| 摘要 |
A hydraulic system (10) adapted to recover inertial energy is disclosed. The hydraulic system includes a pump (22), a variable displacement pump/motor (28) having an input/output shaft (82), an accumulator (30), and a valve arrangement (32,34,36,38,39,40,42). The valve arrangement is operable in: a) a first mode where the variable displacement pump/motor is driven by the pump to rotate the input/output shaft and the load; b) a second mode where the variable displacement pump/motor uses inertial energy from a deceleration of the load to charge the accumulator; and c) a third mode where the variable displacement pump/motor is driven by the accumulator to rotate the input/output shaft and the load. The hydraulic system also includes a controller (50) for controlling operation of the pump, the variable displacement pump/motor and the valve arrangement. |
