To provide a system and a method for accumulating hydraulic fluid.
The hydraulic system contains a hydraulic actuator including a first chamber and a second chamber. An accumulator is in fluid communication with the hydraulic actuator and is configured to store a selected amount of pressurized fluid which is released from at least one of the first and second chambers in the hydraulic actuator. A directional control valve is disposed between the hydraulic actuator and the accumulator. The directional control valve can be operated to selectively connect the accumulator with either of the first chamber or the second chamber, to move the hydraulic actuator by allowing the pressurized fluid to flow from the accumulator to the hydraulic actuator. The directional control valve can also be operated to perform ride control by selectively connecting the accumulator to either of the first chamber or the second chamber in the hydraulic actuator.
KRONE JOHN
NIPPERT ANDREW
CATERPILLAR MITSUBISHI LTD
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