Fluid controller, in particular as part of a hydraulic steering unit

    公开(公告)号:US11878748B2

    公开(公告)日:2024-01-23

    申请号:US17191129

    申请日:2021-03-03

    CPC分类号: B62D5/087 B62D5/065

    摘要: A fluid controller (1), in particular as part of a hydraulic steering unit, is described said controller (1) comprising a housing (2) having a supply port arrangement, a sleeve (4) arranged rotatably in a bore of the housing (2), a spool (3) arranged rotatably in the sleeve (4), and a measuring motor, wherein the measuring motor comprises a plurality of working chambers, each working chamber being connected to the bore, wherein the sleeve (4) comprises a commutation geometry (7) having a first partition and controlling together with a housing geometry (5) of the housing (2) a flow of hydraulic fluid into and out of the working chambers and the spool (3) comprises a spool geometry (14) controlling together with a valve geometry (10, 11) of the sleeve (4) a flow of hydraulic fluid between the supply port arrangement and the commutation geometry. Such a fluid controller should have a stable control behavior. To this end the valve geometry (10,11) comprises a second partition different from the first partition.

    PRESSURE RELIEF VALVE
    24.
    发明申请

    公开(公告)号:US20190170265A1

    公开(公告)日:2019-06-06

    申请号:US15831458

    申请日:2017-12-05

    IPC分类号: F16K17/06 B62D5/087

    摘要: A pressure relief valve for a fluid power assist steering system. The valve includes a housing and a spool disposed in the housing. The spool defines a cavity and has a first end and a second end. The spool is movable in the housing to limit an output pressure of the pump. A poppet seat is secured to the second end of the spool. A poppet is disposed in the cavity. A poppet spring biases the poppet into engagement with the poppet seat. A set screw is received in the first end of the spool. The set screw is rotatable relative to the spool to adjust a compression level of the poppet spring.

    PISTON VALVE
    26.
    发明申请
    PISTON VALVE 有权
    活塞阀

    公开(公告)号:US20160116073A1

    公开(公告)日:2016-04-28

    申请号:US14892393

    申请日:2014-05-19

    IPC分类号: F16K3/26 F16K31/524

    摘要: A valve for controlling a fluid flow comprising; an inner sleeve having a control surface and a middle sleeve, wherein a first movement of the inner sleeve with respect to the middle sleeve can be carried out, wherein the valve comprises a control piston, wherein the first movement prompts a second movement of the control piston, whereby the valve is moved into a switched state.

    摘要翻译: 一种用于控制流体流动的阀,包括: 具有控制表面和中间套筒的内套筒,其中可以执行内套筒相对于中间套筒的第一运动,其中阀门包括控制活塞,其中第一运动提示控制器的第二运动 活塞,从而阀被移动到开关状态。

    Slide Vane for Hydraulic Power Steering
    27.
    发明申请
    Slide Vane for Hydraulic Power Steering 有权
    液压动力转向用叶片

    公开(公告)号:US20080309083A1

    公开(公告)日:2008-12-18

    申请号:US12140723

    申请日:2008-06-17

    IPC分类号: F16L21/00

    摘要: The invention relates to a slide vane (20) for a hydraulic power steering of automotive vehicles with a tubular control sleeve (24). Said control sleeve is connected to an output shaft (28) and comprises first control grooves (32) in its inner surface (34). Further, there is provided a tubular sliding sleeve (26) that is disposed at least in portions within said control sleeve (24). On its outer surface (38), the sliding sleeve (26) comprises second control grooves (36) that may be brought to coincide with the first control grooves (32) of the control sleeve (24), said first control grooves (32) being disposed substantially in the circumferential direction of the tubular control sleeve (24) and said second control grooves (36) substantially in the circumferential direction of said tubular sliding sleeve (26). The relative position of said control sleeve (24) and of said sliding sleeve (26) being relatively variable in the axial direction

