| 摘要 |
A heat exchanger comprising stacked flat pipes (4,6,8) provided with outer (18) and inner (16) surface-increasing means, members (20) for closing the pipe ends, a fluid inlet (28) and a fluid outlet, a distribution channel (32) and a collection channel, and attachment members (34); the pipe end portions being widened and abutting against each other. A method for producing said heat exchanger, characterized by the following steps: widening the end portions of the pipes, punching the fluid inlet hole, punching the holes for the distribution and collection channels, arranging the closure members at the pipe ends, stacking the pipes, placing the surface-increasing means between the pipes, arranging the attachment members in their respective places, fixing the different components to each other and connecting them by hardsoldering. <MATH> |
