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公开(公告)号：US11978932B2
公开(公告)日：2024-05-07
申请号：US17175837
申请日：2021-02-15
发明人： Kazuhide Inoue , Kuniaki Ojima , Tomoyuki Inoue , Osamu Ogami
IPC分类号： H01M8/04664 , G01L19/00 , H01M8/0438 , H01M8/1004
CPC分类号： H01M8/04671 , G01L19/0007 , H01M8/04388 , H01M8/04402 , H01M8/1004 , H01M2250/20
摘要： A method of detecting degradation of a membrane electrode assembly in a fuel cell system is provided. In the method, it is possible to detect degradation (cross leakage) of a fuel cell. In the state where variation of a load is suppressed, variation of the gas pressure where a predetermined amount of the fuel gas is supplied from a fuel tank to a fuel cell is measured by a pressure sensor provided in a fuel gas circulation channel extending from the fuel gas outlet to the fuel gas inlet.
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公开(公告)号：US20240094078A1
公开(公告)日：2024-03-21
申请号：US18254235
申请日：2021-11-02
发明人： Atsushi HIDAKA , Takatoshi NAKATANI , Kaoru HIRATA , Kouji NISHINO , Nobukazu IKEDA , Masaki FUKASAWA
CPC分类号： G01L9/0044 , G01L19/0007
摘要： The pressure sensor 10 comprises: a bottomed cylindrical sensor module 11 having inside a pressure receiving chamber C1 communicating with a flow path and including a diaphragm 11a in contact with the pressure receiving chamber; a pressure detecting element 12 for outputting a strain of the diaphragm 11a as a pressure; a base ring 14 fixed at an outer edge of an open-side end part 11c of the sensor module and disposed on an outer peripheral side of the sensor module 11; a hermetic member 13 fixed to the base ring 14 for forming a sealed vacuum chamber C2 opposite to the pressure receiving chamber C1 across the diaphragm 11a; a gasket 18 sandwiched between the base ring 14 and a body 5; and a pressing flange 19 for pressing the base ring 14 to the body 5 through the gasket 18.
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公开(公告)号：US20240053214A1
公开(公告)日：2024-02-15
申请号：US18449602
申请日：2023-08-14
发明人： Carlos Alberto NOGUEIRA, JR. , Marcelo DA CRUZ RODRIGUES , Volney Soares LOPES , Walter Antonio KAPP , Eduardo César CORDEIRO VIEIRA
IPC分类号： G01L19/00 , E21B47/001
CPC分类号： G01L19/0007 , E21B47/001
摘要： The present invention pertains to the technical field of subsea equipment technologies dedicated to the inspection of pipes and risers and describes, according to preferred embodiments of the invention, an inspection tool and a system comprising a compliant feature of passive adaptation for inspection of the annular region of flexible pipes. The inspection tool comprises a mechanical structure with a chamber and a two-way sealing assembly comprising an inner seal and an outer seal that create a tight connection for carrying out inspection operations. Further, a system for the inspection comprising at least the inspection tool, an anchoring mechanism, an approximation mechanism and an ROV is described.
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公开(公告)号：US20240003770A1
公开(公告)日：2024-01-04
申请号：US17855935
申请日：2022-07-01
CPC分类号： G01L19/148 , H05K1/0272 , H05K1/181 , G01L19/0007 , G01L19/0069 , H05K2201/10151
摘要： A sensor package includes a substrate and a channel within the substrate. The channel is configured to allow flow of a fluid therethrough. The sensor package also includes a sensor disposed on the substrate and a lid. The sensor is configured to sense a property of the fluid. The lid forms at least one cavity between the lid and the substrate.
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公开(公告)号：US20230341284A1
公开(公告)日：2023-10-26
申请号：US18137003
申请日：2023-04-20
发明人： Brian M. Wiseman
CPC分类号： G01L19/0663 , G01C9/34 , G01L13/00 , G01L19/0007
摘要： A system for mounting a differential pressure indication device for indicating a presence of a directional differential pressure between a first space and a second space separated from the first space by a barrier is provided. The system may include a base configured to be mounted against the barrier, where the base includes a receptacle configured to removably receive the pressure indication device. The system may include at least one mounting fastener configured to removably secure the differential pressure indication device within the receptacle. The system may include a pitch adjuster configured to secure the base to the barrier, where movement of the pitch adjuster is configured to adjust a spacing between a portion of the base and the barrier to adjust the orientation of the base with respect to pitch.
