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公开(公告)号：US20190063424A1
公开(公告)日：2019-02-28
申请号：US15691844
申请日：2017-08-31
Inventor： Srujan Kusumba , Gregory William Hahn , Michael Lee McIntyre , Joseph W. Latham
CPC classification number: F04B49/06 , F04B35/04 , F04B35/045 , F04B49/10 , F04B49/12 , F04B51/00 , F04B2201/0201 , F04B2203/0401 , F04B2203/0402 , G01R19/003 , G01R19/04 , G01R31/343
Abstract: A method for detecting head crashing in a linear compressor includes sampling a rolling average of a peak applied voltage and a desired peak current each time that a current controller adjusts the desired peak current. The method also includes calculating a linear regression for a predicted peak applied voltage as a function of the desired peak current, calculating the predicted peak voltage for the motor of the linear compressor with the linear regression and a current value for the desired peak current from the current controller, and establishing that a piston of the linear compressor is soft crashing when the predicted peak voltage is different than the current value for the rolling average of the peak applied voltage by more than a threshold value.
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公开(公告)号：US20180355860A1
公开(公告)日：2018-12-13
申请号：US16107772
申请日：2018-08-21
Applicant: Ingersoll-Rand Company
Inventor： Warren A. Seith
IPC: F04B43/073 , F04B9/135 , F04B43/00
CPC classification number: F04B43/0736 , F04B9/135 , F04B43/0081 , F04B2201/0201 , F04B2201/0206
Abstract: Illustrative embodiments of diaphragm pumps having an automatic priming function, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of priming a diaphragm pump includes sensing, with a pressure sensor disposed at a fluid outlet of the diaphragm pump, a pressure of a fluid being pumped by the diaphragm pump, transmitting a pressure signal associated with the sensed pressure from the pressure sensor to a controller of the diaphragm pump, and identifying, on the controller, whether the diaphragm pump is primed by determining whether a characteristic of the pressure signal has reached a threshold.
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公开(公告)号：US10054115B2
公开(公告)日：2018-08-21
申请号：US13763926
申请日：2013-02-11
Applicant: Ingersoll-Rand Company
Inventor： Warren Andrew Seith
IPC: F04B43/073 , F04B9/135 , F04B43/00
CPC classification number: F04B43/0736 , F04B9/135 , F04B43/0081 , F04B2201/0201 , F04B2201/0206
Abstract: Illustrative embodiments of diaphragm pumps having an automatic priming function, as well as related systems and methods, are disclosed. In one illustrative embodiment, a method of priming a diaphragm pump includes sensing, with a pressure sensor disposed at a fluid outlet of the diaphragm pump, a pressure of a fluid being pumped by the diaphragm pump, transmitting a pressure signal associated with the sensed pressure from the pressure sensor to a controller of the diaphragm pump, and identifying, on the controller, whether the diaphragm pump is primed by determining whether a characteristic of the pressure signal has reached a threshold.
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公开(公告)号：US20180230992A1
公开(公告)日：2018-08-16
申请号：US15432542
申请日：2017-02-14
Applicant: Alkhorayef Petroleum Company Limited
Inventor： David S. Shanks
CPC classification number: F04B49/06 , E21B43/128 , F04B1/12 , F04B17/03 , F04B17/044 , F04B19/22 , F04B47/06 , F04B49/12 , F04B53/1002 , F04B53/18 , F04B2201/0201 , F04B2203/0405 , F04B2205/03 , F04B2207/046
Abstract: An example linear pumping system suitable for small size and low flow rate operation. The system includes a pump casing that encloses a linear motor and one or two (an upper and lower) pumps. The pump casing may include an upper fluid inlet port, a lower fluid inlet port, and a fluid-outlet port. The linear motor includes a stator and a mover, where the mover includes an upper plunger portion and a lower plunger portion and is configured to move alternately up and down relative to the stator. The upper and lower pumps positioned on both sides of the mover may each include a pump chamber, a fluid inlet valve, and a fluid outlet valve. In operation, hydraulic pressure from the upper and lower pump outlet valves causes fluid within an interior cavity of the pump casing to be expelled through the fluid outlet port. The motion of the mover can be controlled using pressure and/or plunger position measurements.
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公开(公告)号：US10001114B1
公开(公告)日：2018-06-19
申请号：US15471959
申请日：2017-03-28
Applicant: Jessop Initiatives LLC
Inventor： Louis M. Jessop
CPC classification number: F04B15/023 , F04B1/005 , F04B1/02 , F04B7/0019 , F04B7/0023 , F04B7/0096 , F04B9/105 , F04B15/02 , F04B23/02 , F04B49/22 , F04B53/08 , F04B53/10 , F04B2201/0201 , F16K11/0743
Abstract: A continuous flow pumping system which provides a continuous flow of materials out of an outlet while eliminating rough stroke shift and boom bounce. The continuous flow pumping system generally includes a container for storing a material to be dispensed such as concrete. Cylinders are fluidly connected to the container such that the materials may be alternatively pulled into the cylinders or pushed out of the cylinders. A diverter valve is connected to the container adjacent the cylinders which includes a valve inlet through which the materials may be pushed to be dispensed and a pair of blocking portions which selectively cover the cylinders and also serve to cut through the materials. By rotating the diverter valve through a plurality of positions while independently controlling the intake and exhaust strokes of the cylinders, a continuous flow of materials may be ensured across all intake/exhaust strokes of the cylinders.
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Patent Agency Ranking
公开(公告)号：US20170335834A1
公开(公告)日：2017-11-23
申请号：US15162024
申请日：2016-05-23
Applicant: Caterpillar Inc.
