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公开(公告)号:US09458604B2
公开(公告)日:2016-10-04
申请号:US14146994
申请日:2014-01-03
Applicant: CATERPILLAR INC.
Inventor: Jiao Zhang , Michael Schwab , Pengfei Ma
CPC classification number: E02F9/2217 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B21/14
Abstract: A hydraulic apparatus and a method of operating the hydraulic apparatus are disclosed. The hydraulic apparatus includes a flow control module, a first pump fluidly coupled to the flow control module via a first conduit, a first rotating group fluidly coupled to the flow control module via a second conduit, a first actuator fluidly coupled to the flow control module, a second actuator fluidly coupled to a second pump, a first accumulator, and a controller operatively coupled to the flow control module, the first charge valve, and the discharge valve. The first rotating group is configured to perform a pumping function and a motor function. The first accumulator is in selective fluid communication with the first actuator via a third conduit and a first charge valve, the second actuator via a fourth conduit and the first charge valve, and the first rotating group via a discharge valve.
Abstract translation: 公开了一种液压装置和操作该液压装置的方法。 液压装置包括流量控制模块,经由第一导管流体耦合到流量控制模块的第一泵,通过第二导管流体耦合到流量控制模块的第一旋转组件,流体耦合到流量控制模块的第一致动器 ,流体地联接到第二泵的第二致动器,第一蓄能器和可操作地耦合到流量控制模块,第一充气阀和排放阀的控制器。 第一旋转组被配置为执行泵送功能和马达功能。 第一蓄能器经由第三管道和第一充气阀与第一致动器选择性地流体连通,第二致动器经由第四管道和第一充气阀,以及经由排出阀的第一旋转组。