专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3098486A4 SEAL RING 有权转让
公开(公告)号：EP3098486A4
公开(公告)日：2017-11-08
申请号：EP15740299
申请日：2015-01-23
申请人： NOK CORP , EAGLE IND CO LTD
发明人： SEKI MASATOSHI , HOSOE TAKESHI , INOUE HIDEYUKI , TOKUNAGA YUICHIRO
IPC分类号： F16J15/18
CPC分类号： F16J15/441 , F16J15/164 , F16J15/3272
摘要： Provided is a sealing device capable of suppressing leakage of a fluid to be sealed while reducing rotary torque regardless of rotational direction. In a sealing ring (100) slides against a side wall surface on a low pressure side of an annular groove, a dynamic pressure generating groove (120) that includes a first groove (121) having a constant width in a radial direction and extending in a circumferential direction and a second groove (122) extending from a center position of the first groove (121) in the circumferential direction to an inner circumferential surface and guiding a fluid to be sealed into the first groove (121) is provided on a sliding surface side which slides against the side wall surface. The first groove (121) is provided at a position within a sliding region in which the sealing ring slides against the side wall surface.

2. 发明公开

EP2977654A4 SLIDING COMPONENT 有权
公开(公告)号：EP2977654A4
公开(公告)日：2016-11-02
申请号：EP14767316
申请日：2014-03-11
申请人： EAGLE IND CO LTD
发明人： TOKUNAGA YUICHIRO , ITADANI MASATOSHI , SUNAGAWA KAZUMASA
IPC分类号： F16J15/34
CPC分类号： F16C33/748 , F16C17/026 , F16J15/3412 , F16J15/3416 , F16J15/342
摘要： While meeting contradictory conditions of sealing and lubrication, a fluid is actively taken into sealing faces, and even in a case where foreign substances and bubbles are taken into the sealing faces, wear, burnout, and the like due to leakage of the sealing faces and friction heat generation are prevented. A positive pressure generation mechanism 10 including a positive pressure generation groove 11 is 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 12 including a negative pressure generation groove 13 is provided on a low pressure side, a pressure release groove 14 is provided between the positive pressure generation groove 11 and the negative pressure generation groove 13, and further, a radial groove 15 that provides communication between the positive pressure generation groove 11, the pressure release groove 14 and the negative pressure generation groove 13, and a high pressure fluid side is provided on the sealing face, and the radial groove 15 includes an inlet section 15a that provides communication between an upstream side of the positive pressure generation groove 11 and the pressure release groove 14, and the high pressure fluid side, and an outlet section 15b that provides communication between a downstream side of the negative pressure generation groove 13 and the pressure release groove 14, and the high pressure fluid side, the inlet section 15a and the outlet section 15b are inclined in the directions in which the sections respectively open from the low pressure side toward the high pressure side, and an intersection angle ¸ of both the sections made by a tangent line m on a sealing face end is set to be an obtuse angle.

3. 发明公开

EP2853789A4 SLIDE PART 有权
标题翻译： SCHIEBEELEMENT
公开(公告)号：EP2853789A4
公开(公告)日：2016-01-20
申请号：EP13847185
申请日：2013-10-10
申请人： EAGLE IND CO LTD
发明人： TOKUNAGA YUICHIRO
IPC分类号： F16J15/34 , F16J15/32
CPC分类号： F16J15/3412 , F16J15/3448 , F16J15/348
摘要： {Technical Problem} The object is to provide a sliding component that can prevent leakage regardless of the level of differential pressure between the inner periphery and outer periphery of the sealing face by controlling the streak-like flow of fluid due to cavitation that occurs in a dimple or other concaved part formed on the sealing face. {Solution to Problem} The sliding component is characterized in that dimples are provided on one sealing face of a pair of sliding parts that mutually slide relative to each other, and stripe-shaped projections with directionality are provided in a cavitation formation area in each dimple.
摘要翻译：技术问题本发明的目的是提供一种滑动部件，其可以通过控制由于空穴发生的流体的条纹状流而阻止泄漏，而不管密封面的内周和外周之间的压差水平如何凹坑或形成在密封面上的其它凹部。（问题的解决方案）滑动部件的特征在于，在相互相对滑动的一对滑动部的一个密封面上设置有凹部，在每个凹部的空穴形成区域设置有具有方向性的条状突起。

4. 发明公开

EP3163133A4 SLIDING COMPONENT 有权
公开(公告)号：EP3163133A4
公开(公告)日：2018-04-11
申请号：EP15811264
申请日：2015-06-25
申请人： EAGLE IND CO LTD
发明人： ITADANI MASATOSHI , TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/3412 , F16J15/40
摘要： To provide a sliding component smoothing fluid movement from a cavitation formation region on the upstream side of dimples formed on a sealing face to a positive pressure generation region on the downstream side. The sliding component is characterized in that: a plurality of dimples 10 are provided independently in the circumferential direction on one sealing face of a pair of sliding components relatively sliding to each other, a cavitation formation region 10a on an upstream side of each dimple 10 is disposed closer to a low-pressure fluid side and a positive pressure generation region 10b on a downstream side of each dimple is disposed closer to a high-pressure fluid side, and an edge 10d on the low-pressure fluid side of the positive pressure generation region 10b is formed into a tapered shape inclined with respect to the rotating direction of the other sealing face toward the high-pressure fluid side from the low-pressure fluid side and is smoothly connected to an edge on the low-pressure fluid side of the cavitation formation region 10a.

