Importance

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Abstract

A hydraulic actuator control system performs pressure compensation in the system by monitoring the pressure differential across a meter-out device. A flow of fluid can be directed from a pump through a meter-in device to a chamber of an actuator via a first port. In response to the flow of fluid entering the first port of the actuator, a return flow of fluid can be directed from a second port of the actuator through the meter-out device to a tank. The meter-in device can monitor a pressure differential across the meter-out device. The meter-in device can control the flow of the fluid from the pump to the actuator to place the pressure differential across the meter-out device within a desired range.

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First Claim