Flushing circuit for a hydraulic machine

An assembly comprising:

• a hydraulic machine comprising a first assembly and a second assembly that are movable in rotation relative to each other along a main axis, the first assembly comprising a shaft and the second assembly comprising a casing,
• said hydraulic machine having three portions extending successively from a proximal end to a distal end along the main axis,
• a proximal portion, comprising a distributor and fluid supply and discharge ducts,
• a middle portion, comprising a cylinder block and a cam,
• a distal portion, comprising bearings,
• said hydraulic machine having an internal volume and comprising a circuit for sweeping the internal volume, said sweep circuit having a fluid inlet orifice in the proximal portion, a fluid outlet orifice in the proximal portion, said sweep circuit being configured so as to form a primary sweep stream circulating from the inlet orifice successively in the proximal portion, in the middle portion and in the distal portion of the hydraulic machine, then in the middle portion and in the proximal portion up to the outlet orifice (220).