Hot fluid expansion engine (600) comprising a plurality of actuation modules (100) arranged in a star pattern around a central shaft (610), each module (100) comprising: - a motor piston (110) delimiting in a first chamber (111) a variable volume working c...

The engine (1) has an engine block (10) movable in rotation around a rotation axis and comprising blind end cylinders (12-16) mounted on a casing. The cylinders are closed by movable pistons (20-24) defining variable sized sealed chambers (122-162) in the ...