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公开(公告)号：US20120312624A1
公开(公告)日：2012-12-13
申请号：US13158495
申请日：2011-06-13
IPC分类号： B62D5/12
摘要： A power steering gear assembly 10 which is used to turn steerable vehicle wheels 50, 52 includes a piston 20 disposed in a motor cylinder 16. A series 44 of rack teeth are connected with the piston 20. A first tooth space 94 is formed between first and second teeth 80, 76 in the series 44 of rack teeth. The first tooth space 94 has a root portion 126 which includes first and second fillets 132, 136. The first fillet 132 has a larger radius of curvature 130 than the second fillet 136. The first and second fillets 132, 136 have centers of curvature which are both disposed between a central axis 104 of the first tooth space 94 and the second rack tooth 76. The center pinion gear tooth 190 has side surfaces 200 and 202 with intermediate portions 216 and 230 which are offset from continuously curving spatial envelopes 212 and 228 containing tip end portions 208 and 222 and root end portions 210 and 224 of the center pinion gear tooth.
摘要翻译： 用于转向可转向车轮50,52的动力转向器组件10包括设置在电动机缸16中的活塞20.一系列齿条齿与活塞20连接。第一齿空间94形成在第一 以及齿条齿系列44中的第二齿80,76。 第一齿空间94具有包括第一和第二圆角132,136的根部部分126.第一圆角132具有比第二圆角136更大的曲率半径130.第一和第二圆角132,136具有曲率中心， 两者都设置在第一齿空间94的中心轴线104和第二齿条齿76之间。中心小齿轮齿190具有侧表面200和202，其中间部分216和230从连续弯曲的空间信封212和228偏移 包含中心小齿轮齿的顶端部分208和222以及根端部分210和224。
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公开(公告)号：US06394219B1
公开(公告)日：2002-05-28
申请号：US09595836
申请日：2000-06-16
IPC分类号： B62D5087
CPC分类号： B62D5/062 , Y10T137/7845 , Y10T137/7846 , Y10T137/7866
摘要： A hydraulic power steering system (10) for turning steerable wheels of a vehicle. The system (10) comprises a steering gear (12) including a hydraulic motor and a steering valve. The steering gear is susceptible to pressure fluctuations that cause noise during steering. The system (10) further comprises a pressure relief valve (14) having an unactuated condition and actuated conditions. The pressure relief valve (14), in the unactuated condition, restricts fluid flow through the pressure relief valve (14). In an actuated condition, the pressure relief valve (14) permits fluid flow through the pressure relief valve (14). The pressure relief valve (14) progressively is operable from the unactuated condition to an actuated condition as a pressure differential between the inlet (38) and the outlet (40) of the steering gear (12) increases.
摘要翻译： 一种用于转向车辆的转向轮的液压动力转向系统（10）。 系统（10）包括包括液压马达和转向阀的舵机（12）。 舵机易受压力波动的影响，导致转向过程中的噪音。 系统（10）还包括具有未致动状态和致动状态的减压阀（14）。 在未致动状态下的减压阀（14）限制流过压力释放阀（14）的流体。 在致动状态下，减压阀（14）允许流体流过压力释放阀（14）。 随着转向装置（12）的入口（38）和出口（40）之间的压力差增加，逐渐地，减压阀（14）可从未致动状态操作到致动状态。
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3.发明授权Steering control valve with different size flow gaps for noise suppression 失效具有不同尺寸流量间隙的转向控制阀，用于噪声抑制
公开(公告)号：US5562124A
公开(公告)日：1996-10-08
申请号：US391236
申请日：1995-02-21
申请人： Hermann W. Behrens , George M. Harpole , Jane M.-C. Lin , Michael F. Wolff , Wendell L. Gilbert
发明人： Hermann W. Behrens , George M. Harpole , Jane M.-C. Lin , Michael F. Wolff , Wendell L. Gilbert
CPC分类号： B62D5/0837 , Y10T137/86654 , Y10T137/86662
摘要： A valve (10) for controlling flow of hydraulic fluid. The valve (10) has first and second valve members (80, 82) which have a plurality of lands and grooves. The valve members (80, 82) are relatively movable from a neutral position to a displaced position in which surface segments (202, 226, 208, 218) of respective pairs of lands overlap to form flow gaps (232, 234) for restricting flow of fluid between respective pairs of grooves. At least one (234) of the flow gaps is divergent by having a cross-sectional flow area which increases along a direction of fluid flow and at least one (232) of the flow gaps is convergent by having a cross-sectional flow area which decreases along a direction of fluid flow. The flow gaps (232, 234) have minimum cross-sectional flow areas (A, B) defined by the surface segments. The flow gaps (232, 234) are sized such that the minimum cross-sectional flow area (A) of the convergent flow gap (232) is larger than the minimum cross-sectional flow area (B) of the divergent flow gap (234) for suppressing valve noise.
