会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY
    • 建筑机械液压系统
    • US20150113970A1
    • 2015-04-30
    • US14399059
    • 2012-05-21
    • Man-Seuk Jeon
    • Man-Seuk Jeon
    • E02F9/22F15B11/16E02F9/20F15B11/024F15B13/02F15B13/06F15B11/17
    • E02F9/2292E02F3/437E02F9/2004E02F9/2217E02F9/2239E02F9/2242E02F9/2282E02F9/2285F15B11/162F15B11/167F15B11/17F15B13/028F15B13/06F15B2211/20576F15B2211/3052F15B2211/30595F15B2211/31F15B2211/3116F15B2211/31594F15B2211/329F15B2211/36F15B2211/605F15B2211/6355F15B2211/7051F15B2211/71F15B2211/7142F15B2211/785F15B2211/851F15B2211/853
    • Disclosed is a hydraulic system for performing land preparation works by means of a simultaneous boom-up and arm-in operation. The hydraulic system according to the present invention includes: an arm cylinder and a boom cylinder that are connected to first and second hydraulic pumps, respectively; a first boom control valve that is disposed in the discharge flow path of the second hydraulic pump; a second boom control valve that is disposed in the discharge flow path of the first hydraulic pump and causes the working fluid of the first hydraulic pump to converge with the working fluid which is supplied from the second hydraulic pump to the boom cylinder; a first arm control valve that is disposed in the discharge flow path of the first hydraulic pump; a second arm control valve that is disposed in the discharge flow path of the second hydraulic pump and causes the working fluid of the second hydraulic pump to converge with the working fluid which is supplied from the first hydraulic pump to the arm cylinder; a recycle valve that is disposed in the flow path between the working fluid inlet port of the first arm control valve and a hydraulic tank; and a second boom control valve spool having a parallel pressure section in which the boom-up pilot pressure does not increase with respect to the boom-up strokes during the simultaneous boom-up and arm-in operation.
    • 公开了一种用于通过同时起重臂和手臂操作进行土地准备工作的液压系统。 根据本发明的液压系统包括:分别连接到第一和第二液压泵的臂缸和动臂缸; 第一起重臂控制阀,设置在第二液压泵的排出流路中; 第二起重臂控制阀,其设置在第一液压泵的排出流路中,并使第一液压泵的工作流体与从第二液压泵供给到动臂缸的工作流体汇合; 第一臂控制阀,其设置在第一液压泵的排出流路中; 第二臂控制阀,其设置在第二液压泵的排出流路中,并使第二液压泵的工作流体与从第一液压泵供给到斗缸的工作流体汇合; 设置在第一臂控制阀的工作流体入口与液压箱之间的流路中的再循环阀; 以及具有平行压力部分的第二起重臂控制阀阀芯,其中在同时起重臂和动臂操作期间动臂上升先导压力相对于起重臂上升行程不增加。
    • 7. 发明申请
    • HYDRAULIC CONTROL SYSTEM FOR SWING MOTOR
    • 电动液压控制系统
    • US20140174065A1
    • 2014-06-26
    • US13723443
    • 2012-12-21
    • CATERPILLAR INC.
    • Pengfei Ma
    • F15B13/02
    • F15B21/14E02F9/123E02F9/2217E02F9/2296F15B1/024F15B1/033F15B2211/20546F15B2211/212F15B2211/41527F15B2211/426F15B2211/6313F15B2211/7058F15B2211/761F15B2211/853
    • A hydraulic control system for a machine is disclosed. The hydraulic control system includes a swing control valve coupled between the swing motor, the pump and the tank to selectively control a fluid flow between the pump and the swing motor. The hydraulic control system includes a first conduit coupled between a first port of the swing control valve and a first chamber port of the swing motor. Further, a second conduit is coupled between a second port of the swing control valve and a second chamber port of the swing motor. A first chamber valve and a second chamber valve coupled to the first conduit and the second conduit. A controller is configured to selectively move one of the first and second chamber valves to reduce the fluid flow between the swing motor and the tank such that the pressurized flow discharged from the swing motor is directed to an accumulator fluidly coupled to each of the first and second conduits.
    • 公开了一种用于机器的液压控制系统。 液压控制系统包括一个回转控制阀,该回转控制阀连接在回转马达,泵和油箱之间,以选择性地控制泵和回转马达之间的流体流动。 液压控制系统包括耦合在回转控制阀的第一端口和回转马达的第一腔室端口之间的第一管道。 此外,第二导管联接在回转控制阀的第二端口和回转马达的第二室端口之间。 耦合到第一导管和第二导管的第一室阀和第二室阀。 控制器被配置为选择性地移动第一和第二室阀中的一个以减少回转马达和储罐之间的流体流动,使得从回转马达排出的加压流被引导到流体耦合到第一和第二室 第二条管道
    • 9. 发明申请
    • ENERGY-EFFICIENT HYDRAULIC DRIVE FOR THE LINEAR MOVEMENT OF A MASS
    • 用于线性运动的能量效率液压驱动器
    • US20120192553A1
    • 2012-08-02
    • US13342262
    • 2012-01-03
    • Gerd Scheffel
    • Gerd Scheffel
    • F15B1/027F15B13/06
    • F15B21/14F15B1/024F15B11/22F15B2211/212F15B2211/30575F15B2211/3058F15B2211/3059F15B2211/7053F15B2211/7054F15B2211/7107F15B2211/851F15B2211/853F15B2211/88
    • Hydraulically driven arrangement for the linear movement of a mass body consisting of two double acting cylinders coupled in parallel, whereby one operating cylinder is a control cylinder for controlling the movement of the mass body, which is split into an acceleration phase, a movement phase and a brake phase. The other operating cylinder is connected as a drive cylinder to the hydraulic power pack as an energy storage, in a manner that the power pack during the acceleration phase of the mass body generates the drive energy for the drive cylinder, and the drive cylinder in the brake phase of the mass body, which serves as a pump for charging the hydraulic power pack. The control cylinder and drive cylinder each have a piston with a one-sided piston rod coupled to the mass body. The control cylinder and the drive cylinder are controlled by hydraulically separated, independent control circuits.
    • 用于由两个并联的双作用气缸组成的质量体的线性运动的液压驱动装置,由此一个操作气缸是用于控制质量体的运动的控制气缸,其被分解成加速阶段,运动阶段和 制动阶段。 另一个操作气缸作为驱动气缸连接到作为能量存储器的液压动力组件,使得在质量体的加速阶段期间的动力组件产生驱动气缸的驱动能量,并且驱动气缸 质量体的制动阶段,其用作用于对液压动力单元进行充气的泵。 控制缸和驱动缸各自具有活塞,其具有联接到质量体的单侧活塞杆。 控制缸和驱动缸由液压分离的独立控制回路控制。