公开(公告)号：EP3199846A4

公开(公告)日：2018-05-23

申请号：EP15843801

申请日：2015-08-26

申请人： EAGLE IND CO LTD

发明人： ITADANI MASATOSHI ,  SUNAGAWA KAZUMASA ,  CHIBA KEIICHI ,  KIRYU KENJI ,  YOSHINO AKIRA ,  SHINOMIYA TAKASHI

IPC分类号： F16J15/34 ,  F04D29/12 ,  F16J15/38

CPC分类号： F16J15/348 ,  F04D29/043 ,  F04D29/12 ,  F04D29/126 ,  F16J15/34 ,  F16J15/36 ,  F16J15/38

摘要： A cup gasket is prevented from coming out to the low-pressure fluid side. 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 of the rotating-side seal ring 5, and is formed in a substantially L shape in cross section including an axial portion 7a in contact with the inside-diameter side of the rotating-side seal ring 5 and an inner cylindrical portion of the sleeve 2 and a radial portion 7b in contact with the back-surface side of the rotating-side seal ring 5 and a radial portion of the sleeve 2, and has a corner portion 7c facing the cut portion 5a formed in a shape along the cut portion 5a. The thickness of the corner portion 7c of the cup gasket 7 is set larger than a gap between the inside-diameter side of the rotating-side seal ring 5 and the inner cylindrical portion of the sleeve 2.

公开(公告)号：EP2889518A4

公开(公告)日：2016-04-06

申请号：EP13830404

申请日：2013-06-18

申请人： EAGLE IND CO LTD

发明人： YOSHINO AKIRA ,  OIYAMA KOICHIRO

IPC分类号： F16J15/32 ,  F16J15/322 ,  F16J15/3228 ,  F16J15/3232 ,  F16J15/3268

CPC分类号： F16J15/3232 ,  F16J15/002 ,  F16J15/32 ,  F16J15/322 ,  F16J15/3228 ,  F16J15/3268

摘要： There is provided a sealing device for sealing an annular gap between a housing a shaft inserted into a shaft hole for preventing leaking of a fluid on one side in an axial direction to another side in the axial direction that is capable of stabilizing the posture of the sealing lip of the first sealing member made of rubber-like elastomer and exhibiting a good sealing performance. The sealing device is characterized by comprising: a first sealing member (120) made of rubber-like elastomer, a second sealing member (140) made of resin, an adaptor (160) including a positioning portion (161) that positions the first sealing member (120) in the axial direction, and a case (110), wherein the adaptor (160) has a bent portion (163) on one side of an inner peripheral end portion of the positioning portion (161) in the axial direction, in which an edge portion (165) at a tip (164) is bent toward an outer peripheral side so as to be spaced apart from an outer peripheral surface of a sealing lip (123) and a contacting portion (166) that is positioned further to an inner peripheral side from the tip (165) is in surface contact with the outer peripheral surface of the sealing lip (123).

公开(公告)号：EP3217049A4

公开(公告)日：2018-07-11

申请号：EP15857699

申请日：2015-10-28

申请人： EAGLE IND CO LTD

发明人： ITADANI MASATOSHI ,  SUNAGAWA KAZUMASA ,  TOKUNAGA YUICHIRO ,  INOUE HIDEYUKI ,  HOSOE TAKESHI ,  YAMAKAWA RYOMA ,  NEGISHI YUTA ,  KIRYU KENJI ,  CHIBA KEIICHI ,  YOSHINO AKIRA ,  KUBOTA HIROSHI

IPC分类号： F16J15/34

CPC分类号： F16J15/40 ,  F16J15/34 ,  F16J15/3412 ,  F16J15/342

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. One slide part 5 is 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. The other 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.

公开(公告)号：EP3196516A4

公开(公告)日：2018-05-16

申请号：EP15842960

申请日：2015-08-26

申请人： EAGLE IND CO LTD

发明人： ITADANI MASATOSHI ,  SUNAGAWA KAZUMASA ,  TOKUNAGA YUICHIRO ,  INOUE HIDEYUKI ,  HOSOE TAKESHI ,  YAMAKAWA RYOMA ,  NEGISHI YUTA ,  KIRYU KENJI ,  CHIBA KEIICHI ,  YOSHINO AKIRA ,  KUBOTA HIROSHI

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.

