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HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT
Provided is a hydraulic circuit of construction equipment, including a boom cylinder for controlling ascending and descending movement of a boom, which includes a valve unit having a first control valve configured to control a large chamber of the boom cylinder to selectively communicate with a small chamber of the boom cylinder, a second control valve configured to control the large chamber to selectively communicate with an oil tank, a third control valve configured to control the large chamber to selectively communicate with an accumulator, and a fourth control valve configured to control apart of hydraulic oil flowing to the accumulator to selectively flow to an assist motor.
提供了一种建筑设备的液压回路,包括用于控制动臂的上升和下降移动的动臂油缸,所述液压回路包括阀单元,所述阀单元具有:第一控制阀,所述第一控制阀被构造成控制动臂油缸的大腔室以选择性地与动臂油缸的小腔室连通;第二控制阀,所述第二控制阀被构造成控制所述大腔室以选择性地与油箱连通;第三控制阀,所述第三控制阀被构造成控制所述大腔室以选择性地与蓄能器连通;以及第四控制阀,所述第四控制阀被构造成控制流向所述蓄能器的液压油的一部分以选择性地流向辅助马达。
HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT
Provided is a hydraulic circuit of construction equipment, including a boom cylinder for controlling ascending and descending movement of a boom, which includes a valve unit having a first control valve configured to control a large chamber of the boom cylinder to selectively communicate with a small chamber of the boom cylinder, a second control valve configured to control the large chamber to selectively communicate with an oil tank, a third control valve configured to control the large chamber to selectively communicate with an accumulator, and a fourth control valve configured to control apart of hydraulic oil flowing to the accumulator to selectively flow to an assist motor.
提供了一种建筑设备的液压回路,包括用于控制动臂的上升和下降移动的动臂油缸,所述液压回路包括阀单元,所述阀单元具有:第一控制阀,所述第一控制阀被构造成控制动臂油缸的大腔室以选择性地与动臂油缸的小腔室连通;第二控制阀,所述第二控制阀被构造成控制所述大腔室以选择性地与油箱连通;第三控制阀,所述第三控制阀被构造成控制所述大腔室以选择性地与蓄能器连通;以及第四控制阀,所述第四控制阀被构造成控制流向所述蓄能器的液压油的一部分以选择性地流向辅助马达。
HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT
用于建筑设备的液压回路
KU BON-SEUK (Autor:in)
19.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING