Total power controller
    11.
    发明授权
    Total power controller 失效
    总功率控制器

    公开(公告)号:US07607297B2

    公开(公告)日:2009-10-27

    申请号:US10583070

    申请日:2004-11-11

    Applicant: Juan Moya

    Inventor: Juan Moya

    Abstract: The invention relates to a total power regulation device for two pumps (2, 42), each of which is connected to a working conduit (5, 45). The delivery volume of the pumps (2, 42) can be set separately by a respective adjusting device (6, 46), whereby a control pressure that is active in each adjusting device (6, 46) can be set by a total power regulation valve (18, 58). The latter (18, 58) has a measuring surface (24, 64) of the total power regulation valve (18, 58) of one pump (2, 42) can be directly exposed to the working pressure of the other pump (42, 2).

    Abstract translation: 本发明涉及一种用于两个泵(2,22)的总功率调节装置,每个泵连接到工作导管(5,45)。 泵(2,22)的输送量可以由相应的调节装置(4,66)分别设定,从而可以通过总功率调节来设定每个调节装置(6,46)中有效的控制压力 阀门(18,58)。 后者(18,58)具有一个泵(2,22)的总功率调节阀(18,58)的测量表面(24,64)可以直接暴露于另一个泵(42,48)的工作压力, 2)。

    Hydraulic pump control device
    13.
    发明授权
    Hydraulic pump control device 失效
    液压泵控制装置

    公开(公告)号:US06672055B1

    公开(公告)日:2004-01-06

    申请号:US09869924

    申请日:2001-07-09

    Abstract: Disclosed herein is a hydraulic-pump controller that is capable of controlling absorbed pump torque in good balance against engine output at all times. In this hydraulic-pump controller, the discharge flow rates of the operating oil that are discharged from hydraulic pumps (9, 10) according to manipulation of manipulation units (12, 13) are predicted based on the discharge pressure of the hydraulic pumps (9, 10) that are driven by an engine (1), and based on the manipulation amount of the manipulation units (12, 13) that manipulate hydraulic actuators (27, 28), or a physical quantity correlating with the manipulation amount. Based on the predicted discharge flow rates and the discharge pressure, the absorbed torque of the hydraulic pumps is computed. Then, the predictive engine speed of the engine (11) is computed from the absorbed torque of the hydraulic pumps (9, 10) computed. Based on the deviation between the computed predictive engine speed and the actual engine speed of the engine (11), the regulators (12, 13) of the hydraulic pumps (9, 10) are controlled.

    Abstract translation: 本文公开了一种液压泵控制器,其能够始终控制吸收的泵扭矩与发动机输出的良好平衡。 在该液压泵控制器中,基于操作单元(12,13)的操作从液压泵(9,10)排出的工作油的排出流量基于液压泵(9)的排出压力 ,10),并且基于操纵液压致动器(27,28)的操作单元(12,13)的操作量或与操作量相关的物理量。 基于预测的排放流量和排放压力,计算出液压泵的吸收扭矩。 然后,从计算出的液压泵(9,10)的吸收转矩算出发动机(11)的预测发动机转速。 基于计算出的预测发动机速度与发动机(11)的实际发动机转速之间的偏差,控制液压泵(9,10)的调节器(12,13)。

    Method and apparatus for controlling a variable displacement hydraulic pump
    14.
    发明申请
    Method and apparatus for controlling a variable displacement hydraulic pump 有权
    用于控制可变排量液压泵的方法和装置

    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

    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。

    Pump enable system and method
    15.
    发明授权
    Pump enable system and method 失效
    泵启用系统和方法

    公开(公告)号:US06296455B1

    公开(公告)日:2001-10-02

    申请号:US09245284

    申请日:1999-02-05

    Abstract: A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control system in the pump controls a position of the displacement control device based on a load on the pump. An over-ride system selectively over-rides the position control system such that the displacement control device assumes a position which reduces displacement of the pistons in the pump.

    Abstract translation: 泵启动系统包括具有位移控制装置的可变排量活塞泵。 位移控制装置基于其位置来控制泵中的活塞的位移,并且泵中的位置控制系统基于泵上的负载来控制排量控制装置的位置。 超越系统选择性地超越位置控制系统,使得位移控制装置采取减少泵中活塞的位移的位置。

    Means and method for varying margin pressure as a function of pump
displacement in a pump with load sensing control
    16.
    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 classification number: F04B49/08 F04B2201/1203 F04B2205/061 F04B2205/09

    Abstract: 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.

    Abstract translation: 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。

    METHODS AND SYSTEMS FOR OPERATING A FLEET OF PUMPS

    公开(公告)号:US20240344440A1

    公开(公告)日:2024-10-17

    申请号:US18756978

    申请日:2024-06-27

    Abstract: A system and method for operating a fleet of pumps for a turbine driven fracturing pump system used in hydraulic fracturing is disclosed. A method of operating a fleet of pumps associated with a hydraulic fracturing system includes receiving a demand Hydraulic Horse Power (HHP) signal. The demand HHP signal may include the Horse Power (HP) required for the hydraulic fracturing system to operate and may include consideration for frictional and other losses. The method further includes operating all available pump units at a percentage of rating below Maximum Continuous Power (MCP) level, based on the demand HHP signal. Furthermore, the method may include receiving a signal for loss of power from one or more pump units. The method further includes operating one or more units at MCP level and operating one or more units at Maximum Intermittent Power (MIP) level to meet the demand HHP signal.

