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1. 发明授权

US4981189A Power assisted vehicle steering system and gear and power assistance means for such a gear 失效
标题翻译：动力辅助车辆转向系统以及用于这种齿轮的齿轮和动力辅助装置
公开(公告)号：US4981189A
公开(公告)日：1991-01-01
申请号：US366775
申请日：1989-06-15
申请人： Anthony J. Wilder
发明人： Anthony J. Wilder
IPC分类号： B62D5/04 , B62D5/087 , B62D5/18 , B62D5/22
CPC分类号： B62D5/087 , B62D5/04 , B62D5/22
摘要： A power assisted vehicle steering system, gear or a power assistance means for a vehicle steering gear comprises a housing 1 for a rack bar 4 which is displaceable in response to a steering input. The rack bar housing is resiliently mounted in a bracket 10 bolted to a frame 9 of the vehicle and is longitudinally displaceable relative to the bracket 10 as a reaction from displacement of the rack bar 4. Longitudinal displacement of the housing 3 adjusts a spool valve 20 on the bracket 10. Adjustment of the valve 20 controls a ram 13 which reacts between the bracket 10 and the rack bar 4 to provide power assistance to the intended displacement of the rack bar 4.The valve 20 can be incorporated as part of the ram 13. The ram 13 can be replaced by an alternative servo motor such as an electric motor and an alternative form of control such as an electrical switch to load cell can be provided for the valve 20.Components of the gear are conveniently provided as a kit for conversion of a wholly manual gear to a power assisted gear.

2. 发明授权

US4823839A Rotary valve assembly and a method of assembling a rotary valve 失效
标题翻译：旋转阀组件和组装旋转阀的方法
公开(公告)号：US4823839A
公开(公告)日：1989-04-25
申请号：US37808
申请日：1987-04-13
申请人： Alan Rayner
发明人： Alan Rayner
IPC分类号： B62D5/083 , F15B13/04
CPC分类号： B62D5/083 , Y10T137/86662
摘要： A rotary valve assembly and a method of assembling such a valve has a sleeve 5 and a rotor 3 relative rotation between which from a neutral condition adjusts the valve. The sleeve and rotor are biased to the neutral condition by an encircling C-spring reacting on pins corresponding to projections 11a and 12 relatively rotatable with the sleeve 5 and rotor 3 respectively. For setting-up the valve in its neutral condition the sleeve and rotor are mounted in a jig 15 with the projection 11a of the jig engaging in a recess 27 of an adjustable component in the form of a second C-spring 24 which is intitially rotatable on the sleeve 5. The sleeve 5 is rotated relative to the spring 24 and projections 11a and 12 to determine the neutral condition by the characteristics of fluid applied through valve ports E, S, P.sub.1, P.sub.2. The spring 24 is now welded or otherwise secured to the sleeve 5. The spring 24 serves to frictionally engage the sleeve and alleviates displacement relative thereto following adjacent of the valve to the neutral condition and prior to welding. In a second embodiment the projection 11a directly engages the sleeve 5 to restrain relative rotation therebetween and the pin 12 is carried by a C-spring to be rotationally adjustable on the rotor 3 for the purpose of setting-up the valve in its neutral condition prior to the pin 12 being welded to the rotor 3.
摘要翻译：旋转阀组件和组装这种阀的方法具有套筒5和转子3的相对旋转，在中间状态之间调节阀。套筒和转子通过围绕对应于与套筒5和转子3相对旋转的凸起11a和12的销钉的环绕C弹簧偏压到中性状态。为了在其中性条件下安装阀，套筒和转子安装在夹具15中，其中夹具的突起11a接合在第二C形弹簧24形式的可调部件的凹部27中，该第二C形弹簧24是可以旋转的套筒5相对于弹簧24和突起11a和12旋转，以通过通过阀口E，S，P1，P2施加的流体的特性来确定中性条件。弹簧24现在被焊接或以其它方式固定到套筒5.弹簧24用于摩擦地接合套筒并且减轻相对于阀之后相对于中性状态并在焊接之前的位移。在第二实施例中，突起11a直接接合套筒5以限制它们之间的相对旋转，并且销12由C形弹簧承载，以在转子3上可旋转地调节，以便先将阀门置于其中性状态销12被焊接到转子3上。

