公开(公告)号：JP2007162690A

公开(公告)日：2007-06-28

申请号：JP2006333764

申请日：2006-12-11

Applicant: Linde Material Handling Gmbh & Co Kg ,  リンデ マテリアル ハンドリング ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトLinde Material Handling GmbH & Co. KG

Inventor： KRAFT WOLFGANG

IPC: F04B49/06

CPC classification number: E02F9/225 ,  E02F9/2235 ,  E02F9/2296 ,  F04B49/065 ,  F04B2201/12051 ,  F04B2205/05 ,  F15B11/165 ,  F15B2211/20546 ,  F15B2211/253 ,  F15B2211/6309 ,  F15B2211/6313

Abstract: PROBLEM TO BE SOLVED: To actualize improved reacting behavior of a consumer with simple constructing work.
SOLUTION: A pumping volume adjuster 6 for a pump 2 can be controlled by an electronic control device 7. The control device 7 is connected to a sensor device 9 for detecting the load pressure of the consumer and a sensor device 8 for detecting pumping pressure applied into a pumping duct 4 of the pump 2 for operating them. A circulation device 15 is arranged corresponding to the pumping duct 4 of the pump. The circulation device 15 controls connection between the pumping duct 4 of the pump 2 and a container 3.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：通过简单的构建工作来实现消费者改进的反应行为。 解决方案：用于泵2的泵送容积调节器6可以由电子控制装置7控制。控制装置7连接到用于检测消费者的负载压力的传感器装置9和用于检测的传感器装置8 将泵送压力施加到泵2的泵送管道4中以便操作它们。 循环装置15对应于泵的泵送管道4布置。 循环装置15控制泵2的泵送管道4与容器3之间的连接。版权所有：（C）2007，JPO＆INPIT

公开(公告)号：JPH11280659A

公开(公告)日：1999-10-15

申请号：JP3545099

申请日：1999-02-15

Applicant: Sauer Inc ,  ソアー インコーポレイテッド

Inventor： GERINGER KERRY G

IPC: F04B49/06 ,  E02F9/22 ,  F04B49/00 ,  F04B49/08 ,  F15B11/17

CPC classification number: 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

Abstract: PROBLEM TO BE SOLVED: To improve operational stability for objects equipped with a plurality of variable exhaust volume open circuit pumps which draw and compress liquid from a reservoir, by combining the plurality of open circuit pumps to create control functions similar to single pump control function, and by mutual linking.
SOLUTION: A combined and linked pump equipment 10 provided with two variable exhaust volume open circuit pumps 12, 14 each having an incline 28 which acts as exhaust volume variation mechanism, and angle of each incline 28 is controlled by servo operation devices 30, 31. Servo operation device 30, 31 are driven by pressurized liquid discharged through output pipes 20, 22 of the pumps 12, 14, respectively, and through a bias flow pipe 38. Also, load detection control devices 40F, 40R are connected to output pipes 20, 22, and in this way flow exhaust volume and output volume are adjusted to a control value necessary for maintaining constant pressure differences fore and aft of flow control valve 19 disposed in the common output pipe 24 of load 18.
COPYRIGHT: (C)1999,JPO

Abstract translation: 要解决的问题：为了提高装备有从容器抽取和压缩液体的多个可变排气容积开放泵的物体的操作稳定性，通过组合多个开路泵来产生类似于单个泵控制功能的控制功能， 并通过相互链接。 解决方案：具有两个可变排气容积开路泵12,14的组合连接的泵设备10，每个可变排气容积开放泵12,14具有作为排气容积变化机构的倾斜28，并且每个倾斜28的角度由伺服操作装置30,31控制。 伺服操作装置30,31由分别通过泵12,14的输出管20,22排出的加压液体驱动，并通过偏流管38进行驱动。另外，负载检测控制装置40F，40R与输出管20 22，并且以这种方式将排气量和输出量调节到为了保持设置在负载18的公共输出管24中的流量控制阀19的前后保持恒定压力差所必需的控制值。

公开(公告)号：KR1020110130466A

公开(公告)日：2011-12-05

申请号：KR1020117023855

申请日：2010-03-05

Applicant: 이턴 코포레이션

Inventor： 굴레티네브넷

IPC: F04B1/32 ,  F04B49/12 ,  F04B49/22

CPC classification number: F04B49/128 ,  F04B1/324 ,  F04B49/22 ,  F04B2201/0805 ,  F04B2201/12051 ,  Y10T137/86694 ,  Y10T137/8671

Abstract: 유체장치는 제1위치와 제2위치 간에 이동에 적합한 가변 경사판을 포함한다. 제어피스톤은 제1 및 제2위치들 간에 가변 경사판을 선택적으로 이동시키기에 적합하다. 제어밸브는 제어피스톤과 유체 연통한다. 제어밸브는 스풀 보어와, 유체원과 유체 연통하는 적어도 하나의 유체 흡입로와 그리고 제어피스톤과 유체 연통하는 적어도 하나의 제어통로를 포함한다. 제어유체 통로는 스풀 보어에서 개구를 포함한다. 스풀은 슬리브의 스풀 보어에 배치된다. 스풀은 유체 흡입로와 제어유체 통로 간에 유체를 선택적으로 연통시키는 계량 표면을 포함한다. 계량 표면은 제1단부와 제2단부를 가진다. 계량 표면은 제1 및 제2단부들 사이에 배치되는 테이퍼된 표면을 가진다.

