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81 条记录 (耗时 0.018 秒)

    Hydraulic tensioning apparatus
    41.
    发明授权
    Hydraulic tensioning apparatus 有权

    公开(公告)号：US12053867B2

    公开(公告)日：2024-08-06

    申请号：US17312917

    申请日：2019-12-11

    申请人： Tentec Limited

    发明人： Adam Thomas Lee ,  Anthony Scrivens

    IPC分类号： B25B29/02 ,  B23P19/06 ,  F15B21/02

    CPC分类号： B25B29/02 ,  B23P19/067 ,  F15B21/02 ,  F15B2211/565

    摘要： A hydraulic tensioning apparatus for tensioning a threaded member (2) having a thread, comprising: a hydraulic tensioner (1), having a body (4) and a pressure space (13) for hydraulic fluid and having a thread engaging member (7) arranged to engage the thread of the threaded member (2) and to be urged away from the body (4) on introduction of hydraulic fluid into the pressure space (13) so as to tension the threaded member (2); a displacement sensor (11, 12) arranged to measure a linear displacement of the thread engaging member (7) relative to the base (4) and to provide an output indicative of the linear displacement; a rotation sensor (65, 66) arranged to determine a rotation of a nut (3) rotating on the threaded member (2) and arranged to produce output indicative of a rotation angle of the nut (3); and a control unit (80) arranged to take as inputs the outputs of the displacement sensor (11, 12) and the rotation sensor (65, 66), and to determine from the output of the displacement sensor (11, 12) a required angle of rotation of the nut (3) which accommodates for extension of the threaded member (2) due to being tensioned by the hydraulic tensioner (1).

    Hydraulic valve arrangement
    45.
    发明授权
    Hydraulic valve arrangement 有权
    液压阀装置

    公开(公告)号：US07975598B2

    公开(公告)日：2011-07-12

    申请号：US11956917

    申请日：2007-12-14

    申请人： Thorkild Christensen ,  Siegfried Zenker ,  Svend Erik Thomsen

    发明人： Thorkild Christensen ,  Siegfried Zenker ,  Svend Erik Thomsen

    IPC分类号： F15B13/042

    CPC分类号： F15B11/05 ,  E02F9/2225 ,  E02F9/2267 ,  F15B2211/20538 ,  F15B2211/30555 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/55 ,  F15B2211/565 ,  F15B2211/6051 ,  F15B2211/7053 ,  F15B2211/7054

    摘要： The invention concerns a hydraulic valve arrangement (1) with a supply connection arrangement comprising a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement comprising two working connections (A, B), which can be connected to a motor (4), a directional valve arrangement (5) located between the supply connection arrangement (P, T) and the working connection arrangement (A, B), and a compensation valve (15) acted upon in a first activation direction by a pressure in a first pressure chamber (33), which is connected to a load-sensing pipe (LS), and, if required, by a spring (32), and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement (5), said pressure acting in a second pressure chamber (34), the compensation valve (15) having an inlet (14) and an outlet (19). In connection with a post-compensated valve, it is endeavored to adjust the load pressures at the working connections (A, B) in dependence of the direction. For this purpose, each working connection (A, B) is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber (33) on the compensation valve (15) in dependence of a pressure ruling at the working connection (A, B).

    摘要翻译： 本发明涉及具有包括高压连接（P）和低压连接（T）的供应连接装置的液压阀装置（1），包括两个工作连接（A，B）的工作连接装置，其可以 连接到电动机（4），位于供应连接装置（P，T）和工作连接装置（A，B）之间的方向阀装置（5）和补偿阀（15） 通过连接到负载传感管（LS）的第一压力室（33）中的压力，以及如果需要，通过弹簧（32）和在与第一激活相反的第二激活方向上的压力的激活方向 方向阀装置（5）下游的压力，所述压力作用在第二压力室（34）中，补偿阀（15）具有入口（14）和出口（19）。 结合补偿后阀门，努力根据方向调整工作连接（A，B）的负载压力。 为此，每个工作连接（A，B）连接到控制系统，该控制系统根据工作中的压力判定放大第一压力室（33）中的压力对补偿阀（15）的影响 连接（A，B）。

    Hydraulic pressure control device for automatic transmission
    46.
    发明授权
    Hydraulic pressure control device for automatic transmission 有权
    液压控制装置自动变速箱

    公开(公告)号：US07673652B2

    公开(公告)日：2010-03-09

    申请号：US11340701

    申请日：2006-01-27

    申请人： Kiyoharu Takagi

    发明人： Kiyoharu Takagi

    IPC分类号： G05D7/06 ,  F16H61/28

    CPC分类号： F16D48/02 ,  F15B2211/50554 ,  F15B2211/565 ,  F16D2048/0221 ,  F16D2048/0224 ,  F16D2048/0281 ,  F16D2500/1045 ,  F16D2500/1085 ,  F16D2500/5114 ,  F16H61/0206 ,  F16H61/12 ,  F16H2061/1244 ,  F16H2061/1264 ,  Y10T137/2544 ,  Y10T137/86614 ,  Y10T137/87209

    摘要： There is provided a circuit configuration which does not require an additional fail-safe mechanism caused by the addition of a changeover valve in a hydraulic pressure control device for an automatic transmission having a function to directly supply a line pressure and hold (lock) an engaging pressure by combinations of electromagnetic valves and changeover valves.A changeover valve 20 is disposed between an output port 12 and a feedback port 13 of a linear solenoid valve 10 of the hydraulic pressure control device for an automatic transmission. The changeover valve 20 operates depending on at least an output pressure from the output port, and is switched between (1) a first state (control mode) in which a pressure Pc corresponding to an indicator current is outputted through the linear solenoid valve 10 by bringing the output port into communication with the feedback port, and (2) a second state (lock mode) in which a line pressure PL is outputted through the linear solenoid valve 10 by bringing the feedback port 13 into communication with a drain passage EX and discharging oil from the feedback port.

