Hydraulic System with Reservoir Surge Energy Recovery and Inlet Flow Supplement for Surface Engaging Machinery

A surface engaging machine comprising:

• a plurality of surface engaging units, each surface engaging unit having a respective unit cylinder actuator;
• a source of fluid that is fluidly coupled to respective unit cylinder actuators of the plurality of surface engaging unit;
• and
• an intensifier that is fluidly coupled to the respective unit cylinder actuators, wherein the intensifier (i) receives fluid from a first subset of unit cylinder actuators of the respective unit cylinder actuators, and (ii) provides fluid having an increased pressure level relative to pressure level of received fluid to a second subset of unit cylinder actuators of the respective unit cylinder actuators, thereby supplementing fluid from the source.

A method comprising:

• providing fluid from a source of fluid to a plurality of unit cylinder actuators of a surface engaging machine, each unit cylinder actuators having a respective piston movable within a respective cylinder;
• receiving fluid from a first subset of unit cylinder actuators of the plurality of unit cylinder actuators having pistons moving in a first direction;
• intensifying pressure level of fluid received from the first subset of unit cylinder actuators;
• and
• providing fluid having intensified pressure level to a second subset of unit cylinder actuators of the plurality of unit cylinder actuators having pistons moving in a second direction, thereby supplementing fluid from the source.