Rotary hydraulic machine and controls
    11.
    发明授权
    Rotary hydraulic machine and controls 有权
    旋转液压机和控制器

    公开(公告)号:US09115770B2

    公开(公告)日:2015-08-25

    申请号:US13186122

    申请日:2011-07-19

    Inventor: George Kadlicko

    Abstract: A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve.

    Abstract translation: 可变容量液压机具有位于壳体内的旋转组和固定到壳体的控制壳体,以延伸跨过并密封壳体中的开口。 控制壳体容纳控制电路和一对传感器以感测与旋转组相关联的参数的变化。 传感器中的一个定位在旋转组上的筒附近以感测旋转速度,而另一个感测旋转斜盘的位移。 控制壳体容纳控制阀和蓄能器以将流体供应到控制阀。

    Hydraulic pump/motor and fan driving device
    12.
    发明授权
    Hydraulic pump/motor and fan driving device 有权
    液压泵/电机和风扇驱动装置

    公开(公告)号:US08677884B2

    公开(公告)日:2014-03-25

    申请号:US12735469

    申请日:2008-12-22

    Abstract: A hydraulic motor 10 of the invention includes a detected unit 52 formed on an outer circumferential surface of a cylinder block 14 and a rotation sensor 50arranged opposed to the detected unit 52 for detecting the detected unit 52. The rotation sensor 50 is provided on a position corresponding to a position between a deepest portion 41 of a cylinder hole 29 and a rear end face 28 of the cylinder block in an axial direction of the cylinder block. A fan driving device 60 is provided with the hydraulic motor 10, a bracket 61 to which the hydraulic motor is attached in a state in which a tip end of the rotational shaft 13 is arranged on a surface side thereof through a through-hole 64 and a fan 62 attached to the rotational shaft 13 and is driven by the hydraulic motor.

    Abstract translation: 本发明的液压马达10包括形成在气缸体14的外周面上的检测单元52和与检测单元52相对的旋转传感器50,用于检测检测单元52.旋转传感器50设置在位置 对应于缸体29的最深部分41与气缸体的轴向方向上的后端面28之间的位置。 风扇驱动装置60设置有液压马达10,在旋转轴13的前端通过通孔64配置在其表面侧的状态下安装有液压马达的托架61,以及 安装在旋转轴13上并由液压马达驱动的风扇62。

    Swashplate assembly
    13.
    发明申请
    Swashplate assembly 有权
    斜盘组合

    公开(公告)号:US20050172799A1

    公开(公告)日:2005-08-11

    申请号:US10776771

    申请日:2004-02-11

    Inventor: George Kadlicko

    Abstract: A rotary hydraulic machine has a swashplate adjustable by an actuator. The swashplate has a part cylindrical bearing surface supported by a complimentary bearing surface in the housing and a fluid bearing acts between the surfaces. The fluid is supplied to the fluid bearing by pressure compensated flow control valves to maintain a predetermined flow of fluid. The actuator includes a pair of single acting hydraulic motors secured in the housing and acting on the swashplate at spaced locations. The pistons of the hydraulic motors engage cylindrical pins located on the swashplate to permit a rolling motion between the swashplate and motors as the swashplate is adjusted.

    Abstract translation: 旋转液压机具有可由致动器调节的斜盘。 旋转斜盘具有由壳体中的互补轴承表面支撑的部分圆柱形支承表面,并且流体轴承作用在表面之间。 流体通过压力补偿流量控制阀提供给流体轴承,以保持流体的预定流量。 致动器包括固定在壳体中的一对单作用液压马达,并在间隔的位置作用在斜盘上。 液压马达的活塞接合位于旋转斜盘上的圆柱形销,以便在斜盘调节时允许斜盘和马达之间的滚动运动。

    Power transmission
    14.
    发明授权
    Power transmission 失效
    电力传输

    公开(公告)号:US5141402A

    公开(公告)日:1992-08-25

    申请号:US647609

    申请日:1991-01-29

    Abstract: An electric-motor hydraulic pump includes a housing having a stationary internal shaft. A pair of cylinder blocks are rotatably carried by the shaft within the housing, and an array of pistons are slidably disposed with each cylinder block. A yoke plate is mounted within the housing and engages the pistons for determining displacement of the pistons within the cylinder blocks. Fluid inlet and outlet ports are provided in the housing and are coupled to the cylinder blocks. An induction motor includes a rotor carried by the cylinder block for corotation therewith, and a stator mounted within the housing surrounding the rotor. An electronic controller for controlling outlet fluid pressure and flow from the pump includes a plurality of sensors mounted on the housing for sensing operating characteristics of the pump and motor to provide electronic sensor signals as functions thereof. Control electronics are responsive to the sensor signals for controlling fluid pressure and flow from the pump by varying effective displacement of the pump, and by varying the electrical power (current and frequency) applied to the motor.

