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公开(公告)号：US06390783B1
公开(公告)日：2002-05-21
申请号：US09625104
申请日：2000-07-25
IPC分类号： F04B1924
CPC分类号： F04C15/062 , B62D5/062
摘要： The fluid reservoir of a hydraulic system is fitted with a nozzle having a constricted primary discharge opening for directing an accelerated jet stream of hydraulic fluid returned to the reservoir from a pump back to an inlet of the pump. The jet stream aspirates additional fluid from the reservoir to boost the supply to the pump to minimize cavitation for quiet operation. The nozzle includes at least one bleed hole located upstream of the primary discharge opening through which a fraction of the fluid stream escapes into the reservoir and is permitted to dwell for a time sufficient to allow natural separation of entrained gas from the fractional stream before being drawn into the reservoir outlet by the jet stream.
摘要翻译： 液压系统的流体储存器装配有具有缩小的初级排放口的喷嘴，用于将从泵的泵返回到泵的入口的液压流体的加速喷射流引导到储存器。 喷射流从储存器吸出额外的流体，以增加泵的供给，以最小化静音操作的空化。 喷嘴包括位于初级排放口上游的至少一个排放孔，通过该排放口，一部分流体流通过该泄放孔排出到储存器中并允许其停留足够的时间，以允许夹带的气体在抽出之前从分数流中自然分离。 通过喷射流进入储存器出口。
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公开(公告)号：US06481990B2
公开(公告)日：2002-11-19
申请号：US09814677
申请日：2001-03-21
IPC分类号： F03C400
CPC分类号： F01C21/0863 , F04C2/3446
摘要： A multi-vane hydraulic motor for accessory drive in which the vanes of a hydraulically balanced rotor are primarily urged into operative engagement with a surrounding cam by forces of the hydraulic fluid in undervane passage produced by an associated hydraulic pump to eliminate requirement for biasing springs and spring attachment of prior art motor. A high pressure chamber provided between the motor housing and a pressure plate mounted therein is hydraulically connected to the vane chambers of the rotor of the motor for the hydraulic drive thereof. An end cap closing the motor housing has the hydraulic input and output lines operatively connected thereto.
摘要翻译： 一种用于附件驱动的多叶片液压马达，其中液压平衡转子的叶片主要通过由相关液压泵产生的副叶下通道中的液压流体的力与周围的凸轮操作地接合，以消除偏压弹簧的要求， 现有技术电机的弹簧附件。 设置在电动机壳体和安装在其中的压力板之间的高压室液压地连接到电动机的转子的叶片室，用于其液压驱动。 关闭马达壳体的端盖具有可操作地连接到其上的液压输入和输出线。
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公开(公告)号：US06422845B1
公开(公告)日：2002-07-23
申请号：US09728348
申请日：2000-12-01
IPC分类号： F03C200
CPC分类号： F01C21/0863
摘要： The pump has a multi-vane rotor operating within a cam ring to pump oil to a component such as a power steering gear. The pump rotor sandwiched between stationary thrust and pressure plates is supplied with oil from a surrounding fluid chamber through aligned intake ports in the two plates. Fluid chambers formed between the reciprocating vanes of the rotor discharges oil into axially aligned discharge ports of the thrust and pressure plates. The discharge port of the thrust plate is hydraulically connected to the discharge port of the pressure plate . Pressure oil in the discharge port of the pressure plate feeds into a system pressure chamber outboard of the pressure plate. Oil in the system pressure chamber is fed back to a first side chamber of the rotor through at least one simple flow passage in the pressure plate. The first side chamber is formed between inner and outer lands on the rotor. A second side chamber is similarly formed on the opposite side of the rotor and is hydraulically interconnected to the first side chamber by the undervane passages. With the pump rotating, the undervane chambers are pressurized by the supply of pressure oil to the side chambers through the straight through passage in the pressure plate to assure engagement of the vanes with the operative surface of the cam ring.
