公开(公告)号：US20020176784A1

公开(公告)日：2002-11-28

申请号：US09858738

申请日：2001-05-16

Inventor： Hongliu Du

IPC: F04B049/00 ,  F04B001/00 ,  F04B001/26

CPC classification number: F04B49/065 ,  F04B1/324 ,  F04B2201/1203 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0208 ,  F04B2203/0604 ,  F04B2205/05

Abstract: A method and apparatus for controlling a variable displacement hydraulic pump having a swashplate pivotally attached to the pump. The method and apparatus includes determining a desired swashplate angle as a function of a power limit of the pump, determining an actual swashplate angle, determining a value of discharge pressure of the pump, moving a servo valve spool to a desired position as a function of the desired swashplate angle, the actual swashplate angle and the discharge pressure, and responsively moving the swashplate to the desired swashplate angle position.

Abstract translation: 一种用于控制可变容量液压泵的方法和装置，其具有枢转地附接到泵的斜盘。 该方法和装置包括根据泵的功率极限确定期望的斜盘角度，确定实际斜盘角度，确定泵的排出压力的值，将伺服阀阀芯移动到期望位置作为函数 所需的斜盘角度，实际斜盘角度和排出压力，以及响应地将旋转斜盘移动到期望的斜盘角度位置。

公开(公告)号：US5401140A

公开(公告)日：1995-03-28

申请号：US198470

申请日：1994-02-18

Applicant: Thomas M. Anderson

Inventor： Thomas M. Anderson

IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02 ,  F04B35/02

CPC classification number: G01F11/029 ,  F04B15/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0209 ,  F04B2201/06012 ,  F04B2201/1204 ,  F04B2203/0902 ,  F04B2205/05 ,  Y10S417/90

Abstract: A system and method for controlling operation of a sludge material handling system is disclosed. The sludge material handling system includes a positive displacement piston/cylinder pump, a sludge material feed system which delivers sludge material to the pump, and a sludge material disposal system which receives and disposes of sludge material from the pump. A first parameter is sensed, the first parameter bearing a known relationship to an actual volume of sludge material delivered during a pumping cycle. An output value is determined from the first parameter. A control signal is provided as a function of the output value.

Abstract translation: 公开了一种用于控制污泥物料处理系统的操作的系统和方法。 污泥处理系统包括容积式活塞/气缸泵，将污泥材料输送到泵的污泥原料供给系统以及从泵接收和处理污泥物料的污泥物料处理系统。 感测到第一参数，第一参数与在泵送循环期间输送的污泥物料的实际体积具有已知关系。 根据第一个参数确定输出值。 作为输出值的函数提供控制信号。

公开(公告)号：US5106272A

公开(公告)日：1992-04-21

申请号：US595457

申请日：1990-10-10

Applicant: Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

Inventor： Edward A. Oakley ,  Harry K. Crow ,  Thomas M. Anderson ,  Richard T. Atherton ,  Berthold A. Fehn

IPC: F04B15/02 ,  F04B49/06 ,  G01F11/02

CPC classification number: G01F11/029 ,  F04B15/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0209 ,  F04B2201/06012 ,  F04B2201/1204 ,  F04B2203/0902 ,  F04B2205/05 ,  Y10S417/90

Abstract: A system for the transport of high solids sludge includes a positive displacement pump for pumping sludge through a pipeline. The volume of sludge transported is accurately measured by determining the fill percentage by using a material flow signal, measured time intervals, hydraulic fluid pressure, or hydraulic fluid flow rate during each pumping cycle.