3. 发明授权

US4794997A Road vehicle power assisted steering system 失效
标题翻译：道路车辆助力转向系统
公开(公告)号：US4794997A
公开(公告)日：1989-01-03
申请号：US12256
申请日：1987-02-09
申请人： Bernard G. North
发明人： Bernard G. North
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： A road vehicle power assisted steering system comprises a power assisted steering gear assembly (1) in which power assistance to the displacement of an output member of the steering gear (1) is provided by an electric motor in response to a steering gear torque applied to the input member (2). Motorcon also of the electric motor are capable of being switched from a power supply (10), to a resistive load and are controlled by control means (11) in response to the steering torque so that any kinetic energy of the displaceable components of the steering gear (1) may be dissipated by the resistive load to which the coils are switched by the control means when the steering torque falls below a predetermined value.
摘要翻译：公路车辆动力辅助转向系统包括动力辅助舵机组件（1），其中响应于施加到舵机的转向齿轮扭矩，由电动机提供对舵机（1）的输出构件的位移的动力辅助输入构件（2）。电动机的Motorcon也能够从电源（10）切换到电阻负载，并且由控制装置（11）响应于转向转矩来控制，使得转向装置的可移动部件的任何动能当转向转矩低于预定值时，齿轮（1）可以被控制装置切换的线圈的电阻负载消散。

4. 发明授权

US4721175A Rack and pinion steering gear assembly 失效
标题翻译：齿条齿轮转向齿轮总成
公开(公告)号：US4721175A
公开(公告)日：1988-01-26
申请号：US933782
申请日：1986-11-24
申请人： Philip M. Butler
发明人： Philip M. Butler
IPC分类号： B62D5/22 , F16H19/00
CPC分类号： F16H19/04 , B62D5/22 , Y10T403/31
摘要： A rack and pinion steering gear assembly has a rack bar 5 displaceable through a cylindrical bush 7 secured by a pin 38 in a rack bar housing 11. A flexible concertina-type bellows 21 is provided between the housing 11 and a tie rod on the end of the rack bar. The bush 7 has an annular recess 42 which is in constant communication by way of longitudinal grooves 39 in the surface of the bush with the interior of the bellows 21. The recess 42 coincides with an aperture 43 in the housing wall 11 within which is snap fitted a tubular plug 44 through which the bellows 21 breathes by way of the recess 42 and grooves 39. The bellows 21 can breathe through the plug 44 to atmosphere (preferably by way of a filter) or by way of a pipe to the interior of bellows located at the opposite end of the rack bar. The bush 7 can partly define a pressure chamber 23 of a piston and cylinder unit for power assisted steering.
摘要翻译：齿条和小齿轮转向齿轮组件具有齿条5，齿条5可通过圆柱形衬套7移动，圆柱形衬套7由销38固定在齿条杆壳体11中。弹性的三角形型波纹管21设置在壳体11和端部的拉杆之间的机架栏。衬套7具有环形凹部42，其通过波纹管21内部的衬套的表面中的纵向凹槽39而恒定地连通。凹部42与容纳壁11中的孔43重合，其中卡扣配有一个管状塞子44，波纹管21通过凹槽42和凹槽39通过该管状塞子44进行呼吸。波纹管21可以通过塞子44呼吸到大气（最好是通过过滤器）或者通过管道到达内部波纹管位于齿条的相对端。衬套7可以部分地限定用于动力辅助转向的活塞和气缸单元的压力室23。

