Bi-Directional Multiple State Suspension Damper
    1.
    发明授权
    Bi-Directional Multiple State Suspension Damper 失效
    双向多状态悬挂阻尼器

    公开(公告)号:US06085877A

    公开(公告)日:2000-07-11

    申请号:US105334

    申请日:1998-06-26

    IPC分类号: F16F9/46 F16F9/34

    CPC分类号: F16F9/466

    摘要: A damper provides tunable variable rates in both extension and compression operation. A piston is carried in a cylinder tube separating out extension and compression chambers. The piston carries a first valving assembly that is tuned to provide a first damping level when fluid flows through the piston from the extension chamber to the compression chamber and a second valving assembly that is tuned to provide a second damping level when fluid flows through the piston from the compression chamber to the extension chamber. A control valve assembly is mounted to move with the piston. When the control valve assembly is closed, fluid flow between the compression and extension chamber flows substantially only through the first and second valving assemblies and when the control valve is open at least some fluid flows between the compression and extension chambers through a secondary valve assembly without passing through the first and second valving assemblies. The secondary valve assembly is mounted to move with the piston and includes a third valving assembly that is tuned to provide a third damping level, and includes a fourth valving assembly that is tuned to provide a fourth damping level. When the control valve is open, fluid flow from the extension chamber to the compression chamber passes through both the first valving assembly and the third valving assembly wherein performance of the damper is determined by the first and third valving assemblies in parallel, and fluid flow from the compression chamber to the extension chamber passes through both the second valving assembly and the fourth valving assembly wherein performance of the damper is determined by the second and fourth valving assemblies in parallel.

    摘要翻译: 阻尼器在扩展和压缩操作中提供可调变量。 活塞被承载在分离出延伸室和压缩室的气缸管中。 活塞承载第一阀门组件,其被调节以在流体从延伸室流过压缩室时流过活塞以提供第一阻尼水平;以及第二阀组件,其被调节以在流体流过活塞时提供第二阻尼水平 从压缩室到延伸室。 安装控制阀组件以与活塞一起移动。 当控制阀组件关闭时,压缩室和延伸室之间的流体流动基本上仅通过第一和第二阀组件,并且当控制阀打开时,至少一些流体在压缩室和延伸室之间通过次级阀组件流动,而没有 通过第一和第二阀组件。 辅助阀组件安装成与活塞一起移动并且包括调节以提供第三阻尼水平的第三阀组件,并且包括调节以提供第四阻尼水平的第四阀组件。 当控制阀打开时,从延伸室到压缩室的流体流动通过第一阀组件和第三阀组件,其中阻尼器的性能由第一和第三阀组件并联确定,并且流体从 到扩展室的压缩室通过第二阀组件和第四阀组件,其中阻尼器的性能由第二和第四阀组件并联确定。

    Suspension damper for motor vehicle
    2.
    发明授权
    Suspension damper for motor vehicle 有权
    机动车用悬挂阻尼器

    公开(公告)号:US6161662A

    公开(公告)日:2000-12-19

    申请号:US270559

    申请日:1999-03-16

    IPC分类号: F16F9/512 F16F9/50

    CPC分类号: F16F9/5123

    摘要: A monotube suspension damper including a cylinder tube having a fluid chamber and a gas chamber, a piston dividing the fluid chamber into a compression chamber and a rebound chamber, a primary fluid flow path across the piston including flow control valves which throttle fluid flow, a secondary fluid flow path across the piston parallel to the primary flow path including flow control valves which throttle fluid flow, and a tubular connecting rod on the cylinder tube connected to the piston. A valve spool is supported on the piston for linear translation between closed and open positions blocking and unblocking the secondary flow path. A control rod inside of the connecting rod is disposed between the valve spool and a flexible diaphragm exposed to pneumatic pressure in an expansible load leveling chamber between sprung and unsprung masses of the motor vehicle. As the pneumatic pressure in the expansible chamber varies, the control rod transfers flexure of the diaphragm to the valve spool to close the secondary flow path and increase the stiffness of the suspension damper as pneumatic pressure increases and to open the secondary flow path and decrease the stiffness of the suspension damper as pneumatic pressure decreases.