5. 发明公开

EP3163134A4 SLIDING COMPONENT 有权
公开(公告)号：EP3163134A4
公开(公告)日：2018-03-14
申请号：EP15812456
申请日：2015-06-25
申请人： EAGLE IND CO LTD
发明人： ITADANI MASATOSHI , TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/164 , F16J15/3412
摘要： Movement of a fluid from a cavitation formation region on the upstream side to a positive pressure generation region on the downstream side is smoothened, a negative pressure generation starting point is increased, and the cavitation formation regions are disposed over substantially all the periphery on the low pressure fluid side. Each of dimples 10 is formed along the circumferential direction with substantially fixed width from a cavitation formation region 10a on an upstream side of each of the dimples to a positive pressure generation region 10b on a downstream side of each of the dimples, an upstream beginning end 10e of the cavitation formation region 10a is formed in a tapered shape inclined with respect to a rotating direction of an opposing sealing face from a low pressure fluid side toward a high pressure fluid side, and disposed so as to overlap a positive pressure generation region 10b of the dimple 10 arranged on the upstream side in a radial direction, and a low pressure fluid side edge 10f of the positive pressure generation region 10b is formed in a tapered shape inclined with respect to the rotating direction of the opposing sealing face from the low pressure fluid side toward the high pressure fluid side and smoothly connected to a low pressure fluid side edge 10c of the cavitation formation region 10a.

6. 发明公开

EP3163134A1 SLIDING COMPONENT 有权
标题翻译： GLEITKOMPONENTE
公开(公告)号：EP3163134A1
公开(公告)日：2017-05-03
申请号：EP15812456
申请日：2015-06-25
申请人： EAGLE IND CO LTD
发明人： ITADANI MASATOSHI , TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/164
摘要： Movement of a fluid from a cavitation formation region on the upstream side to a positive pressure generation region on the downstream side is smoothened, a negative pressure generation starting point is increased, and the cavitation formation regions are disposed over substantially all the periphery on the low pressure fluid side. Each of dimples 10 is formed along the circumferential direction with substantially fixed width from a cavitation formation region 10a on an upstream side of each of the dimples to a positive pressure generation region 10b on a downstream side of each of the dimples, an upstream beginning end 10e of the cavitation formation region 10a is formed in a tapered shape inclined with respect to a rotating direction of an opposing sealing face from a low pressure fluid side toward a high pressure fluid side, and disposed so as to overlap a positive pressure generation region 10b of the dimple 10 arranged on the upstream side in a radial direction, and a low pressure fluid side edge 10f of the positive pressure generation region 10b is formed in a tapered shape inclined with respect to the rotating direction of the opposing sealing face from the low pressure fluid side toward the high pressure fluid side and smoothly connected to a low pressure fluid side edge 10c of the cavitation formation region 10a.
摘要翻译：从上游侧的气蚀形成区域到下游侧的正压力产生区域的流体的移动被平滑化，负压产生起点增加，并且气蚀形成区域设置在低位高压流体侧。各凹窝10从各凹窝上游侧的空化形成区域10a到各凹窝下游侧的正压力产生区域10b沿着周向以大致固定的宽度形成，上游开始端 10e形成为从低压流体侧朝向高压流体侧相对于相对的密封面的旋转方向倾斜的锥形形状，并且配置成与正压产生区域10b 配置在径向上游侧的凹窝10的低压流体侧缘10f形成为相对于对置密封面的旋转方向从低位侧高压流体侧朝向高压流体侧并平稳地连接至空化结构的低压流体侧边缘10c 祗园10a。

7. 发明公开

EP2947357A4 SLIDING PART 有权
标题翻译： SCHIEBETEIL
公开(公告)号：EP2947357A4
公开(公告)日：2016-10-05
申请号：EP14740492
申请日：2014-01-14
申请人： EAGLE IND CO LTD
发明人： INOUE HIDEYUKI , HOSOE TAKESHI , NEGISHI YUTA , TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/342 , F16J15/162 , F16J15/3412
摘要： {Technical Problem} Allow afluid entering grooves for generating dynamic pressure formed on asealing face to circulate and thereby prevent the sealing face from being damaged by impurities contained in the fluid, while also preventing deposited impurities from pushing wider apart the sealing faces of the pair of sliding rings. {Solution to Problem}The sliding component is provided with a mechanism to generate dynamic pressure by means of relative sliding of a pair of sealing faces of the sliding component, 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.
摘要翻译： {技术问题}允许流体进入用于产生在吸气面上形成的动压的槽以循环，从而防止密封面被包含在流体中的杂质损坏，同时还防止沉积的杂质将分开的一对滑环。 {问题的解决方案}滑动部件具有通过滑动部件的一对密封面的相对滑动而产生动压的机构，其特征在于，一个密封面设置有用于产生动态的凸台10 面向高压流体侧的压力和面向低压流体侧的密封区域11，其中，焊盘10和密封区域11在径向方向上彼此远离并且除了焊盘之外的密封面的区域 10和密封区域11形成为低于这些区域以构成流体连通路径12。

