专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1997021578A1 STEERING VALVE WITH CLOSED CENTRE 审中-公开
标题翻译：转向控制阀闭心
公开(公告)号：WO1997021578A1
公开(公告)日：1997-06-19
申请号：PCT/EP1995004852
申请日：1995-12-09
申请人： TRW FAHRWERKSYSTEME GMBH & CO. KG , SPILLNER, Robert , PRITCHARD, Geoffrey
发明人： TRW FAHRWERKSYSTEME GMBH & CO. KG
IPC分类号： B62D05/083
CPC分类号： B62D5/083
摘要： The invention concerns a steering valve with a closed centre for supplying an actuator with hydraulic pressure, the steering valve comprising an input shaft (3), an output shaft (4), a torsionally resilient element which is connected at one end to the input shaft and at the other end to the output shaft, a control pressure switching arrangement and a torque/axial force conversion unit. According to the invention, in order to improve the response dynamics of such a steering valve, said valve (1) comprises at least one axial bore (20) for supplying hydraulic pressure. At one end this bore is closed by a valve which is loaded by the torque/axial force conversion unit (10) against the hydraulic pressure.
摘要翻译：为了提高转向阀的一个封闭的中心用于供给与液压致动器，包括：输入轴（3），输出轴的动态响应（4），在一端连接到所述输入轴连接的扭转弹性元件上，另一端与输出轴，一个控制压力开关装置和扭矩/轴向力转换器单元中，提出的是，转向阀（1）具有用于液压导向的至少一个轴向孔（20），其在一端连接到一个由转矩/轴向力转换器单元（10）针对所述液压加载的阀是关闭的。

2. 发明申请

WO1994015825A1 CENTRING DEVICE, ESPECIALLY FOR STEERING VALVES 审中-公开
标题翻译：中心装置，特别适用于转向阀
公开(公告)号：WO1994015825A1
公开(公告)日：1994-07-21
申请号：PCT/EP1994000058
申请日：1994-01-11
申请人： ZF FRIEDRICHSHAFEN AKTIENGESELLSCHAFT , BREITWEG, Werner , HOFMANN, Hans
发明人： ZF FRIEDRICHSHAFEN AKTIENGESELLSCHAFT
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , Y10T137/86638
摘要： A centring device for steering valves comprises a torsion bar (1) firmly secured at one end-piece (1A) to a drive shaft (3) and at another endpiece (1B) to a drive shaft (4). As the torsion bar (1) cannot provide exact centring between a rotary valve (3A) and a valve bush (6), a fine-centring system is provided. The fine-centring system consists of a tubular end-piece (7) secured to the drive shaft and bearing a metal bellows (8) and a centring member (10) connected thereto. The centring member (10) is axially prestressed by the metal bellows (8) and presses against another centring member (14) via rollers (12). The centring member (14) is, according to the invention, part of an inner race (15) of a needle-roller bearing (16) which is pressed on the end piece (1B) of the torsion bar (2) connected to the drive shaft (3). The centring members (10, 14) have oblique surface grooves (11, 13) which generate a centring force via the rollers when the two shafts (3, 4) are mutually rotated.
摘要翻译：用于转向阀的定心装置包括：（1）通过端件（1A）到输入轴（3）连接的扭杆和另一端部（1B）以输入轴（ 4）。由于扭杆（1）不能在旋转阀（3A）和阀套（6）之间获得精确的中心定位，所以本发明提供了一种精确对中装置。细定心装置包括一个管状端件（7），其被固定到所述输入轴和其承载的金属波纹管（8）和连接到中心部分（10），所述波纹管。对中件（10）通过金属波纹管（8）轴向预应力并且通过滚动元件（12）压到另一个对中件（14）上。根据本发明，所述定心件（14）是2，其被压在扭力杆的端件（1B）滚针轴承（16）的内轴承环（15）的一部分（），其连接到输入轴（3）。定心部件（10，14）设置有具有倾斜面的槽（11，13），其经由滚动体诱导的定心力时两个轴相对于旋转其他。