    Method for controlling a hydrostatic drive
    18.
    发明授权
    Method for controlling a hydrostatic drive 失效
    控制静液压驱动的方法

    公开(公告)号:US08380407B2

    公开(公告)日:2013-02-19

    申请号:US12745569

    申请日:2008-12-22

    Abstract: The invention relates to a method for controlling a hydrostatic drive having at least one first hydraulic consumer and one second hydraulic consumer. The two hydraulic consumers are driven by a common drive machine. First of all, a first power requirement of the first hydraulic consumer is determined (20). Proceeding from the determined first power requirement, the free power which is available as a result of the common drive machine is determined (21). This available free power of the common drive machine is scaled onto a possible actuating path of a control transmitter for the working hydraulics (22). A position of the control transmitter for actuating the second hydraulic consumer is determined (23) and a power requirement is assigned on the basis of the scaled available free power. An operating point of the common drive machine is fixed from the first power requirement and the second power requirement (24).

    Abstract translation: 本发明涉及一种用于控制具有至少一个第一液压消耗器和一个第二液压消耗器的静液压驱动器的方法。 这两个液压消耗者由普通驱动机构驱动。 首先,确定第一液压消费者的第一功率要求(20)。 根据确定的第一电力要求,确定由于普通驱动机器而可获得的自由功率(21)。 普通驱动机器的这种可用的可用功率被缩放到用于工作液压装置(22)的控制变送器的可能的致动路径上。 确定用于启动第二液压消耗器的控制变送器的位置(23),并且基于经缩放的可用自由功率来分配功率需求。 普通驱动机器的工作点是从第一电源要求和第二电源要求(24)固定的。

    Method and device for operating an electric peristaltic hose pump
    19.
    发明授权
    Method and device for operating an electric peristaltic hose pump 有权
    用于操作电动蠕动软管泵的方法和装置

    公开(公告)号:US08043076B2

    公开(公告)日:2011-10-25

    申请号:US12282544

    申请日:2007-03-01

    Abstract: The invention relates to a method and to a device for operating an electric peristaltic hose pump, in particular a hose pump for transporting fluids in medical-technical devices, in particular extracorporeal blood treatment devices. In order to monitor the regular operation of a hose pump, the power consumption of the pump or a physical variable in correlation with the power consumption, in particular the pump flow, is monitored. The pump flow includes a periodically non-altering direct component which is superimposed on a periodically altering alternating component. In order to monitor the regular operation of the hose pump, the alternating component of the power consumption in relation to the direct component of the power consumption is monitored as whether it increases and/or decreases during blood treatment.

    Abstract translation: 本发明涉及一种用于操作电动蠕动软管泵的方法和装置,特别是用于在医疗技术装置中输送流体的软管泵,特别是体外血液处理装置。 为了监测软管泵的常规操作,监测泵的功率消耗或与功率消耗特别是泵流量相关的物理变量。 泵流包括周期性地不改变的直接分量,其被叠加在周期性变化的交替分量上。 为了监视软管泵的常规操作,监测与功耗的直接分量相关的功率消耗的交替分量,以及在血液处理期间是否增加和/或减少。

    METHOD FOR CONTROLLING A HYDROSTATIC DRIVE
    20.
    发明申请
    METHOD FOR CONTROLLING A HYDROSTATIC DRIVE 失效
    控制静电驱动的方法

    公开(公告)号:US20100324791A1

    公开(公告)日:2010-12-23

    申请号:US12745569

    申请日:2008-12-22

    Abstract: The invention relates to a method for controlling a hydrostatic drive having at least one first hydraulic consumer and one second hydraulic consumer. The two hydraulic consumers are driven by a common drive machine. First of all, a first power requirement of the first hydraulic consumer is determined (20). Proceeding from the determined first power requirement, the free power which is available as a result of the common drive machine is determined (21). This available free power of the common drive machine is scaled onto a possible actuating path of a control transmitter for the working hydraulics (22). A position of the control transmitter for actuating the second hydraulic consumer is determined (23) and a power requirement is assigned on the basis of the scaled available free power. An operating point of the common drive machine is fixed from the first power requirement and the second power requirement (24).

    Abstract translation: 本发明涉及一种用于控制具有至少一个第一液压消耗器和一个第二液压消耗器的静液压驱动器的方法。 这两个液压消耗者由普通驱动机构驱动。 首先,确定第一液压消费者的第一功率要求(20)。 根据确定的第一电力要求,确定由于普通驱动机器而可获得的自由功率(21)。 普通驱动机器的这种可用的可用功率被缩放到用于工作液压装置(22)的控制变送器的可能的致动路径上。 确定用于启动第二液压消耗器的控制变送器的位置(23),并且基于经缩放的可用自由功率来分配功率需求。 普通驱动机器的工作点是从第一电源要求和第二电源要求(24)固定的。

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