摘要翻译： 一种用于控制液压流体流动的阀门（10）。 阀（10）具有第一和第二阀构件（80,82），其具有多个平台和凹槽。 阀构件（80,82）可从中性位置相对移动到其中相应对的脊的表面段（202,226,208,218）重叠以形成用于限制流动的流动间隙（232,234）的位移位置 的各对槽之间的流体。 至少一个（234）的流动间隙通过具有沿流体流动方向增加的横截面流动面积而发散，并且至少一个（232）的流动间隙通过具有横截面流动面积而会聚， 沿着流体流动的方向减小。 流动间隙（232,234）具有由表面段限定的最小横截面流动面积（A，B）。 流动间隙（232,234）的尺寸使得会聚流动间隙（232）的最小横截面流动面积（A）大于发散流动间隙（234）的最小横截面积面积（B） ）用于抑制阀门噪音。
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公开(公告)号：US4942803A
公开(公告)日：1990-07-24
申请号：US316472
申请日：1989-02-27
CPC分类号： B62D5/24 , B62D5/083 , Y10T137/86662
摘要： A vehicle steering for turning the steerable wheels of a vehicle having a fluid motor with a housing defining a fluid chamber and a piston in the chamber dividing the chamber into first and second chamber portions. A rotatable steering input member is supported by the housing. A rotatable follow-up member is associated with the piston and rotatable upon movement of the piston in the chamber. A valve controls pressurized fluid flow to the first and second chamber portions. The valve comprises first and second relatively movable valve parts. One of the valve parts is connected with the input member and the other of the valve parts is connected with the follow-up member forming a unit therewith. The unit has a surface against which fluid pressure in the first and second chamber portions acts tending to create an axial force on the unit. Pressure is applied to another surface area of the unit to balance the axial force acting on the unit.
摘要翻译： 一种用于转动具有流体马达的车辆的可转向轮的车辆转向器，所述车辆具有限定流体室的壳体和所述腔室中的活塞，所述腔室将所述腔室分成第一和第二腔室部分。 可旋转转向输入构件由壳体支撑。 可旋转的跟随构件与活塞相关联并且可在活塞在腔室中移动时旋转。 阀门控制加压流体流到第一和第二室部分。 该阀包括第一和第二相对可动的阀部件。 阀部件中的一个与输入部件连接，另一个阀部件与后续部件连接，形成单元。 该单元具有表面，第一和第二室部分中的流体压力将趋向于在该单元上产生轴向力。 压力被施加到单元的另一个表面区域以平衡作用在单元上的轴向力。
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公开(公告)号：US4872393A
公开(公告)日：1989-10-10
申请号：US73711
申请日：1987-07-15
CPC分类号： B62D5/083 , B62D5/24 , Y10T137/86654
摘要： A vehicle steering for turning the steerable wheels of a vehicle having a fluid motor with a housing defining a fluid chamber and a piston in the chamber dividing the chamber into first and second chamber portions. A rotatable steering input member is supported by the housing. A rotatable follow-up member is associated with the piston and rotatable upon movement of the piston in the chamber. A valve controls pressurized fluid flow to the first and second chamber portions. The valve comprises first and second relatively movable valve parts. One of the valve parts is connected with the input member and the other of the valve parts is connected with the follow-up member forming a unit therewith. The unit has a surface against which fluid pressure in the first and second chamber portions acts tending to create an axial force on the unit. Pressure is applied to another surface area of the unit to balance the axial force acting on the unit.
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公开(公告)号：US5417244A
公开(公告)日：1995-05-23
申请号：US192263
申请日：1994-02-07
CPC分类号： B62D5/083 , Y10T137/86654
摘要： A valve for controlling flow of hydraulic fluid. The valve includes first and second relatively movable valve members (60 and 62). The valve members (60 and 62) include cooperating surfaces (112, 142, 144) which define first and second orifices for metering fluid from a pressurized fluid source (44) toward first and second locations (22 and 24) in a fluid utilization device (12). The valve members (60 and 62) have a displaced position in which the first orifice is increased in size and the second orifice is decreased in size. The increased size of the first orifice reduces a pressure drop across the first orifice. The decreased size of the second orifices increases a pressure drop across the second orifice. The valve members (60 and 62) include means (114 and 146) for increasing a pressure on a downstream side of the second orifice to reduce the pressure drop for controlling valve noise.