摘要翻译： 泵具有操作在凸轮环内的多叶片转子，以将油泵送到诸如动力转向装置的部件。 夹在固定推力板和压力板之间的泵转子通过两个板中的对准的进气口从周围的流体室供应油。 形成在转子的往复叶片之间的流体室将油排放到推力和压力板的轴向对齐的排出口中。 止推板的排出口与压力板的排出口液压连接。 压力板排出口的压力油进入压力板外侧的系统压力室。 系统压力室中的油通过压板中的至少一个简单的流动通道反馈到转子的第一侧室。 第一侧室形成在转子的内部和外部区域之间。 第二侧室类似地形成在转子的相对侧上，并且通过底盘通道液压地连接到第一侧室。 随着泵旋转，通过压力油通过压板中的直通通道向侧室供应压力油来加压底座室，以确保叶片与凸轮环的操作表面接合。
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公开(公告)号：US06481992B2
公开(公告)日：2002-11-19
申请号：US09781539
申请日：2001-02-08
IPC分类号： F04C2344
CPC分类号： F04C15/0023 , F01C21/10 , F04C2/3446
摘要： A vane pump includes a cylindrical rotor rotatable inside of an oval-shaped rotor chamber defined by a cam ring around the rotor. A thrust plate and a pressure plate on opposite sides of the cam ring cover the rotor chamber and are squeezed together by a pressure force attributable to fluid in a discharge chamber of the vane pump at a discharge pressure thereof. A first thrust face of the thrust plate is pressed against an end wall of a cavity of a pump housing in which the components are installed. Fluid at the discharge pressure is ported to one or more balance chambers between the thrust plate and the end wall of the housing. The balance chambers are defined by a gasket received in a groove of the first thrust face. Fluid at the discharge pressure within the balance chamber balances a fraction of the pressure force on the thrust plate on an opposite second thrust face thereof attributable to fluid discharged from a rotor chamber in which the rotor operates, in order to place the thrust plate in axial static equilibrium.
摘要翻译： 叶片泵包括可旋转在由转子周围的凸轮环限定的椭圆形转子室内部的圆柱形转子。 在凸轮环的相对侧上的止推板和压板覆盖转子室，并且通过在叶片泵的排出室中的流体的压力作用在其排出压力下挤压在一起。 止推板的第一推力面被压靠在其中安装部件的泵壳体的腔的端壁上。 排出压力下的流体移动到推力板和壳体端壁之间的一个或多个平衡室。 平衡室由容纳在第一推力面的凹槽中的垫圈限定。 在平衡室内的排出压力下的流体平衡推力板上的相对的第二推力面上的压力的一部分，其归因于从转子操作的转子室排出的流体，以便将止推板置于轴向 静态平衡。
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公开(公告)号：US6050796A
公开(公告)日：2000-04-18
申请号：US80496
申请日：1998-05-18
CPC分类号： F04C15/0023 , F04C2/3446
摘要： A vane pump including a cylindrical rotor rotatable inside of an oval-shaped rotor chamber defined by a cam ring around the rotor. A thrust plate and a pressure plate on opposite sides of the cam ring cover the rotor chamber and are squeezed together by a pressure force attributable to fluid in a discharge chamber of the vane pump at a discharge pressure thereof. Fluid at the discharge pressure of the pump is ported to an annular first longitudinal balance chamber between the pressure plate and an end of the rotor facing the pressure plate and to an annular second longitudinal balance chamber between the thrust plate and an opposite end of the rotor facing the thrust plate. A pressure force on the pressure plate attributable to fluid in the first balance chamber balances a fraction of the pressure force on the pressure plate attributable to fluid in the discharge chamber to reduce flexure of the pressure plate into the rotor chamber. A pressure force on the rotor attributable to fluid in the second balance chamber is equal to the pressure force on the rotor attributable to fluid in the first balance chamber for longitudinal static equilibrium.
摘要翻译： 一种叶片泵，其包括圆筒形转子，其可旋转在由转子周围的凸轮环限定的椭圆形转子室内部。 在凸轮环的相对侧上的止推板和压板覆盖转子室，并且通过在叶片泵的排出室中的流体的压力作用在其排出压力下挤压在一起。 在泵的排出压力下的流体被移动到压力板和面向压力板的转子的端部之间的环形第一纵向平衡室，并且在止推板和转子的相对端之间的环形第二纵向平衡室 面向推力板。 由于归属于第一平衡室中的流体的压板上的压力力平衡压力板上由于排放室中的流体引起的压力的一部分，以减小压板进入转子室的弯曲。 归因于第二平衡室中的流体的转子上的压力等于由第一平衡室中的流体引起的用于纵向静态平衡的转子上的压力。
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公开(公告)号：US5802848A
公开(公告)日：1998-09-08
申请号：US919517
申请日：1997-08-28
申请人： Kevin Mark McClendon , James Leroy Davison , Robert Edward Beyerlein , Tom Cheuk-In Wong , Allan Lee Dickinson , Albert Cheuk-Yin Wong , Carl David Tarum , James Michael Shea , David Fredrick Hammerbacher
发明人： Kevin Mark McClendon , James Leroy Davison , Robert Edward Beyerlein , Tom Cheuk-In Wong , Allan Lee Dickinson , Albert Cheuk-Yin Wong , Carl David Tarum , James Michael Shea , David Fredrick Hammerbacher
CPC分类号： F04C15/062 , B62D5/062 , B62D5/07 , F01P7/044
摘要： A motor vehicle hydraulic system including a power steering pump, a reservoir, a steering assist fluid motor, and a second fluid motor for a radiator cooling fan. A flow control valve remote from the power steering pump divides the total fluid flow from the power steering pump into a high flow branch and a low flow branch. Fluid circulates in the low flow branch at a substantially constant flow rate for a proportional control valve for the steering assist fluid motor and returns to the reservoir through an unrestricted tubular boss on the reservoir. Fluid in the high flow branch issues as a jet stream from a nozzle on the reservoir into a venturi passage submerged in fluid in the reservoir. The venturi passage is connected to an inlet port of the power steering pump. The jet stream aspirates fluid from the reservoir into the venturi passage. The kinetic energy of the jet stream is converted into superatmospheric pressure at the inlet port of the power steering pump to suppress cavitation. Fluid from the low flow branch dwells in the reservoir for a time duration adequate for natural release therefrom of any entrained gas bubbles.