公开(公告)号：US12078157B2

公开(公告)日：2024-09-03

申请号：US17562214

申请日：2021-12-27

Applicant: Hamilton Sundstrand Corporation

Inventor： Weishun Willaim Ni ,  Edward W. Goy ,  Benjamin T. Harder ,  Mark W. Shoemaker

IPC: F04B1/328 ,  F02C9/30 ,  F04B49/06 ,  F04B13/00

CPC classification number: F04B1/328 ,  F02C9/30 ,  F04B49/06 ,  F04B13/00 ,  F04B2201/12051 ,  F04B2205/02 ,  F04B2205/05

Abstract: A variable displacement piston pump, having: a housing, a pivot assembly to pivot between minimal and maximum pivot angles; a pump cover defining an actuator bore with an actuator piston, an actuator arm extending from the actuator piston to the pivot assembly; and an electronic control unit (ECU) coupled to the pump, the ECU having: a pump controller, a linear variable differential transducer (LVDT) coupled to the pump controller and the actuator piston, and an electrohydraulic solenoid valve (EHSV) coupled to the pump controller, the ECU is configured to: determine a pivot differential for the pivot assembly between a target pivot angle and a current pivot angle; determine a position differential for the actuator piston, corresponding to the pivot differential of the pivot assembly; control the EHSV to move the actuator piston by the position differential; and determine, from the LVDT, that the actuator piston moved by the position differential.

公开(公告)号：US11994123B2

公开(公告)日：2024-05-28

申请号：US17905974

申请日：2021-02-24

Applicant: PMP PRO-MEC S.P.A.

Inventor： Riccardo Pozzo ,  Luca De Carli

IPC: F04B49/00 ,  F04B1/295 ,  F04B1/324 ,  F04B49/06 ,  F04B53/10

CPC classification number: F04B49/002 ,  F04B1/295 ,  F04B1/324 ,  F04B49/065 ,  F04B53/1082 ,  F04B2201/12041 ,  F04B2201/12051

Abstract: Control system and control method of a variable displacement hydraulic pump wherein the system includes a detection sensor for detection of the actually set displacement and a control unit for current control of a couple of solenoids controlling displacement increase and decrease.

公开(公告)号：US09938966B2

公开(公告)日：2018-04-10

申请号：US14607126

申请日：2015-01-28

Applicant: Parker-Hannifin Corporation

Inventor： David Mark Heathcoat, Jr. ,  Jason Lee Emmette ,  Roger Paul Gray ,  Somer Renee Malone ,  Kirk Ayres Lola ,  Kerry Todd Brock ,  Eli Cutshall

IPC: F16D39/00 ,  F04B1/20 ,  F04B1/32 ,  F04B49/12 ,  F16D31/02 ,  F04B17/03 ,  F16H61/435

CPC classification number: F04B1/20 ,  F04B1/2085 ,  F04B1/324 ,  F04B17/03 ,  F04B49/12 ,  F04B2201/12051 ,  F16D31/02 ,  F16H61/435

Abstract: A zero turn mower vehicle 10 includes left and right hydrostatic transmissions 11a, 11b driving wheels 15a, 15b. The transmissions 11a, 11b each include a swashplate type axial piston hydraulic pump 17 having a swashplate 22. A system 12 and method controls each pump 17. A controller 31 receives input signals and provides output signals to electric motors 33a, 33b to control each swashplate 22. Operator interface input devices 30a, 30b provide inputs to controller 31. Angle sensors 35a, 35b provide additional inputs to controller 31. Displacement amplifiers 36a, 36b amplify displacement of each swashplate 22, and torque amplifiers 34a, 34b amplify torque of electric motors 33a, 33b.

