| 摘要 |
The invention relates to a heat exchanger ( 1 ), especially for motor vehicles, which comprises flat pipes ( 2 ) through whose interior a first fluid (FL 1 ) flows and that can be impinged upon externally by a second fluid (FL 2 ). The flat pipes ( 2 ) are substantially disposed at an angle to the direction of flow (S 2 ) of the second fluid (FL 2 ) and parallel relative one another and are spaced apart so as to configure flow paths for the second fluid (FL 2 ) that extend through the heat exchanger. Cooling ribs ( 3 ) are disposed in the flow paths and extend between respective adjacent flat pipes ( 2 ). A plurality of wavy ribs ( 3 ) are provided as the cooling ribs. These wavy ribs are disposed one behind the other in the direction of flow (S 2 ) of the second fluid (FL 2 ) and are off-set from one another in the direction of flow (S 1 ) of the first fluid (FL 1 ).
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