公开(公告)号：US06461117B2

公开(公告)日：2002-10-08

申请号：US09795529

申请日：2001-02-27

Applicant: James A. Thomas

Inventor： James A. Thomas

IPC: F04B4900

CPC classification number: F04D13/022 ,  F04B49/035 ,  F04B49/20 ,  F04B2201/1201 ,  F04D15/0066 ,  Y10T137/86035

Abstract: A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.

公开(公告)号：US20020119053A1

公开(公告)日：2002-08-29

申请号：US09795529

申请日：2001-02-27

Inventor： James A. Thomas

IPC: F04B049/00

CPC classification number: F04D13/022 ,  F04B49/035 ,  F04B49/20 ,  F04B2201/1201 ,  F04D15/0066 ,  Y10T137/86035

Abstract: A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.

Abstract translation: 提供流体泵，其产生不与输入驱动器的速度成比例的流体流出。 因此，无论输入驱动器的速度如何，可以调节流体泵以提供基本恒定的流体流出。 当输入驱动器的旋转方向相反时，流体泵还提供流体流出。

公开(公告)号：US06188947B1

公开(公告)日：2001-02-13

申请号：US09435651

申请日：1999-11-08

Applicant: Wei Zhan

Inventor： Wei Zhan

IPC: H02P100

CPC classification number: B60T17/02 ,  B60T8/4059 ,  B60T13/148 ,  B60T13/16 ,  F04B49/065 ,  F04B2201/1201 ,  F04B2203/0209

Abstract: The speed of a pump motor in a vehicle brake control system is controlled by comparing an actual pump motor speed to a threshold speed. The actual pump motor speed is determined by measuring the pump back emf while the motor is de-energized. If the actual pump motor speed is greater than the threshold speed, the motor remains de-energized. If the actual pump motor speed is less than the threshold speed, the pump motor is energized with a pulse width modulated voltage having a variable duty cycle and a variable frequency which are functions of the difference between the actual pump motor speed and the threshold speed.

Abstract translation: 通过将实际的泵电动机速度与阈值速度进行比较来控制车辆制动控制系统中的泵电动机的速度。 实际的泵电机速度通过在电机断电时测量泵浦电动势来确定。 如果实际的泵马达速度大于阈值速度，马达保持断电。 如果实际的泵马达速度小于阈值速度，则泵马达以具有可变占空比和可变频率的脉冲宽度调制电压来激励，该电压是实际泵马达速度与阈值速度之差的函数。

公开(公告)号：US5927073A

公开(公告)日：1999-07-27

申请号：US913027

申请日：1997-09-05

Applicant: Naoki Ishizaki ,  Kazuo Uehara ,  Hiromasa Yamaguchi

Inventor： Naoki Ishizaki ,  Kazuo Uehara ,  Hiromasa Yamaguchi

IPC: F04B9/00 ,  F04B1/22 ,  F04B17/04 ,  F04B49/00 ,  F04B49/06 ,  F04B53/18 ,  H02K7/00 ,  H02K7/14 ,  F16D39/00

CPC classification number: F04B53/18 ,  F04B1/22 ,  F04B17/046 ,  F04B49/002 ,  F04B49/06 ,  H02K7/00 ,  H02K7/14 ,  F04B2201/0402 ,  F04B2201/1201 ,  F04B2201/12041 ,  F04B2203/0207

Abstract: The present invention is an electric hydraulic hybrid motor which can be made smaller in size and can provide excellent performance. To this end, a hydraulic pump (20) and a hydraulic motor (60) are respectively placed inwardly of the stator (12) of an electric motor (10) and the rotor (14) of the electric motor (10), and the hydraulic pump (20) includes a cylinder block (21) for the pump and a plunger (23) for the pump which are adapted to rotate together with the rotor (14), and the hydraulic motor (60) includes a cylinder block (61) for the motor and a plunger (23a) for the motor.

