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1. 发明申请

US20180106378A1 MECHANICAL SEAL 审中-公开
公开(公告)号：US20180106378A1
公开(公告)日：2018-04-19
申请号：US15505580
申请日：2015-08-26
申请人： EAGLE INDUSTRY CO., LTD.
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.

2. 发明申请

US20170175898A1 SEALING DEVICE 审中-公开
公开(公告)号：US20170175898A1
公开(公告)日：2017-06-22
申请号：US15325867
申请日：2015-06-25
申请人： Eagle Industry Co., Ltd.
发明人： Akira YOSHINO
IPC分类号： F16J15/3232 , F16J15/322 , F16J15/3256 , F16J15/3216
CPC分类号： F16J15/3232 , F16J15/3216 , F16J15/322 , F16J15/3228 , F16J15/3256 , F16J15/3268
摘要： 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).

3. 发明申请

US20180106374A1 SLIDING COMPONENT 审中-公开
公开(公告)号：US20180106374A1
公开(公告)日：2018-04-19
申请号：US15505571
申请日：2015-08-26
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
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.

4. 发明申请

US20160230892A1 MECHANICAL SEAL 有权
标题翻译：机械密封
公开(公告)号：US20160230892A1
公开(公告)日：2016-08-11
申请号：US15022127
申请日：2015-01-15
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Akira YOSHINO
IPC分类号： F16J15/16 , F16J15/36 , F16J15/34
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 disclosure 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：本公开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）包括滑动部分（121），滑动部分（121）具有在轴（200）的轴向方向上在气氛侧（A）的端表面内的密封环（110）滑动的滑动面，以及保持部（122），其从所述滑动部（121）的径向向外的端部向轴向朝向密封流体侧（F）延伸并被套筒（130）保持。机械密封件（100）包括环形保持器（500），其固定到套筒（130），从O形环（140）接收压力，该O形环从密封流体侧（F）沿轴向接收压力，要被密封的流体的流体压力（P）飞入由套筒（130）的凸缘部分（132）和配合环（120）的保持部分（122）产生的空间中。

5. 发明申请

US20210156478A1 MECHANICAL SEAL 有权
公开(公告)号：US20210156478A1
公开(公告)日：2021-05-27
申请号：US16967399
申请日：2019-02-19
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Tadahiro KIMURA , Masatoshi ITADANI , Akira YOSHINO
IPC分类号： F16J15/34
摘要： The purpose of the present invention is to provide a mechanical seal whose axial dimension can be reduced without impairing sealing performance. In a mechanical seal including a rotating-side sealing ring 11; a stationary-side sealing ring 21 provided within a case 22 and sliding on the rotating-side sealing ring 11; a biasing member 24 for biasing the stationary-side sealing ring 21 to the rotating-side sealing ring 11; and an engagement means 25 for restricting the rotational relative movement between the case 22 and the stationary-side sealing ring 21, the biasing member 24 is arranged radially outside the stationary-side sealing ring 21.

6. 发明申请

US20200063560A1 SEALING MEMBER 审中-公开
公开(公告)号：US20200063560A1
公开(公告)日：2020-02-27
申请号：US16462904
申请日：2017-11-17
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuichiro TOKUNAGA , Masatoshi ITADANI , Akira YOSHINO
IPC分类号： F01C19/08 , F16J15/16 , F01C21/04 , F01M1/06
摘要： In an exemplary embodiment, a sealing member 11 is provided between a rotating body 5 rotating while whirling within an accommodating chamber 4 partitioned by a housing and a side wall 3 of the accommodating chamber 4 and has a sliding surface S sliding on the side wall 3, and the sliding surface S includes a first lubrication mechanism 21 arranged on one side in the longitudinal direction, and a second lubrication mechanism 22 arranged on the other side in the longitudinal direction and exhibiting lubrication performance in a sliding direction different from that of the first lubrication mechanism 21, thereby improving sealing performance of the sealing member.

7. 发明申请

US20190169988A1 SEALING DEVICE 审中-公开
公开(公告)号：US20190169988A1
公开(公告)日：2019-06-06
申请号：US16321117
申请日：2017-07-19
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Yuichiro TOKUNAGA , Masatoshi ITADANI , Akira YOSHINO
IPC分类号： F01C19/12 , F16J15/34 , F01C19/08 , F02B55/02
摘要： An oil seal member is provided at an outside surface of a member performing whirling motion such as a rotary engine rotor. A sliding face of the oil seal member that slides relatively to a stationary-side member is provided with a step extending circumferentially, and has a relatively high surface formed on one radial side with respect to the step and a relatively low surface on the other radial side. The high surface is provided with pumping grooves to pump oil tending to leak from the high surface side into the low surface side, into the high surface side by sliding relatively to the stationary-side member.

8. 发明申请

US20180187784A1 SLIDING COMPONENT 审中-公开
公开(公告)号：US20180187784A1
公开(公告)日：2018-07-05
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 , F16C33/78 , F16C33/74 , F16J15/16
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

9. 发明申请

US20190203840A1 MECHANICAL SEAL 审中-公开
公开(公告)号：US20190203840A1
公开(公告)日：2019-07-04
申请号：US16331377
申请日：2017-09-07
申请人： EAGLE INDUSTRY CO., LTD.
发明人： Hikaru KATORI , Keiichi CHIBA , Masatoshi ITADANI , Tadahiro KIMURA , Akira YOSHINO
IPC分类号： F16J15/34
CPC分类号： F16J15/3404 , F04D29/122 , F05B2240/57 , F16J15/34 , F16J15/3452 , F16J15/3464
摘要： Two conflicting functions of sealing and lubrication of sliding faces are achieved for a long time. The sliding face of a rotating-side seal ring 3 is provided with dynamic pressure generation grooves 11 configured to communicate with the circumferential edge on the inner peripheral side of the sliding face and not to communicate with the circumferential edge on the outer peripheral side. A spring 7 is provided on the back side of a stationary-side seal ring 6 for pressing the stationary-side seal ring 6 against the sliding face of the rotating-side seal ring 3. A spring holder 8 is provided between the back side of the stationary-side seal ring 6 and the spring 7.

10. 发明申请

US20170268679A1 SLIDING COMPONENT 审中-公开
公开(公告)号：US20170268679A1
公开(公告)日：2017-09-21
申请号：US15505562
申请日：2015-08-26
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
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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