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1. 发明授权

US11248707B2 Sliding component 有权
公开(公告)号：US11248707B2
公开(公告)日：2022-02-15
申请号：US16610855
申请日：2018-05-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Tadatsugu Imura , Ayano Tanishima , Hideyuki Inoue , Yuichiro Tokunaga , Takeshi Hosoe , Yuta Negishi , Yuki Maetani
IPC分类号： F16J15/34 , F16C33/10 , F16C33/74
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.

2. 发明授权

US11143232B2 Sliding component 有权
公开(公告)号：US11143232B2
公开(公告)日：2021-10-12
申请号：US16349209
申请日：2017-11-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuta Negishi , Sayaka Kosugi , Hiroki Inoue , Hideyuki Inoue , Takeshi Hosoe , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16C17/04 , F16C33/10 , F16C33/74
摘要： In an exemplary embodiment of a sliding component, a sliding face S is provided with a first fluid-side negative pressure generation mechanism 12 including a first negative pressure generation groove 13, and is provided with a second fluid-side negative pressure generation mechanism 14 including second negative pressure generation grooves 15 located on the second-fluid side of the first fluid-side negative pressure generation mechanism 12, and is further provided with a dynamic pressure generation mechanism 10 including dynamic pressure generation grooves 11 on at least one of the first-fluid side and the second-fluid side of the first fluid-side negative pressure generation mechanism 12 and the second fluid-side negative pressure generation mechanism 14, and the first negative pressure generation groove 13 is isolated from the second-fluid side by a land R, and the second negative pressure generation grooves 15 are isolated from the first-fluid side by a land R.

3. 发明授权

US11009072B2 Sliding component 有权
公开(公告)号：US11009072B2
公开(公告)日：2021-05-18
申请号：US16480278
申请日：2018-01-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Wataru Kimura , Yuichiro Tokunaga , Yuta Negishi , Takeshi Hosoe , Hideyuki Inoue , Tetsuya Iguchi
IPC分类号： F16J15/34 , F16C33/10 , F16J15/40
摘要： In an exemplary embodiment, a sliding component includes a pair of sliding parts 4 and 7 sliding relatively to each other and having sliding faces S formed radially for sealing a liquid or a misty fluid as a sealed fluid against leakage. One sliding part is a stationary-side seal ring 7, and the other sliding part is a rotating-side seal ring 4. At least one of the sliding faces S is provided with positive pressure generation mechanisms 11 having positive pressure generation grooves 12 configured to communicate with a circumferential edge of the sliding face S on the sealed-fluid side and not to communicate with a circumferential edge on the leakage side, and discharge grooves 10 disposed at an angle such that upstream ends are located on the leakage side and downstream ends are located on the sealed-fluid side.

4. 发明授权

US10883603B2 Sliding component 有权
公开(公告)号：US10883603B2
公开(公告)日：2021-01-05
申请号：US15842855
申请日：2017-12-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16J15/16
摘要： In an embodiment, a sliding part is provided with a mechanism to generate dynamic pressure by means of relative sliding of a pair of sealing faces of the sliding part, which is characterized in that one sealing face is provided with a land 10 for generating dynamic pressure facing the high-pressure fluid side and a seal area 11 facing the low-pressure fluid side, wherein the land 10 and seal area 11 are positioned away from each other in the radial direction and the areas of the sealing face other than the land 10 and seal area 11 are formed lower than these areas to constitute fluid communication paths 12. The fluid entering the grooves for generating dynamic pressure formed on the sealing face is allowed to circulate.

5. 发明授权

US10781924B2 Sliding component 有权
公开(公告)号：US10781924B2
公开(公告)日：2020-09-22
申请号：US15842859
申请日：2017-12-14
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi , Yuichiro Tokunaga
IPC分类号： F16J15/34 , F16J15/16
摘要： In an embodiment, a sliding part is provided with a mechanism to generate dynamic pressure by means of relative sliding of a pair of sealing faces of the sliding part, which is characterized in that one sealing face is provided with a land 10 for generating dynamic pressure facing the high-pressure fluid side and a seal area 11 facing the low-pressure fluid side, wherein the land 10 and seal area 11 are positioned away from each other in the radial direction and the areas of the sealing face other than the land 10 and seal area 11 are formed lower than these areas to constitute fluid communication paths 12. The fluid entering the grooves for generating dynamic pressure formed on the sealing face is allowed to circulate.

6. 发明授权

US10344867B2 Sliding component 有权
公开(公告)号：US10344867B2
公开(公告)日：2019-07-09
申请号：US15505571
申请日：2015-08-26
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Masatoshi Itadani , Kazumasa Sungawa , Yuichiro Tokunaga , Hideyuki Inoue , Takeshi Hosoe , Ryoma Yamakawa , Yuta Negishi , Kenji Kiryu , Keiichi Chiba , Akira Yoshino , Hiroshi Kubota
IPC分类号： F16J15/34 , F04D29/12
摘要： In an embodiments, a slide component includes a pair of slide parts that relatively slide on each other, one of the slide parts being provided in a sealing face with fluid circulation grooves 10 that communicate with a high-pressure fluid side via inlet portions and outlet portions and are separated from a low-pressure fluid side by land portions, the other of the slide parts being circumferentially provided in a sealing face with a plurality of interference grooves 15, 16, 17, 20 for producing pressure variations in a fluid in the fluid circulation grooves 10, adjacent ones of the interference grooves 15, 16, 17, 20 being set to have different shapes.

