专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US3552438A Axial fixation means for rotary valve 失效
标题翻译：旋转阀的轴向固定装置
公开(公告)号：US3552438A
公开(公告)日：1971-01-05
申请号：US3552438D
申请日：1969-06-12
申请人： WOODLING GEORGE V
发明人： WOODLING GEORGE V
IPC分类号： B62D5/097 , F16K11/02
CPC分类号： B62D5/097 , Y10T137/86638
摘要： Stationary valve and rotary valve for an orbital device having operating fluid chambers, in which the stationary valve has a stationary valve face and a plurality of fluid openings communicating with the fluid chambers. The rotary valve is mounted between the stationary valve face and an annular bushing which is axially supported by an internal housing rim. The rotary valve terminates in flange means comprising an external-rim flange and an internal-rim flange interconnected by a common intermediate annular body portion which has an end face defining substantially a circular sealing band disposed between first and second series of commutating fluid connection means commutatingly registering with the fluid openings in the stationary valve face, axial fixation means is operatively movable with said rotary valve in an axial direction to axially fix the sealing engagement between the rotary valve and the stationary valve.

62. 发明授权

US3360932A Rotary emittance valve 失效
标题翻译：旋转发射阀
公开(公告)号：US3360932A
公开(公告)日：1968-01-02
申请号：US54796966
申请日：1966-05-05
申请人： INT HARVESTER CO
发明人： LECH RICHARD J , ZISKAL JOSEPH F
IPC分类号： B62D5/097
CPC分类号： B62D5/097

63. 发明授权

US12024243B2 Power steering valve 有权
公开(公告)号：US12024243B2
公开(公告)日：2024-07-02
申请号：US17253706
申请日：2019-09-30
申请人： NISHINA INDUSTRIAL CO., LTD.
发明人： Yukinori Takeda , Shigeto Nakajima
IPC分类号： B62D5/097 , B62D5/06 , B62D5/083
CPC分类号： B62D5/097 , B62D5/062 , B62D5/083
摘要： This power steering valve (1) includes a sleeve (40), a spool (60) held in such a way as to be able to rotate within the housing (40), to which an input shaft U of a steering wheel S is coupled, a gerotor (30) fixed to the sleeve (10) and configured to be driven by hydraulic fluid which flows out from the predetermined opening of the sleeve (40), and a drive shaft (80) meshing with an inner rotor (32) of the gerotor (30) and pivotally supported in a swingable manner by the sleeve (40) with use of a pin (81), wherein an overall length Ld of the drive shaft (80) is formed to have a dimension defined by (¼)·Ls≤Ld≤(½)·Ls relative to an overall length Ls of the sleeve (40), and the pin (81) is arranged at a position nearer the gerotor (30) in an axial direction than a middle position in the sleeve (40).

64. 发明授权

US10766524B2 Hydraulic steering unit 有权
公开(公告)号：US10766524B2
公开(公告)日：2020-09-08
申请号：US15970311
申请日：2018-05-03
申请人： Danfoss Power Solutions ApS
发明人： Niels Arbjerg , Charles Anthony Bates , Poul Ennemark , Mogens Frederiksen , Casper Mikael Olesen
IPC分类号： B62D5/083 , B62D5/097 , B62D5/093 , B62D5/065 , B62D5/08 , B62D5/14
摘要： A hydraulic steering unit (1) is described comprising a supply port arrangement having a pressure port (P) connected to a main flow path (5) and a tank port (T) connected to a tank flow path (6), a working port arrangement having a left working port (L) connected to a left working flow path (7) and a right working port (R) connected to a right working flow path (8), a bridge arrangement (14) of variable neutral open orifices, said bridge arrangement (14) comprising a first left orifice (A2L) connected to a main flow path (5) and to the left working flow path (7), a first right orifice (A2R) connected to a main flow path (5) and to the right working flow path (8), a second left orifice (A3L) connected to the left working flow path (7) and to the tank flow path (6), and a second right orifice (A3R) connected to the right working flow path (8) and to the tank flow path (6). Such a steering unit has a good steering behavior but can function as a closed-center solution. To this end a further variable orifice arrangement is arranged between the supply port (P) arrangement and the working port arrangement (T), which further orifice arrangement is closed in neutral position.

