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公开(公告)号：US20180010690A1
公开(公告)日：2018-01-11
申请号：US15544496
申请日：2016-01-26
CPC分类号： F16J15/164 , F04D29/08 , F04D29/10 , F16J15/3412 , F16J15/3424 , F16J15/3496
摘要： In an embodiment, in a slide component, a negative pressure generation mechanism 12 that generates negative pressure by relative rotational sliding of a stationary-side seal ring 5 and a rotating-side seal ring 3 is provided on a sealing face of one of the stationary-side seal ring 5 and the rotating-side seal ring 3, and at least the surface of the negative pressure generation mechanism 12 is covered by an adhesion-resistant material film 15. With the configuration, deposition of precipitates on a negative pressure portion of a sealing face can be inhibited.
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公开(公告)号：US20180106374A1
公开(公告)日：2018-04-19
申请号：US15505571
申请日：2015-08-26
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
CPC分类号： F16J15/342 , F04D29/128 , F16J15/34 , F16J15/3412 , F16J15/3448
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.
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公开(公告)号：US20180106378A1
公开(公告)日：2018-04-19
申请号：US15505580
申请日：2015-08-26
发明人： Masatoshi ITADANI , Kazumasa SUNAGAWA , Keiichi CHIBA , Kenji KIRYU , Akira YOSHINO , Takashi SHINOMIYA
IPC分类号： F16J15/34
CPC分类号： F16J15/348 , F04D29/043 , F04D29/12 , F04D29/126 , F16J15/34 , F16J15/36 , F16J15/38
摘要： In an embodiment, a rotating-side seal ring 5 is formed in a substantially pentagonal shape in cross section having a cut portion 5a at which a corner portion on the inside-diameter side and the side opposite to a sealing face is cut in a tapered shape. A cup gasket 7 is fitted over the inside-diameter side and the back-surface side, and is formed in a substantially L shape in cross section including an axial portion 7a in contact with the inside-diameter side and an inner cylindrical portion of the sleeve 2 and a radial portion 7b in contact with the back-surface side and a radial portion of the sleeve 2, and has a corner portion 7c facing the cut portion 5a formed in a shape along it. The thickness of the corner portion 7c is set larger than a gap between the inside-diameter side and the inner cylindrical portion.
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公开(公告)号：US20150377297A1
公开(公告)日：2015-12-31
申请号：US14439192
申请日：2014-03-11
CPC分类号： F16C33/748 , F16C17/026 , F16J15/3412 , F16J15/3416 , F16J15/342
摘要： A positive pressure generation mechanism includes a positive pressure generation groove provided on a high pressure side of one of sealing faces of a pair of sliding parts including annular bodies that relatively slide on each other, a negative pressure generation mechanism including a negative pressure generation groove provided on a low pressure side, a pressure release groove provided between the positive pressure generation groove and the negative pressure generation groove, and a radial groove that provides communication between the positive pressure generation groove.
摘要翻译： 正压力产生机构包括：正压生成槽，设置在包括相对滑动的环状体的一对滑动部的一个密封面的高压侧;负压产生机构，包括负压产生槽， 在低压侧，设置在正压力产生槽和负压产生槽之间的压力释放槽以及提供正压力产生槽之间的连通的径向槽。
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公开(公告)号：US20180187784A1
公开(公告)日：2018-07-05
申请号：US15739973
申请日：2016-06-23
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
CPC分类号： F16J15/3416 , F04D29/122 , F05D2240/55 , F16C33/743 , F16C33/7843 , F16J15/162 , F16J15/3412 , F16J15/3464
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
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公开(公告)号：US20180112711A1
公开(公告)日：2018-04-26
申请号：US15566169
申请日：2016-04-07
发明人： Masatoshi ITADANI , Kazumasa SUNAGAWA , Tetsuzo OKADA , Keiichi CHIBA , Kenji KIRYU , Akiko KOGA
CPC分类号： F16C33/043 , C23C16/26 , C23C16/27 , F16C17/04 , F16C33/24 , F16C33/74 , F16C2206/04 , F16J15/34 , F16J15/3496 , F16J15/36 , F16J15/363
摘要： In an embodiment, a slide component includes a circular ring-shaped stationary-side seal ring 5 fixed to a stationary side and a circular ring-shaped rotating-side seal ring 3 rotating with a rotating shaft 1, and relatively rotates respective opposed sliding faces S of the stationary-side seal ring 5 and the rotating-side seal ring 3, thereby sealing a sealed fluid present on one side in a radial direction of the sliding face relatively rotating and sliding, wherein the sealed fluid is a silicate containing fluid; and on at least either one sliding face of the stationary-side seal ring 5 and the rotating-side seal ring 3, an amorphous carbon film 10 formed by using hydrocarbon gas not containing organosilicon compound gas in a plasma CVD method is laminated. The slide component can seal a silicate containing sealed fluid to which silicate is added.