Abstract translation: PCT No.PCT / JP96 / 00524 Sec。 371日期：1997年9月5日 102（e）日期1997年9月5日PCT提交1996年3月5日PCT公布。 出版物WO96 / 27937 日期1996年9月12日本发明是一种电动液压混合动力电动机，其尺寸可以更小并且可以提供优异的性能。 为此，将液压泵（20）和液压马达（60）分别放置在电动机（10）的定子（12）的内部和电动机（10）的转子（14）的内部，并且 液压泵（20）包括用于泵的气缸体（21）和用于泵的柱塞（23），其适于与转子（14）一起旋转，并且液压马达（60）包括气缸体（61） ）和用于电动机的柱塞（23a）。

公开(公告)号：US5748077A

公开(公告)日：1998-05-05

申请号：US779377

申请日：1997-01-07

Applicant: Calvin Brandt

Inventor： Calvin Brandt

IPC: B60T11/32 ,  B60T17/22 ,  F04B49/025 ,  F04B49/06 ,  F04B49/10 ,  B60Q1/00

CPC classification number: F15B19/005 ,  B60T11/323 ,  B60T17/22 ,  B60T17/221 ,  F04B49/025 ,  F04B49/065 ,  F04B49/10 ,  F04B2201/1201 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/10

Abstract: A system for detecting leaks in a hydraulic system. The system shuts down the hydraulic system if a leak is detected and notifies individuals in the area that a leak has occurred. The leak detection system has sensors for measuring hydraulic system parameters and a computer for detecting abnormalities in the system based on values returned by the sensors. Sensors used in the example leak detection system include an RPM pickup, a pressure transducer, a flow meter and an hydraulic fluid level and temperature switch. Outputs of the sensors are analyzed by the computer to determine if the hydraulic system has a leak. If a leak is detected, the computer sends response signals to a device for engaging or disengaging the prime mover from the hydraulic pump and to another device for actuating a valve to stop hydraulic fluid flow from the reservoir. The computer may also send indicator signals to a display console for activating a warning light, a buzzer or a display.

Abstract translation: 一种用于检测液压系统中的泄漏的系统。 如果检测到泄漏，系统将关闭液压系统，并通知该地区的个人发生泄漏。 泄漏检测系统具有用于测量液压系统参数的传感器和用于基于传感器返回的值来检测系统中的异常的计算机。 在示例性泄漏检测系统中使用的传感器包括RPM拾取器，压力传感器，流量计和液压液位和温度开关。 传感器的输出由计算机分析，以确定液压系统是否有泄漏。 如果检测到泄漏，则计算机将响应信号发送到用于使原动机从液压泵接合或分离的装置，以及用于致动阀以停止来自储存器的液压流体的另一装置。 计算机还可以向显示控制台发送指示信号，以激活警告灯，蜂鸣器或显示器。

公开(公告)号：US5572919A

公开(公告)日：1996-11-12

申请号：US495646

申请日：1995-06-16

Applicant: Naoki Ishizaki

Inventor： Naoki Ishizaki

IPC: F03C1/253 ,  F03C1/38 ,  F03C1/40 ,  F04B1/20 ,  F04B49/06 ,  F04B49/22 ,  F04B1/26

CPC classification number: F04B49/22 ,  F04B1/2021 ,  F04B1/2042 ,  F04B49/06 ,  F04B2201/1201

Abstract: An apparatus controls a pressure in a cylinder chamber of a hydraulic pump-motor. The cylinder chamber is formed by fitting a piston in a cylinder bore of a rotatable cylinder block, and the cylinder block is rotated so that ports going to the cylinder chambers are alternatively opened to a high pressure port and a lower pressure port that are both formed in a valve plate. The apparatus includes a first switching port formed at a top dead point side of the valve plate, the first switching port being communicated with a tank through a first open-close valve. A second switching port is formed at a bottom dead point of the valve plate, the second switching port being communicated with the high pressure port through a second open-close valve. A rotational speed detector detects a rotational speed of the cylinder block, a pressure detector detects a maximum pressure in the cylinder chamber and a control device controls opening and closing timings and opening magnitude of the first and second open-close valves in response to the rotational speed and the maximum pressure.

