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公开(公告)号：US20230003303A1
公开(公告)日：2023-01-05
申请号：US17940370
申请日：2022-09-08
IPC分类号： F16J15/34 , F16J15/44 , F15B15/14 , F16J15/3296
摘要： An abradable seal includes an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.
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公开(公告)号：US10024754B2
公开(公告)日：2018-07-17
申请号：US15159085
申请日：2016-05-19
摘要： There is disclosed a method of monitoring the health of an abradable seal located on a piston of an actuator, the method comprising the steps of: (i) measuring an initial velocity of said actuator piston while said actuator is maintained in a passive condition at an initial time; (ii) operating said actuator; (iii) measuring a subsequent velocity of said actuator piston while said actuator is maintained in a passive condition at a subsequent time; (iv) repeating steps (ii)-(iii) and either: recording or outputting the measured subsequent velocities over time; or determining a health status of said actuator when said subsequent velocity has increased above a predetermined amount.
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公开(公告)号：US20160341318A1
公开(公告)日：2016-11-24
申请号：US15159108
申请日：2016-05-19
IPC分类号： F16J15/34
CPC分类号： F16J15/3496 , F15B15/1452 , F15B19/005 , F16J15/3296 , F16J15/445
摘要： An abradable seal is provided, comprising an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.
摘要翻译： 提供了一种可磨损的密封件，其包括外环布置和用于将所述外环布置压靠在相对的表面上的激励器，其中所述外环布置的最外表面限定所述可磨损密封件的密封表面; 其中所述外环装置构造成使得在第一操作周期之后，所述密封表面突然从具有相对较大表面积的过渡到具有相对较小的表面积，从而导致在所述密封面处的密封件内部渗漏的突然增加 过渡。
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公开(公告)号：US20200088301A1
公开(公告)日：2020-03-19
申请号：US16690184
申请日：2019-11-21
IPC分类号： F16J15/34 , F16J15/3296 , F15B15/14 , F16J15/44
摘要： An abradable seal includes an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.
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公开(公告)号：US10520095B2
公开(公告)日：2019-12-31
申请号：US15159108
申请日：2016-05-19
IPC分类号： F16J15/34 , F15B15/14 , F16J15/3296 , F16J15/44 , F15B19/00
摘要： An abradable seal is provided, comprising an outer ring arrangement and an energiser for urging said outer ring arrangement against an opposing surface, wherein an outermost surface of said outer ring arrangement defines a sealing surface of said abradable seal; wherein said outer ring arrangement is configured such that after a first period of operation said sealing surface suddenly transitions from having a relatively large surface area to having a relatively small surface area, so as to cause a sudden increase in internal leakage across the seal at said transition.
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公开(公告)号：US20160341628A1
公开(公告)日：2016-11-24
申请号：US15159085
申请日：2016-05-19
CPC分类号： G01M3/2869 , F15B15/1452 , F15B19/005 , F15B2211/6336 , F15B2211/864 , F15B2211/865 , F16J15/3296 , F16J15/3492 , F16J15/445
摘要： There is disclosed a method of monitoring the health of an abradable seal located on a piston of an actuator, the method comprising the steps of: (i) measuring an initial velocity of said actuator piston while said actuator is maintained in a passive condition at an initial time; (ii) operating said actuator; (iii) measuring a subsequent velocity of said actuator piston while said actuator is maintained in a passive condition at a subsequent time; (iv) repeating steps (ii)-(iii) and either: recording or outputting the measured subsequent velocities over time; or determining a health status of said actuator when said subsequent velocity has increased above a predetermined amount.
摘要翻译： 公开了一种监测位于致动器的活塞上的可磨损密封件的健康状况的方法，该方法包括以下步骤：（i）测量所述致动器活塞的初始速度，同时所述致动器在一个被动状态下保持在 初始时间 （ii）操作所述致动器; （iii）当所述致动器在随后的时间被保持在被动状态时，测量所述致动器活塞的后续速度; （iv）重复步骤（ii） - （iii），并且：随时间记录或输出所测量的后续速度; 或者当所述后续速度增加到高于预定量时确定所述致动器的健康状态。
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