摘要翻译： 用于控制液压流体流量的阀。 阀包括第一和第二可相对移动的阀构件（60和62）。 阀构件（60和62）包括配合表面（112,142,144），其配合用于在流体利用装置中朝向第一和第二位置（22和24）计量来自加压流体源（44）的流体的第一和第二孔口 （12）。 阀构件（60和62）具有位移位置，其中第一孔口的尺寸增加并且第二孔口的尺寸减小。 第一孔口的增加的尺寸减小了穿过第一孔口的压降。 第二孔的减小的尺寸增加穿过第二孔的压降。 阀构件（60和62）包括用于增加第二孔的下游侧的压力以减少用于控制阀噪声的压降的装置（114和146）。
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公开(公告)号：US6026858A
公开(公告)日：2000-02-22
申请号：US988327
申请日：1997-12-10
申请人： Wendell L. Gilbert
发明人： Wendell L. Gilbert
CPC分类号： B62D5/083 , Y10T137/86638
摘要： A power steering assembly (10) includes a rotatable valve core (40) which is encircled by a rotatable valve sleeve (41). The valve core (40) and valve sleeve (41) have surfaces which cooperate to direct a flow of power steering fluid during relative rotation between the valve core (40) and valve sleeve (41). A bearing assembly (100) is disposed between the valve core (40) and the valve sleeve (41) at a location adjacent to an axially outer end portion of the valve core (40). The bearing assembly (100) includes a plurality of rotatable bearing elements (124) which transmit sidewise loads between the valve core (40) and the valve sleeve (41). A bearing surface (102) is disposed on an axially inner end portion of the valve core (40). The bearing surface (102) is slidable along an inner surface area (104) on the valve sleeve (41) to transmit a sidewise load during relative rotation between the valve core (40) and the valve sleeve (41).
摘要翻译： 动力转向组件（10）包括由可旋转阀套（41）包围的可旋转阀芯（40）。 阀芯（40）和阀套（41）具有在阀芯（40）和阀套（41）之间的相对旋转期间协作以引导动力转向流体流动的表面。 轴承组件（100）在与阀芯（40）的轴向外端部相邻的位置处设置在阀芯（40）和阀套（41）之间。 轴承组件（100）包括多个可旋转的轴承元件（124），其在阀芯（40）和阀套（41）之间传递侧向负载。 轴承表面（102）设置在阀芯（40）的轴向内端部上。 轴承表面（102）可沿着阀套（41）上的内表面区域（104）滑动，以在阀芯（40）和阀套（41）之间的相对旋转期间传递侧向负载。
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公开(公告)号：US5957027A
公开(公告)日：1999-09-28
申请号：US163515
申请日：1998-09-30
CPC分类号： B62D5/083 , Y10T137/86654
摘要： A hydraulic power steering gear (10) comprises first and second relatively rotatable valve members (40 and 42). The first valve member (40) includes a radially extending passage (64). The second valve member (42) has an arcuate cam surface (184). A detent member (220) acts between the first and second valve members (40 and 42). The detent member (220) has a curved outer surface (252). A spring (240) biases the detent member (220) radially outward against the cam surface (184). The spring (240) is disposed in the radially extending passage (64) in the first valve member (40). The detent member (220) is disposed in the arcuate cam surface (184) in the neutral condition and provides a physically perceptible indication to a driver of the vehicle of operation of the steering gear (10) between the neutral condition and the actuated condition.
