| 摘要 |
The device comprises a casing 4 traversed axially by a sleeve 11 engaged on the exhaust pipe 2. The sleeve 11 carries radial partitions which, inside the casing 4, define successively connected compartments through which the cold air drawn in by the fan 6 must pass in a zig-zag path before being delivered, in the hot state, into the cab 8. <IMAGE>
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