Patent ID: 8561386

Claim:
A wall-cooling device for cooling a wall having a first face subjected to a heat source and a second face along which an outer fluid flows at a temperature that is lower than a temperature T in order to maintain said wall at a temperature that is substantially equal to the temperature T, the wall-cooling device also comprising at least one cooling part including a fastener portion and a cooling portion, said part being made of a thermally-conductive shape-memory alloy having a transition temperature equal to said temperature T, said fastener portion including fastener means for fastening the fastener portion rigidly on the second face of said wall, said cooling portion being shaped so as to take up a first position that is substantially parallel to said wall when the temperature of the wall is lower than said temperature T and, if the temperature of the wall is at least equal to the temperature T, so as to take up a second position in which a mean plane of said cooling portion defines, relative to a plane tangential to said wall, a dihedral angle lying in the range 45° to 90°.