论文部分内容阅读
Ｄｅｅｒｓ公司的挖掘机系列中新增加了二个大机型。二者都采用了Ｐｏｗｅｒｗｉｚｅ发动机／液压管理系统，由二台变量轴向柱塞泵驱动。驾驶员可以在三种调节发动机转速的动力模式和四种相互独立的工作方式中选择。５５０ＬＣ和７５０型最大伸距为１４．４６ｍ和１５．７ｍ。
Deers has added two new models to its range of excavators. Both use the Powerwize engine/hydraulic management system, which is driven by two variable displacement axial piston pumps. The driver can choose between three power modes that regulate engine speed and four independent modes of operation. The maximum reach of the 550LC and 750 models is 14.46m and 15.7m.