Inventor： Sunil Bean , Daniel Puckett , Andrew Neaville
CPC classification number: F04B17/03 , F02D19/0647 , F02D19/0663 , F02M21/0218 , F02M21/0221 , F02M21/0275 , F02M21/0281 , F02M21/0287 , F02M43/02 , F02M53/02 , F02M59/105 , F02M2200/245 , F04B1/124 , F04B1/128 , F04B9/107 , F04B9/1176 , F04B49/06 , F04B2201/0201 , Y02T10/32 , Y02T10/36
Abstract: A fluid system such as a fuel system includes a fluid supply and a pump coupled between the fluid supply and a plurality of fluid delivery devices. The pump can be a cryogenic pump such as for liquefied natural gas, with valve mechanisms to control hydraulic actuation of a piston used to pump the liquefied natural gas. An electrically conductive coil is coupled with the piston. Related methodology is disclosed.
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公开(公告)号：US20170199513A1
公开(公告)日：2017-07-13
申请号：US15468611
申请日：2017-03-24
Applicant: Wagner Spray Tech Corporation
Inventor： Daniel R. Zientara , Lam H. Nguyen , Jonathan L. Schaumann
IPC: G05B19/416 , F04B49/06 , F04B51/00 , F04B49/02
CPC classification number: G05B19/416 , B05B9/0413 , B05B12/081 , F04B15/02 , F04B17/06 , F04B49/02 , F04B49/06 , F04B49/065 , F04B51/00 , F04B2201/0201 , F16H25/2015 , F16H25/2252 , G05B2219/41312
Abstract: A liquid delivery system is presented. The liquid delivery system comprises a source of fluid coupled to an outlet. The liquid delivery system also includes a hydraulic cylinder coupled to the source of fluid. The hydraulic cylinder has a piston movable between a first limit position and a second limit position during an operational cycle. The hydraulic cylinder is configured to pressurize fluid received from the source of fluid, and deliver the pressurized fluid to the outlet. The liquid delivery system also comprises a rod connected to the piston and extending out of the cylinder. The liquid delivery system also comprises a sensor configured to sense a position of the rod to provide a signal indication of the piston with respect to the first position or the second position. An indication of the sensed position is provided to a controller, and the controller is configured to send a control signal to initiate a normal operation loop based on the sensed position.
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公开(公告)号：US09695806B2
公开(公告)日：2017-07-04
申请号：US12839997
申请日：2010-07-20
Applicant: Nicholas P. Van Brunt , John A. Kivisto , Theodore W. Jagger
Inventor： Nicholas P. Van Brunt , John A. Kivisto , Theodore W. Jagger
CPC classification number: F04B17/04 , A61M1/14 , A61M16/0057 , A61M16/0072 , A61M16/101 , A61M2202/0208 , A61M2205/42 , A61M2209/088 , F04B17/042 , F04B27/005 , F04B35/045 , F04B39/0005 , F04B39/125 , F04B49/065 , F04B2201/0201 , F04B2203/0401 , F04B2205/07 , F05C2203/02 , F05C2203/0808 , H02K16/00 , H02K33/16
Abstract: A method of controlling a fluid pump. The pump has a plurality of oscillating pistons that travel along a central axis of a piston sleeve. A plurality of pistons is of similar mass within a piston sleeve are provided, and adjacent pistons are positioned to be 180 degrees apart in phase oscillations. An electric coil is provided for each piston, and the position of adjacent pistons is determined. The current to one of the electric coils for a piston is adjusted to maintain the 180 degree difference in phase between oscillations of adjacent pistons.
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公开(公告)号：US20170037848A1
公开(公告)日：2017-02-09
申请号：US15162459
申请日：2016-05-23
Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Inventor： Clark E. ROBISON , Jeffrey J. LEMBCKE
CPC classification number: F04B53/143 , E21B43/126 , F04B9/10 , F04B19/22 , F04B23/00 , F04B41/00 , F04B47/02 , F04B47/04 , F04B49/065 , F04B51/00 , F04B53/144 , F04B53/18 , F04B2201/0201 , F04B2205/05 , G01M3/2869
Abstract: A system can include an actuator with a piston rod that displaces in response to pressure in the actuator, a seal assembly that seals about the piston rod and includes seal cartridges, each including a dynamic seal sealingly engaging the rod, and each including a static seal sealingly engaging a seal assembly housing, and a port providing communication between a housing exterior and a housing interior between adjacent static seals. A method can include preventing leakage from a well with a seal assembly about a piston rod of a hydraulic actuator, the seal assembly including seal cartridges, each including a dynamic seal that sealingly engages the rod, and each including a static seal that sealingly engages a seal assembly housing, enabling communication through a housing sidewall to a housing interior between adjacent static seals, and reciprocably displacing the rod in response to pressure variations in the actuator.
Abstract translation: 系统可以包括具有响应于致动器中的压力而移位的活塞杆的致动器，围绕活塞杆密封并包括密封盒的密封组件，每个密封件包括密封地接合杆的动态密封件，并且每个包括静态密封件 密封地接合密封组件壳体，以及提供壳体外部和相邻静态密封件之间的壳体内部之间的连通的端口。 一种方法可以包括防止密封组件围绕液压致动器的活塞杆泄漏，密封组件包括密封盒，密封组件包括密封地接合杆的动态密封件，并且每个密封件包括密封地接合 密封组件壳体，使得能够通过壳体侧壁连通到相邻静态密封件之间的壳体内部，并且响应于致动器中的压力变化而使杆可往复移动。
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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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