A holding system (101, 102, 103) for holding at least one pipe, comprising a comb including a bar and parallel teeth perpendicular to the bar. A blocking device (30) consisting essentially of a pin, serves to prevent a pipe passing between two of the teeth from moving away from the bar.

The holding system further comprises two supports (40A, 40B), positioned at the ends of the comb, and which hold the comb so as to allow rotation thereof around the axis of the bar.

A method for mounting a heat exchanger (100) comprising such a holding system.

A heat exchanger is disclosed for the exhaust gas train of a motor vehicle. The heat exchanger includes a bundle of separately formed exhaust gas carrying exchanger tubes that is disposed in a closed housing formed separately, a coolant flowing through the housing and around the outside of the exchanger tubes. A bandage is disposed on the bundle of exchanger tubes mechanically connecting a plurality of the exchanger tubes to militate against an oscillation of the exchanger tubes.

Radiator systems are provided. A radiator system may have a housing having a support structure, one or more stationary panels connected to the support structure and having insulation, and an internal volume at least partially defined by the one or more stationary panels, by a first opening, and by a second opening, a plurality of articulating radiator panels, each articulating radiator panel being movably connected to the support structure, having an inner surface with one or more coolant channels and/or one or more heat pipes, having an exterior surface opposite the inner surface, and having insulation, and a movement mechanism connected to the support structure and the plurality of articulating radiator panels, and configured to move each of the articulating radiator panels with respect to the support structure.