公开(公告)号：EP3196515A4

公开(公告)日：2018-05-09

申请号：EP15842884

申请日：2015-08-26

申请人： EAGLE IND CO LTD

发明人： ITADANI MASATOSHI ,  SUNAGAWA KAZUMASA ,  TOKUNAGA YUICHIRO ,  INOUE HIDEYUKI ,  HOSOE TAKESHI ,  YAMAKAWA RYOMA ,  NEGISHI YUTA ,  KIRYU KENJI ,  CHIBA KEIICHI ,  YOSHINO AKIRA ,  KUBOTA HIROSHI

IPC分类号： F16J15/34

CPC分类号： F16J15/342 ,  F04D29/128 ,  F16J15/34 ,  F16J15/3412 ,  F16J15/3448

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 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.

公开(公告)号：EP3171057A4

公开(公告)日：2018-04-11

申请号：EP15821724

申请日：2015-06-25

申请人： EAGLE IND CO LTD

发明人： YOSHINO AKIRA

IPC分类号： F16J15/3232 ,  F16J15/322 ,  F16J15/3228 ,  F16J15/3268

CPC分类号： F16J15/3232 ,  F16J15/3216 ,  F16J15/322 ,  F16J15/3228 ,  F16J15/3256 ,  F16J15/3268

摘要： Provided is a sealing device which can stably exhibit a sealing function and enables a reduction in the number of components as well as in a radial size of the device. The sealing device includes a metal cartridge case (110) having a case main body (111) and a first supporting portion (113), a resin sealing member (120), an elastic sealing member (130), and a metal fixing member (140). An outer diameter of a cylindrical portion (141) of the fixing member (140) is set to be equal to or smaller than an inner diameter of the case main body (111), and the cylindrical portion (141) and the case main body (111) are secured by welding. The resin sealing member (120) and the elastic sealing member (130) are fixed by being held in between the first supporting portion (113) and a second supporting portion (142) of the fixing member (140).

公开(公告)号：EP3096048A4

公开(公告)日：2017-09-06

申请号：EP15737553

申请日：2015-01-15

申请人： EAGLE IND CO LTD

发明人： YOSHINO AKIRA

IPC分类号： F16J15/34 ,  F04D29/12

CPC分类号： F16J15/164 ,  F04D1/00 ,  F04D29/126 ,  F04D29/128 ,  F16J15/3448 ,  F16J15/3452 ,  F16J15/3464 ,  F16J15/348 ,  F16J15/36 ,  F16J15/38

摘要： The object of the present invention is to accomplish a stable sealing performance while maintaining the durability. A mating ring (120) includes a sliding portion (121) having a sliding surface that slides against a sealing ring (110) within an end surface on an atmosphere side (A) thereof in an axial direction of a shaft (200), and a retained portion (122) that extends from a radially outward end portion of the sliding portion (121) toward a sealed-fluid side (F) in the axial direction and is retained by a sleeve (130). A mechanical seal (100) includes an annular holder (500) that is fixed to the sleeve (130) receives pressure from an O-ring (140) that receives, from the sealed-fluid side (F) in the axial direction, a fluid pressure (P) of a fluid to be sealed that flew into a space created by a flange portion (132) of the sleeve (130) and the retained portion (122) of the mating ring (120).

摘要翻译： 本发明的目的是在保持耐久性的同时实现稳定的密封性能。 配合环（120）包括具有滑动表面的滑动部分（121），所述滑动表面在轴（200）的轴向方向上的大气侧（A）的端表面内抵靠密封环（110）滑动，以及 保持部122，其从滑动部121的径向外侧的端部向轴向的密封流体侧F延伸并被套筒130保持。 本发明提供一种机械密封件（100），其包括：固定于套筒（130）的环状的支架（500），其从轴向密封流体侧（F）接受来自O形环（140）的压力， 流入由套筒（130）的凸缘部分（132）和配合环（120）的被保持部分（122）形成的空间中的待密封的流体的流体压力（P）。