| 摘要 |
<p>The invention concerns a heat exchanger (1) comprising a substantially cylindrical metallic sheet outer casing (2), having a side wall traversed by orifices (3), a plurality of tubes (12a, 12b, 12c) fixed with retaining means (14a, 14b, 14c, 14d), arranged substantially parallel, inside the casing (2), an exhaust gas inlet duct (1) in the heat exchanger (1) casing (2), an exhaust gas evacuating duct (6) and means for conveying exhaust gases from the inlet duct (4) to the evacuation duct (6), along a path passing successively, in axial direction, through each of the tubes of the plurality of tubes (12a, 12b, 12c) along its whole length. Preferably, the tubes are fixed at their ends in through orifices of cups (14a, 14b, 14c, 14d) fixed along the entire length of the metal casing (2) and defining exhaust gas dispensing manifolds (15a, 15b, 14c, 15d) in the heat exchanger (1).</p> |
