Swivel type working vehicle
    5.
    发明授权
    Swivel type working vehicle 失效
    旋转式工作车

    公开(公告)号:US06615942B2

    公开(公告)日:2003-09-09

    申请号:US09519404

    申请日:2000-03-03

    IPC分类号: B62D2510

    摘要: A swivel type working vehicle having a turntable (3) with a rear hood (28) covering an engine (11) and a side hood (42) covering hydraulic equipment. The rear hood (28) includes a pivot device (30) disposed in an upper front end region thereof and having a pivot axis extending transversely of a vehicle body. The rear hood is pivotable by the pivot device between a closed position covering the engine and an open position exposing the engine. The side hood (42) includes a pivot mechanism (50) disposed in a lower front end region thereof and having a pivot axis extending transversely of the vehicle body. The side hood being pivotable by the pivot mechanism between a closed position covering the hydraulic equipment and an open position exposing the hydraulic equipment.

    摘要翻译: 一种具有转盘(3)的旋转式作业车辆,其具有覆盖发动机(11)的后罩(28)和覆盖液压设备的侧罩(42)。 后罩(28)包括枢转装置(30),其设置在其上前端区域中,并具有横向于车身延伸的枢转轴线。 后罩通过枢转装置在覆盖发动机的关闭位置和暴露发动机的打开位置之间枢转。 侧罩(42)包括枢转机构(50),该枢转机构设置在其下前端区域中并且具有横向于车身延伸的枢转轴线。 侧罩能够通过枢转机构在覆盖液压设备的关闭位置和露出液压设备的打开位置之间枢转。

    Hydraulic pilot valve
    6.
    发明授权
    Hydraulic pilot valve 失效
    液压先导阀

    公开(公告)号:US5433249A

    公开(公告)日:1995-07-18

    申请号:US218606

    申请日:1994-03-29

    IPC分类号: F15B13/042 F15B13/02

    摘要: A crosswise controllable pilot valve for generating a pilot pressure corresponding to an amount of operation of a control lever. This valve has a spool reciprocable within a valve case between a pilot pressure supplying position for interconnecting a pump port and a supply and exhaust port, and an exhaust position for interconnecting a tank port and the supply and exhaust port, and a push rod movable in a first direction within the valve case to move the spool to the supplying position. The push rod includes a cylindrical skirt portion adjacent one end thereof having sliding surfaces for sliding relative to the valve case, and a rod portion adjacent the other end. The skirt portion, rod portion and valve case define a first space, while the skirt portion, spool and valve case define a second space. The first space and second space communicate with each other through oil passages for permitting escape of oil from the first space to the second space or from the second space to the first space during movement of the push rod.

    摘要翻译: 一种用于产生对应于控制杆的操作量的先导压力的可横向控制的先导阀。 该阀具有在阀壳内可往复运动的卷筒,用于将泵口与供排气口相互连接的先导供压位置和用于使罐口与供排气口相互连接的排气位置, 阀壳内的第一方向将阀芯移动到供应位置。 推杆包括邻近其一端的圆柱形裙部,其具有用于相对于阀壳滑动的滑动表面,以及与另一端相邻的杆部。 裙部,杆部分和阀壳限定第一空间,而裙部,线轴和阀壳限定第二空间。 第一空间和第二空间通过油通道彼此连通,以便在推杆移动期间允许油从第一空间逃逸到第二空间或从第二空间排出到第一空间。