65. 发明授权

US09920776B2 Fluid controller with load sense and flow amplification 有权
公开(公告)号：US09920776B2
公开(公告)日：2018-03-20
申请号：US14306657
申请日：2014-06-17
申请人： Eaton Corporation
发明人： Aaron Kelly Krahn
IPC分类号： B62D5/09 , F15B13/04 , B62D5/097
CPC分类号： F15B13/0402 , B62D5/097 , Y10T137/8659
摘要： A fluid controller includes a valve housing having an inlet port, a return port, first and second control ports and a load sense port. The fluid controller further includes a fluid meter in selective fluid communication with the valve housing and a valve assembly adapted to provide selective fluid communication between the valve housing and the fluid meter. The valve housing includes a main flow path and a load sense flow path. The main flow path is adapted to provide selective fluid communication between the inlet port and the first control port. Fluid in the main flow path passes through the fluid meter. The load sense path is adapted to provide selective fluid communication between the load sense port and the main flow path. The load sense flow path includes a variable load sense orifice that substantially closes prior to a maximum rotational displacement of the valve assembly.

66. 发明授权

US09393992B2 Steering system for heavy vehicles 有权
标题翻译：重型车辆转向系统
公开(公告)号：US09393992B2
公开(公告)日：2016-07-19
申请号：US14593498
申请日：2015-01-09
申请人： OGNIBENE POWER S.P.A.
发明人： Claudio Ognibene
IPC分类号： B62D5/065 , B62D5/32 , B62D5/00 , B62D5/097 , B62D15/02
CPC分类号： B62D5/32 , B62D5/003 , B62D5/005 , B62D5/097 , B62D15/0245
摘要： A steering system (10) includes a steering wheel (310), a steering column (30), provided with a first portion (31) associated to the steering wheel (310) and on which a first angular position sensor (316) is positioned, and a second portion (32), on which a second electric motor (325) and a second angular position sensor (326) are positioned, and a clutch (33) interposed between the first portion (31) and the second portion (32). The second portion (32) is associated to a hydrostatic steering unit (40) able to command a steering of a vehicle following a rotation imparted on the steering wheel (310) selectively by means of activating the second electric motor (325) when the clutch (33) is open or directly by means of the clutch (33) when the clutch is closed.
摘要翻译：转向系统（10）包括方向盘（310），转向柱（30），其设置有与方向盘（310）相关联的第一部分（31），并且第一角位置传感器，以及设置有第二电动机（325）和第二角度位置传感器（326）的第二部分（32），以及插入在所述第一部分（31）和所述第二部分（32）之间的离合器（33））。第二部分（32）与静液压转向单元（40）相关联，该静液压转向单元（40）能够通过在离合器（310）上启动第二电动机（325）时，通过启动第二电动机（33）当离合器关闭时通过离合器（33）直接打开或直接。

