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    ACOUSTICALLY-SENSITIVE FILTER FOULING TESTS
    1.
    发明公开
    ACOUSTICALLY-SENSITIVE FILTER FOULING TESTS 审中-公开

    公开(公告)号：US20240023273A1

    公开(公告)日：2024-01-18

    申请号：US17863543

    申请日：2022-07-13

    申请人： Dell Products L.P.

    发明人： Eric TUNKS ,  Donnie W. GERHART ,  Seth LAW

    IPC分类号： H05K7/20 ,  G01N15/08

    CPC分类号： H05K7/20209 ,  G01N15/0826 ,  G01N2015/084

    摘要： A method may include, during a filter fouling test of an air filter, determining if the air mover is operating below a first predetermined filter testing speed, in response to the air mover operating below the first predetermined filter testing speed, operating the air mover at the first predetermined filter testing speed and determining an indicator of filter degradation of the air filter responsive to the first predetermined filter testing speed, in response to the air mover operating above the first predetermined filter testing speed, operating the air mover at a second predetermined filter testing speed significantly greater than the first predetermined filter testing speed and determining the indicator of filter degradation of the air filter responsive to the second predetermined filter testing speed, and determining if the indicator of filter degradation is below a respective filter failure threshold.

    FILTER EFFICENCY OF A FLUID FILTER
    5.
    发明公开
    FILTER EFFICENCY OF A FLUID FILTER 审中-公开

    公开(公告)号：US20230277963A1

    公开(公告)日：2023-09-07

    申请号：US17973187

    申请日：2022-10-25

    申请人： IoT Diagnostics

    发明人： Rex Wetherill ,  Jeremy Drury ,  Jon Prescott

    IPC分类号： B01D35/143 ,  G01N15/08

    CPC分类号： B01D35/1435 ,  G01N15/0806 ,  G01N2015/084 ,  B01D2201/54

    摘要： Systems and methods determine a filter efficiency of a fluid filter. A characteristic of fluid flow of a fluid is monitored at a first point and at a second point on a flow path of a fluid filter. A particle absorption level of the fluid filter is determined that is a difference in the characteristic of the fluid flow at the first point and the second point. The particle absorption level of the fluid filter is at a particle absorption saturation level based on the difference in the characteristic of the fluid flow at the first point and the second point. The particle absorption saturation level is an indicator that the particles retained by the fluid filter is decreased and replacement of the fluid filter is required to increase the particles retained by the fluid filter to be above the particle absorption saturation level.

    LIFETIME PREDICTION DEVICE AND MACHINE TOOL
    6.
    发明公开
    LIFETIME PREDICTION DEVICE AND MACHINE TOOL 审中-公开

    公开(公告)号：US20230264282A1

    公开(公告)日：2023-08-24

    申请号：US18028152

    申请日：2021-09-22

    申请人： FANUC CORPORATION

    发明人： Kousuke OOKUBO ,  Masahide YAMAOKA ,  Meguru YAMAGUCHI

    IPC分类号： B23H7/36 ,  G01N15/08

    CPC分类号： B23H7/36 ,  G01N15/0826 ,  G01N2015/084

    摘要： Provided is a lifetime prediction device and a machine tool that enable simple prediction of the lifetime of a filter while suppressing a prediction error with respect to a true value. A lifetime prediction device (88) according to one embodiment is provided with: a pressure acquisition unit (90) that acquires in time series a pressure value of a liquid applied to a filter (52); a time acquisition unit (92) that acquires processing time of a designated process; a calculation unit (94) that calculates the amount of pressure change during the processing time; and a prediction unit (96) that predicts a lifetime period before an upper limit value of the pressure of the liquid applied to the filter (52) is reached, by using the pressure value, the processing time, and the pressure change amount at the time of completion of the designated process.