions of the tank element, the base comprising at least one channel; a sealing element disposed within the at least one channel; and a stress generating means located adjacent to the channel and clamping at least a portion of the one-piece tank element to the base such that the sealing element is compressed between the projection and the base within the channel. The stress generating means is a means selected from the group consisting of a tensile stress generating means, a compressive stress generating means, and a combination thereof.

Abstract: A collecting tank for a heat exchanger pertaining to a motor vehicle cooling installation includes a tank element. The tank element includes at least two collecting regions for receiving fluid, the receiving regions being embodied together as a single component and being outwardly sealed by a sealing element, and a bottom for closing the collecting regions. A sealing arrangement is provided between the tank element and the bottom, between two adjacent collecting regions. The sealing arrangement includes exactly one sealing element which, in addition to sealing between the two collecting regions, is used to seal the arrangement towards the outside. The sealing element is preferably arranged in a plane in the collecting tank, especially in a continuous channel.

Abstract: The invention relates to a collector tank (2), especially for a heat exchanger (1) of an automotive cooling system. Said collectors tank comprises a tank element (3) which is constituted of at least two integral and fluid receiving collector areas (4), and a bottom (5) said collector areas (4) of the tank element (3). A sealing arrangement (6) is provided between two adjacent collector areas between the tank element (3) and the bottom (5). The invention is characterized in that at least one application force generating means (10) and/or compressive force generating means is provided between the bottom (5) and the tank element (3) in the area of two adjacent collector areas (4) and adjacent to the sealing arrangement (6).

Abstract: The invention relates to a collecting tank (1), especially for a heat exchanger (1) pertaining to a motor vehicle cooling installation. Said collecting tank comprises a tank element (3) consisting of at least two collecting regions (4) for receiving the fluid, said receiving regions being embodied together as a single component and outwardly sealed by means of a sealing element, and a bottom (5; 65; 75) for closing said collecting regions (4) of the tank element (3). A sealing arrangement (6) is provided between the tank element (3) and the bottom (5; 65; 75), between two adjacent collecting regions (4), said sealing arrangement (6) comprising exactly one sealing element (7; 67; 77) which, in addition to sealing between the two collecting regions (4), is also used to seal the arrangement towards the outside. Said sealing element (7; 67; 77) is preferably arranged in a plane in the collecting tank (2; 62; 72), especially in a continuous channel (8; 68; 78).