中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.019 seconds)

    Hybrid apparatus and method for hydraulic systems
    3.
    发明授权
    Hybrid apparatus and method for hydraulic systems 有权
    液压系统的混合装置和方法

    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

    IPC: F15B1/02 ,  E02F9/22 ,  F15B21/14

    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。

    Hydraulic System Recovering Swing Kinetic and Boom Potential Energy
    4.
    发明申请
    Hydraulic System Recovering Swing Kinetic and Boom Potential Energy 有权
    液压系统恢复摆动动力和动能潜力

    公开(公告)号：US20160281330A1

    公开(公告)日：2016-09-29

    申请号：US14668678

    申请日：2015-03-25

    Applicant: Caterpillar Inc.

    Inventor： Tonglin Shang ,  Jiao Zhang ,  Pengfei Ma ,  Dayao Chen

    IPC: E02F9/22 ,  E02F9/20 ,  E02F3/42 ,  E02F3/32

    CPC classification number: E02F9/2217 ,  E02F3/32 ,  E02F3/425 ,  E02F9/123 ,  E02F9/128 ,  E02F9/2004 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B2211/20507 ,  F15B2211/212 ,  F15B2211/7058 ,  F15B2211/7142 ,  F15B2211/88

    Abstract: Swing kinetic and boom potential energy may be recovered in a machine having a movable work tool, a swing motor for rotating the work tool, a hydraulic cylinder for raising and lowering the work tool, a pump selectively connected to the swing motor and the hydraulic cylinder, and a power source outputting power to drive the pump. The machine may further include a first accumulator, a swing charge valve having a charge set pressure, and a boom charge valve. The swing charge valve selectively fluidly connect the swing motor to the first accumulator, and open to fluidly connect the swing motor to the first accumulator when a swing motor fluid pressure is greater than a charge set pressure of the swing charge valve. The boom charge valve may selectively fluidly connect a head-end chamber of the hydraulic cylinder to the first accumulator when the work tool is lowered.

    Abstract translation: 在具有可移动工作工具的机器，用于旋转工作工具的回转马达，用于升高和降低作业工具的液压缸，可选择地连接到回转马达和液压缸 以及输出驱动泵的动力的电源。 机器还可以包括第一蓄能器，具有充电设定压力的摆动充气阀和吊杆充气阀。 摆动充气阀选择性地将回转马达流体地连接到第一蓄能器，并且当回转马达流体压力大于摆动充气阀的充电设定压力时，打开以将回转马达流体连接到第一累加器。 当工作工具下降时，吊杆充气阀可以选择性地将液压缸的前端室流体连接到第一蓄能器。

    Boom Cylinder Dig Flow Regeneration
    6.
    发明申请
    Boom Cylinder Dig Flow Regeneration 有权
    起重气缸挖掘流量再生

    公开(公告)号：US20150197915A1

    公开(公告)日：2015-07-16

    申请号：US14155587

    申请日：2014-01-15

    Applicant: Caterpillar, Inc.

    Inventor： Jiao Zhang ,  Pengfei Ma ,  Vickram Murugesan ,  Tonglin Shang ,  Bryan Jacob Hillman

    IPC: E02F3/43 ,  E02F3/42 ,  F15B21/14 ,  E02F9/22

    CPC classification number: F15B21/14 ,  E02F9/2228 ,  E02F9/2296 ,  F15B11/006 ,  F15B11/024 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/7053 ,  F15B2211/761

    Abstract: A hydraulic system and methods for conserving energy in such system is disclosed. The hydraulic system includes a hydraulic actuator having a head end, a rod end and a piston disposed therebetween. The system also includes a pump that pumps fluid to the actuator, a first valve disposed downstream of the rod end, and a second valve disposed between the pump and the head end of the actuator. When the system is in a load overrunning condition, the second valve is partially closed to restrict the flow of a combined fluid. The combined fluid including fluid received from the pump and fluid received from the rod end of the actuator. When the system is in the light resistive load condition, the second valve is open to allow the combined fluid to flow through the second valve.

    Abstract translation: 公开了一种在这种系统中节约能量的液压系统和方法。 液压系统包括具有头端，杆端和设置在其间的活塞的液压致动器。 该系统还包括将流体泵送到致动器的泵，设置在杆端下游的第一阀，以及设置在泵和致动器的头端之间的第二阀。 当系统处于负载超限状态时，第二阀部分关闭以限制组合流体的流动。 包括从泵接收的流体和从致动器的杆端接收的流体的组合流体。 当系统处于轻负载状态时，第二阀打开以允许组合的流体流过第二阀。

    Energy recovery system having integrated boom/swing circuits
    10.
    发明授权
    Energy recovery system having integrated boom/swing circuits 有权
    能量回收系统具有集成的动臂/回转回路

    公开(公告)号：US09290912B2

    公开(公告)日：2016-03-22

    申请号：US13665384

    申请日：2012-10-31

    Applicant: Caterpillar Inc.

    Inventor： Gang Victor Wen ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F16D31/02 ,  E02F9/22 ,  F15B1/027 ,  F15B11/17 ,  F15B13/06 ,  F15B21/14 ,  E02F9/12

    CPC classification number: E02F9/2296 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2292 ,  F15B1/027 ,  F15B1/0275 ,  F15B11/17 ,  F15B13/06 ,  F15B21/14 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system for a machine is disclosed. The energy recovery system may have a boom circuit with at least a one linear actuator configured to move a work tool, and a boom accumulator configured to selectively collect pressurized fluid from the at least one linear actuator and to discharge pressurized fluid back to the at least one linear actuator. The energy recovery system may also have a swing circuit with a swing motor configured to move the work tool, and a swing accumulator configured to selectively collect pressurized fluid from the swing motor and discharge pressurized fluid back to the swing motor. The energy recovery system may further have a common accumulator passage fluidly connecting the boom accumulator and the swing accumulator.

    Abstract translation: 公开了一种用于机器的能量回收系统。 能量回收系统可以具有吊杆回路，其中至少一个线性致动器被配置为移动作业工具;以及悬臂收集器，其构造成选择性地从至少一个线性致动器收集加压流体，并将加压流体排回到至少 一个线性执行器。 能量回收系统还可以具有摆动回路，摆动马达构造成移动作业工具;摆动储存器构造成选择性地收集来自回转马达的加压流体，并将加压流体排放回到回转马达。 能量回收系统可以进一步具有通过流体连接起重臂蓄能器和摆动蓄能器的公共蓄能器通道。

Patent Agency Ranking