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1.发明授权Means and method for varying margin pressure as a function of pump displacement in a pump with load sensing control 失效用于在具有负载感测控制的泵中改变作为泵位移的函数的裕度压力的方法和方法
公开(公告)号：US6033188A
公开(公告)日：2000-03-07
申请号：US32052
申请日：1998-02-27
CPC分类号： F04B49/08 , F04B2201/1203 , F04B2205/061 , F04B2205/09
摘要： A pump system includes a variable fluid displacement pump having a pressure line which is connected to a pressure load and connected to a load sensing control. A variable orifice is located downstream from the load sensing control. The variable orifice is fluidly connected to the load sensing control in a servo pressure conduit such that the margin pressure varies proportionally with respect to the fluid displacement Of the pump. The variable orifice can take many different forms, including a variable cross sectional area gap between the housing and an elongated servo piston longitudinally slidable therein. A longitudinal slot having uniformly increasing depth along the length of the servo piston gives the servo piston a cross sectional area which varies along its length. Thus, a variable orifice results.
摘要翻译： 泵系统包括可变流体排量泵，其具有连接到压力负载并连接到负载感测控制的压力线。 可变孔口位于负载感测控制器的下游。 可变孔口在伺服压力管道中流体地连接到负载感测控制器，使得边缘压力相对于泵的流体位移成比例地变化。 可变孔可以采取许多不同的形式，包括壳体与可在其中纵向滑动的细长伺服活塞之间的可变横截面积间隙。 沿着伺服活塞的长度具有均匀增加的深度的纵向槽给予伺服活塞沿其长度变化的横截面积。 因此，产生可变孔口。
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公开(公告)号：US5588805A
公开(公告)日：1996-12-31
申请号：US520083
申请日：1995-08-28
申请人： Kerry G. Geringer
发明人： Kerry G. Geringer
摘要： An attenuator for a variable displacement hydraulic unit having a servo connected to a swashplate includes an oscillator connected to the servo. The oscillator includes a pipe constituting an inertial portion connected to the servo and a hose defining a hydraulic spring portion connected the other end of the pipe. The pipe has a fixed length and diameter. The pipe and hose combine to attenuate vibration and output pressure in the hydraulic unit by introducing a phase change in the pressure fluctuations within the fluid. A linearized model assists in sizing the components and tuning the oscillator to the troublesome frequency of the hydraulic unit. A method for using the oscillator to attenuate periodic pressure fluctuations due to swashplate vibrations includes fluidly connecting the oscillator to the servo piston bore and introducing a phase change to the periodic component of the fluid pressure by routing the fluid through the oscillator then returning it to the servo piston bore.
摘要翻译： 具有伺服连接到斜盘的可变排量液压单元的衰减器包括连接到伺服机构的振荡器。 振荡器包括构成连接到伺服机构的惯性部分的管道和限定连接在管道另一端的液压弹簧部分的软管。 管子具有固定的长度和直径。 管道和软管通过引入流体内压力波动的相位变化来减弱液压单元的振动和输出压力。 线性化模型有助于将元件的尺寸调整和调谐振荡器到液压单元的麻烦的频率。 使用振荡器来衰减由于斜盘振动引起的周期性压力波动的方法包括将振荡器流体地连接到伺服活塞孔，并通过使流体通过振荡器引导相位变化到流体压力的周期分量，然后将其返回到 伺服活塞孔。
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3.发明授权Retained magnetic strip for mounting on a rotating member to provide a magnetic flux to be sensed 失效用于安装在旋转构件上的保持磁条以提供要感测的磁通量
公开(公告)号：US5325055A
公开(公告)日：1994-06-28
申请号：US805534
申请日：1991-12-11
申请人： Kerry G. Geringer
发明人： Kerry G. Geringer
CPC分类号： G01P3/487
摘要： The retained magnetic strip has an elongated strip of magnetic material formed into a nearly circular band with an attaching, retaining, and protective ring of substantially rigid and non-magnetic material which encloses the magnetic strip.