摘要翻译： 液压动力舵机（10）包括第一和第二相对可旋转的阀构件（40和42）。 第一阀构件（40）包括径向延伸的通道（64）。 第二阀构件（42）具有弓形凸轮表面（184）。 止动构件（220）作用在第一和第二阀构件（40和42）之间。 止动构件（220）具有弯曲的外表面（252）。 弹簧（240）将止动构件（220）径向向外偏压抵靠凸轮表面（184）。 弹簧（240）设置在第一阀构件（40）中的径向延伸通道（64）中。 棘爪构件（220）在中立状态下设置在弧形凸轮表面（184）中，并且在空档状态和致动状态之间向舵机（10）的操作车辆的驾驶员提供物理上可察觉的指示。
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9.发明授权Steering control valve with flow gaps which change relative size for noise suppression 失效具有流隙的转向控制阀改变相对尺寸以进行噪声抑制
公开(公告)号：US5582207A
公开(公告)日：1996-12-10
申请号：US403488
申请日：1995-03-14
CPC分类号： B62D5/0837 , Y10T137/86654 , Y10T137/86662
摘要： A valve (10) for controlling flow of hydraulic fluid. The valve (10) includes first and second valve members (80, 82), each having a plurality of lands and grooves. The valve members (80, 82) are relatively movable from a neutral position to a displaced position in which surface segments (202, 226, 208, 218) of respective pairs of lands overlap to form flow gaps (232, 234) for restricting flow of fluid between respective pairs of grooves. At least one (234) of the flow gaps is divergent by having a cross-sectional flow area which increases along a direction of fluid flow therethrough and at least one (232) of the flow gaps is convergent by having a cross-sectional flow area which decreases along a direction of fluid flow therethrough. The flow gaps (232, 234) have minimum cross-sectional flow areas (A, B) defined by the surface segments. The flow gaps (232, 234) are sized such that the minimum cross-sectional area (A) of the convergent flow gap (232) is larger than the minimum cross-sectional area (B) of the divergent flow gap (234) at a first rotational position, and are sized such that the minimum cross-sectional area (A) of the convergent flow gap (232) is smaller than the minimum cross-sectional area (B) of the divergent flow gap (234) at a second rotational position for suppressing valve noise.
摘要翻译： 一种用于控制液压流体流动的阀门（10）。 阀（10）包括第一和第二阀构件（80,82），每个具有多个平台和凹槽。 阀构件（80,82）可从中性位置相对移动到其中相应对的脊的表面段（202,226,208,218）重叠以形成用于限制流动的流动间隙（232,234）的位移位置 的各对槽之间的流体。 至少一个（234）的流动间隙通过具有沿流体流动方向增加的横截面流动面积而发散，并且至少一个（232）的流动间隙通过具有横截面流动面积 其沿流体流过的方向减小。 流动间隙（232,234）具有由表面段限定的最小横截面流动面积（A，B）。 流动间隙（232,234）的尺寸使得会聚流动间隙（232）的最小横截面积（A）大于发散流动间隙（234）的最小横截面积（B） 第一旋转位置，并且其尺寸使得会聚流动间隙（232）的最小横截面积（A）小于第二旋转位置处的发散流动间隙（234）的最小横截面积（B） 用于抑制阀门噪音的旋转位置。
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公开(公告)号：US6079289A
公开(公告)日：2000-06-27
申请号：US189302
申请日：1998-11-10
IPC分类号： B62D5/083
CPC分类号： B62D5/083 , Y10T137/86638
摘要： A hydraulic power steering gear (10) for a vehicle comprises first and second valve members (40 and 42) which are disposed coaxial to one another and which are relatively rotatable about a first axis (38) to selectively port hydraulic fluid. The first valve member (40) has an associated axial bore (170). The axial bore (170) has a second axis (174) which extends parallel to the first axis (38). The second valve member (42) includes a cam surface (128). A plunger (200) is disposed in the axial bore (170) for movement along the second axis (174). The plunger has a detent surface (208). Springs (240) bias the plunger (200) axially toward the second valve member (42). A detent roller (220) acts between the first and second valve members (40 and 42). The detent roller (220) is located in the cam surface (128) and in the detent surface (208) in a neutral condition to provide a physically perceptible indication to a driver of the vehicle of operation between the neutral condition and an actuated condition.
摘要翻译： 一种用于车辆的液压动力舵机（10）包括第一和第二阀构件（40和42），其彼此同轴设置并且可围绕第一轴线（38）相对旋转，以选择性地输送液压流体。 第一阀构件（40）具有相关联的轴向孔（170）。 轴向孔（170）具有平行于第一轴线（38）延伸的第二轴线（174）。 第二阀构件（42）包括凸轮表面（128）。 柱塞（200）设置在轴向孔（170）中，用于沿着第二轴线（174）移动。 柱塞具有制动表面（208）。 弹簧（240）将柱塞（200）轴向偏压朝向第二阀构件（42）。 定位辊（220）作用在第一和第二阀构件（40和42）之间。 定位辊（220）在中立状态下位于凸轮表面（128）和止动表面（208）中，以在中性状态和致动状态之间向操作车辆的驾驶员提供物理上可察觉的指示。
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