公开(公告)号：US20240361268A1

公开(公告)日：2024-10-31

申请号：US18635250

申请日：2024-04-15

申请人： NIPPON PILLAR PACKING CO., LTD

发明人： Kentaro WATANABE ,  Akira NAKATSU ,  Yusuke NATSUHARA ,  Yusuke TOKUDA

IPC分类号： G01N27/06 ,  G01N27/04 ,  G01N33/28

CPC分类号： G01N27/06 ,  G01N27/046 ,  G01N33/2888

摘要： Provided are an oil condition determination system and an oil condition determination method that are capable of continuously determining the oil condition when oil is partially replaced or oil is added. An oil condition determination system includes a measurement unit and a determination unit. The measurement unit periodically measures a resistance value of oil. The determination unit periodically determines a condition of the oil based on the resistance value, stores a local maximum value of the resistance value, determines that the condition of the oil has changed when a difference between the local maximum value and the resistance value becomes greater than or equal to a first threshold value, and initializes the local maximum value and updates the first threshold value when the amount of change in the resistance value per unit time becomes greater than or equal to a second threshold value.

公开(公告)号：US20240310354A1

公开(公告)日：2024-09-19

申请号：US18565298

申请日：2023-06-02

申请人： NSK LTD.

发明人： Takenobu INABA ,  Keisuke YOKOYAMA ,  Shunsuke IWASE

IPC分类号： G01N33/28 ,  G01N1/38 ,  G01N21/25 ,  G06T7/00 ,  G06T7/90

CPC分类号： G01N33/2888 ,  G01N1/38 ,  G01N21/255 ,  G06T7/0002 ,  G06T7/90 ,  G06T2207/10024

摘要： Provided is a grease deterioration detecting method which can detect deterioration of grease and in which the amount of grease necessary for detecting deterioration is small. The grease deterioration detecting method includes a dilution step of diluting grease with a diluent to obtain diluted grease, and a measurement step of measuring a color of the diluted grease with a sensor.

公开(公告)号：US12085556B2

公开(公告)日：2024-09-10

申请号：US17832972

申请日：2022-06-06

申请人： RTX Corporation

发明人： Sheridon Everette Haye ,  Edward Thomas Rocco

IPC分类号： G01N33/28 ,  F01D25/18 ,  F01M1/18 ,  F16N29/00 ,  G01N15/06 ,  F16N39/06 ,  G01N15/00

CPC分类号： G01N33/2888 ,  F01D25/18 ,  F01M1/18 ,  F16N29/00 ,  G01N15/0656 ,  G01N33/2858 ,  F05D2220/32 ,  F05D2260/83 ,  F05D2260/98 ,  F16N39/06 ,  F16N2200/04 ,  F16N2210/02 ,  G01N2015/0053

摘要： An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.

公开(公告)号：US12005451B2

公开(公告)日：2024-06-11

申请号：US17256348

申请日：2019-06-28

申请人： RAB MICROFLUIDICS RESEARCH AND DEVELOPMENT COMPANY LIMITED

发明人： Oluwarotimi Alabi ,  Surakat Kudehunbu ,  Barry James Warden ,  Stephen McIntosh

IPC分类号： F01M11/10 ,  B01L3/00 ,  G01J3/10 ,  G01N33/28

CPC分类号： B01L3/502753 ,  F01M11/10 ,  G01J3/10 ,  G01N33/2858 ,  G01N33/2888 ,  B01L2300/0681 ,  F01M2011/1413 ,  F01M2011/144

摘要： The invention provides a microfluidic system for monitoring the condition of lubricating oil. The microfluidic system comprises a microfluidic device with at least one microchannel (40) configured to allow a sample of lubricating oil (52a) to pass therethrough as a laminar flow. The device has at least one separating device (41) configured to selectively separate at least one component (54b) from the lubricating oil (52a) in the fluid flow. The microfluidic system also comprises a detector device (20, 22) configured to detect the presence and/or measure at least one property of the at least one component passing through the microfluidic device after separation in the microchannel (40).

公开(公告)号：US20240133860A1

公开(公告)日：2024-04-25

申请号：US18481410

申请日：2023-10-05

申请人： Aktiebolaget SKF

发明人： Xing YI ,  Defeng LANG ,  Yu Xin ZHOU

IPC分类号： G01N33/28

CPC分类号： G01N33/2888 ,  F16C2233/00

摘要： The present disclosure provides a system for detecting the contamination condition of lubricating grease of a mechanical component. The system comprises a radio frequency signal generator, a sensor, a switch assembly and a radio frequency signal analyzer. The radio frequency signal generator generates a radio frequency signal with a frequency higher than 1.0 GHz. The sensor contacts lubricating grease to be sensed in the mechanical component. The switch assembly switches between a first mode, in which a radio frequency signal is transmitted through a first transmission path, thereby providing a first feedback signal for the radio frequency signal analyzer, and a second mode in which the radio frequency signal is transmitted through a second transmission path, thereby providing a second feedback signal for the radio frequency signal analyzer. The radio frequency signal analyzer analyzes the first and second feedback signals to detect the contamination condition of lubricating grease.