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公开(公告)号：US20230340763A1
公开(公告)日：2023-10-26
申请号：US18215225
申请日：2023-06-28
CPC分类号： E03B7/006 , G01L19/0007 , G01K1/024 , G01L19/086 , C02F1/008 , C02F1/70 , B08B9/0325 , C02F1/687 , B08B2209/032 , C02F2101/12
摘要： A fluid flushing system includes a sampling port comprising a sampling conduit configured to dispense a sample of a fluid in the fluid routing assembly; a valve configurable in an open valve configuration, wherein the fluid is permitted to flow through the fluid flushing system, and a closed valve configuration, wherein the fluid is prohibited from flowing through the fluid flushing system; and a backflow preventer disposed between the sampling port and the valve, the backflow preventer configured to allow the fluid to flow in a first direction through the fluid flushing system towards the valve and to prevent the fluid from flowing in an opposite second direction through the fluid flushing system towards the sampling port.
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公开(公告)号：US20230175501A1
公开(公告)日：2023-06-08
申请号：US17545951
申请日：2021-12-08
CPC分类号： F04B51/00 , E21B43/128 , F04B17/03 , G01K13/00 , G01L19/0007 , H01B17/20 , H01B17/26
摘要： A device for monitoring an electrical submersible pump having a motor includes an integrated temperature sensor and electrical feedthrough assembly having a probe body housing the temperature sensor, the electrical feedthrough assembly, and a high voltage insulator; an electronics assembly operably connected to the integrated temperature sensor and the electrical feedthrough assembly; and a pressure assembly operably connected to the electronics assembly.
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公开(公告)号：US10072999B2
公开(公告)日：2018-09-11
申请号：US15233964
申请日：2016-08-11
CPC分类号： G01L13/025 , G01L9/0054 , G01L9/0073 , G01L15/00 , G01L19/0007 , G01L19/143 , H05K999/99
摘要： An air pressure sensing system including a first sensing unit and a second sensing unit is provided. The first sensing unit includes a substrate, a diaphragm, and a supporting member. The substrate has a cavity connected with an exterior environment. The diaphragm is movably and deformably disposed at the substrate and suspended in the cavity. An electrostatic force is provided to the substrate and the diaphragm to move the diaphragm, such that a portion of the base, the supporting member and the diaphragm are contacted with each other and a closed space is formed therebetween in the cavity. The closed space and the exterior environment are divided by the diaphragm, and the diaphragm is deformed due to an air pressure difference between the closed space and the exterior environment. An air pressure sensing method is also provided.
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公开(公告)号：US20180216613A1
公开(公告)日：2018-08-02
申请号：US15745597
申请日：2015-09-04
发明人： Joseph A. Beisel
CPC分类号： F04B49/065 , F04B23/06 , F04B47/02 , F04B49/00 , F04B49/002 , F04B53/00 , F04B53/10 , F04B2201/0601 , F04B2205/03 , G01L19/00 , G01L19/0007
摘要： An analysis system may determine a discharge pressure or a suction pressure using a single measurement sensor coupled to a computing device. The measurement sensor may include a pressure sensor or a strain sensor. In some aspects, the pressure sensor may generate a pressure signal representing the total pressure in a chamber of the pressure pump. The computing device may apply an envelope filter to the pressure signal to determine the discharge or suction pressure in the chamber from the pressure signal. In other aspects, the strain sensor may generate a strain signal representing the strain in the chamber. The computing device may determine the discharge or suction portions of the strain signal and may correlate the portions with a predetermined internal pressure for the pressure pump to determine the discharge or suction pressure in the chamber.
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公开(公告)号：US20180100778A1
公开(公告)日：2018-04-12
申请号：US15725053
申请日：2017-10-04
CPC分类号： G01L19/0627 , G01L13/00 , G01L19/0007 , G01L19/04 , G01L19/0609 , G01L19/142
摘要： A method and structure which provide an ambient pressure measurement that is unaffected by wind and localized environmental conditions. A draft range pressure transmitter is enclosed inside an enclosure which is resistant to wind and other transient localize environmental conditions. A vent cap allows slow air movement through a wall of the enclosure and forms a still air chamber for the transmitter. The pressure inside the enclosure changes at the same rate as the barometric pressure but is unaffected by wind or wind gusts.
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