公开(公告)号：US4599050A

公开(公告)日：1986-07-08

申请号：US698470

申请日：1985-02-05

Applicant: Naoki Ishizaki ,  Koichi Morita

Inventor： Naoki Ishizaki ,  Koichi Morita

IPC: F04D15/00 ,  F04B1/32 ,  F04B49/00 ,  F04B49/08

CPC classification number: F04B49/002 ,  F04B1/324 ,  F04B49/08 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: Disclosed herein is a device for controlling displacement of a variable displacement hydraulic pump comprising a displacement control system for receiving a discharge pressure of the variable displacement hydraulic pump and a discharge pressure of a fixed displacement hydraulic pump to control the displacement of the variable displacement hydraulic pump. The displacement control system comprises a servopiston including a helical compression spring for maintaining the variable displacement hydraulic pump at a maximum swash angle in a neutral position of associated operating valve, a servovalve including a spool for selectively controlling communication of hydraulic pressure between a control pump and a pair of fluid chambers defined in the servopiston, a control piston connected through a control lever pivotably supported by a pivot pin to the spool and the servopiston, at least two helical compression springs for biasing the control piston and controlling torque and flow so as to approximate same to a constant torque curve, a floating spring seat interposed between the helical compression springs, and a guide rod for guiding the floating spring seat and accommodated in a bore formed in the housing at a base portion thereof to define a pressure chamber pressurized by a biasing spring, the pressure chamber being communicated through a conduit to a discharge passage of the fixed displacement hydraulic pump.

Abstract translation: 本文公开了一种用于控制可变排量液压泵的排量的装置，包括用于接收可变排量液压泵的排出压力的位移控制系统和固定排量液压泵的排出压力，以控制可变排量液压泵的排量 。 位移控制系统包括一个伺服机构，包括螺旋压缩弹簧，用于将可变排量液压泵保持在相关联的操作阀的中立位置处的最大斜角;伺服阀包括用于选择性地控制控制泵和 限定在伺服电机中的一对流体室，通过可枢转地由枢轴销支撑到阀芯和伺服阀的控制杆连接的控制活塞，至少两个螺旋压缩弹簧，用于偏压控制活塞并控制扭矩和流量，以便 大致与恒定扭矩曲线相同，插入在螺旋压缩弹簧之间的浮动弹簧座，以及用于引导浮动弹簧座并且容纳在其基部的形成在壳体中的孔中的导杆，以限定由 偏置弹簧，压力室通过公共部件连通 定位到固定排量液压泵的排放通道。

公开(公告)号：US3942375A

公开(公告)日：1976-03-09

申请号：US514138

申请日：1974-10-11

Applicant: J. D. Shepherd

Inventor： J. D. Shepherd

IPC: F04B51/00 ,  F04D15/00 ,  G01L3/20 ,  G01M13/00 ,  G01M19/00

CPC classification number: G01M13/00 ,  F04B51/00 ,  F04D15/0088 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/11

Abstract: The testing method and means of the present invention utilizes a conventional dynamometer for testing a hydraulic pump. The dynamometer is used to mechanically drive the pump and the hydraulic system of the dynamometer is used to supply the test pump with hydraulic fluid. A flow rater is connected to the tested pump for registering the pressure, flow rate, and temperature of the fluid being pumped by the test pump.

Abstract translation: 本发明的测试方法和方法利用传统的测力计来测试液压泵。 测力计用于机械驱动泵，测功机的液压系统用于向试验泵供应液压油。 流量计连接到被测试的泵，用于记录由测试泵泵送的流体的压力，流量和温度。

公开(公告)号：TW200942695A

公开(公告)日：2009-10-16

申请号：TW098106419

申请日：2009-02-27

Applicant: 卡丹特股份有限公司

Inventor： 卡斯田森 彼特T

IPC: F03B ,  G06F

CPC classification number: F04B17/03 ,  F04B49/065 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0201 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/13

Abstract: 一種用於監視及控制一液壓泵情形之方法及系統。較特別地，本發明是關於一種用於監視及控制一液壓致動程式之方法及裝置，間接地藉監視及控制驅動一正排量液壓泵之電動機。本發明也是關於一種精確液壓能量傳遞系統。該泵至一主發動機(馬達)與相關馬達控制之直接耦接允許不需使用任何下流裝置的一液壓驅動機器之完全運動控制。藉在馬達控制中使用運動控制演算法，泵頭上的液壓輸出以一前饋方法被控制。