Abstract translation: 用于运输高固体污泥的系统包括用于通过管道泵送污泥的容积式泵。 通过在每个泵送循环期间使用材料流动信号，测量的时间间隔，液压流体压力或液压流体流速来确定填充百分比来精确地测量输送的污泥的体积。

公开(公告)号：US4490619A

公开(公告)日：1984-12-25

申请号：US475913

申请日：1983-03-16

Applicant: Robert R. McMinn

Inventor： Robert R. McMinn

IPC: F03B13/00 ,  F04B49/06 ,  H02K7/18 ,  F01K15/00

CPC classification number: H02K7/1807 ,  F03B13/00 ,  F04B49/06 ,  F04B2201/1204 ,  F04B2203/1201

Abstract: A hydraulic driven electric generator and air conditioning system for simultaneously generating controlled quality electrical power and producing air conditioning in a desired area has a variable displacement hydraulic pump for pumping a hydraulic fluid is driven by a prime engine means. The pump is hydraulically connected to a fixed displacement hydraulic motor which is powered by the fluid flow. The first motor drives an electrical generator means for generating electricity having a rotating blower fan mounted within a generator housing. A second hydraulic motor is hydraulically connected to the output of the first motor and is used to provide power to an air conditioning means. Means monitoring the passage of blower teeth of the rotating blower fan produces an electric output responsive to changes detected in the rotation of the blower fan. Servo control means are mounted with the hydraulic pump for controlling the hydraulic fluid displacement of the variable displacement hydraulic pump in response to the monitor means output to maintain an essentially constant rotation of the blower fan.

Abstract translation: 用于同时产生受控质量电力并在期望区域中产生空调的液压驱动发电机和空调系统具有用于泵送由主发动机装置驱动的液压流体的可变排量液压泵。 泵液压连接到由流体流动供电的固定位移液压马达。 第一马达驱动用于发电的发电机装置，其具有安装在发电机壳体内的旋转鼓风机风扇。 第二液压马达液压地连接到第一马达的输出端，用于向空调装置提供动力。 监视旋转的鼓风机风扇的鼓风机齿通过的装置响应于在鼓风扇的旋转中检测到的变化产生电输出。 伺服控制装置安装有液压泵，用于响应于监视装置输出来控制可变排量液压泵的液压流体位移，以保持鼓风机的基本上恒定的旋转。

公开(公告)号：US4245962A

公开(公告)日：1981-01-20

申请号：US52099

申请日：1979-06-26

Applicant: Kazuo Uehara ,  Hideaki Toma ,  Yoshito Sato

Inventor： Kazuo Uehara ,  Hideaki Toma ,  Yoshito Sato

IPC: F16K11/07 ,  F04B49/00 ,  F04B49/08

CPC classification number: F04B49/002 ,  F04B49/08 ,  F04B2201/1204

Abstract: A displacement control system for a variable displacement pump comprising a charge pump; a cut-off control valve connected to the charge pump, the cut-off control valve including a valve body having a first and a second pump ports and an outlet port formed therein, the first pump port being connected to the charge pump and the second pump port being connected to the variable displacement pump, a sleeve mounted within the valve body, a pin slidably mounted within the sleeve, a spool slidably mounted within the sleeve, a cylindrical cap member fixedly secured to the valve body defining a spring chamber therein, and a spring disposed within the spring chamber for urging the spool toward connecting the first pump port with the outlet port; and a servo booster connected to the outlet port for controlling the displacement of the variable displacement pump.

Abstract translation: 一种用于包括电荷泵的可变排量泵的排量控制系统; 连接到所述电荷泵的截止控制阀，所述截止控制阀包括具有形成在其中的第一和第二泵口和出口的阀体，所述第一泵口连接到所述电荷泵，所述第二泵口连接到所述电荷泵， 泵端口连接到可变排量泵，安装在阀体内的套筒，可滑动地安装在套筒内的销，可滑动地安装在套筒内的柱塞，固定地固定到阀体上的圆柱形盖件，在其中限定弹簧室， 以及弹簧，其设置在所述弹簧室内，用于推压所述线轴以将所述第一泵口与所述出口连接; 以及连接到出口的伺服增压器，用于控制可变排量泵的排量。

公开(公告)号：US3935707A

公开(公告)日：1976-02-03

申请号：US490629

申请日：1974-07-22

Applicant: Eugene Scott Murphy ,  Clyde Bennett Stevens

Inventor： Eugene Scott Murphy ,  Clyde Bennett Stevens

IPC: F15B1/00 ,  F16D31/02 ,  F04B49/00

CPC classification number: F15B1/00 ,  F04B2201/1204 ,  F04B2205/08

Abstract: A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function when the driving apparatus is operating up to a predetermined speed. The control circuit also stops delivery of power to the work function when the driving apparatus runs above the predetermined speed.