    摘要翻译: 一种单管悬挂阻尼器,包括具有流体室和气室的气缸筒,将流体室分成压缩室和反弹室的活塞,横跨活塞的主要流体流动路径,包括节流阀的流量控制阀, 平行于主流路的活塞的二次流体流动路径包括节流流体的流量控制阀以及连接到活塞的气缸管上的管状连接杆。 阀芯支撑在活塞上,用于在闭合和打开位置之间进行线性平移,阻止和解除二次流动路径。 连杆的内部的控制棒设置在阀芯和在机动车辆的悬挂质量和非悬挂质量之间的可膨胀负载调平室中暴露于气动压力的柔性隔膜之间。 随着可膨胀室中的气压变化,控制杆将隔膜的挠曲传递到阀芯,以闭合二次流动路径,并且随着气压增加并增加悬挂阻尼器的刚度并且打开二次流动路径并减小 悬挂阻尼器的刚度随气压的降低而减小。

    Passive magnetorheological clutch
    5.
    发明授权
    Passive magnetorheological clutch 失效
    被动磁流变离合器

    公开(公告)号:US5848678A

    公开(公告)日:1998-12-15

    申请号:US869299

    申请日:1997-06-04

    IPC分类号: F16D37/02 F16D37/00

    CPC分类号: F16D37/02 F16D2037/002

    摘要: A passive magnetorheological clutch includes an input member that is constantly driven at engine speed, or some selected proportion thereof. An output member is journaled on the input member so as to be supported thereon in a nonrotating state and to be concentrically rotatable in concert therewith. A space presented between the input and output members contains a quantity of magnetorheological fluid. The space also contains an engagement mechanism including a permanent magnet and a ferromagnetic ring concentrically positioned with an operative gap therebetween, wherein the operative gap's dimension is variable to effect changes in the magnetic field passing between the magnet and the ring. When an actuator effects a reduction in the distance between the magnet and ring, the amount of magnetic field increases in density adjacent the ring. The resultant torque transfer from the input member to the output member is effected across the operative gap and through the magnetorheological fluid. As the operative gap is reduced, the torque transfer increases in a gradual and progressive manner.

    摘要翻译: 被动磁流变离合器包括以发动机速度或其某些选定比例恒定驱动的输入构件。 输出构件被安装在输入构件上,以便在非旋转状态下被支撑在其上并与其一致地同心旋转。 在输入和输出构件之间呈现的空间包含一定量的磁流变流体。 该空间还包括接合机构,其包括永磁体和同心定位的铁磁环,其间具有可操作的间隙,其中操作间隙的尺寸是可变的,以实现磁体和环之间通过的磁场的变化。 当执行器实现磁体和环之间的距离的减小时,与环相邻的磁场的密度增加。 从输入构件到输出构件的合成扭矩传递跨越操作间隙并通过磁流变流体实现。 随着操作间隙的减小,转矩传递以逐渐和渐进的方式增加。

    Split rotor cooling fan clutch
    6.
    发明授权
    Split rotor cooling fan clutch 失效
    分体转子冷却风扇离合器

    公开(公告)号:US5896964A

    公开(公告)日:1999-04-27

    申请号:US867623

    申请日:1997-06-02

    IPC分类号: F16D37/02 F16D35/00

    摘要: A split rotor cooling fan clutch includes an input member that is constantly driven at engine speed, or at some selected proportion thereof. An output member is journaled on the input member so as to be supported thereon in a substantially nonrotating state when decoupled and alternately, to be concentrically rotatable in concert therewith at a variety of speeds. A space presented between the input and output members contains a quantity of magnetorheological fluid. An engagement mechanism includes the split rotor and coil, with a ferromagnetic element positioned to define an operative gap between the rotor and the ferromagnetic element. The coil is selectively energized with a given current to result in a torque transfer between the input and output elements that provides a rotational speed of the fan tailored to the cooling requirements of the associated engine. Internal heat generation is managed electronically to prevent overheating.

