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公开(公告)号：US5252037A
公开(公告)日：1993-10-12
申请号：US922674
申请日：1992-07-30
Applicant: V. R. Carlson
Inventor： V. R. Carlson
CPC classification number: B65B3/32 , F04B11/0058 , F04B7/0266 , F04B9/1174 , F04B2201/0201 , F04B2201/0202 , F04B2201/0203
Abstract: A piston pump for conveying fragile particulate food products without damaging the product. The pump includes a filler and a discharge conduit containing piston valves actuated by hydraulic cylinders. The pumping chamber in which the product is compressed is equipped with a linear displacement transducer/magnet sensor which senses not only the position, but the speed of the piston. In response to the sensor, a proportioning valve releases hydraulic fluid at increasing pressure to a desired maximum, to the hydraulic cylinder actuating the piston in the pumping chamber of a second pump operating in tandem with the first pump. The product is expelled alternatively from the two pumps at the maximum desired pressure appropriate for the character of the product. The pump also includes means for flushing the pump without dismantling.
Abstract translation: 一种活塞泵，用于输送脆弱的颗粒食品而不会损坏产品。 该泵包括一个填充物和一个包含由液压缸致动的活塞阀的排放管道。 产品被压缩的泵送室配备有线性位移传感器/磁体传感器，其不仅检测活塞的位置，而且检测活塞的速度。 响应于传感器，配比阀将液压流体以增加的压力释放到期望的最大值，液压缸致动与第一泵串联操作的第二泵的泵送室中的活塞。 产品以适合于产品特性的最大期望压力从两个泵交替排出。 该泵还包括用于在不拆卸的情况下冲洗泵的装置。
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公开(公告)号：US20180209415A1
公开(公告)日：2018-07-26
申请号：US15412630
申请日：2017-01-23
Applicant: Caterpillar Inc.
Inventor： Yanchai Zhang , Zhijun Cai , Zhaoxu Dong , Xuefei Hu
CPC classification number: F04B51/00 , F04B15/04 , F04B17/05 , F04B17/06 , F04B19/22 , F04B49/02 , F04B49/06 , F04B49/103 , F04B2201/0203
Abstract: A pump monitoring and notification system for a hydraulic pump includes an accelerometer and a controller. The accelerometer is associated with the hydraulic pump and is disposed relative to the hydraulic pump to generate acceleration data indicative of acceleration of the hydraulic pump. The controller is configured to access a fault threshold, access a time threshold, and determine an acceleration of the accelerometer based upon the acceleration data from the accelerometer. The controller is further configured to determine an RMS average of the acceleration of the accelerometer based upon the acceleration of the hydraulic pump, compare the RMS average of the acceleration of the accelerometer to the fault threshold, and generate an alert signal when the RMS average of the acceleration of the accelerometer exceeds the fault threshold for a time period exceeding the time threshold.
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公开(公告)号：US20060024210A1
公开(公告)日：2006-02-02
申请号：US11194022
申请日：2005-07-29
Applicant: Klaus Bittner , Michael Kussmann
Inventor： Klaus Bittner , Michael Kussmann
IPC: B01L3/00
CPC classification number: F04B49/00 , F04B2201/0203 , F04B2205/50 , Y10T436/2575
Abstract: Feed devices for liquid samples serve to convey liquid samples, for example to convey a liquid sample from waste water in a waste water treatment plant so as to monitor the treatment process. Known feed devices feed continuously at relatively low speeds. Films may accrete in the feed line that hinder the feeding and may react with the liquid sample. Therefore, the feed line must be cleaned frequently. In view of this, it is the object of the invention to improve the handling and the maintenance of a feed device for liquid samples. According to the invention, this object is solved by the fact that the feed pump (16) feeds in a pulse-like manner and the feed pump (16) as well as the feed line (18) are configured such that the expansion volume of the feed line (18) during the feed pulse is at most 50% of the pulse volume. Thereby, the feed line is cleaned and kept free of accretions.
Abstract translation: 用于液体样品的进料装置用于输送液体样品，例如从废水处理厂中的废水中输送液体样品，以监测处理过程。 已知的进料装置以相对低的速度连续进料。 进料管线中的膜可能会渗入，阻碍进料，并可能与液体样品发生反应。 因此，必须经常清洁送料线。 鉴于此，本发明的目的是改进用于液体样品的进料装置的处理和维护。 根据本发明，该目的通过以下事实来解决：馈送泵（16）以类似脉冲的方式进给，并且进料泵（16）以及进料管线（18）被构造成使得膨胀体积 进料脉冲期间的进料管线（18）至多为脉冲体积的50％。 因此，进料管线被清洁并保持不受压力。
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公开(公告)号：US20170268500A1
公开(公告)日：2017-09-21
申请号：US15424452
申请日：2017-02-03
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Omar Al Assad , Rogier Sebastiaan Blom, JR. , Gary Hughes , Justin Edwin Barton , Peter Westerkamp
CPC classification number: F04B49/20 , E21B43/126 , E21B47/0007 , E21B47/0008 , F04B47/022 , F04B47/026 , F04B49/065 , F04B51/00 , F04B53/14 , F04B2201/0201 , F04B2201/0202 , F04B2201/0203 , F04B2201/1201 , F04B2201/121 , F04B2201/1211
Abstract: A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.