Abstract translation: PCT No.PCT / JP93 / 01862 Sec。 371日期：1995年6月16日 102（e）日期1995年6月16日PCT 1993年12月22日PCT公布。 第WO94 / 15097号公报 日期1994年7月7日装置控制液压泵马达的气缸室中的压力。 气缸室通过将活塞装配在可旋转的气缸体的气缸孔中而形成，并且气缸体被旋转，使得进入气缸室的端口被交替地打开到形成的高压端口和下压力端口 在阀板中。 该装置包括形成在阀板的上死点侧的第一切换口，第一切换口通过第一开关阀与罐连通。 第二开关端口形成在阀板的下死点处，第二开关端口通过第二开关阀与高压端口连通。 旋转速度检测器检测气缸体的转速，压力检测器检测气缸室中的最大压力，并且控制装置响应于旋转状态来控制第一和第二开关阀的打开和关闭定时以及打开大小 速度和最大压力。

公开(公告)号：US4526513A

公开(公告)日：1985-07-02

申请号：US169985

申请日：1980-07-18

Applicant: Graham D. Bogel

Inventor： Graham D. Bogel

IPC: F04B49/02 ,  F04B49/06 ,  F04B51/00

CPC classification number: F04B51/00 ,  F04B49/02 ,  F04B49/065 ,  F04D27/0223 ,  F04B2201/1201 ,  F04B2205/01 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/11

Abstract: After the pumping station set points for a desired pipeline operation are calculated, they are used by process controllers at the individual pumping stations to control operations at the station. Measured values of the station's performance are compared with the set points. If these values differ enough as to require a change in the speed of the compressors, the speed of the compressors then operating is then slowly changed (or ramped) so as to bring the pipeline into operation at the set points that were calculated. Ramping is performed so that the operating efficiency of the compressors is always maintained at approximately a predetermined level. If it is found that a change is required in the number of compressors being used, this is brought to the attention of the operator of the pipeline who must then decide to let the controller effect the change. At frequent intervals, each compressor is checked for surge and stonewall conditions. In the event a surge condition is detected, the compressor's bypass valve is opened and the compressor is idled. After a suitable time delay, a test is made to determine if there is any speed at which the compressor can be operated for existing flow and compression ratios which will be on the compressor efficiency curve then being used. If so, the compressor is then loaded back on-line and ramped to the correct speed. If not, the operator is requested to permit operation of the compressor at a different efficiency level. If stonewall is present, it is necessary to put additional compressor units on line.

Abstract translation: 在计算出所需的管道运行的泵站设定点之后，它们由各个泵站的过程控制器用于控制站点的操作。 将车站性能的测量值与设定点进行比较。 如果这些值不足以要求压缩机的速度改变，则然后操作的压缩机的速度被缓慢地变化（或斜坡化），以使管道在计算的设定点运行。 执行斜坡以使得压缩机的运行效率总是保持在大约预定水平。 如果发现在使用的压缩机数量上需要进行更改，则将其提请管道的操作者注意，然后必须决定让控制器进行更改。 经常间歇地检查每个压缩机是否发生浪涌和恶劣环境。 在检测到喘振状况的情况下，压缩机旁通阀打开，压缩机空转。 在适当的时间延迟之后，进行测试以确定是否存在压缩机能够对现有流量和压缩比进行操作的速度，这将在压缩机效率曲线上被使用。 如果是这样，压缩机然后在线重新加载到正确的速度。 如果不是，请求操作者以不同的效率水平允许压缩机的操作。 如果存在石墙，则需要将额外的压缩机组放在一起。

公开(公告)号：US11739739B2

公开(公告)日：2023-08-29

申请号：US17945590

申请日：2022-09-15

Applicant: Graco Minnesota Inc.