7. 发明申请

US20170227056A1 SLIDING PARTS 审中-公开
公开(公告)号：US20170227056A1
公开(公告)日：2017-08-10
申请号：US15483915
申请日：2017-04-10
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Yuta Negishi , Takeshi Hosoe , Yuuichiro Tokunaga
IPC分类号： F16C33/74 , F16J15/34
CPC分类号： F16C33/74 , F16C17/02 , F16C33/107 , F16C2240/44 , F16J15/3412 , F16J15/3424
摘要： By randomly arranging dimples provided on a sealing face, a sliding characteristic is improved in a wide range of a bearing characteristic number on the sealing face. A pair of sliding parts in which a plurality of dimples is arranged on at least one of sealing faces that relatively slide on each other is characterized in that each of the plurality of dimples is provided independently from the other dimples, and arranged in such a manner that the plurality of dimples having different opening diameters is randomly distributed.

8. 发明申请

US20150084286A1 SLIDING COMPONENT 有权
标题翻译：滑动组件
公开(公告)号：US20150084286A1
公开(公告)日：2015-03-26
申请号：US14385941
申请日：2013-05-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hideyuki Inoue , Takeshi Hosoe , Yuta Negishi
IPC分类号： F16J15/34
CPC分类号： F16J15/3424 , F16C33/107 , F16C33/743 , F16C33/763 , F16C33/7823 , F16C2240/42 , F16C2240/46 , F16C2240/54
摘要： A sliding component is characterized in that, on one sealing face of a pair of sliding parts that slide relative to each other, multiple positive pressure-generating mechanisms that include extremely shallow parallel grooves running roughly in parallel with the sealing face and having submicron-level height differences are provided independently in the circumferential direction, and that extremely shallow thin grooves are formed on the sealing face on the low-pressure fluid side of the extremely shallow parallel grooves, wherein the extremely shallow parallel grooves communicate with the high-pressure fluid side, and the extremely shallow thin grooves communicate with the extremely shallow parallel grooves, but are isolated from the low-pressure fluid side by a seal area, thereby reducing a leakage rate of sealed fluid and significantly improving lubrication characteristics at startup or stop at the same time.
摘要翻译：滑动部件的特征在于，在相对于彼此滑动的一对滑动部件的一个密封面上，具有多个正压力产生机构，其包括与密封面大致平行延伸的极浅的平行凹槽，并具有亚微米级在圆周方向上独立地设置高度差，在极浅的平行槽的低压流体侧的密封面上形成极浅的细槽，其中极浅的平行槽与高压流体侧，并且极浅的细槽与极浅的平行槽连通，但是通过密封区域与低压流体侧隔离，从而降低了密封流体的泄漏速率并显着地提高了在同一时刻起动或停止时的润滑特性时间。

9. 发明授权

US10655736B2 Sliding component 有权
公开(公告)号：US10655736B2
公开(公告)日：2020-05-19
申请号：US15739973
申请日：2016-06-23
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Masatoshi Itadani , Kazumasa Sunagawa , Yuichiro Tokunaga , Hideyuki Inoue , Takeshi Hosoe , Ryoma Yamakawa , Yuta Negishi , Kenji Kiryu , Keiichi Chiba , Akira Yoshino , Hiroshi Kubota
IPC分类号： F16J15/34 , F04D29/12 , F16C33/74 , F16C33/78 , F16J15/16
摘要： In an embodiment, in a sliding component, a sliding face of a stationary-side seal ring 6 has a fluid circulation groove 10 communicating with a high-pressure fluid side via an entrance portion 10a and an exit portion 10b. A rotating-side seal ring 5 has a larger outer diameter and a smaller inner diameter than the seal ring 6. A groove 15 into which a claw is loosely fitted is provided on an outer periphery of the seal ring 5. A width of the groove 15 is smaller than a distance between the portion 10a and the 10b in the circumferential direction. WMR/WSR is set within a range of 0.75

10. 发明授权

US10598286B2 Slide component 有权
公开(公告)号：US10598286B2
公开(公告)日：2020-03-24
申请号：US15573113
申请日：2016-05-13
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuichiro Tokunaga , Hideyuki Inoue , Wataru Kimura , Tetsuya Iguchi , Takeshi Hosoe , Hidetoshi Kasahara , Takafumi Ota , Keiichi Chiba , Masatoshi Itadani , Hikaru Katori
IPC分类号： F16J15/34 , F02B39/00 , F16J15/08 , F16J15/40
摘要： In an embodiments, in a sealing face of at least one slide part of a pair of slide parts, a dynamic pressure generation groove 10 is provided so as to be separated not to communicate with a sealed fluid side and a leakage side by land portions on both sealing faces, between an end 10a on the leakage side of the dynamic pressure generation groove 10 and the leakage side, a fluid introduction groove 11 which communicates the dynamic pressure generation groove 10 and the leakage side is provided, and the cross-sectional area of the fluid introduction groove 11 is set smaller than the cross-sectional area of the dynamic pressure generation groove 10. The sealing faces are subjected to fluid lubrication and low friction in a steady operation, and leakage of the sealed fluid and entrance of dust into the sealing faces are suppressed.

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