67. 发明授权

US5992458A Load reaction steering unit for unequal area cylinder 有权
标题翻译：负载反转转向装置用于不等面积气缸
公开(公告)号：US5992458A
公开(公告)日：1999-11-30
申请号：US229713
申请日：1999-01-13
申请人： William J. Novacek , James K. Yip
发明人： William J. Novacek , James K. Yip
IPC分类号： B62D5/09 , B62D5/097 , F15B13/04
CPC分类号： B62D5/097 , Y10T137/86662
摘要： A fluid controller (15) of the type which controls the flow of fluid to an unequal area steering cylinder (25), wherein the controller is of the load reaction type. The controller (15) includes valving (27) which, when it is in neutral (FIGS. 1 and 5), defines a load reaction fluid path (LR) permitting fluid communication between the control fluid ports (21, and 23) through the fluid meter (29) in response to an external load imposed on the cylinder (25). In accordance with the invention, the valving (27) includes a fluid path (97,95,99,71,75) between the load reaction fluid path (LR) and the return port (19), when the valving is in neutral. When the rod end chamber (A) is contracting, fluid is drawn from the return port into the load reaction fluid path (LR), preventing cavitation, and when the head end chamber (B) is contracting, fluid flows from the load reaction fluid path (LR) to the return port (19), preventing pressure intensification.
摘要翻译：一种流体控制器（15），其控制流体流向不相等的转向缸（25），其中控制器是负载反作用类型。控制器（15）包括阀门（27），当阀门处于空档状态（图1和图5）时，阀门限定了允许控制流体端口（21和23）之间流体连通的载荷反作用流体路径（LR）流体计（29）响应施加在气缸（25）上的外部负载。根据本发明，当阀门处于空档时，阀门（27）包括在负载反作用流体路径（LR）和返回端口（19）之间的流体路径（97,95,99,71,75）。当杆端腔（A）收缩时，流体从返回口抽出到负载反应流体路径（LR）中，防止气蚀，并且当头端室（B）收缩时，流体从负载反应流体路径（LR）到返回端口（19），防止压力增强。

68. 发明授权

US5806561A Hydraulic control arrangement 失效
标题翻译：液压控制装置
公开(公告)号：US5806561A
公开(公告)日：1998-09-15
申请号：US913944
申请日：1997-09-18
申请人： Poul Henning Holm Pedersen , Ole Vincentz S.o slashed.rensen
发明人： Poul Henning Holm Pedersen , Ole Vincentz S.o slashed.rensen
IPC分类号： B62D5/097 , B62D5/32 , F15B13/10
CPC分类号： B62D5/097 , B62D5/32 , Y10T137/86163
摘要： A hydraulic control arrangement is disclosed having a directional valve, a metering pump unit which has two metering pumps which are connected hydraulically in parallel and are operable mechanically in parallel, and a shut-off valve in a hydraulic connection between the two metering pumps, a pump connection and a tank connection which are connected to the metering pump unit by way of the directional valve, and also two working connections which are connected to the directional valve, a control inlet of the shut-off valve being connected to the pump connection. Such a control unit should be constructed to be user-friendly, especially for emergency operation. For that purpose, a safety valve arrangement is arranged between the control inlet of the shut-off valve and the directional valve.
摘要翻译： PCT No.PCT / DK96 / 00118 Sec。 371日期：1997年9月18日 102（e）日期1997年9月18日PCT 1996年3月25日PCT公布。出版物WO96 / 30248 日本1996年10月3日公开了一种液压控制装置，其具有方向阀，计量泵单元，其具有两个并联连接并且机械并联连接的计量泵，以及在液压连接中的截止阀两个计量泵，一个泵连接和一个水箱连接，其通过方向阀连接到计量泵单元，以及两个连接到方向阀的工作连接，截止阀的控制入口连接到泵连接。这样的控制单元应该被构造为用户友好的，特别是用于紧急操作。为此，在截止阀的控制入口和方向阀之间设置安全阀装置。

