Hydraulic valve with switching regeneration circuit

A hydraulic valve assembly for supplying and receiving pressurized fluid from a fluid operated device, the hydraulic valve assembly being switchable between a regenerative mode and a non-regenerative mode, the hydraulic valve assembly comprising:

• a valve body having fluid passages forming a fluid flow path, the fluid passages including:
• an inlet passage for fluidly connecting to a source of pressurized fluid;
• a work port supply passage fluidly connected to a supply work port for supplying pressurized fluid to the fluid operated device;
• a work port return passage fluidly connected to a return work port for receiving pressurized fluid from the fluid operated device;
• a discharge passage for discharging pressurized fluid from the return passage to outside of the valve body;
• and
• a regenerative shift passage for fluidly connecting the work port return passage to the work port supply passage in the regenerative mode, and for fluidly connecting the work port return passage to the discharge passage in the non-regenerative mode;
• a main control valve extending through at least a portion of the valve body, the main control valve being movable relative to the valve body to control the direction of fluid flow through the valve body;
• and
• a pressure control valve disposed in the fluid flow path between the regenerative shift passage and the discharge passage;
• wherein the pressure control valve is in fluid pressure communication with the return work port, and is configured to operate based on the fluid pressure at the return work port;
• wherein the pressure control valve is configured to activate the regenerative mode in response to fluid pressure at the return work port being less than a predetermined pressure setpoint of the pressure control valve, such that the pressure control valve closes the flow path from the regenerative shift passage to the discharge passage to prevent return work port flow from being discharged from the valve body, and enables opening of the fluid flow path from the regenerative shift passage to the work port supply passage to allow return work port flow to be supplied to the supply work port;
• and
• wherein the pressure control valve is configured to activate the non-regenerative mode in response to fluid pressure at the return work port meeting or exceeding the predetermined pressure setpoint of the pressure control valve, such that the pressure control valve opens the flow path from the regenerative shift passage to the discharge passage to allow return work port flow to be discharged from the valve body to prevent return work port flow from being supplied to the supply work port.