3. 发明申请

WO1993023277A1 ASSISTED STEERING MECHANISM, IN PARTICULAR FOR MOTOR VEHICLES 审中-公开
标题翻译：辅助转向，特别是机动车辆
公开(公告)号：WO1993023277A1
公开(公告)日：1993-11-25
申请号：PCT/EP1993001170
申请日：1993-05-12
申请人： ZF FRIEDRICHSHAFEN AG , MAJER, Hans-Werner , SCHÖFFEL, Jörgen , SCHÄNZEL, Rainer
发明人： ZF FRIEDRICHSHAFEN AG
IPC分类号： B62D05/083
CPC分类号： B62D5/061
摘要： An assisted steering mechanism, in particular for motor vehicles, has a control valve (1) designed as a rotary slide valve for controlling the transport by a servopump (3) of a pressurized medium from a container (4) to and from the pressure chambers of a servomotor (2). The control valve (1) has two feedback chambers (10, 11) connected each by a fixed throttle (12, 13) and by a common throttle (14) to a pressure line (15) of the servopump (3). The feedback pressure acting in the feedback chambers (10, 11) can be limited to a maximum value by a cutting-off valve (18) designed as a manometer whose pick-up pressure can be adjusted from the outside without dismounting it.

4. 发明申请

WO1993013971A1 ROTARY VALVE FOR HYDRAULIC POWER STEERING WITH REDUCED NOISE AND LINEAR BOOST CHARACTERISTIC 审中-公开
标题翻译：具有减少噪声和线性增强特性的液压动力转向旋转阀
公开(公告)号：WO1993013971A1
公开(公告)日：1993-07-22
申请号：PCT/AU1993000015
申请日：1993-01-15
申请人： A.E. BISHOP & ASSOCIATES PTY LIMITED , ROESKE, Klaus, Juergen
发明人： A.E. BISHOP & ASSOCIATES PTY LIMITED
IPC分类号： B62D05/083
CPC分类号： B62D5/0837 , Y10T137/86646 , Y10T137/86662
摘要： A rotary valve having chamfers (26, 39) at the groove edges (31) of its input-shaft (10) which, in conjunction with axially extending troughs (44), form metering edge contours. The chamfers (26, 39) and troughs (44) at the edges (31) of the grooves (18a, 18b) interacting with sleeve slots (19) to reduce valve hiss and linearise the boost characteristic of the valve.
摘要翻译：旋转阀在其输入轴（10）的凹槽边缘（31）处具有倒角（26,39），其与轴向延伸的凹槽（44）一起形成计量边缘轮廓。在凹槽（18a，18b）的边缘（31）处的倒角（26,39）和槽（44）与套筒槽（19）相互作用以减小阀门嘶嘶声并使阀的升压特性线性化。

5. 发明申请

WO1997021579A1 STEERING VALVE WITH CLOSED CENTRE 审中-公开
标题翻译：转向控制阀闭心
公开(公告)号：WO1997021579A1
公开(公告)日：1997-06-19
申请号：PCT/EP1995004854
申请日：1995-12-09
申请人： TRW FAHRWERKSYSTEME GMBH & CO. KG , SPILLNER, Robert , VILE, David , PRITCHARD, Geoffrey
发明人： TRW FAHRWERKSYSTEME GMBH & CO. KG
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , Y10T137/86654 , Y10T137/86662
摘要： In order to reduce the number of components required and increase the service life by preventing friction resulting from large-diameter seals, the invention proposes improving a steering valve which has a closed centre for supplying hydraulic pressure to an actuator and comprises an input shaft (2), an output shaft (3), a torsionally resilient element (11) which is connected at one end to the input shaft (2) and at the other end to the output shaft (3), a control pressure switching arrangement (4) and a torque/axial force conversion unit (19-23) in that at least one hydraulic line (15) is formed to guide reaction pressure in the input shaft (2).
摘要翻译：为了减少所需的组件和通过阻止由大直径垫圈的摩擦增加使用寿命是转向阀具有闭合中心用于供给与液压致动器，包括：输入轴（2），输出轴（3），扭力弹性元件（ 11），其被连接（在一端与输入轴2），而另一端与输出轴（3），一个控制压力切换装置（4）和一个扭矩/轴向力转换器单元（19-23）在至少改善用于引导在所述输入轴（2）中的反应压力的液压管线（15）形成。

