摘要:
A heat exchanger is disclosed, comprising a block having pipes and ribs and at least one pipe base provided with receiving openings, wherein the pipes have pipe ends, which can be held in the receiving openings and form pipe/base connections with the pipe base, the connections being at least partially reinforced by an additional sheet metal part located on the side of the pipe base facing the block, wherein the sheet metal part has insertion openings for the pipe ends.
摘要:
The invention relates to a casing for holding a coolant for heat exchanger (1) for motor vehicles, said casing having two side walls (22, 24 and 22a, 24a) two front walls (26, 28, and 26a, 28a), a cover (18 and 18a) and a base (20 and 20a) lying opposite the cover (18 and 18a), said base being provided with one or more openings (60) for receiving tubes, in particular connecting tubes such as flat tubes. According to the invention, the base (20 and 20a) and at least one of the two side walls (26, 28 and 26a, 28a) consist of a one-piece shaped part, produced in a forming method.
摘要:
The invention relates to a heat exchanger having a multiplicity of heat-exchanger tubes in which a fluid, such as a coolant, can flow, and whose ends are held in collecting tanks. At least two collecting volumes which are separated from one another by an insert are arranged at least in one collecting tank. A separating cut which separates the insert and therefore also the collecting tank is formed in the heat exchanger.
摘要:
An apparatus for protecting a keyboard and includes a sound transformer placed in the keyboard and a sound receiver placed outside the keyboard to receive a signal radiated from the sound transformer. The signal is then analyzed to determine if the power of the radiated signal has dropped below a threshold value, indicating potential tampering of the keyboard.