    摘要翻译: 本发明涉及一种用于具有管状控制套筒(24)的机动车辆的液压动力转向的滑动叶片(20)。 所述控制套筒连接到输出轴(28)并且包括在其内表面(34)中的第一控制槽(32)。 此外,提供了至少部分地设置在所述控制套筒(24)内的管状滑动套筒(26)。 在其外表面(38)上,滑动套筒(26)包括可与控制套筒(24)的第一控制槽(32)重合的第二控制槽(36),所述第一控制槽(32) 大致沿着所述管状滑动套筒(26)的圆周方向设置在所述管状控制套筒(24)和所述第二控制槽(36)的圆周方向上。 所述控制套筒(24)和所述滑动套筒(26)的相对位置在轴向上是相对可变的

    Power steering system
    28.
    发明授权

    公开(公告)号:US06668968B2

    公开(公告)日:2003-12-30

    申请号:US09963370

    申请日:2001-09-27

    IPC分类号: B62D506

    CPC分类号: B62D5/087 B62D5/12

    摘要: A power steering system is provided which makes it possible to simplify assembly onto a vehicle body and to enhance assembly accuracy. A steering shaft is divided into two portions in the axial direction. The lower of the two portions is an input shaft. A connecting cylinder to which the input shaft is serration-fitted is integrally provided at a lower portion of the steering shaft. A side wall of the connecting cylinder is provided with a groove in the axial direction. A fastening device is provided for reducing the diameter of the connecting cylinder so as to reduce the width of the groove. A spool lever is integrally fitted to the input shaft.

    Power steering system
    29.
    发明申请
    Power steering system 失效
    动力转向系统

    公开(公告)号:US20020040824A1

    公开(公告)日:2002-04-11

    申请号:US09963370

    申请日:2001-09-27

    IPC分类号: B62D005/06

    CPC分类号: B62D5/087 B62D5/12

    摘要: A power steering system is provided which makes it possible to simplify assembly onto a vehicle body and to enhance assembly accuracy. A steering shaft is divided into two portions in the axial direction. The lower of the two portions is an input shaft. A connecting cylinder to which the input shaft is serration-fitted is integrally provided at a lower portion of the steering shaft. A side wall of the connecting cylinder is provided with a groove in the axial direction. A fastening device is provided for reducing the diameter of the connecting cylinder so as to reduce the width of the groove. A spool lever is integrally fitted to the input shaft.

    摘要翻译: 提供了一种动力转向系统,其可以简化组装到车体上并提高组装精度。 转向轴沿轴向分为两部分。 两部分的下部是输入轴。 在转向轴的下部一体地设置有连接圆筒,输入轴与其配合的连接圆筒。 连接筒的侧壁在轴向设置有槽。 提供一种紧固装置,用于减小连接圆筒的直径,以减小凹槽的宽度。 卷筒杆与输入轴一体装配。

    Spool valve with self-centering mechanism
    30.
    发明授权
    Spool valve with self-centering mechanism 失效
    带自动定心机构的阀芯阀

    公开(公告)号:US5327936A

    公开(公告)日:1994-07-12

    申请号:US998837

    申请日:1992-12-30

    申请人: Hisao Takayanagi

    发明人: Hisao Takayanagi

    摘要: A spool valve includes a spool assembly axially movably disposed in a cylindrical valve case. The spool assembly comprises a guide sleeve threaded in an end portion of the valve case and having an inner end positioned in the valve case and an outer end positioned outside of the valve case, and a spool axially slidably extending through an opposite end portion of the valve case and the guide sleeve. The spool is centered with respect to the valve case by a self-centering mechanism which is retained in the guide sleeve and the spool by a stopper nut threaded in the inner end of the guide sleeve. A lock nut is threaded over the outer end of the guide sleeve for fastening the guide sleeve to the valve case.

    摘要翻译: 滑阀包括轴向移动地设置在圆柱形阀壳体中的阀芯组件。 卷轴组件包括螺纹连接在阀壳的端部中并具有定位在阀壳体中的内端和位于阀壳体外部的外端的引导套筒,以及轴向可滑动地延伸穿过阀壳体的相对端部的阀芯 阀壳和导套。 阀芯通过自动对中机构相对于阀壳体居中,该定心机构通过螺纹连接在导向套筒的内端中的止动螺母而保持在导向套筒和阀芯中。 锁紧螺母穿过导向套筒的外端,用于将导向套筒紧固到阀门壳体上。