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公开(公告)号：US07854894B2
公开(公告)日：2010-12-21
申请号：US11194022
申请日：2005-07-29
Applicant: Klaus Bittner , Michael Kussmann
Inventor： Klaus Bittner , Michael Kussmann
IPC: B01L3/02
CPC classification number: F04B49/00 , F04B2201/0203 , F04B2205/50 , Y10T436/2575
Abstract: Feed devices for liquid samples serve to convey liquid samples, for example to convey a liquid sample from waste water in a waste water treatment plant so as to monitor the treatment process. Known feed devices feed continuously at relatively low speeds. Films may accrete in the feed line that hinder the feeding and may react with the liquid sample. Therefore, the feed line must be cleaned frequently. In view of this, it is the object of the invention to improve the handling and the maintenance of a feed device for liquid samples. According to the invention, this object is solved by the fact that the feed pump (16) feeds in a pulse-like manner and the feed pump (16) as well as the feed line (18) are configured such that the expansion volume of the feed line (18) during the feed pulse is at most 50% of the pulse volume. Thereby, the feed line is cleaned and kept free of accretions.
Abstract translation: 用于液体样品的进料装置用于输送液体样品，例如从废水处理厂中的废水中输送液体样品，以监测处理过程。 已知的进料装置以相对低的速度连续进料。 进料管线中的膜可能会渗入，阻碍进料，并可能与液体样品发生反应。 因此，必须经常清洁送料线。 鉴于此，本发明的目的是改进用于液体样品的进料装置的处理和维护。 根据本发明，该目的通过以下事实来解决：馈送泵（16）以类似脉冲的方式进给，并且进料泵（16）以及进料管线（18）被构造成使得膨胀体积 进料脉冲期间的进料管线（18）至多为脉冲体积的50％。 因此，进料管线被清洁并保持不受压力。
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Patent Agency Ranking
公开(公告)号：US20180217015A1
公开(公告)日：2018-08-02
申请号：US15883772
申请日：2018-01-30
Applicant: TECAT Performance Systems, LLC
Inventor： Douglas M. Baker , Wen-Lung Huang , Joseph D. Glandorf , Ronald G. Rath
CPC classification number: G01L1/2206 , F04B47/02 , F04B49/02 , F04B49/065 , F04B51/00 , F04B2201/0203 , G01L1/2218 , G01L5/0004 , G01L5/0033 , G01L5/0038 , G01L5/0061 , G01L5/102 , H04L67/12 , H05K7/1428
Abstract: An integrated wireless data system including a wireless load cell assembly and method for measuring operational data of one or more components for safety, health monitoring, and control is provided. The wireless load cell assembly can include an energy storage device and may be configured to allow for bi-directional communication with a base unit to store operational parameters in a database for use in development of predictive maintenance techniques. The axial load cell can rotate freely for simple installation without regard to rotational orientation. A power management strategy and energy harvesting system are provided to ensure long term use of the wireless load cell assembly without the need to replace the energy storage device.
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公开(公告)号：US20170037845A1
公开(公告)日：2017-02-09
申请号：US14945163
申请日：2015-11-18
Applicant: General Electric Company
Inventor： Omar Al Assad , Rogier Sebastiaan Blom , Gary Hughes , Justin Edwin Barton , Peter Westerkamp
CPC classification number: F04B49/20 , E21B43/126 , E21B47/0007 , F04B19/22 , F04B47/022 , F04B49/065 , F04B51/00 , F04B53/14 , F04B2201/0201 , F04B2201/0202 , F04B2201/0203 , F04B2201/1201 , F04B2201/121 , F04B2201/1211
Abstract: A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.
Abstract translation: 用于以泵速度操作杆式抽油机的控制器。 控制器包括处理器，该处理器被配置为以第一速度操作杆式抽油机的泵活塞。 处理器还被配置为基于位置信号和负载信号来确定泵冲程的泵填充水平。 处理器还被配置为基于泵冲程的泵填充水平将泵速降低到第二速度。
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公开(公告)号：US20160215767A1
公开(公告)日：2016-07-28
申请号：US14607365
申请日：2015-01-28
Inventor： Srujan Kusumba , Gregory William Hahn , Michael Lee McIntyre , Joseph W. Latham
CPC classification number: F04B35/04 , F04B35/045 , F04B49/06 , F04B49/065 , F04B2201/0201 , F04B2201/0203 , F04B2203/0401 , F04B2203/0409
Abstract: A method for operating a linear compressor is provided. The method includes estimating an acceleration of the motor of the linear compressor using at least a robust integral of the sign of the error feedback. A position of the motor of the linear compressor when the motor of the linear compressor is at the bottom dead center point is also determined based at least in part on a measured current to the motor of the linear compressor and an estimated acceleration of the motor. The position of the motor of the linear compressor when the motor of the linear compressor is at a top dead center point is calculated based at least in part on the position of the motor of the linear compressor when the motor of the linear compressor is at the bottom dead center point and a stroke length of the motor of the linear compressor.