Abstract in simplified Chinese: 一种用于监视及控制一液压泵情形之方法及系统。较特别地，本发明是关于一种用于监视及控制一液压致动进程之方法及设备，间接地藉监视及控制驱动一正排量液压泵之电动机。本发明也是关于一种精确液压能量传递系统。该泵至一主发动机(马达)与相关马达控制之直接耦接允许不需使用任何下流设备的一液压驱动机器之完全运动控制。藉在马达控制中使用运动控制算法，泵头上的液压输出以一前馈方法被控制。

公开(公告)号：JP5106705B2

公开(公告)日：2012-12-26

申请号：JP2012515938

申请日：2011-05-20

Applicant: 株式会社小松製作所

Inventor： 光彦 竈門 ,  広治 大東 ,  浩一 宮武 ,  彰紀 杉浦

IPC: F04B49/00

CPC classification number: F04B49/002 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2292 ,  E02F9/264 ,  F04B49/065 ,  F04B2201/1202 ,  F04B2203/0207 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/26

公开(公告)号：JP4804137B2

公开(公告)日：2011-11-02

申请号：JP2005356816

申请日：2005-12-09

Applicant: 株式会社小松製作所

Inventor： 伸生 松山

IPC: F15B11/00 ,  E02F9/22 ,  F02D29/00 ,  F02D29/04 ,  F04B49/00 ,  F16H61/465 ,  F16H61/468

CPC classification number: E02F9/2246 ,  B60W10/06 ,  B60W10/30 ,  B60W30/1882 ,  B60W2510/0638 ,  B60W2510/1025 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/04 ,  F04B17/03 ,  F04B23/04 ,  F04B49/06 ,  F04B2201/1202 ,  F04B2203/0604 ,  F04B2203/0605 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/265 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6346 ,  F16H61/465 ,  F16H61/468 ,  Y10T477/636

公开(公告)号：JP4682904B2

公开(公告)日：2011-05-11

申请号：JP2006107162

申请日：2006-04-10

Applicant: 株式会社デンソー

Inventor： 茂貴 大矢

IPC: F04B49/06 ,  B60H1/32 ,  F24F11/02

CPC classification number: F04B51/00 ,  B60H1/3216 ,  B60H2001/3238 ,  B60H2001/325 ,  F04B2201/1202 ,  F04B2205/01 ,  F04B2205/05

Abstract: A compressor driving torque estimating apparatus estimates driving torque of a compressor. The apparatus includes a discharge-side detecting device, an inlet-side detecting device, first and second calculating devices, and an estimated driving torque determining device. The discharge-side detecting device detects discharge-side quantity about fluid discharged from the compressor. The inlet-side detecting device detects inlet-side quantity about fluid drawn into the compressor. The first calculating device calculates first estimated driving torque based on the discharge- and inlet-side quantity. The second calculating device calculates second estimated driving torque based on the discharge-side quantity. The estimated driving torque determining device chooses a smaller value between the first and second estimated driving torque as the driving torque. A compressor driving source control apparatus includes the apparatus. The control apparatus controls an output of a driving source, which provides driving force for the compressor, based on the driving torque.

公开(公告)号：JP2006329050A

公开(公告)日：2006-12-07

申请号：JP2005153188

申请日：2005-05-25

Applicant: Calsonic Kansei Corp ,  カルソニックカンセイ株式会社

Inventor： TAKAHASHI EIJI ,  KAWACHI MASAKI ,  OGAWA MASANORI ,  SEKIZUKA MORIO

IPC: F04B49/00 ,  B60H1/32

CPC classification number: F04B27/1804 ,  B60H1/3216 ,  B60H1/3219 ,  B60H2001/3238 ,  B60H2001/3263 ,  B60H2001/327 ,  B60H2001/3275 ,  F04B49/065 ,  F04B2027/1827 ,  F04B2027/1854 ,  F04B2027/1859 ,  F04B2201/1202