    Abstract translation: 电动机液压泵包括具有固定内部轴的壳体。 一对气缸体由轴可旋转地支承在壳体内,并且活塞阵列可滑动地布置有每个气缸体。 轭板安装在壳体内并与活塞接合,以确定活塞在气缸体内的位移。 流体入口和出口设置在壳体中并且联接到气缸体。 感应电动机包括由气缸体承载的用于与其共旋转的转子和安装在围绕转子的壳体内的定子。 用于控制出口流体压力和来自泵的流量的电子控制器包括安装在壳体上的多个传感器,用于感测泵和马达的操作特性,以提供作为其功能的电子传感器信号。 控制电子设备响应于传感器信号,通过改变泵的有效位移以及通过改变施加到电动机的电功率(电流和频率)来控制流体压力和来自泵的流量。

    Device for controlling and/or measuring operational parameters of an
axial piston machine
    15.
    发明授权
    Device for controlling and/or measuring operational parameters of an axial piston machine 失效
    用于控制和/或测量轴向活塞机的操作参数的装置

    公开(公告)号:US4496289A

    公开(公告)日:1985-01-29

    申请号:US427265

    申请日:1982-09-29

    Abstract: Disclosed is a device for controlling or measuring operational parameters of an axial piston machine. The tilting plate which engages and adjusts the stroke of the piston is provided with two opposite pivot pins supported in fixed bearings. At least one pivot pin is provided with a shearing stress sensor preferably in the form of a magnetoelastic feeler which produces electrical signals the pulsation of which is indicative of rotational speed and the magnitude of the signal is proportional to pressure applied by the pistons and thus to the delivery of the machine. A second sensor is coupled to the tilting plate to indicate the angular displacement of the latter. The output signals from the sensors are separated into the pressure dependent signals, frequency dependent signals and angular displacement signals which upon multiplication are applied to a programmable data processing unit. The output of the unit is supplied to a solenoid operated proportional valve which controls pressure fluid for hydraulic setting motors which adjust the angular displacement of the tilting plate.

    Abstract translation: 公开了一种用于控制或测量轴向活塞机的操作参数的装置。 接合和调节活塞行程的倾斜板设置有两个支撑在固定轴承中的相对枢轴销。 至少一个枢轴销设置有剪切应力传感器,优选地以磁弹性触发器的形式产生电信号,其脉动表示转速,并且信号的大小与由活塞施加的压力成比例,因此 运送机器。 第二传感器联接到倾斜板以指示后者的角位移。 来自传感器的输出信号被分离为压力相关信号,频率相关信号和角位移信号,当乘法被施加到可编程数据处理单元时。 该单元的输出被提供给电磁比例阀,其控制用于调节倾斜板的角位移的液压设定电动机的压力流体。

    HYDRAULIC PUMP/MOTOR WITH ROTATION DETECTION MECHANISM

    公开(公告)号:US20170276055A1

    公开(公告)日:2017-09-28

    申请号:US15504137

    申请日:2014-08-22

    Applicant: Komatsu Ltd.

    Abstract: A hydraulic pump/motor includes a rotational shaft rotatably attached inside a casing, a cylinder block configured to rotate together with the rotational shaft, a plurality of pistons, a swash plate, a valve plate, and a rotation detection mechanism. The rotation detection mechanism includes a detection target section having three or more recesses formed on an outer peripheral surface of the cylinder block in a unique arrangement pattern with different arc lengths between the three continuous recesses with respect to one rotational direction of the rotational shaft and being formed so as not to include the unique arrangement pattern with respect to the other rotational direction of the rotational shaft, each of the three or more recesses having a cross section having a same semicircular shape perpendicular to a direction of the rotational shaft; and a rotation sensor arranged in the casing in a state of facing the detection target section.

    Control valve for a variable displacement pump
    17.
    发明授权
    Control valve for a variable displacement pump 失效
    变排量泵的控制阀

    公开(公告)号:US08647075B2

    公开(公告)日:2014-02-11

    申请号:US12406813

    申请日:2009-03-18

    Applicant: Navneet Gulati

    Inventor: Navneet Gulati

    Abstract: A fluid device includes a variable swashplate adapted for movement between a first position and a second position. A control piston is adapted to selectively move the variable swashplate between the first and second positions. A control valve is in fluid communication with the control piston. The control valve includes a sleeve defining a spool bore, at least one fluid inlet passage in fluid communication with a fluid source and at least one control passage in fluid communication with the control piston. The control fluid passage includes an opening at the spool bore. A spool is disposed in the spool bore of the sleeve. The spool includes a metering surface that selectively communicates fluid between the fluid inlet passage and the control fluid passage. The metering surface has a first end and a second end. The metering surface having a tapered surface disposed between the first and second ends.