6. 发明申请

WO1994000328A1 ROTARY SLIDE VALVE FOR POWER ASSISTED STEERING SYSTEMS OF MOTOR VEHICLES 审中-公开
标题翻译：汽车动力辅助转向系统的旋转滑阀
公开(公告)号：WO1994000328A1
公开(公告)日：1994-01-06
申请号：PCT/EP1993001526
申请日：1993-06-16
申请人： ZF FRIEDRICHSHAFEN AG , RUPP, Arthur
发明人： ZF FRIEDRICHSHAFEN AG
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , Y10T29/49416 , Y10T137/86638
摘要： A rotary slide valve (1) for power assisted steering systems of motor vehicles has a rotary slide (2) rotatively guided in a limited manner in a control bushing (3). The control bushing (3) is rotatively linked to a valve output member (7). The rotary slide (2) is linked to the valve output member (7) by a torsion bar (9) and by a dead travel (10). The dead travel coupling (10) consists of a driving profile (16) of the valve output member (7) and of recesses (17) shaped at the free end of the rotary slide (2). The rotary slide (2) is manufactured with its control longitudinal grooves (12, 13) and with its recesses (17) by a non-cutting shaping process. In order to simplify this production process and to reduce the size of the rotary slide valve (1), the recesses (17) of the rotary slide (2) are arranged in the control longitudinal grooves (13) of the rotary slide (2), which are open towards one end.
摘要翻译：用于机动车辆动力转向的旋转阀（1）包括在控制套筒（3）中以有限旋转引导的旋转阀芯（2）。控制套筒（3）与阀门的出口构件（7）一体旋转。旋转阀芯（2）通过扭杆（9）和真空联轴器连接到阀的出口构件（7）。联轴器（10）由用于驱动阀的出口构件（7）的轮廓（16）和形成在旋转滑块（2）的自由端处的凹槽（17）组成。根据制造方法，旋转阀芯（2）由其纵向控制槽（12,13）和其凹槽（17）制成，而不会除去切屑。为了简化制造过程并降低了阀的旋转滑动的尺寸（1）的滑阀，所述凹部（17）（2）位于所述旋转滑动的纵向控制槽（13）（2），这是开放的一端。

7. 发明申请

WO1993009019A1 ROTARY VALVE FOR HYDRAULIC POWER STEERING 审中-公开
标题翻译：旋转阀用于液压动力转向
公开(公告)号：WO1993009019A1
公开(公告)日：1993-05-13
申请号：PCT/AU1992000580
申请日：1992-10-28
申请人： JAMES N KIRBY PRODUCTS PTY LIMITED , TIEDMAN, Kelvin, John
发明人： JAMES N KIRBY PRODUCTS PTY LIMITED
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , Y10T137/6031 , Y10T137/86662
摘要： A rotary valve for hydraulic power steering of vehicles in which one or more slots in the sleeve (11) of the valve is or are constructed to exit from the end of the sleeve (11) to form, in an annular extension of the sleeve (11), a radially extending aperture (17) the sides of which are in alignment with the sides of a slot in the sleeve. The input shaft (10) has formed on its surface at a point externally of the sleeve (11) one or more projections (13) aligned with one or more of the lands between blind ended slots so that by the use of an appropriate tool (18) each projection (13) can be brought into and held accurately in alignment with one of the apertures (17) on the sleeve (11) so that permanent connection of the input shaft (10) and torsion bar can be carried out to ensure symmetry of operation of the valve.
摘要翻译：一种用于车辆的液压动力转向的旋转阀，其中，所述阀的套筒（11）中的一个或多个槽被构造成从所述套筒（11）的端部排出以在所述套筒的环形延伸部 11），径向延伸的孔（17），其侧面与套筒中的槽的侧面对准。输入轴（10）在其表面上在套筒（11）的外部形成一个或多个突起（13），其与盲端槽之间的一个或多个焊盘对准，使得通过使用适当的工具（如图18所示，每个突起（13）可以被带入和保持准确地与套筒（11）上的孔（17）中的一个对准，从而可以执行输入轴（10）和扭杆的永久连接以确保对称操作阀门。

