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公开(公告)号：US20230184288A1
公开(公告)日：2023-06-15
申请号：US17923565
申请日：2021-04-28
发明人： Tadatsugu IMURA , Ayano TANISHIMA , Iwa OU , Shogo FUKUDA , Kenta UCHIDA
CPC分类号： F16C17/102 , F16C33/107
摘要： An annular sliding component disposed at a relatively rotating position of a rotating machine and sliding relative to the other sliding component has a sliding surface provided with a dynamic pressure generation groove which includes a communication portion communicating with an external space and a dead-end portion on a relative rotation downstream of the communication portion. The sliding component includes a guide configured to guide a fluid existing in the external space on an upstream side of the communication portion in a guide direction different from a direction in which a peripheral surface of the sliding component formed on the downstream side of the communication portion and facing toward a side of the external space extends.
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公开(公告)号：US20220099191A1
公开(公告)日：2022-03-31
申请号：US17420660
申请日：2019-12-06
发明人： Hiroshi SUZUKI , Yuichiro TOKUNAGA , Yuta NEGISHI , Hiroki INOUE , Shogo FUKUDA , Wataru KIMURA
摘要： A sliding surface of the sliding component is provided with a communication groove having a start point communicating with a sealed fluid side in a radial direction, a storage groove communicating with the communication groove, and a plurality of dynamic pressure generation grooves generating a dynamic pressure at end points thereof upon a run of the rotating machine and the dynamic pressure generation grooves are located on a side of the sealed fluid side space with respect to the storage groove in the radial direction.
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公开(公告)号：US20240360872A1
公开(公告)日：2024-10-31
申请号：US18287867
申请日：2022-03-22
发明人： Shogo FUKUDA , Tadatsugu IMURA , Iwa OU , Hiroshi SUZUKI , Kenta UCHIDA , Hiroki AIZAWA
CPC分类号： F16C33/107 , F16J15/3416
摘要： Provided is a sliding component capable of maintaining high lubricity over a long period of time by efficiently using a liquid supplied between sliding surfaces. In a pair of sliding components disposed at a relatively rotating position to face each other when a rotating machine is driven, a sliding surface of the sliding component is formed on an outer peripheral edge portion and includes an opening portion extending in a circumferential direction and a fluid supply groove communicating with the opening portion and opening to a peripheral edge of the sliding surface on the side of the opening portion.
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公开(公告)号：US20230383845A1
公开(公告)日：2023-11-30
申请号：US18027600
申请日：2021-09-24
IPC分类号： F16J15/34
CPC分类号： F16J15/3416
摘要： A sliding component capable of improving lubricity between sliding surfaces is provided. In a sliding component 10 which is disposed at a relatively rotating position of a rotary machine and relatively slides on a counter sliding component 20, a sliding surface 11 of the sliding component 10 is provided with a plurality of protrusions 30. A groove 14 is formed between the adjacent protrusions 30 so as to be continuous from a sealing side S1 to a leakage side S2.
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公开(公告)号：US20230175587A1
公开(公告)日：2023-06-08
申请号：US17913153
申请日：2021-03-30
发明人： Tadatsugu IMURA , Iwa OU , Shogo FUKUDA , Kenta UCHIDA
CPC分类号： F16J15/3412 , F16C33/74 , F16J15/3424
摘要： In a sliding component formed in an annular shape and disposed at a relatively rotating position of a rotating machine and sliding relative to an opposite sliding component, a sliding surface of the sliding component is provided with a conduction groove communicating with an outer space and a dynamic pressure generation groove communicating with the conduction groove, extending in a circumferential direction, and having a closed terminating end portion and at least a part of a bottom portion of the conduction groove is provided with an inclined surface inclined with respect to a radial direction.
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公开(公告)号：US20240309910A1
公开(公告)日：2024-09-19
申请号：US18575663
申请日：2022-06-28
发明人： Shogo FUKUDA , Tadatsugu IMURA , Iwa OU , Hiroshi SUZUKI , Kenta UCHIDA , Hiroki AIZAWA
IPC分类号： F16C17/02
CPC分类号： F16C17/026
摘要： There are provided sliding components that allow sliding surfaces to smoothly slide against each other regardless of whether a relative rotation direction is a forward rotation or a reverse rotation. The sliding components and include: a pair of sliding surfaces and disposed to face each other at a location where a relative rotation takes place when a rotating machine is driven. The sliding surface is provided with a first dynamic pressure generating groove communicating with a radially outer-side space and extending in one circumferential direction, a second dynamic pressure generating groove extending in the opposed circumferential direction, and a conduit groove communicating with the space. The conduit groove includes an annular groove and a communication groove communicating between the annular groove and the space. The second dynamic pressure generating groove is disposed closer to the space than the annular groove, and communicates with the annular groove.
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公开(公告)号：US20240209891A1
公开(公告)日：2024-06-27
申请号：US18288369
申请日：2022-03-22
发明人： Kenta UCHIDA , Tadatsugu IMURA , Iwa OU , Shogo FUKUDA , Hiroshi SUZUKI
IPC分类号： F16C17/02
CPC分类号： F16C17/026
摘要： A sliding component which is disposed at a relatively rotating position of a rotating machine, slides relatively to a counterpart sliding component, and has a dynamic pressure generation groove provided on a sliding surface to have a starting end portion and a terminating end portion. The dynamic pressure generation groove includes a first groove portion extending circumferentially on the side of the starting end portion and a second groove portion extending circumferentially on the side of the terminating end portion. The first groove portion and the second groove portion communicate with each other through an inclined groove portion obliquely extending from the first groove portion toward a downstream side in a relative rotation direction.
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