8. 发明公开

EP2740974A4 MECHANICAL SEAL 有权
公开(公告)号：EP2740974A4
公开(公告)日：2015-07-08
申请号：EP12821851
申请日：2012-07-27
申请人： EAGLE IND CO LTD
发明人： OSADA HARUHIRO , INOUE HIDEYUKI , HOSOE TAKESHI , MORIMIYA DAISUKE , TOKUNAGA YUICHIRO , NEGISHI YUTA
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/3412
摘要： {Technical Problem} To provide a mechanical seal which will not leak when stationary; which operates using fluid lubrication and prevents leakage during rotation, including at the start of rotation; and which enables airtightness and lubricity to be exhibited. {Solution to Problem} A plurality of sealed-fluid-accommodating blocks separated in the circumferential direction are formed on either the sealing face of a fixed ring or the sealing face of a rotating ring so as to communicate with a sealed fluid accommodation space. Pumping parts for creating a pumping action due to the fixed ring and the rotating ring sliding while undergoing relative rotation are formed on a bottom part of the plurality of sealed-fluid-accommodating blocks. The pumping parts formed on the bottom parts of the plurality of sealed-fluid-accommodating blocks are provided with an intake pumping part which acts in a direction in which the sealed fluid is drawn in and a discharge pumping part which acts in a direction in which the sealed fluid is discharged.

9. 发明公开

EP2977655A4 SLIDING PART 有权
标题翻译：滑动部分
公开(公告)号：EP2977655A4
公开(公告)日：2016-11-02
申请号：EP14769338
申请日：2014-03-11
申请人： EAGLE IND CO LTD
发明人： ITADANI MASATOSHI , TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/3448 , F16J15/3412 , F16J15/3416 , F16J15/342
摘要： A fluid is actively taken into sealing faces and discharged from the sealing faces so as to prevent concentration of sediment causative substances on the sealing faces and hence prevent generation of sediment while preventing leakage of the fluid taken into the sealing faces to a low pressure fluid side. A fluid circulation groove 10 including an inlet section 10a where a fluid comes in from a high pressure fluid side, an outlet section 10b where the fluid goes out to the high pressure fluid side, and a communication section 10c that provides communication between the inlet section 10a and the outlet section 10b is provided in one of sealing faces of a pair of sliding parts that slide on each other. The fluid circulation groove 10 is isolated from a low pressure fluid side by a land section R. At least a sectional area of the groove in the inlet section 10a or the outlet section 10b is set to be different from a sectional area of the groove in the communication section 10c in such a manner that pressure of the fluid flowing through the fluid circulation groove 10 is lowered in the communication section 10c.

10. 发明公开

EP2902677A4 SLIDING PART 有权
标题翻译： SCHIEBETEIL
公开(公告)号：EP2902677A4
公开(公告)日：2016-05-11
申请号：EP13840285
申请日：2013-09-26
申请人： EAGLE IND CO LTD
发明人： TOKUNAGA YUICHIRO
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/3412 , F16J15/348 , F16J15/40
摘要： {Technical Problem} Provide a sliding component that can prevent leakage while also providing lubrication regardless of the level of differential pressure between the inner periphery and outer periphery of the sealing face, by suctioning in the fluid in the cavitation area on the upstream side of the dimple or other concaved part formed on the sealing face and generating positive pressure between the sealing faces on the downstream side of the dimple. {Solution to Problem} The present invention is characterized in that dimples are provided on one sealing face of a pair of sliding parts that mutually slide relative to each other, where the cavitation formation area on the upstream side of each dimple is positioned closer to the low-pressure fluid side and the positive-pressure generation area on the downstream side is positioned closer to the high-pressure fluid side, and the fluid that has been suctioned in the cavitation formation area of each of the above dimples travels in the dimple and is returned to the high-pressure fluid side from the positive-pressure generation area.
摘要翻译： {技术问题}提供一种滑动部件，其可以防止泄漏，同时还可以通过吸入密封面的内周和外周之间的压差水平而在凹坑或凹陷部分形成在密封面上并在凹坑的下游侧的密封面之间产生正压。（问题的解决方案）本发明的特征在于，在彼此相对滑动的一对滑动部件的一个密封面上设置有凹坑，其中，每个凹部的上游侧的空化形成区域位于更靠近低压流体侧，下游侧的正压生成区域更接近高压流体侧，并且在上述凹坑的空穴形成区域中吸入的流体在凹坑中行进，从正压产生区域返回到高压流体侧。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式