Volumetric variable displacement machine

A volumetric variable displacement machine interacting with an operating fluid, said machine being a motor with axial pistons or a pump with axial pistons and comprising:

• i) means (2) interacting with the operating fluid;
• ii) a housing casing (3) housing means (2) interacting with the operating fluid;
• iii) actuating means (4) for regulating a displacement of the machine;
• iv) a control unit (5) for controlling the actuating means (4);
• v) a detection sensor (6) for detecting a parameter associated with the adopted displacement of the machine and operationally connected to the control unit (5);
• characterized in that it comprises a protective casing (7) protecting the control unit (5) that is integrated into or constrained physically on said housing casing (3);
• said detection sensor (6) being placed inside the protective casing (7).