    摘要翻译： 提供了一种电路结构，其不需要在用于自动变速器的液压控制装置中添加转换阀而引起的另外的故障安全机构，其具有直接供应管路压力并保持（锁定）接合 压力通过电磁阀和转换阀的组合。 转换阀20设置在用于自动变速器的液压控制装置的线性电磁阀10的输出端口12和反馈端口13之间。 切换阀20至少根据来自输出口的输出压力进行动作，并且在（1）通过线性电磁阀10输出与指示电流对应的压力Pc的第一状态（控制模式）之间切换， 使输出端口与反馈端口连通，以及（2）通过使反馈端口13与排水通道EX连通而通过线性电磁阀10输出管路压力PL的第二状态（锁定模式），以及 从反馈口排出油。

    HYDRAULIC VALVE ARRANGEMENT
    48.
    发明申请
    HYDRAULIC VALVE ARRANGEMENT 有权
    液压阀安装

    公开(公告)号：US20080245222A1

    公开(公告)日：2008-10-09

    申请号：US11956917

    申请日：2007-12-14

    申请人： Thorkild Christensen ,  Siegfried Zenker ,  Svend Erik Thomsen

    发明人： Thorkild Christensen ,  Siegfried Zenker ,  Svend Erik Thomsen

    IPC分类号： F15B13/042 ,  F15B11/00 ,  F15B11/05

    CPC分类号： F15B11/05 ,  E02F9/2225 ,  E02F9/2267 ,  F15B2211/20538 ,  F15B2211/30555 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/55 ,  F15B2211/565 ,  F15B2211/6051 ,  F15B2211/7053 ,  F15B2211/7054

    摘要： The invention concerns a hydraulic valve arrangement (1) with a supply connection arrangement comprising a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement comprising two working connections (A, B), which can be connected to a motor (4), a directional valve arrangement (5) located between the supply connection arrangement (P, T) and the working connection arrangement (A, B), and a compensation valve (15) acted upon in a first activation direction by a pressure in a first pressure chamber (33), which is connected to a load-sensing pipe (LS), and, if required, by a spring (32), and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement (5), said pressure acting in a second pressure chamber (34), the compensation valve (15) having an inlet (14) and an outlet (19). In connection with a post-compensated valve, it is endeavoured to adjust the load pressures at the working connections (A, B) in dependence of the direction. For this purpose, each working connection (A, B) is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber (33) on the compensation valve (15) in dependence of a pressure ruling at the working connection (A, B).

    摘要翻译： 本发明涉及具有包括高压连接（P）和低压连接（T）的供应连接装置的液压阀装置（1），包括两个工作连接（A，B）的工作连接装置，其可以 连接到电动机（4），位于供应连接装置（P，T）和工作连接装置（A，B）之间的方向阀装置（5）和补偿阀（15） 通过连接到负载传感管（LS）的第一压力室（33）中的压力，以及如果需要，通过弹簧（32）和在与第一激活相反的第二激活方向上的压力的激活方向 方向阀装置（5）下游的压力，所述压力作用在第二压力室（34）中，补偿阀（15）具有入口（14）和出口（19）。 结合补偿后阀门，努力根据方向调整工作连接（A，B）的负载压力。 为此，每个工作连接（A，B）连接到控制系统，该控制系统根据工作中的压力判定放大第一压力室（33）中的压力对补偿阀（15）的影响 连接（A，B）。

    Device for path-dependent control of force generated by a piston
    49.
    发明授权
    Device for path-dependent control of force generated by a piston 失效
    用于由活塞产生的力的路径相关控制的装置

    公开(公告)号：US06397726B1

    公开(公告)日：2002-06-04

    申请号：US09673656

    申请日：2000-11-06

    申请人： Rolf-Günter Litzel

    发明人： Rolf-Günter Litzel

    IPC分类号： F15B1100

    CPC分类号： F15B11/048 ,  F15B2211/30505 ,  F15B2211/3056 ,  F15B2211/3111 ,  F15B2211/3138 ,  F15B2211/31541 ,  F15B2211/40584 ,  F15B2211/41527 ,  F15B2211/455 ,  F15B2211/473 ,  F15B2211/50554 ,  F15B2211/50563 ,  F15B2211/515 ,  F15B2211/5158 ,  F15B2211/565 ,  F15B2211/7107 ,  F15B2211/76

    摘要： The invention provides a method and apparatus for controlling in a path-dependent manner the force generated by a piston. A first piston travels in a first cylinder—divided into a first and second chamber by the first piston—together with a pressure fluid. A second cylinder is provided in which a second piston travels. Like the first cylinder, the second cylinder is also divided by the second piston into a first and a second chamber, in this case by the second piston. The first and second pistons are coupled mechanically. The pressure in the second chamber of the second cylinder is regulated such that it is always equal to the counterpressure in the first chamber of the second cylinder and the second chamber of the first cylinder.

    摘要翻译： 本发明提供一种用于以路径相关的方式控制由活塞产生的力的方法和装置。 第一活塞通过第一活塞与压力流体一起在第一气缸中行进，分成第一和第二室。 提供第二个气缸，其中第二个活塞行进。 类似于第一气缸，第二气缸也被第二活塞分成第一和第二室，在这种情况下由第二活塞。 第一和第二活塞机械连接。 第二气缸的第二室中的压力被调节为使得其总是等于第二气缸的第一室和第一气缸的第二室中的反压力。