Hybrid thermodynamic compressor

A hybrid thermodynamic compressor for compressing a working fluid, the compressor comprising:

• one volumetric cylinder and one thermal cylinder connected to each other mechanically by a connecting rod system and pneumatically by a connection circuit;
• and
• one reversible electric machine connected to the connecting rod system, the volumetric cylinder comprising a cylindrical enclosure with a first piston which separates a first chamber from a second chamber,
• the thermal cylinder comprising a cylindrical enclosure with a second piston which separates a third chamber, called cold chamber, from a fourth chamber, which can be brought into thermal contact with a heat source to become a hot chamber, and thus generate a cycled movement in the thermal cylinder, the connection circuit connecting the second chamber with the third chamber,
• wherein the first piston is connected to a rotor by a first connecting rod assembly, and the second piston is connected, directly or indirectly, to said rotor by a second connecting rod assembly, with a predetermined angular offset provided by the connecting rod system between a cycle of the first piston and the cycle of the second piston,
• the volumetric cylinder being equipped with an inlet path with a first non-return valve and an outlet path with a second non-return valve, to deliver the working fluid at a second pressure,
• and wherein the power produced in the thermal cylinder is transmitted to the volumetric cylinder essentially via the connection circuit and not via the connecting rod system.