Abstract translation: 液压控制系统包括用于向功能提供动力的发电电路。 驱动装置操作发电电路。 控制电路连接到发电电路和驱动装置，用于当驱动装置运行到预定速度时允许向功函数递送电力。 当驱动装置运行高于预定速度时，控制电路还停止向功函数的输送。

公开(公告)号：US3935706A

公开(公告)日：1976-02-03

申请号：US490455

申请日：1974-07-22

Applicant: Clyde Bennett Stevens

Inventor： Clyde Bennett Stevens

IPC: F04B49/00 ,  F04B49/08 ,  F15B1/00 ,  F16D31/02

CPC classification number: F15B1/00 ,  F04B49/002 ,  F04B49/08 ,  F04B2201/1204 ,  F04B2205/08

Abstract: A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function when the driving apparatus is operating up to a predetermined speed. The control circuit also stops delivery of power to the work function when the driving apparatus runs above the predetermined speed. The control circuit further includes a cut-off apparatus for stopping delivery of power to the work function when the driving apparatus is running up to the predetermined speed.

Abstract translation: 液压控制系统包括用于向功能提供动力的发电电路。 驱动装置操作发电电路。 控制电路连接到发电电路和驱动装置，用于当驱动装置运行到预定速度时允许向功函数递送电力。 当驱动装置运行高于预定速度时，控制电路还停止向功函数的输送。 控制电路还包括一个切断装置，用于当驱动装置运行到预定速度时停止对功函数的传递。

公开(公告)号：US07322802B2

公开(公告)日：2008-01-29

申请号：US10494183

申请日：2002-10-04

Applicant: Hartmut Benckert ,  Paul Von Baeumen ,  Wolf-Michael Petzold

Inventor： Hartmut Benckert ,  Paul Von Baeumen ,  Wolf-Michael Petzold

IPC: F04B17/00

CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

Abstract: A thick matter pump comprising a drive motor (50), a (reversible) hydraulic pump (6), and two hydraulic cylinders (5, 5′) coupled to conveyor cylinders (7, 7′) for conveying the thick matter. A regulator regulates the rotational speed N of the drive motor (50), and a regulating clement (18, 20) regulates the displacement volume V of the hydraulic pump (6). A control module (54) regulates the rotational speed N of the motor and the displacement volume V. For improved operational ease and reduction of fuel requirements, noise and waste gas emission, the control module (54) comprises a final control element (56) for regulating the conveyance capacity of the conveyor cylinders (7, 7′), and an electronic control unit (108) which reacts to the position of the final control element (56) and allocates a nominal value to the rotational speed regulator and to the displacement volume regulator (20), in a software-assisted manner.

Abstract translation: 一种厚物质泵，包括驱动马达（50），（可逆的）液压泵（6）和耦合到用于输送厚物质的输送机筒（7,7'）的两个液压缸（5,5'）。 调节器调节驱动马达（50）的旋转速度N，并且调节元件（18,20）调节液压泵（6）的排量V。 控制模块（54）包括最终控制元件（56）和控制模块（54），控制模块（54）调节电动机的转速N和排量V。为了改善操作容易性并降低燃料需求，噪声和废气排放， 用于调节输送机气缸（7,7'）的输送能力和对最终控制元件（56）的位置作出反应并向转速调节器分配额定值的电子控制单元（108） 位移量调节器（20），以软件辅助的方式。