    Abstract translation: 流体装置包括适于在第一位置和第二位置之间移动的可变斜盘。 控制活塞适于在第一和第二位置之间选择性地移动可变斜盘。 控制阀与控制活塞流体连通。 控制阀包括限定滑阀孔的套筒,与流体源流体连通的至少一个流体入口通道和与控制活塞流体连通的至少一个控制通道。 控制流体通道包括在阀芯孔处的开口。 阀芯设在套管的阀芯孔中。 阀芯包括选择性地在流体入口通道和控制流体通道之间连通流体的计量表面。 计量表面具有第一端和第二端。 计量表面具有设置在第一和第二端之间的锥形表面。

    ELECTRICITY-LIQUID HYBRID LIQUID-PRESSURE APPARATUS
    18.
    发明申请
    ELECTRICITY-LIQUID HYBRID LIQUID-PRESSURE APPARATUS 有权
    电液混合液压装置

    公开(公告)号:US20130177394A1

    公开(公告)日:2013-07-11

    申请号:US13816099

    申请日:2010-08-17

    Abstract: An electricity-oil hybrid motor 1 includes an oil-pressure motor 10 and an electric motor 30. The electricity-oil hybrid motor 1 includes a rotating shaft 11 and causes the rotating shaft 11 to rotate by supplied operating oil. The electric motor 30 includes a rotor 32 connected to the rotating shaft 11, a stator 33 provided around the rotor 32, and a housing 34 in which the rotor 32 and the stator 33 are accommodated. The rotor 32 and the housing 34 are provided so as to surround and cover a casing 17 of the oil-pressure motor 10. The housing 34 includes a rotating shaft accommodating space 51 in which the rotating shaft 11 is accommodated and a stator accommodating space 52 in which the stator is accommodated. A sealing member 39 configured to separate the accommodating spaces 51 and 52 is provided in the housing 34.

    Abstract translation: 电动油混合动力电动机1包括油压电动机10和电动机30.电动油混合动力电动机1包括旋转轴11,并且通过供给的工作油使旋转轴11旋转。 电动机30包括连接到旋转轴11的转子32,设置在转子32周围的定子33和容纳转子32和定子33的壳体34。 转子32和壳体34设置成围绕并覆盖油压马达10的壳体17.壳体34包括容纳旋转轴11的旋转轴容纳空间51和定子容纳空间52 其中定子被容纳。 在壳体34中设置有用于分离容纳空间51和52的密封构件39。

    Rotary hydraulic machine and controls
    19.
    发明申请
    Rotary hydraulic machine and controls 有权
    旋转液压机和控制器

    公开(公告)号:US20070028608A1

    公开(公告)日:2007-02-08

    申请号:US11502193

    申请日:2006-08-10

    Inventor: George Kadlicko

    Abstract: A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve.

    Abstract translation: 可变容量液压机具有位于壳体内的旋转组和固定到壳体的控制壳体,以延伸跨过并密封壳体中的开口。 控制壳体容纳控制电路和一对传感器以感测与旋转组相关联的参数的变化。 传感器中的一个定位在旋转组上的筒附近以感测旋转速度,而另一个感测旋转斜盘的位移。 控制壳体容纳控制阀和蓄能器以将流体供应到控制阀。

    Electronic control system for a variable displacement pump
    20.
    发明授权
    Electronic control system for a variable displacement pump 失效
    变排量泵的电子控制系统

    公开(公告)号:US4655689A

    公开(公告)日:1987-04-07

    申请号:US778208

    申请日:1985-09-20

    Abstract: An electronic control system for a variable displacement pump comprises apparatus for sensing the actual position of the displacement determinative element and the actual rotational speed of the pump cylinder block, and for producing representative signals which are combined to produce a signal indicative of actual output flow rate. The displacement determinative elements position and the cylinder rotational speed are sensed directly by sensors mounted within the housing of the pump. The speed sensor is disposed in close proximity to, and aligned with marks inscribed on, the outer surface of the rotatable cylinder block. The volumetric efficiency of the pump is also sensed by and used to determine the actual flow rate.

    Abstract translation: 用于可变排量泵的电子控制系统包括用于感测位移确定元件的实际位置和泵缸体的实际旋转速度的装置,并且用于产生代表性信号,其被组合以产生指示实际输出流量的信号 。 位移确定元件位置和气缸转速由安装在泵壳体内的传感器直接检测。 速度传感器设置在可旋转气缸体的外表面附近并与内接的标记对齐。 泵的体积效率也被感测并用于确定实际流量。

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