公开(公告)号：US20240133859A1

公开(公告)日：2024-04-25

申请号：US18480346

申请日：2023-10-03

申请人： ExxonMobil Technology and Engineering Company

发明人： Andrew SATTERFIELD

IPC分类号： G01N33/28 ,  G01N23/223

CPC分类号： G01N33/2888 ,  G01N23/223 ,  G01N2223/076 ,  G01N2223/637

摘要： A method of analyzing a lubricating oil may include: measuring a first concentration of components in a lubricating oil prior to introduction into a cylinder in a two-stroke engine using x-ray fluorescence, the components comprising: sulfur and total calcium; collecting a scrape-down lubricating oil that corresponds to the lubricating oil after having been passed through the cylinder during fuel combustion of a fuel comprising 0.5 wt % or less sulfur; measuring a second concentration of the components in the scrape-down lubricating oil using the x-ray fluorescence; and calculating an amount of acid neutralized during combustion based on the first and second concentration of the components. Based on said analysis a change to a property of the scrape-down lubricating oil and/or changing a feed rate of the lubricating oil into the cylinder based on the amount of acid neutralized may be implemented.

公开(公告)号：US11953491B2

公开(公告)日：2024-04-09

申请号：US17285501

申请日：2019-10-08

申请人： KELK Ltd.

发明人： Kazuji Sasaki ,  Tomonori Murata ,  Daisuke Goto

IPC分类号： G01N21/59 ,  G01N21/94 ,  G01N33/28 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q13/10

CPC分类号： G01N33/2888 ,  G01N21/59 ,  G01N21/94 ,  H01Q1/2208 ,  H01Q1/38 ,  H01Q13/10

摘要： A detection device that is capable of being attached to a through hole includes a main body portion, a detection portion, a cover portion, an insulation portion, and an oscillation portion. The main body portion has an insertion portion and a head portion. The detection portion is arranged in the insertion portion and detects the state of a fluid. The cover portion is arranged so as to form a gap with the head portion. The insulating portion has a lateral wall having a cylindrical shape. An oscillation portion is accommodated inside the insulation portion, and performs a wireless output of a detection result of the detection portion by using the head portion, the cover portion and the gap as a slot antenna.

公开(公告)号：US11828743B2

公开(公告)日：2023-11-28

申请号：US17969655

申请日：2022-10-19

申请人： Cummins Inc.

发明人： Travis A. Anderson ,  Neha Chandrachud ,  Renae Christianson ,  Lorraine H. Myers ,  Pallav Pathak ,  Patrick J. Shook

IPC分类号： F01M11/10 ,  G01N33/28

CPC分类号： G01N33/2858 ,  F01M11/10 ,  G01N33/2888 ,  F01M2011/144 ,  F01M2011/1446 ,  F01M2011/1453 ,  F01M2011/1486 ,  F16N2250/32

摘要： A controller includes at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to: perform operations comprising: determining a concentration of a plurality of wear metal particles in a lubricant for an engine system; determining a filtered concentration of the plurality of wear metal particles using a baseline concentration of the plurality of wear metal particles; setting a diagnostic threshold based on the filtered concentration of the wear metal particles; and, responsive to determining that the concentration of the wear metal particles exceeds the diagnostic threshold, providing a notification.

公开(公告)号：US11674946B2

公开(公告)日：2023-06-13

申请号：US17210017

申请日：2021-03-23

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Koichi Okuda ,  Atsushi Tabata ,  Kota Fujii ,  Ken Imamura

IPC分类号： G01N33/28 ,  G07C5/04

CPC分类号： G01N33/2888 ,  G07C5/04

摘要： An oil condition estimation apparatus to be applied to a vehicle in which oil is agitated by a rotator includes a storage device and an execution device. The storage device stores mapping data for defining mapping. The mapping includes, as input variables, a speed variable indicating a rotation speed of the rotator, and a pressure variable indicating a pressure of the oil, and includes, as an output variable, an air bubble variable related to air bubbles contained in the oil. The execution device executes an acquisition process for acquiring values of the input variables, and a calculation process for calculating a value of the output variable by inputting, to the mapping, the values of the input variables acquired through the acquisition process.

公开(公告)号：US20190227007A1

公开(公告)日：2019-07-25

申请号：US16306629

申请日：2017-06-02

申请人： Wika Tech S.A.S.

发明人： Yann Troadec ,  Raphaël Juston ,  François Chaudoreille

IPC分类号： G01N23/223 ,  G01N33/28 ,  G01N33/30

CPC分类号： G01N23/223 ,  G01N33/2858 ,  G01N33/2888 ,  G01N33/30

摘要： A sensor for determining the overall content of a pre-determined chemical element in a liquid body uses X-ray fluorescence technology and includes an X-ray source, an X-ray detector, and a cell intended to contain a sample of lubricant to be analyzed, and is provided with a wall forming a window for passage of X-rays, the wall of the sensor cell being produced from polyethylene terephthalate, the cell also including a casing defining an internal volume for receiving the sample. A procedure for calibrating the sensor, and an automated method for online monitoring are also described and claimed.