Hydraulic circuit having a combined compensation and energy recovery function

A hydraulic circuit having a function of compensation and energy recovery, comprising:

• a distribution module for distributing hydraulic fluid, including a plurality of spools for actuating a respective double-acting utility, wherein:
• each spool defines an inlet channel and a drain channel,
• a plurality of three-way compensated regulator devices, each connected to a respective spool, wherein:
• each regulator device comprises a respective first channel connected to the drain channel of the respective spool,
• each regulator device comprises a respective second channel connected to a drain;
• a variable flow rate or pressure feeding assembly configured so as to provide a flow rate of operative fluid to the inlet channel to actuate a hydraulic actuator of the utility;
• an energy recovery device connected to a respective third channel of the three-way compensated regulator devices;
• wherein said spool comprises an inlet recess and a drain recess, said inlet recess and said drain recess being configured so that the flow rate of fluid inlet to the utility is equal to or less than that outlet therefrom, possibly net of a correction factor associated with the dimensional ratio between differential areas of the hydraulic actuator of the utility, the spool being configured and connectable to the utility so that there is a simultaneous passage of fluid through the inlet recess and the drain recess;
• wherein the hydraulic circuit further comprises a respective first driving channel and a second driving channel configured so that a pressure taken upstream of the drain recess acts on a first side of the regulator device, and so that a pressure taken downstream of the drain recess in the first channel of the regulator device acts on a second side of the regulator device, opposite the first side, and an additional force.