8. 发明申请

WO1986005753A1 ROTARY SLIDING VALVE FOR HYDRAULIC POWER-ASSISTED STEERING SYSTEMS 审中-公开
标题翻译：用于液压动力辅助转向系统的旋转滑阀
公开(公告)号：WO1986005753A1
公开(公告)日：1986-10-09
申请号：PCT/EP1986000181
申请日：1986-03-26
申请人： ZAHNRADFABRIK FRIEDRICHSHAFEN AG , ELSER, Dieter , HETZEL, Helmut , KELLER, Manfred
发明人： ZAHNRADFABRIK FRIEDRICHSHAFEN AG
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , F16K47/045 , Y10T137/86654 , Y10T137/86662
摘要： A rotary sliding valve consisting of a valve liner (1) and a rotary sliding valve (2) is fitted with control channels (3 to 8 or 16 to 18) distributed around the periphery having control edges (e.g. 27, 28) for control and distribution of the pressurized oil. The pressure buildup in an ancillary servomotor (12) is managed by deflecting part of the incoming flow. This deflection occurs at the control edges in control phases. A return flow channel (20) located behind each of the incoming flow control edges (e.g. 28) is fitted with a deep gap (34) which has a relatively large flow-through cross section. On both sides of the deep gap are arranged choke gaps (35 and 36). The choke gaps have a narrow choke cross-section. When the rotating walve (2) is rotated, e.g. in a clockwise direction, a high pressure gradient develops between the control channel (3) connected with the active pressure chamber (10) and the return-flow channel (20). In order to avoid the production of hissing noises when the pressurized oil enters the return flow channel (20), the deep gap (34) is closed at the time of a control phase (9), still in the low pressure area at approximately 30 bar. Then, in the high pressure area, the pressure regulation is effected only by way of the choke gaps (35 and 36), with the deflected flow being conducted over a long choke stretch. In this choke stretch the pressure is gradually reduced to that of the low pressure area so that there are no flow-out noises at the entry to the return flow channel (20).
摘要翻译：由阀衬（1）和旋转滑阀（2）组成的旋转滑阀装有围绕具有控制边缘（例如27,28）的周边分布的控制通道（3至8或16至18），用于控制和分配加压油。辅助伺服电动机（12）中的压力累积是通过偏转进入流的一部分来管理的。该偏转发生在控制阶段的控制边缘。位于每个进入流量控制边缘（例如28）后面的回流通道（20）装配有具有相对较大的流过横截面的深间隙（34）。在深沟的两侧布置扼流圈（35和36）。扼流圈具有窄的扼流截面。当旋转的瓦片（2）旋转时，例如，在顺时针方向上，在与主动压力室（10）连接的控制通道（3）和回流通道（20）之间形成高压梯度。为了避免当加压油进入回流通道（20）时产生嘶嘶声，深度间隙（34）在控制阶段（9）时闭合，仍然在低压区域中约为30° 酒吧。然后，在高压区域中，仅通过阻塞间隙（35和36）实现压力调节，其中偏转流在长的扼流圈上进行。在该扼流器拉伸中，压力逐渐降低到低压区域的压力，使得在返回流动通道（20）的入口处没有流出的噪声。