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公开(公告)号：US20170002930A1
公开(公告)日：2017-01-05
申请号：US15100272
申请日：2014-12-05
CPC分类号： F16J15/3412 , F16C17/045 , F16C33/72 , F16C33/743 , F16C2360/44 , F16J15/34 , F16J15/342
摘要： Sliding parts of a pair of annular bodies include sealing faces that relatively slide on each other. A reversed Rayleigh step mechanism serving as a negative pressure generation mechanism is provided in at least one of the sealing faces, and a negative pressure generation groove that forms the reversed Rayleigh step mechanism is provided in an arc shape along the circumferential direction of the sealing face so as to be isolated from a high pressure fluid side and a low pressure fluid side by a land section.
摘要翻译： 一对环形体的滑动部分包括彼此相对滑动的密封面。 在至少一个密封面上设置有用作负压产生机构的反转瑞利阶梯机构，并且形成反转的瑞利阶梯机构的负压产生槽沿密封面的圆周方向设置为弧形 以便通过陆部与高压流体侧和低压流体侧隔离。
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公开(公告)号：US20200182356A1
公开(公告)日：2020-06-11
申请号：US16341413
申请日：2017-09-29
发明人： Masatoshi ITADANI , Kazumasa SUNAGAWA , Tetsuzo OKADA , Keiichi CHIBA , Kenji KIRYU , Tadahiro KIMURA , Akiko KOGA
IPC分类号： F16J15/3284 , F16J15/00
摘要： In an exemplary embodiment, a sliding component includes an annular stationary side seal ring 5 fixed to the stationary side and an annular rotating side seal ring 3 to be rotated together with a rotating shaft, in which by relatively rotating opposing sealing faces S of the stationary side seal ring 5 and the rotating side seal ring 3, a silicate-containing sealed fluid present on one side in the radial direction of the relatively rotating sealing faces S is sealed, wherein an amorphous carbon film 8 formed by using a hydrocarbon gas containing no silicon compound is provided on at least any one of the sealing faces S of the stationary side seal ring 5 and the rotating side seal ring 3, and content of silicon of the amorphous carbon film 8 is 1.5 at % or less.
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公开(公告)号：US20170268679A1
公开(公告)日：2017-09-21
申请号：US15505562
申请日：2015-08-26
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
CPC分类号： F16J15/3404 , F16J15/062 , F16J15/3412 , F16J15/3488
摘要： Provided is a slide component that can prevent deposit formation on a sealing face as well as promoting circulation of a fluid on sealing faces while fulfilling both conflicting conditions of sealing and lubrication, to maintain the sealing function of the sealing faces for a long period of time. The 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 an inlet portion and an outlet portion and are separated from a low-pressure fluid side by a land portion, the other of the slide parts being provided in a sealing face with interference grooves 15 that communicate with the high-pressure fluid side and produce pressure variations in a fluid in the fluid circulation grooves 10.
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公开(公告)号：US20170241549A1
公开(公告)日：2017-08-24
申请号：US15521608
申请日：2015-10-28
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
摘要： In an embodiment, a slide component includes one slide part 5 provided, on a low-pressure side of a sealing face thereof, with a negative pressure generation mechanism 10 including a negative pressure generation groove 10. The negative pressure generation groove 10a communicates with a high-pressure fluid side and is separated from a low-pressure fluid side by a land portion R. Another slide part 1 is provided, in a sealing face thereof, with at least one interference groove 15 communicating with the high-pressure fluid side for producing pressure variations in a fluid in the negative pressure generation groove 10a. The at least one interference groove 15 has an end 15a on an inside-diameter side extending to a position to radially overlap the negative pressure generation groove 10a.
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