公开(公告)号：US09010102B2

公开(公告)日：2015-04-21

申请号：US13510814

申请日：2010-11-01

Applicant: Jae Seok Bang ,  Woo Yong Jung ,  Won Sun Sohn

Inventor： Jae Seok Bang ,  Woo Yong Jung ,  Won Sun Sohn

IPC: F15B15/20 ,  F04B49/08 ,  E02F9/12 ,  E02F9/22

CPC classification number: F04B49/08 ,  E02F9/123 ,  E02F9/2235 ,  E02F9/2282 ,  E02F9/2292 ,  E02F9/2296 ,  F04B1/324 ,  F04B23/06 ,  F04B49/002 ,  F04B49/065 ,  F04B2201/12051 ,  F04B2205/05 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/251 ,  F15B2211/265 ,  F15B2211/6309 ,  F15B2211/6652 ,  F15B2211/6653 ,  F15B2211/7058 ,  F15B2211/7135

Abstract: The present invention relates to a device for controlling a hydraulic pump of construction machinery. The device has a first pump supplying working fluid through a swing control valve to a swing motor, and a second pump supplying working fluid through a work tool control valve to a work tool actuator, and includes: a first tilting angle control unit for controlling a discharge flow of the first pump by controlling a tilting angle of the first pump according to an input pump control signal; and a controller deducting a discharge pressure (P2) of the second pump from a discharge pressure (P1) of the first pump to calculate a pump difference pressure-(P1-P2), comparing the calculated pump difference pressure (P1-P2) to a reference difference pressure and, when the calculated pump difference pressure (P1-P2) is greater than the reference difference pressure, outputting the pump control signal to the first tilting angle control unit to make the discharge pressure (P1) of the first pump equal to or less than a first reference pressure that is less than or equal to a swing relief pressure.

Abstract translation: 本发明涉及一种用于控制工程机械的液压泵的装置。 该装置具有通过摆动控制阀向摆动马达供给工作流体的第一泵，以及通过工作工具控制阀向工作工具致动器供给工作流体的第二泵，包括：第一倾斜角度控制单元， 通过根据输入泵控制信号控制第一泵的倾斜角来排出第一泵的流量; 并且控制器从第一泵的排出压力（P1）中减去第二泵的排出压力（P2），以计算泵差压 - （P1-P2），将计算的泵差压力（P1-P2）与 参考差压，当计算出的泵差压力（P1-P2）大于基准差压时，将泵控制信号输出到第一倾斜角控制单元，使第一泵的排出压力（P1）相等 达到或小于小于或等于摆动释放压力的第一参考压力。

公开(公告)号：US07992484B2

公开(公告)日：2011-08-09

申请号：US11502193

申请日：2006-08-10

Applicant: George Kadlicko

Inventor： George Kadlicko

IPC: F01B3/02

CPC classification number: F16D31/02 ,  F04B1/324 ,  F04B49/002 ,  F04B49/08 ,  F04B2201/0805 ,  F04B2201/1201 ,  F04B2201/12051 ,  Y10S92/02

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。

公开(公告)号：US07860683B2

公开(公告)日：2010-12-28

申请号：US11922657

申请日：2006-12-12

Applicant: Thomas Kunze ,  Wilfried Eichner

Inventor： Thomas Kunze ,  Wilfried Eichner

IPC: G06F11/30

CPC classification number: F04B51/00 ,  F04B1/34 ,  F04B2201/0802 ,  F04B2201/12051 ,  F04B2205/05 ,  F04C2270/80

Abstract: The invention relates to a device (1) for state monitoring in hydrostatic displacement units (2), in particular in axial piston machines (3) operated as a pump or as a motor. The device (1) comprises an acquisition unit (4) with a multiplicity of sensors (5) which are attached to the hydrostatic displacement unit (2) and serve to acquire monitoring data (6) and operating data (7), and an evaluating unit (8) which has a device (9) for analysing the monitoring data in the frequency range and a device (10) for analysing the monitoring data in the time range. A diagnostic unit (11) with an output unit (13) is connected to the evaluating unit (8).

Abstract translation: 本发明涉及一种用于静液压位移单元（2）中状态监测的装置（1），特别是在作为泵或马达操作的轴向活塞机（3）中。 装置（1）包括具有多个传感器（5）的采集单元（4），所述多个传感器（5）附接到静液压位移单元（2）并且用于获取监视数据（6）和操作数据（7） 单元（8），其具有用于分析频率范围内的监视数据的设备（9）和用于在时间范围内分析监视数据的设备（10）。 具有输出单元（13）的诊断单元（11）连接到评估单元（8）。

公开(公告)号：US20050172621A1

公开(公告)日：2005-08-11

申请号：US10776768

申请日：2004-02-11

Applicant: George Kadlicko

Inventor： George Kadlicko

IPC: F04B1/32 ,  F04B49/00 ,  F04B49/08 ,  F16D31/02

CPC classification number: F16D31/02 ,  F04B1/324 ,  F04B49/002 ,  F04B49/08 ,  F04B2201/0805 ,  F04B2201/1201 ,  F04B2201/12051 ,  Y10S92/02

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。