Heat engine

A heat engine, comprising:

• at least one Liquid Ring Rotating Casing Compressor (LRRCC) having a jacket adapted to rotate eccentrically around a rotor core, a fluid inlet and a fluid outlet;
• a combustion chamber in fluid communication with an output of said at least one LRRCC, and
• at least one expander having a fluid inlet and a fluid outlet, said fluid inlet of said at least one expander communicating with said combustion chamber;
• wherein:
• the jacket of the at least one LRRCC is articulated to the at least one expander so that the rotation of the at least one expander induces rotation for the LRRCC,
• the jacket is articulated to the rotor core via a mechanical transmission so that rotation of the jacket of the at least one LRRCC by the at least one expander induces rotation of the rotor core of the LRRCC, and
• a first heat exchanger is mechanically coupled by bearings to said jacket so as to rotate therewith and allow fluid communications between an output of the at least one LRRCC and the first heat exchanger for receiving water heated by the at least one LRRCC and returning cooled water for injection into the at least one LRRCC so as to maintain the at least one LRRCC isothermal.