recovery system of the heat energy of the hot gas (s) and / or smoke (s), application to the recovery of the energy of fumes fouling, especially from internal combustion engines.

A new energy recovery system of the heat of hot gas (s) and / or smoke (s) that implements the following steps: - heat exchange between hot gas (s) and / or smoke (s) and the evaporator of at least a two-phase thermosyphon or at least one heat pipe assisted by gravity, immersed in a fluidized bed. The exchange surface of the thermosiphon can be developed through the vanes; - heat transfer to the outside of the fluidized bed through (the) thermosiphon (s) two-phase (s) or (of) heat pipe (s) present (s) by gravity; - heat transfer between the condenser of two-phase thermosyphon or (of) heat pipe (s) present (s) by gravity, and an energy conversion system.