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公开(公告)号：US20130081382A1
公开(公告)日：2013-04-04
申请号：US13249932
申请日：2011-09-30
IPC分类号： F16D31/02
CPC分类号： F15B11/024
摘要： A hydraulic system is disclosed. The hydraulic system may have a pump, and a hydraulic actuator having a first chamber and a second chamber. The hydraulic system may also have a first pump passage fluidly communicating the pump with the first chamber, a second pump passage connected to the pump, and a regeneration valve. The regeneration valve may be movable from a first position at which the second pump passage is connected to the second chamber and the second chamber is isolated from the first chamber, to a second position at which the second pump passage is blocked and the second chamber is connected to the first chamber.
摘要翻译： 公开了一种液压系统。 液压系统可以具有泵，以及具有第一室和第二室的液压致动器。 液压系统还可以具有将泵与第一室流体连通的第一泵通道，连接到泵的第二泵通道和再生阀。 再生阀可以从第二泵通道连接到第二室的第一位置和第二室与第一室隔离，到第二位置，第二泵通道被阻塞，第二室是 连接到第一个室。
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2.发明申请公开(公告)号：US20130098463A1
公开(公告)日：2013-04-25
申请号：US13278491
申请日：2011-10-21
CPC分类号： E02F9/2292 , E02F9/2235 , E02F9/2242 , E02F9/2285 , Y10T137/0379 , Y10T137/85954
摘要： A hydraulic system is disclosed. The hydraulic system may have a unidirectional variable displacement first pump, a first hydraulic actuator connected to the first pump via a closed-loop first circuit, a unidirectional variable displacement second pump, and a second hydraulic actuator connected to the second pump via a closed-loop second circuit. The hydraulic system may also have a third pump selectively connectable in closed-loop manner to the first or second circuits, and a first valve disposed between the first hydraulic actuator and the first pump and configured to selectively direct fluid from the first circuit to the second and third pumps.
摘要翻译： 公开了一种液压系统。 液压系统可以具有单向可变排量的第一泵，经由闭环第一回路连接到第一泵的第一液压致动器，单向可变排量第二泵和经由闭环回路连接到第二泵的第二液压致动器， 回路第二回路。 液压系统还可以具有可选择性地以闭环方式连接到第一或第二回路的第三泵，以及设置在第一液压致动器和第一泵之间的第一阀，并且构造成选择性地将流体从第一回路引导到第二阀 和第三台泵。
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公开(公告)号：US20130098013A1
公开(公告)日：2013-04-25
申请号：US13278745
申请日：2011-10-21
IPC分类号： F15B11/17
CPC分类号： F15B11/17 , E02F9/2242 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B2211/20523 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/265 , F15B2211/3144 , F15B2211/329 , F15B2211/7053 , F15B2211/7058 , Y02P80/13
摘要： A hydraulic system is disclosed. The hydraulic system may have a plurality of pumps with unidirectional functionality and being variable displacement, a common discharge passage connected to the plurality of pumps, and a common intake passage connected to the plurality of pumps. The hydraulic system may also have at least one actuator connected in closed-loop manner to the common discharge and common intake passages, and a switching valve associated with the at least one actuator and disposed between the at least one actuator and the common discharge and intake passages. The hydraulic system may additionally have at least one isolation valve configured to selectively isolate a portion of the common discharge passage and a portion of the common intake passage associated with one pump of the plurality of pumps from another pump of the plurality of pumps.
摘要翻译： 公开了一种液压系统。 液压系统可以具有多个具有单向功能并具有可变排量的泵，连接到多个泵的公共排放通道以及连接到多个泵的公共进气通道。 液压系统还可以具有至少一个致动器，其以闭环方式连接到公共排放和公共进气通道，以及与至少一个致动器相关联并设置在至少一个致动器和公共排放和进气口之间的切换阀 段落。 液压系统可以另外具有至少一个隔离阀，该隔离阀构造成选择性地将公共排放通道的一部分和与多个泵中的一个泵相关联的公共进气通道的一部分与多个泵中的另一个泵隔离。
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