摘要翻译： 保留的磁条具有细长的磁性材料带，其形成为具有基本刚性和非磁性材料的附接，保持和保护环的几乎圆形带，其包围磁条。
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公开(公告)号：US4745746A
公开(公告)日：1988-05-24
申请号：US106919
申请日：1987-10-06
申请人： Kerry G. Geringer
发明人： Kerry G. Geringer
IPC分类号： F16D31/08 , F16H61/46 , F16H61/465 , F16H61/472 , F16D31/02
CPC分类号： F16H61/472 , F16D31/08 , F16H61/46 , F16H61/465
摘要： The present invention is directed to a power control for an automatic transmission which consists of two valves, the first of which is a characteristic valve providing a pressure differential linearly proportional to an input speed signal provided by a prime mover driven fixed displacement pump, and a second valve which is modulated by the pressure differential generated by the first valve and by a pressure feedback proportional to the torque transmitted by the transmission. The power control provides a series of linear control curves proportional to input speed and is useful as either an automotive type control or an anti-stall control, or a combination of both.
摘要翻译： 本发明涉及一种用于自动变速器的动力控制装置，其由两个阀组成，其中第一个阀是提供与由原动机驱动的固定排量泵提供的输入转速信号成直线比例的压差的特征阀， 第二阀由第一阀产生的压力差和由传动装置传递的扭矩成比例的压力反馈调制。 功率控制提供与输入速度成比例的一系列线性控制曲线，并且可用作汽车型控制或防失速控制，或两者的组合。
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公开(公告)号：US06413055B1
公开(公告)日：2002-07-02
申请号：US09776554
申请日：2001-02-02
IPC分类号： F04B126
CPC分类号： F04B1/2021 , F04B1/324 , F04B49/002
摘要： A swashplate assist mechanism for dynamically varying swashplate moments in a multiple piston hydraulic unit includes a valve means disposed in the swashplate and defining a variable orifice for metering fluid from at least one of the pistons; and means for generating a control error signal to the valve means so as to adjust the size of the variable orifice based upon the control error signal. When fluid is metered from a leading piston to a trailing piston near one or more of the pressure transition zones, or when fluid is metered from a trailing piston to a leading piston near the opposite transition zones, the swashplate moments can be reduced.
摘要翻译： 用于在多活塞液压单元中动态变化斜盘力矩的斜盘辅助机构包括设置在斜盘中并限定用于计量来自至少一个活塞的流体的可变孔的阀装置; 以及用于产生对阀装置的控制误差信号的装置，以便根据控制误差信号来调整可变孔口的尺寸。 当流体从一个或多个压力过渡区附近的领先的活塞计量到尾部活塞时，或者当流体从后续活塞计量到靠近相对过渡区域的前导活塞时，可以减小斜盘力矩。
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公开(公告)号：US6109030A
公开(公告)日：2000-08-29
申请号：US023737
申请日：1998-02-13
申请人： Kerry G. Geringer
发明人： Kerry G. Geringer
CPC分类号： F15B11/17 , E02F9/2292 , E02F9/2296 , F04B49/002 , F04B49/08 , F04B2201/12051 , F04B2205/05 , F04B2205/061 , F15B2211/20553 , F15B2211/20576 , F15B2211/255 , F15B2211/40515 , F15B2211/455 , F15B2211/6055 , F15B2211/75
摘要： A ganged pumping apparatus includes first and second variable displacement open circuit pumps, each having a load sensing control and a servo actuator together for changing the fluid displacement of each pump respectively. The load sensing controls being adjusted so that the setting of the control on the second pump is lower than the setting of the control on the first pump. The servo actuator of the first pump having over-center capability, allowing the first pump to operate with negative fluid displacement, and the servo actuator of the second pump having a stop to limit minimum displacement to non-negative or zero displacement. A single pressure compensating pilot valve disposed in the first pump provides the pressure compensation function of both pumps. A pilot signal line interconnects the pressure compensating pilot valve, the load sensing controls, and a load such that the flow output of the pumps is combinable into a single output and functions as a single large displacement pump. A method of ganging and phasing the pumps is also disclosed.