公开(公告)号：US20060153700A1

公开(公告)日：2006-07-13

申请号：US10494183

申请日：2002-10-04

Applicant: Hartmut Benckert ,  Paul Von Baumen ,  Wolf-Michael Petzold

Inventor： Hartmut Benckert ,  Paul Von Baumen ,  Wolf-Michael Petzold

IPC: F04B17/00

CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

Abstract: A thick matter pump comprising a conveyance capacity control system. Said thick matter pump comprises a drive motor 50 which is preferably embodied as an internal combustion engine, a hydraulic pump 6 which is preferably embodied as a reversible pump, which has a variable displacement volume V and can be coupled to the driving motor, and two hydraulic cylinders 5, 5′ which are connected to the hydraulic pump 6, can be controlled by the same in a push-pull manner, and are each coupled to a conveyor cylinder 7, 7′ for conveying the thick matter. A regulator for regulating the rotational speed N is associated with the drive motor 50, and a regulating element 18, 20 for regulating the displacement volume V is associated with the hydraulic pump 6. A control module 54 is also provided for regulating the rotational speed N of the motor and the displacement volume V. According to the invention, the control module 54 comprises a final control element 56 for regulating the thick matter conveyance capacity F of the conveyor cylinders 7, 7′, and an electronic control unit 108 which reacts to the position of the final control element 56 and allocates a nominal value to the rotational speed regulator and to the displacement volume regulator 20, in a software-assisted manner. These measures enable improvement of the operational ease of the thick matter pump, and reduction of fuel requirements, noise emission and waste gas emission during practical use.

Abstract translation: 一种厚物质泵，包括输送能力控制系统。 所述厚物质泵包括驱动马达50，其优选地被实施为内燃机，液压泵6优选地被实施为可逆泵，其具有可变排量体积V并且可以联接到驱动马达，并且两个 连接到液压泵6的液压缸5,5'能够以推拉方式由其进行控制，并且各自联接到用于输送厚物质的传送器气缸7,7'。 用于调节转速N的调节器与驱动马达50相关联，并且用于调节排量V的调节元件18,20与液压泵6相关联。还提供控制模块54用于调节转速N 的电动机和排量体积V.根据本发明，控制模块54包括用于调节输送机气缸7,7'的厚物质输送能力F的最终控制元件56和电子控制单元108，电子控制单元108对 最终控制元件56的位置并且以软件辅助的方式为转速调节器和位移量调节器20分配额定值。 这些措施有助于提高厚料泵的操作简便性，减少燃油需求，实际使用中的噪音排放和废气排放。

公开(公告)号：US20050100447A1

公开(公告)日：2005-05-12

申请号：US10705362

申请日：2003-11-11

Applicant: Mihir Desai ,  William Dalton

Inventor： Mihir Desai ,  William Dalton

IPC: F04B1/26 ,  F04B49/00 ,  F04B49/12 ,  F04C14/22 ,  F04C14/26

CPC classification number: F04C14/226 ,  F04B1/26 ,  F04B49/002 ,  F04B49/12 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2201/1213 ,  F04C14/26 ,  F04C2270/20

Abstract: A flow control system for controlling a variable displacement pump including a metering valve in fluid communication with the pump for metering an output of the pump. A regulating valve receives a portion of the output of the pump as a bypass flow at a first pressure, wherein an output of the regulating valve is at an interim pressure. The interim pressure is substantially equal to an average of the first pressure and a low reference pressure. An actuator sets a displacement of the pump by acting on a piston connected to a cam ring of the pump. The actuator receives the interim pressure and, thereby, the output of the variable displacement pump is determined.

Abstract translation: 一种用于控制可变排量泵的流量控制系统，其包括与泵流体连通的计量阀，用于计量泵的输出。 调节阀在第一压力下接收作为旁通流的泵的一部分输出，其中调节阀的输出处于临时压力。 临时压力基本上等于第一压力和低参考压力的平均值。 致动器通过作用在连接到泵的凸轮环的活塞上来设定泵的位移。 致动器接收临时压力，从而确定可变排量泵的输出。