5. 发明授权

US4716983A Torque sensing vehicle steering system 失效
标题翻译：转矩传感车辆转向系统
公开(公告)号：US4716983A
公开(公告)日：1988-01-05
申请号：US822829
申请日：1986-01-27
申请人： Frederick J. Adams , Kenneth Chandler
发明人： Frederick J. Adams , Kenneth Chandler
IPC分类号： B62D5/06 , B62D5/22 , B62D6/10 , B62D5/00
CPC分类号： B62D6/10
摘要： A steering system has annular pressure responsive electric components, such as piezo-electric transducers, mounted between thrust and restraining faces respectively, the transducers respond to a mechanical load applied to them by generating or determining electrical signals which are proportional to the load, the signals are supplied to a comparator by way of electrical connections. The transducers are arranged in pairs on the axially opposed faces of a bearing, so that in response to an axial thrust applied to the bearing by an input shaft of a steering gear incorporated in the system, the signals provided by the transducers will change from a predetermined comparative condition, one signal increasing in response to the increased compressive load on one transducer, the other signal decreasing in response to a decrease in compressive load on the other transducer in the pair. The predetermined comparative condition is established by compressing the transducer pair during installation by means of a retaining cap, which is screw threadedly connected to a housing. The changes in the electrical signal enable the comparator to determine the magnitude and direction of the thrust and to use this information for monitoring or control purposes.
摘要翻译：转向系统具有分别安装在推力和限制面之间的环形压力响应电气部件，例如压电换能器，换能器通过产生或确定与负载成比例的电信号来响应施加到它们的机械负载，信号通过电气连接提供给比较器。换能器成对地布置在轴承的轴向相对的表面上，使得响应于由系统中的转向装置的输入轴施加到轴承的轴向推力，换能器提供的信号将从预定的比较条件，一个信号响应于一个换能器上的增加的压缩载荷而增加，另一个信号响应于该对中的另一个换能器上的压缩载荷的减小而减小。通过在安装期间通过螺纹连接到壳体的保持盖压缩换能器对来建立预定的比较条件。电信号的变化使比较器能够确定推力的大小和方向，并将此信息用于监控或控制目的。

6. 发明授权

US4580651A Power assistance steering system for a vehicle 失效
标题翻译：车辆动力辅助转向系统
公开(公告)号：US4580651A
公开(公告)日：1986-04-08
申请号：US654382
申请日：1984-09-25
申请人： Frederick J. Adams
发明人： Frederick J. Adams
IPC分类号： B62D5/06 , B62D5/07 , B62D5/22
CPC分类号： B62D5/06
摘要： A power assistance steering system for a vehicle, including a fluid pump which directs fluid pressure selectively to a movement assistance device to assist steering and a prime mover for driving the pump through a microprocessor in accordance with signals generated by a sensor responsive to steering torque.
摘要翻译：一种用于车辆的动力辅助转向系统，包括流体泵，其将流体压力选择性地引导到运动辅助装置以辅助转向，以及原动机，其根据由传感器响应于转向转矩产生的信号通过微处理器驱动泵。

7. 发明授权

US4865150A Power assistance vehicle steering mechanisms 失效
标题翻译：动力辅助车辆转向机构
公开(公告)号：US4865150A
公开(公告)日：1989-09-12
申请号：US186047
申请日：1988-04-25
申请人： Frederick J. Adams
发明人： Frederick J. Adams
IPC分类号： B62D5/22
CPC分类号： B62D5/087 , B62D5/22
摘要： In a power assisted rack and pinion vehicle steering mechanism, a rack and a pinion engage within a housing. The pinion is mounted on a pinion shaft which is journalled in bearings in a cage. A lever is fixed to the cage and projects from the cage through the housing. The lever has a part-spherical seating portion which engages a part-spherical seat in the housing. Spring means biases the rack into engagement wiht the pinion, and through the cage biases the part-spherical seating portion of the lever into engagement with the seat on the housing. Steering torque imparted on the pinion moves the rack axially and causes a reaction on the pinion which rotates the cage about the center of the part-spherical seating portion. This rocks the lever to actuate power assistance means.