    摘要翻译: 分体式转子冷却风扇离合器包括以发动机速度或其某些选定比例恒定驱动的输入构件。 输出构件被记录在输入构件上,以在被解耦的情况下以基本上非旋转的状态支撑在其上,并且交替地以各种速度与其一致地同心地旋转。 在输入和输出构件之间呈现的空间包含一定量的磁流变流体。 接合机构包括分离转子和线圈,其中铁磁元件被定位成限定转子和铁磁元件之间的可操作的间隙。 线圈被选择性地以给定的电流通电以导致在输入和输出元件之间的转矩传递,其提供根据相关联的发动机的冷却要求定制的风扇的转速。 内部发热是以电子方式进行管理,以防止过热。

    Hydraulic power booster for a brake apply system
    9.
    发明授权
    Hydraulic power booster for a brake apply system 失效
    用于制动应用系统的液压助力器

    公开(公告)号:US5715680A

    公开(公告)日:1998-02-10

    申请号:US746819

    申请日:1996-11-18

    IPC分类号: B60T13/14 B60T13/20

    CPC分类号: B60T13/144

    摘要: A hydraulic power booster for a brake apply system includes a mechanically actuated hydraulic booster of compact design that can be integrated in line with a conventional type master cylinder. Additionally, a combination of twin mechanically actuated check valves is arranged to provide a structure with essentially no leakage when the hydraulic booster is at rest and when the hydraulic booster is at poise. A mechanically actuated check valve is normally held open and is positioned in a passageway between the power piston and a fluid reservoir. This check valve is substantially, immediately closed upon the application of force to the brake pedal. Another mechanically actuated check valve is provided in a passageway between the hydraulic power supply and the power piston. This check valve is mechanically opened to supply a selected amount of pressurized fluid to the power piston which generates a selected amount of vehicle braking in response to actuation of the brake pedal.

    摘要翻译: 用于制动施加系统的液压助力器包括机械致动的液压助力器,其紧凑设计可与常规型主缸一体化。 此外,双机械致动止回阀的组合被布置成当液压助力器静止时以及当液压助力器处于泊位时提供基本上没有泄漏的结构。 机械致动的止回阀通常保持打开并且定位在动力活塞和流体储存器之间的通道中。 该止回阀在向制动踏板施加力时基本上立即关闭。 另一个机械致动的止回阀设置在液压动力源和动力活塞之间的通道中。 该止回阀被机械地打开以将选定量的加压流体供应到动力活塞,其响应于制动踏板的致动而产生选定量的车辆制动。

    Pressure equalization in a proportionally regulated fluid system
    10.
    发明授权
    Pressure equalization in a proportionally regulated fluid system 失效
    按比例调节的流体系统中的压力均衡

    公开(公告)号:US5927827A

    公开(公告)日:1999-07-27

    申请号:US746818

    申请日:1996-11-18

    摘要: A braking system generally provides pressure equalization between the sides of a split braking circuit. The amount of equalization provided is limited to enable the introduction of purposely induced pressure variances. A result is that unintentional pressure variations are moderated and intentional target pressure variations are easily obtainable. The braking system provides power braking operation in response to a manually actuated master cylinder. Fluid pressure is transmitted through isolation valves directly to the wheel brakes. The braking system also provides power operation in response to a powered pump. The pump delivers pressurized fluid through a controllable supply valve. When the supply valve is open, the isolation valve(s) are shifted to provide open fluid communication path between proportional pressure control valves and the wheel brakes. The pressure equalization effecting device is isolated from the master cylinder pressurized circuit during base brake operation.

    摘要翻译: 制动系统通常在分离制动电路的侧面之间提供压力平衡。 所提供的均衡量是有限的,以便引入有意引起的压力差异。 结果是无意的压力变化是缓和的,并且容易获得有意的目标压力变化。 制动系统响应于手动致动的主缸来提供动力制动操作。 流体压力通过隔离阀直接传递到车轮制动器。 制动系统还提供响应于动力泵的动力操作。 泵通过可控供应阀提供加压流体。 当供应阀打开时,隔离阀被移动以在比例压力控制阀和车轮制动器之间提供开放的流体连通路径。 在基础制动操作期间,均压效应装置与主缸加压回路隔离。