Power transmission

For use in hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, and a variable displacement pump with load sensing control for supplying fluid to said actuator,

• a meter-in valve to which the fluid from the pump is supplied,
• said valve being pilot controlled,
• a pair of lines extending from said meter-in valve to the respective openings of an actuator,
• a meter-out valve associated with each line to the actuator for controlling the flow out of said actuator,
• each said meter-out valve being adapted to be pilot operated by the pilot pressure from a pilot controller.

A hydraulic control system comprising

• a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions,
• a variable displacement pump with load sensing control for supplying fluid to said actuator,
• a meter-in valve to which the fluid from the pump is supplied,
• said valve being pilot controlled,
• a pilot controller for alternately supplying fluid at pilot pressure to said meter-in valve for controlling the direction of movement of the meter-in valve,
• a pair of lines extending from said meter-in valve to said respective openings of said actuator,
• a meter-out valve associated with each opening of the actuator for controlling the flow out of said actuator,
• each said meter-out valve being pilot operated by the pilot pressure from said controller.

A hydraulic control system comprising

• a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions,
• a pump for supplying fluid to said actuator,
• a meter-in valve to which the fluid from the pump is supplied,
• said valve being pilot controlled,
• a pilot controller for alternately supplying fluid at pilot pressure to said meter-in valve for controlling the direction of movement of the meter-in valve,
• a pair of lines extending from said meter-in valve to said respective openings of said actuator,
• a meter-out valve associated with each opening of the actuator for controlling the flow out of said actuator,
• each said meter-out valve being pilot operated by the pilot pressure from said controller,
• said meter-in valve, meter-out valves and associated lines being mounted in a single body.

For use in a hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, and a variable displacement pump with load sensing control for supplying fluid to said actuator,

• a meter-in valve to which the fluid from the pump is supplied,
• said valve being pilot controlled,
• a pair of lines extending from said meter-in valve for connection to the respective openings of an actuator,
• a meter-out valve associated with each line to the actuator for controlling the flow out of said actuator,
• each said meter-out valve adapted to be pilot operated by the pilot pressure from a pilot controller,
• said meter-in valve, meter-out valves and associated lines being mounted in a single body.