Abstract translation: 提供了一种用于操作线性压缩机的方法。 该方法包括使用误差反馈的符号的至少鲁棒积分来估计线性压缩机的电动机的加速度。 线性压缩机的电机处于下死点时的线性压缩机的电动机的位置也至少部分地基于对线性压缩机的电动机的测量电流和电动机的估计加速度来确定。 当线性压缩机的电动机处于上止点时，线性压缩机的电动机的位置至少部分地基于线性压缩机的电动机的位置，当线性压缩机的电动机处于 线性压缩机的电机的下死点和行程长度。
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公开(公告)号：US08202058B2
公开(公告)日：2012-06-19
申请号：US12503201
申请日：2009-07-15
Applicant: Per Nielsen Lindholdt , Dietmar W. Weiss
Inventor： Per Nielsen Lindholdt , Dietmar W. Weiss
CPC classification number: F04B49/12 , F01B3/0044 , F01B3/007 , F01B3/0082 , F01B3/105 , F01B31/12 , F04B1/295 , F04B27/1072 , F04B27/22 , F04B2201/0201 , F04B2201/0203
Abstract: A variable displacement axial piston machine. The variable displacement axial piston machine includes a cylinder block with at least one main cylinder and main piston, a swash plate, a plunger arrangement with a plunger and auxiliary cylinder, and a sensor. The swash plate is arranged to effect movement of the main piston in the main cylinder upon rotation of the swash plate relative to the cylinder arrangement. The plunger is arranged to tilt the swash plate relative to the cylinder arrangement and to control a stroke of the main cylinder in the main piston. To provide a simple and reliable measurement of displacement of the main piston in the main cylinder, the invention provides a sensor element which is fixed in the auxiliary cylinder and which is adapted to sense movement of the plunger therein.
Abstract translation: 可变排量轴向活塞机。 可变排量轴向活塞机包括具有至少一个主缸和主活塞的气缸体，斜盘，具有柱塞和辅助气缸的柱塞装置和传感器。 旋转斜盘被布置成在旋转斜盘相对于气缸装置旋转时实现主活塞在主缸中的运动。 柱塞布置成相对于气缸装置倾斜旋转斜盘，并且控制主活塞中主缸的行程。 为了提供主气缸中的主活塞的位移的简单和可靠的测量，本发明提供了一种传感器元件，其被固定在辅助气缸中并且适于感测柱塞在其中的运动。
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公开(公告)号：US20100172766A1
公开(公告)日：2010-07-08
申请号：US12503201
申请日：2009-07-15
Applicant: Per Nielsen Lindholdt , Dietmar W. Weiss
Inventor： Per Nielsen Lindholdt , Dietmar W. Weiss
CPC classification number: F04B49/12 , F01B3/0044 , F01B3/007 , F01B3/0082 , F01B3/105 , F01B31/12 , F04B1/295 , F04B27/1072 , F04B27/22 , F04B2201/0201 , F04B2201/0203
Abstract: The invention provides a variable displacement axial piston machine comprising a cylinder block with at least one main cylinder and main piston, a swash plate, a plunger arrangement with a plunger and auxiliary cylinder, and a sensor. The swash plate is arranged to effect movement of the main piston in the main cylinder upon rotation of the swash plate relative to the cylinder arrangement, the plunger being arranged to tilt the swash plate relative to the cylinder arrangement and thereby to control a stroke of the main cylinder In the main piston. To provide a simple and reliable measurement of displacement of the main piston in the main cylinder, the invention provides a sensor element which is fixed in the auxiliary cylinder and which is adapted to sense movement of the plunger therein.
Abstract translation: 本发明提供一种可变排量轴向活塞机，其包括具有至少一个主缸和主活塞的气缸体，斜盘，具有柱塞和辅助气缸的柱塞装置和传感器。 旋转斜盘被布置成在旋转斜盘相对于气缸装置旋转时实现主活塞在主缸中的运动，柱塞布置成相对于气缸装置倾斜旋转斜盘，从而控制 主缸主活塞。 为了提供主气缸中的主活塞的位移的简单和可靠的测量，本发明提供了一种传感器元件，其被固定在辅助气缸中并且适于感测柱塞在其中的运动。
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