摘要翻译： 一种机动车辆液压系统，包括动力转向泵，储存器，转向辅助流体马达和用于散热器冷却风扇的第二流体马达。 远离动力转向泵的流量控制阀将来自动力转向泵的总流体流分成高流量分支和低流量分支。 流体在低流量分支中以基本恒定的流速循环用于用于转向辅助流体马达的比例控制阀，并通过储存器上的无限制的管状凸起返回到储存器。 高流量分支中的流体作为从储存器上的喷嘴流入储存器中的流体中的文丘里通道的喷流。 文丘里通道连接到动力转向泵的入口。 喷射流将液体从储存器吸入文丘里通道。 喷射流的动能在动力转向泵的入口处被转换成超大气压以抑制空化。 来自低流量分支的流体在储存器中停留一段时间，足以从其中释放任何夹带的气泡。
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公开(公告)号：US07086845B2
公开(公告)日：2006-08-08
申请号：US10349945
申请日：2003-01-23
IPC分类号： F04C2/344
CPC分类号： F01C21/08 , F01C19/005 , F04C2/3446 , F04C2230/602 , F04C2230/91
摘要： A vane pump includes a cylindrical rotor rotatable inside of an oval-shaped rotor chamber of cam ring disposed between a pressed plate and a pressure plate. The rotor has opposite sides and a peripheral outer surface in which radial vane slots are formed and guide slideable vanes. The rotor is coated on its surfaces with a film of abradable coating material which reduces the operating clearance between the rotor and the thrust and pressure plates and cam ring so as to increase the volumetric efficiency of the pump.
摘要翻译： 叶片泵包括可旋转地设置在压板和压板之间的凸轮环的椭圆形转子室内部的圆柱形转子。 转子具有相对的侧面和周边的外表面，其中形成径向叶片槽和引导滑动叶片。 转子在其表面上涂覆有可磨损的涂层材料的膜，其减小了转子与推力和压力板和凸轮环之间的操作间隙，以增加泵的体积效率。
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公开(公告)号：US20120125723A1
公开(公告)日：2012-05-24
申请号：US12952795
申请日：2010-11-23
申请人： Albert C. Wong , Tom Cheuk-In Wong
发明人： Albert C. Wong , Tom Cheuk-In Wong
IPC分类号： F16D55/226 , F16D65/20
CPC分类号： F16D65/54 , F16D65/18 , F16D2121/04
摘要： A disk brake assembly having a rotor and a caliper is provided. The caliper has first and second body portions and an intermediate portion coupled between the body portions. The first body portion has a first brake pad coupled thereto. The second body portion has a bore extending therein that defines an inner surface. The assembly further includes a piston disposed within the bore. The piston has an end portion and a tubular body coupled to the end portion. The end portion has a second brake pad coupled thereto. The assembly further includes a positioning sleeve member disposed on a portion of the inner surface within a portion of the groove. The assembly further includes a spring disposed in the groove that moves the piston and the second brake pad away from the rotor in response to a decreased fluid pressure in the piston.
摘要翻译： 提供具有转子和卡钳的盘式制动器组件。 卡钳具有第一和第二主体部分和联接在主体部分之间的中间部分。 第一主体部分具有联接到其上的第一制动衬块。 第二主体部分具有限定内表面的孔。 组件还包括设置在孔内的活塞。 活塞具有连接到端部的端部和管状体。 端部具有与其连接的第二制动衬块。 组件还包括定位套筒构件，其设置在凹槽的一部分内的内表面的一部分上。 组件还包括设置在凹槽中的弹簧，其响应于活塞中减小的流体压力而使活塞和第二制动器片离开转子。
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