9. 发明申请

WO1998024678A1 FEEDBACK SYSTEM FOR A SERVO VALVE SYSTEM 审中-公开
标题翻译：溯及既往安排在伺服阀装置
公开(公告)号：WO1998024678A1
公开(公告)日：1998-06-11
申请号：PCT/EP1997006581
申请日：1997-11-26
申请人： MERCEDES-BENZ LENKUNGEN GMBH , SCHICK, Bernd , LANGKAMP, Bernd , BREUNING, Edwin , KÖHLER, Karl-Hans
发明人： MERCEDES-BENZ LENKUNGEN GMBH
IPC分类号： B62D05/083
CPC分类号： B62D5/083 , Y10T137/86654
摘要： The invention relates to a feedback system for a hydraulic servo valve system in the form of a rotary-disk valve system consisting of a rotary-disk valve (1) and a control bush (2) that coaxially surrounds the rotary-disk valve and can be pivoted in relation to it, for use notably in power-steering units in motor vehicles. On a shaft (9) situated on the side of the rotary-disk valve, V-grooves (10) are arranged axially into which feedback elements (15) can be pressed by adjustable hydraulic pressure. These feedback elements are radially located on a section of bush (11) that is connected to the control bush (2) in such a way that it cannot be rotated.
摘要翻译：本发明涉及一种反应装置，在形成于与旋转滑动（1）和所述旋转滑动同轴全面，相对于所述旋转滑动可转动控制套筒（2）的旋转阀组件的液压伺服阀组件的方式的凹部，特别是用于机动车辆的动力转向系统。轴向V形槽（10）被设置在旋转叶片侧轴部分（9），被压入到其被旋转地固定到一个与控制套筒（2）连接到所述套筒部分（11）的径向引导所述可控液压反应体（15）。

10. 发明申请

WO1996034788A1 ROTARY VALVE FOR POWER STEERING GEAR 审中-公开
标题翻译：动力转向齿轮旋转阀
公开(公告)号：WO1996034788A1
公开(公告)日：1996-11-07
申请号：PCT/AU1996000266
申请日：1996-05-03
申请人： AE BISHOP & ASSOCIATES PTY. LIMITED , UNISEARCH LTD. , THOMAS, Andrew, Donald
发明人： AE BISHOP & ASSOCIATES PTY. LIMITED , UNISEARCH LTD.
IPC分类号： B62D05/083
CPC分类号： B62D5/0835 , B62D5/083 , Y10T137/86654 , Y10T137/86662
摘要： A rotary valve for a hydraulic power steering gear, has a sleeve (11) with slots (19a-b) journalled to an input-shaft (10) with grooves (18a-c), the co-acting sleeve slots and input-shaft grooves defining axially extending orifices. The orifices are ported as a network such that they form primary and secondary hydraulic Wheatstone bridges arranged in parallel, each bridge comprising two limbs each of which incorporate inlet and return orifices communicating to respective inlet and return ports of the valve. The limbs of the primary bridge incorporate means providing hydraulic communication to one of the cylinder port, whereas the limbs of the secondary bridge do not incorporate such means. The return orifice (34a, 34b) in each secondary bridge limb is formed by a metering edge contour on the edge of a secondary return groove (18c) and circumferentially overlapping an adjacent sleeve bore land when the valve is in its neutral position to such an extent such that the return orifice provides a restriction to hydraulic flow for all valve operating angles thereby applying a back pressure to the upstream inlet orifice. The back pressure being sufficient to significantly suppress the generation of cavitation noise in the inlet orifice.
摘要翻译：一种用于液压动力舵机的旋转阀，具有套筒（11），其具有轴颈（19a-b），所述槽（19a-b）轴颈连接到具有槽（18a-c）的输入轴（10），所述配合套筒槽和输入轴限定轴向延伸孔的凹槽。孔被移植成网络，使得它们形成并联布置的主要和次级液压惠斯通电桥，每个桥包括两个分支，每个分支包括与阀的相应入口和返回端口连通的入口和返回孔。主桥的四肢包括提供与气缸端口之一的液压连通的装置，而次级桥的四肢不包括这种装置。每个次级桥梁中的返回孔（34a，34b）由二级回流槽（18c）的边缘上的计量边缘轮廓形成，并且当阀门处于其相对的中间位置使得返回孔为所有阀操作角度的液压流量提供限制，从而对上游入口孔施加背压。背压足以显着地抑制入口孔中产生气穴噪声。

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