摘要翻译： 联动泵送装置包括第一和第二可变排量开路泵，每个具有负载感测控制和伺服致动器，用于分别改变每个泵的流体位移。 负载感测控制被调节，使得第二泵上的控制设置低于第一泵上的控制设置。 第一泵的伺服致动器具有超中心能力，允许第一泵以负流体移动运行，并且第二泵的伺服致动器具有停止以将最小位移限制为非负或零位移。 设置在第一泵中的单个压力补偿先导阀提供两个泵的压力补偿功能。 导频信号线将压力补偿先导阀，负载感测控制和负载相互连接，使得泵的流量输出可组合成单个输出并且用作单个大排量泵。 还公开了一种组合和定相泵的方法。
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公开(公告)号：US5603348A
公开(公告)日：1997-02-18
申请号：US432513
申请日：1995-05-01
申请人： Kerry G. Geringer
发明人： Kerry G. Geringer
CPC分类号： F16K17/0433 , Y10T137/7613 , Y10T137/7853
摘要： A valve includes a body member having spaced apart first and second fluid passages and a bore in communication with the passages. The bore includes a valve seat interposed at one end of the bore between the first and second fluid passages, a discharge chamber opposite the first fluid passage and between the valve seat and the second fluid passage, and a valve spring cavity/dampening chamber at the end of the bore distal from the seat. The valve has a poppet engaged and yieldingly urged into sealing engagement with the valve seat by a spring disposed in the valve spring cavity. The poppet has a seating portion at its forward end, a stem portion at its rearward end, and a raised central portion interposed therebetween. Part of the poppet is guidingly received by the spring cavity in a controlled clearance fit so as to allow fluid to exert dampening pressure on the spring and guide the poppet in an axial direction. Improved valve performance is benefits are also realized when the central portion includes a vent groove thereon.
摘要翻译： 阀包括具有间隔开的第一和第二流体通道的本体构件和与通道连通的孔。 孔包括置于第一和第二流体通道之间的孔的一端处的阀座，与第一流体通道相对的排放室以及阀座和第二流体通道之间的阀弹簧腔/阻尼室 孔远离座位的端部。 该阀具有一个提升阀，并通过设置在阀弹簧腔中的弹簧而与阀座密封接合。 提升阀在其前端具有座部，在其后端具有杆部，并且插入其间的升高的中心部。 提升阀的一部分以可控的间隙配合被弹簧腔引导地接收，以便允许流体在弹簧上施加阻尼压力并沿轴向引导提升阀。 当中心部分包括通气槽时，也可实现改进的阀门性能。
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公开(公告)号：US5335750A
公开(公告)日：1994-08-09
申请号：US897272
申请日：1992-06-11
CPC分类号： F16H61/42 , B60K17/10 , B62D49/0692 , F16H61/465 , F16H2312/20
摘要： A street sweeping vehicle has a chassis supported on travel wheel units. An engine and an operator control compartment are on the chassis. A single hydrostatic transmission is on the chassis and is operatively connected to the engine and travel wheel units. An accelerator pedal located in the compartment is connected to the engine to vary its operating speed. An electronic and hydraulic control system accessible in the control compartment are connected to the transmission to control it and coordinate the operation of the engine and travel wheel units. The control system has a travel mode responsive to engine speed and a work mode independent of engine speed with control components to coordinate the modes and to permit the dual or separate operation thereof. The transmission has a variable displacement hydraulic pump and at least one hydraulic motor, with the control system operatively connected to each. The control compartment has equivalently equipped laterally positioned operator command stations, making the vehicle selectively operable from either of the two stations. The control system includes a brake defeat valve, an antistall switch, a phase control for phasing pump and motor displacements to achieve higher speeds, a valve for compensating for system pressure, and a electromechanical FNR switch for preventing a change between the travel and work modes unless the pump is in neutral.
摘要翻译： 街道清扫车辆具有支撑在行车轮单元上的底盘。 发动机和操作员控制室位于机箱上。 单个静液压传动装置在底盘上并且可操作地连接到发动机和行车轮单元。 位于隔间中的加速器踏板连接到发动机以改变其操作速度。 在控制室中可接入的电子和液压控制系统连接到变速箱，以控制和协调发动机和行车轮单元的操作。 控制系统具有响应于发动机速度的行驶模式和与发动机速度无关的工作模式，其具有控制部件以协调模式并允许其双重或单独操作。 变速器具有可变排量液压泵和至少一个液压马达，其中控制系统可操作地连接到每个。 控制室具有等同地配备横向定位的操作员指挥站，使得车辆可选择性地从两个车站之一操作。 控制系统包括制动器失效阀，防静电开关，用于相位泵的相位控制和电机位移以实现更高速度，用于补偿系统压力的阀以及用于防止行驶和工作模式之间变化的机电FNR开关 除非泵处于中性位置。
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