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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：US20200158162A1
公开(公告)日：2020-05-21
申请号：US16610844
申请日：2018-05-15
发明人： Tadatsugu IMURA , Ayano TANISHIMA , Hideyuki INOUE , Yuichiro TOKUNAGA , Takeshi HOSOE , Yuta NEGISHI , Yuki MAETANI
摘要： In an exemplary embodiment, a pair of sliding components has annular sliding surfaces that slide with respect to each other in which plural dimples 10 are arranged on at least sliding surface S on one side, wherein the plural dimples 10 are randomly arranged to form a random dimple group 11, and the dimples 10 are arranged in a manner that a radial-direction coordinate average of centers of the dimples 10 of the random dimple group 11 is smaller than a sliding radius 15 of the sliding surface S. The sliding components are excellent in a sealing property by improving a characteristic of suctioning from the leakage side to sliding surfaces.
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公开(公告)号：US20200378501A1
公开(公告)日：2020-12-03
申请号：US16607322
申请日：2018-05-12
发明人： Ayano TANISHIMA , Tadatsugu IMURA , Hideyuki INOUE , Yuichiro TOKUNAGA , Takeshi HOSOE , Yuta NEGISHI , Yuki MAETANI
摘要： In an exemplary embodiment, a pair of sliding components has sliding surfaces that slide with respect to each other, wherein at least the sliding surface S on one side includes a random dimple group 11 in which plural dimples 10 are randomly arranged, and at least one land portion 15 that partitions radial portions 11a, 11b of the random dimple group 11. According to the configurations, a lubricating effect and a sealing effect can be improved.
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公开(公告)号：US20200224768A1
公开(公告)日：2020-07-16
申请号：US16649074
申请日：2018-10-02
发明人： Tadatsugu IMURA , Hideyuki INOUE , Yuichiro TOKUNAGA , Yuta NEGISHI , Yuki MAETANI , Ayano TANISHIMA
IPC分类号： F16J15/34
摘要： A pair of sliding components have sliding faces (S) that slide with respect to each other, wherein at least one of the sliding faces (S) includes at least one dimple group (11) constituted by plural dimples (12), and each dimple group (11) includes at least one opening portion (11a) that is arranged in the one of the sliding faces (S) and radially open to the outside the one of the sliding faces (S). In the sliding components, a dynamic pressure generation mechanism can easily be formed, and a lubricating performance and a sealing performance can improve.
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公开(公告)号：US20210054934A1
公开(公告)日：2021-02-25
申请号：US16610855
申请日：2018-05-15
发明人： Tadatsugu IMURA , Ayano TANISHIMA , Hideyuki INOUE , Yuichiro TOKUNAGA , Takeshi HOSOE , Yuta NEGISHI , Yuki MAETANI
摘要： In an exemplary embodiment, a pair of sliding components has sliding surfaces that slide with respect to each other, wherein at least one of the sliding surfaces, sliding surface S, includes a random dimple group 11 in which plural dimples 10 are randomly arranged, and the random dimple group 11 is arranged to be biased in the circumferential direction of the sliding surface S. The sliding components have an improved lubricating property and reliability of a sealing property.
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公开(公告)号：US20200224722A1
公开(公告)日：2020-07-16
申请号：US16626838
申请日：2018-07-12
发明人： Tadatsugu IMURA , Ayano TANISHIMA , Hideyuki INOUE , Yuichiro TOKUNAGA , Yuta NEGISHI , Yuki MAETANI
摘要： A pair of sliding parts has sliding faces S that slide with respect to each other in which at least the sliding face S on one side includes dimple groups 20 formed by arranging plural dimples 10, and the dimples 10 are arranged in such a manner that a radial-direction coordinate average of center coordinates of the dimples 10 of the dimple group 20 is smaller than a sliding radius Rm of the sliding face S. The sliding parts can improve a characteristic of suctioning from the leakage side to sliding faces, thereby providing excellent sealing property.
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