Abstract: PROBLEM TO BE SOLVED: To estimate starting torque, even when restarted just after OFF of operation. SOLUTION: When an A/C clutch is changed to OFF from ON, a position of a control valve 13 is controlled by an external control signal for setting a piston to become a full stroke position, and OFF time up to changing the A/C clutch to ON in the next place is counted. Discrimination is made on whether or not this OFF time is less than 6 seconds until the piston returns to an intermediate stroke position when pressure in a variable displacement compressor returns to an initial state. When the OFF time is less than 6 seconds, adopting starting torque is determined by the starting torque based on information on the outside air temperature and high pressure side pressure of a refrigerating cycle, the starting torque in the full stroke position of the piston and the starting torque in an initial position of the piston. The starting torque is calculated on the basis of the information on delivery capacity in an intermediate stroke of the piston and the high pressure side pressure of the refrigerating cycle. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：即使在关闭操作后重新启动，也可以估计起动转矩。 解决方案：当A / C离合器从ON变为OFF时，控制阀13的位置由外部控制信号控制，用于将活塞设定为全行程位置，OFF时间改变为 计数A / C离合器到ON位置。 当可变排量压缩机中​​的压力恢复到初始状态时，判断该OFF时间是否小于6秒，直到活塞返回到中间行程位置。 当OFF时间小于6秒时，采用起动转矩由起动转矩决定，其基于关于制冷循环的外部空气温度和高压侧压力的信息，活塞的全行程位置的起动转矩和 在活塞的初始位置启动扭矩。 基于活塞的中间冲程和制冷循环的高压侧压力的输送能力的信息来计算起动转矩。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2004092647A

公开(公告)日：2004-03-25

申请号：JP2003306312

申请日：2003-08-29

Applicant: Kadant Inc ,  カダント インコーポレイテッド

Inventor： CARSTENSEN PETER T

IPC: F04B11/00 ,  F04B49/06 ,  F04B49/10 ,  F04B49/20 ,  G05D16/20

CPC classification number: F04B49/20 ,  F04B11/00 ,  F04B49/065 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0204 ,  F04B2203/0207

Abstract: PROBLEM TO BE SOLVED: To electronically attenuate essential variation factors of pump torque for generating motor torque output to maintain output pressure from a pump constant.
SOLUTION: Disclosure is made of a precision hydraulic energy delivery system that directly couples the pump to a primary power source (motor) and a related motor control. The system provides flow control of a hydraulically driven machine without the use of downstream devices by employing motion control algorithms in the motor control. Hydraulic pressure output in pump head simultaneously follows by employing motion control algorithms in the motor control. Control features are integrated into the system by using control algorithms and subroutines specifically developed for the control system coupled to the pump.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003503640A

公开(公告)日：2003-01-28

申请号：JP2001507933

申请日：2000-06-26

Applicant: オフイシーヌ マリオ ドリン ソチエタ ペル アチオーニ

Inventor： ダミ，モーリジオ ,  ドリン，フイリッポ

IPC: F04B25/00 ,  F04B27/00 ,  F04B39/00

CPC classification number: F04B25/005 ,  F04B27/005 ,  F04B39/0094 ,  F04B2201/1202

Abstract: (57)【要約】 連続動作する二つのシリンダー及びピストンシステム（１、３）が、最小またはゼロの位相差で、クランクシャフトにより運転される。

公开(公告)号：EP3242029B1

公开(公告)日：2018-10-17

申请号：EP17174345.3

申请日：2015-11-26

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： OHIRA, Takeo ,  MIKI, Takeshi ,  CALDWELL, Niall ,  DUMNOV, Daniil

IPC: F04B49/06 ,  F04B51/00

CPC classification number: F04B49/06 ,  F04B51/00 ,  F04B2201/1202 ,  F04B2205/05 ,  F04B2205/09 ,  Y02E10/72

Abstract: A method is for diagnosing a hydraulic machine including a rotation shaft, a high-pressure line, a low-pressure line, cylinders, pistons guided by the respective cylinders, a cam configured to reciprocate the pistons in conjunction with rotation of the rotation shaft, high-pressure valves provided for respective working chambers formed by the cylinders and the pistons, for switching a communication state between the high-pressure line and the respective working chambers, and low-pressure valves provided for the respective working chambers, for switching a communication state between the low-pressure line and the respective working chambers. The method includes a step of detecting a failure of the hydraulic machine, the failure including at least one of sticking of the high-pressure valves in an open state, sticking of the low-pressure valves in a closed state, or sticking of the pistons, on the basis of at least one of a standard deviation of a torque of the rotation shaft in a no-load state of the hydraulic machine, or a fluctuation component of a specific frequency from among a torque fluctuation of the rotation shaft, a pressure fluctuation in the high-pressure line, and an output fluctuation of the hydraulic machine, the specific frequency being determined by a rotation speed É of the rotation shaft and a cam-lobe number m of the cam.