69. 再颁专利

USRE34746E Open-center steering control unit with flow amplification 失效
标题翻译：具有流量放大的开放式中心转向控制单元
公开(公告)号：USRE34746E
公开(公告)日：1994-10-04
申请号：US822245
申请日：1992-01-17
申请人： Herman P. Schutten , Dwight B. Stephenson , Donald M. Haarstad
发明人： Herman P. Schutten , Dwight B. Stephenson , Donald M. Haarstad
IPC分类号： B62D5/097 , B62D5/32 , F16D31/02
CPC分类号： B62D5/32 , B62D5/097 , Y10T137/86662 , Y10T137/87185
摘要： An open-center fluid controller (15) is disclosed for controlling the flow of fluid to a steering cylinder (25). The controller includes a fluid meter (29) and valving arrangement (27), including a valve spool (43) and a sleeve (45), which define a main fluid path. The main path includes a fixed flow control orifice (86), a variable flow control orifice (87), the fluid meter (29), and a variable flow control orifice (89). In accordance with the invention, the spool and sleeve define an amplification fluid path (101), including a variable amplification orifice (99), in parallel with the main fluid path, and disposed to amplify the flow of fluid through the meter (29). In order to facilitate manual steering, the amplification orifice (99) reaches its maximum flow area when the spool and sleeve are in a normal operating position (FIG. 6). The amplification orifice then decreases and closes as the displacement between the spool and sleeve reach a maximum displacement (FIG. 7). As a result, the amplification fluid path (101) is closed at maximum valve displacement, thus making it possible to manually steer the vehicle.
摘要翻译：公开了一种用于控制流向转向缸（25）的流体的开放中心流体控制器（15）。控制器包括流体计（29）和阀装置（27），其包括限定主流体路径的阀芯（43）和套筒（45）。主路径包括固定流量控制孔（86），可变流量控制孔（87），流量计（29）和可变流量控制孔（89）。根据本发明，阀芯和套管限定了与主流体路径平行的包括可变放大孔（99）的放大流体路径（101），并设置成放大通过流量计（29）的流体流动，。为了便于手动转向，当阀芯和套管处于正常操作位置时，扩张孔（99）达到其最大流动面积（图6）。然后当卷轴和套筒之间的位移达到最大位移时，放大孔随之减小和关闭（图7）。结果，扩大流体路径（101）在最大的阀门位移处被关闭，从而使得可以手动转向车辆。

70. 发明授权

US5072585A Hydrostatic auxiliary-power steering device 失效
标题翻译：液压辅助动力转向装置
公开(公告)号：US5072585A
公开(公告)日：1991-12-17
申请号：US499267
申请日：1990-05-31
申请人： Rolf Fassbender , Bernd Ilg
发明人： Rolf Fassbender , Bernd Ilg
IPC分类号： B62D5/097
CPC分类号： B62D5/097
摘要： Hydrostatic auxiliary power steering devices transmit the steering power to the steered wheels via oil pressure. Such devices utilize a metering pump 5 and a steering valve 2 combined into a single unit. The metering pump distributes oil flow produced by a power steering pump 1 to a pressure operated steering power cylinder 8 under control of a steering valve 2 responsive to drive rotation of the vehicle steering wheel. The oil flow synchronizes the angle of rotation of the steering wheel with the angle of the lock of the wheels being steered. In hydrostatic systems there is a tendency to pressure oscillations. In the present invention these oscillations are minimized without occurring excessive pressure loss. The arrangement provides an inlet conduit 4 for steering, a damping valve 11 having a damping piston 12 centered by springs 13, 14 and closing off a branch conduit 6 which stops flow to the metering pump 5. When pressure is involved by rotation of the steering wheels the damping piston 12 releases a flow cross section from the inlet conduit 4 to the branch conduit 6 leading to the metering pump 5. Accordingly, rapid changes in pressure in the inlet conduit 4 when oil is fed to the metering pump 5 are delayed.
摘要翻译： PCT No.PCT / EP89 / 00040 Sec。 371日期1990年5月31日第 102（e）日期1990年5月31日PCT提交1988年1月14日PCT公布。出版物WO89 / 06618 日期1989年7月27日。静液辅助动力转向装置通过油压将转向功率传递给转向轮。这样的装置利用计量泵5和转向阀2组合成单个单元。计量泵响应于车辆方向盘的驱动旋转，在转向阀2的控制下将由动力转向泵1产生的油流分配到压力操纵转向动力缸8。油流使方向盘的旋转角度与被转向的车轮的锁定角同步。在静水压系统中，存在压力振荡的趋势。在本发明中，这些振荡被最小化而没有发生过大的压力损失。该装置提供了用于转向的入口管道4，阻尼阀11具有以弹簧13,14为中心的阻尼活塞12，并且关闭停止流向计量泵5的分支导管6。当转向阻尼活塞12的轮子将从入口管道4流向通向计量泵5的分支导管6的流动横截面释放。因此，当油被输送到计量泵5时，入口导管4中的压力的快速变化被延迟。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式