Inventor： Bryan K. Colby

IPC: F04B9/04 ,  F04B49/12 ,  F04B49/20 ,  F04B17/03

CPC classification number: F04B9/045 ,  F04B17/03 ,  F04B49/126 ,  F04B49/20 ,  F04B2201/1201

Abstract: Non-limiting exemplary embodiments of a pumping system and methods for operating the pumping system in a region of high pressure or a region of high flow are disclosed. The pumping system includes a piston disposed within a piston cylinder, a drive shaft, an eccentric coupled to the drive shaft, a connecting arm having opposing first and second ends, and a controller for controlling the rotation of the drive shaft such that the piston oscillates within a region of high pressure or a region of high flow.

公开(公告)号：US20170373766A1

公开(公告)日：2017-12-28

申请号：US15193621

申请日：2016-06-27

Applicant: General Electric Company

Inventor： Yongjae Lee ,  Joseph Alfred Iannotti ,  Filippo Gerbi ,  Alessio Capanni

IPC: H04B17/10 ,  H01Q9/04 ,  F04B51/00 ,  F02D41/22 ,  F04B49/20 ,  F02F3/00 ,  H01Q9/06 ,  F04B53/14

CPC classification number: H04B17/103 ,  F02D41/22 ,  F02F3/00 ,  F04B1/0408 ,  F04B1/053 ,  F04B27/0409 ,  F04B27/053 ,  F04B39/0022 ,  F04B49/20 ,  F04B51/00 ,  F04B53/144 ,  F04B2201/0204 ,  F04B2201/1201 ,  G01R29/10 ,  G08C17/00 ,  H01Q9/0407 ,  H01Q9/065 ,  H04Q9/00 ,  H04Q2209/886

Abstract: A sensor system for determining a condition associated with a piston rod of a reciprocating system includes an interrogator system having a first antenna. The sensor system further includes a second antenna separated from the first antenna by an air gap distance. The second antenna is configured to be coupled to the piston rod of the reciprocating system. The second antenna is a patch antenna and is configured to communicate with the first antenna through a range of translational movement relative to the first antenna. The sensor system further includes a radio frequency sensor coupled to the second antenna. The radio frequency sensor is configured to be coupled to the piston rod of the reciprocating system, measure a characteristic associated with the piston rod of the reciprocating system, and transmit data associated with the characteristic to the first antenna of the interrogator system through the second antenna.

公开(公告)号：US09115722B2

公开(公告)日：2015-08-25

申请号：US13879022

申请日：2012-02-10

Applicant: Masahiro Minami

Inventor： Masahiro Minami

IPC: F04B49/06 ,  F04D27/00 ,  F04B49/08

CPC classification number: F04D27/00 ,  F04B49/065 ,  F04B49/08 ,  F04B2201/1201 ,  F04B2203/0204 ,  F04B2203/0208 ,  F04B2203/0209 ,  F04B2205/04 ,  F04B2205/05 ,  F04B2205/09

Abstract: The presence or absence of boost pressure is determined from an error between F-P characteristics showing the relationship between the output frequency of an inverter and the power consumption and an actual operating point. When there is boost pressure, an amount of correction of linearized characteristics showing the relationship between quantity and discharge side pressure is automatically calculated based on the error, and the linearized characteristics are corrected. Subsequently, by carrying out a PID control in accordance with a target pressure obtained from post-correction linearized characteristics, the output frequency of an inverter unit is controlled, and an estimated constant end pressure control is carried out. Because of this, a pressure sensor or quantity sensor on a pump intake side is rendered unnecessary, and a simplification and reduction in cost of a feed water pump control device are possible.

Abstract translation: 增压压力的存在或不存在根据表示逆变器的输出频率与功耗之间的关系的F-P特性与实际工作点之间的误差来确定。 当存在增压压力时，基于该误差自动计算出显示出量侧压力与排出侧压力之间关系的线性化特性的校正量，校正线性化特性。 随后，通过根据从校正后线性特性获得的目标压力执行PID控制，控制逆变器单元的输出频率，并且执行估计的恒定端压力控制。 因此，不需要在进气侧的压力传感器或量传感器，并且能够简化和降低给水泵控制装置的成本。