8. 发明授权

US4680981A Rack and pinion gear and a method of assembling such a gear 失效
标题翻译：齿条齿轮和组装这种齿轮的方法
公开(公告)号：US4680981A
公开(公告)日：1987-07-21
申请号：US704420
申请日：1985-02-22
申请人： Philip A. Downing
发明人： Philip A. Downing
IPC分类号： B62D3/12 , F16H19/00 , F16H55/28 , F16H57/12
CPC分类号： F16H19/04 , B62D3/123 , F16H55/283 , Y10T29/4984 , Y10T74/1967
摘要： A rack and pinion gear and a method of assembling such a gear. The gear has a rack bar 1 the rack 4 of which is biased into engagement with the pinion 6 by a spring loaded support 7 which slidably (or rolling) engages a bearing surface 8 of the rack bar. The bearing surface has a central region 9 parallel to the rack axis and tapering end regions 10 and 11 which reduce the thickness of the rack bar from the central region 9. The length C of the region 9 corresponds to 1 to 1.5 revolutions of the pinion 6 while the operative length A of the rack corresponds to at least three revolutions of the pinion. The pinion rotates about an eccentric axis 14 which varies the rack bar tightness. To determine the position of maximum tightness in which the spring loading of the support 7 is to be adjusted, the pinion is rotated from a central position on the rack 4 clockwise and counter-clockwise to displace the rack bar in each instance through a distance corresponding to 0.5 revolutions of the pinion from the said central position. During this displacement the reaction on the support 7 is observed to determine the position in which the maximum tightness of the rack bar is encountered where the spring loading of the support means is finally set.The invention is applicable to supports 7 which engage the rack bar in one or more positions around the support surface.
摘要翻译：一种齿条齿轮和组装这种齿轮的方法。齿轮具有齿条1，其齿条4通过可滑动（或滚动）接合齿条的轴承表面8的弹簧加载的支撑件7而被偏压成与小齿轮6接合。轴承表面具有平行于齿条轴线的中心区域9和锥形端部区域10和11，其减小了齿条从中心区域9的厚度。区域9的长度C对应于小齿轮的1至1.5转 6，而机架的操作长度A对应于小齿轮的至少三圈。小齿轮围绕改变齿条紧度的偏心轴线14旋转。为了确定支撑件7的弹簧载荷将被调整的最大紧度的位置，小齿轮从机架4上的中心位置顺时针和逆时针旋转，以使齿条在每一种情况下相对于对应的距离从所述中心位置到小齿轮的0.5转。在该位移期间，观察到支撑件7上的反作用力来确定最终固定支撑装置的弹簧加载时所遇到的齿条的最大紧度的位置。本发明可应用于在支撑表面周围的一个或多个位置处接合齿条的支撑件7。

9. 发明授权

US4651841A Power assistance steering system for a vehicle 失效
标题翻译：车辆动力辅助转向系统
公开(公告)号：US4651841A
公开(公告)日：1987-03-24
申请号：US694338
申请日：1985-01-24
申请人： Frederick J. Adams
发明人： Frederick J. Adams
IPC分类号： B62D5/30 , B62D5/06
CPC分类号： B62D5/30
摘要： A power assistance steering system for a vehicle, particularly a heavy vehicle, having a first power assistance subsystem known per se and a second power assistance subsystem including a fluid pump for directing fluid pressure selectively to a movement assistance device to assist steering and a prime mover for driving the pump in accordance with signals generated by a sensor responsive to steering.
摘要翻译：一种用于车辆，特别是重型车辆的动力辅助转向系统，其具有本身已知的第一动力辅助系统和包括用于将流体压力选择性地引导到运动辅助装置以辅助转向和原动机的流体泵的第二动力辅助系统用于根据响应于转向的传感器产生的信号驱动泵。

10. 发明授权

US4627509A Power assistance steering systems for vehicles 失效
标题翻译：车辆动力辅助转向系统
公开(公告)号：US4627509A
公开(公告)日：1986-12-09
申请号：US727822
申请日：1985-04-26
申请人： Frederick J. Adams , Kenneth J. D. Heap
发明人： Frederick J. Adams , Kenneth J. D. Heap
IPC分类号： B62D5/07 , B62D5/06
CPC分类号： B62D5/06
摘要： A power assistance steering system 10 for a vehicle comprises steering gear 12 having an internal hydraulic ram supplied with hydraulic fluid by a pump 14 from a reservoir 16 via a solenoid valve 18 controlled by a micro-processor 20 which also controls an electric motor 22 for driving pump 14. Steering input torque is sensed by a torque sensor 36 and steering direction is sensed by a direction switch 34. Output signals from these devices are fed to micro-processor 20 which controls solenoid valve 18 and pump motor 22 accordingly, varying the motor speed in accordance with the pressure requirements of the steering ram as sensed by the torque sensor. In a further embodiment the pump is driven at a constant speed and a proportional control valve 74 is controlled by a micro-processor 78 to vary the fluid pressure supply.
摘要翻译：用于车辆的动力辅助转向系统10包括转向齿轮12，转向齿轮12具有由泵14从泵14经由电控阀18经由微处理器20控制的电磁阀18从储液器16供给液压流体的内部液压油缸，该控制器也控制电动机22，驱动泵14.由转矩传感器36检测转向输入转矩，并通过方向开关34检测转向方向。这些装置的输出信号被馈送到微处理器20，微处理器20相应地控制电磁阀18和泵马达22，电机转速根据扭矩传感器感应到的转向柱塞的压力要求而定。在另一实施例中，泵以恒定速度驱动，并且比例控制阀74由微处理器78控制以改变流体压力供应。

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