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公开(公告)号：EP4321778A1
公开(公告)日：2024-02-14
申请号：EP22784615.1
申请日：2022-03-30
发明人： NAKAMURA, Ryo
摘要： There is provided a shaft sealing device in which a leakage of a sealed fluid to a leakage side space can be easily repaired. A shaft sealing device 1 sealing a sealed fluid includes a mating ring 5 having a sliding surface 51 and attached to a casing 4 into which a rotating shaft 3 is inserted, a commonly used seal ring 6 having a sliding surface 62a that slides against the sliding surface 51 of the mating ring 5, and attached to the rotating shaft 3, and the sliding surfaces 51 and 62a, and a backup seal ring 7 attached to the rotating shaft 3 on a counter-sealed fluid side in an axial direction with respect to the sliding surface 51 of the mating ring 5 and the sliding surface 62a of the commonly used seal ring 6, and having a sliding surface 72a facing the sealed fluid in the axial direction. The backup seal ring 7 is movable toward the sealed fluid in the axial direction.
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公开(公告)号：EP2843270B1
公开(公告)日：2017-06-21
申请号：EP13852012
申请日：2013-09-04
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/3404 , F16J15/348 , F16J15/3496
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公开(公告)号：EP3015748A4
公开(公告)日：2017-03-01
申请号：EP14816754
申请日：2014-05-26
发明人： TAKAHASHI HIDEKAZU
IPC分类号： F16J15/34
CPC分类号： F16J15/3404
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公开(公告)号：EP2910823A1
公开(公告)日：2015-08-26
申请号：EP13847540.5
申请日：2013-10-10
发明人： TAKAHASHI Hidekazu
IPC分类号： F16J15/34
CPC分类号： F16J15/3452 , F16J15/34 , F16J15/3412 , F16J15/363
摘要： {Technical Problem} Provide a bellows seal that prevents damage, due to shrink-fitting, to the stationary seal ring which is positioned on the inner periphery side of the seal cover via a bellows in a manner freely movable in the axial direction, while preventing stress-induced damage to the bellows and improving the sealing performance at the same time.
{Solution to Problem} The bellows seal is characterized by having a bellows 11 installed on the inner periphery side of the seal cover 3 between a seal cover 3 and first seal ring 8 in a manner freely extendable/contractible in the axial direction, as well as a spring 13 installed on the inner periphery side of the seal cover 3 to bias the first seal ring 8 in the direction of the second seal ring 9, wherein the first seal ring 8 is hermetically coupled by a lap joint to the end face of a retainer 12 fixed to the bellows 11, and the first seal ring 8 and retainer 12 are installed on the seal cover 3 side in a manner prevented from turning by a knock pin 17.摘要翻译： {技术问题}提供一种波纹管密封件，其可防止由于通过波纹管以位于轴向可自由移动的方式定位在密封盖的内周侧上的固定密封环，由于其收缩而损坏，同时防止 应力引起的波纹管损坏，同时提高密封性能。 {问题的解决方案}波纹管密封件的特征在于具有在密封盖3的内周侧上以轴向自由延伸/收缩的方式安装在密封盖3和第一密封环8之间的波纹管11，以及 作为安装在密封盖3的内周侧上的弹簧13，以将第一密封环8沿着第二密封环9的方向偏压，其中第一密封环8通过搭接接头紧密耦合到 固定在波纹管11上的保持器12，第一密封环8和保持器12以防止旋转销17转动的方式安装在密封盖3侧。
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公开(公告)号：EP2899436A1
公开(公告)日：2015-07-29
申请号：EP14783510.2
申请日：2014-04-07
CPC分类号： C10M125/26 , C04B35/573 , C04B35/806 , C04B2235/428 , C04B2235/5248 , C04B2235/5256 , C04B2235/5268 , C04B2235/616 , C04B2235/963 , F01D11/003 , F05D2240/55 , F05D2300/224 , F05D2300/2261 , F05D2300/614 , F16J15/3496
摘要： [Object] An object of the present invention is to provide a sliding seal member having the characteristics of silicon carbide, such as hardness and low wear, and further having preferable sealing property and lubricating property.
[Solving Means] There is provided a sliding seal member having a sliding surface which is slidable with other sliding member so as to seal a fluid by the sliding surface, comprising carbon fibers which are oriented substantially parallel to the sliding surface in a longitudinal direction of the carbon fibers and silicon carbide existing between the carbon fibers.摘要翻译： 本发明的目的是提供一种具有碳化硅特性的滑动密封件，例如硬度和低磨损性，并且还具有优选的密封性和润滑性。 [解决方案]提供一种滑动密封构件，其具有滑动表面，该滑动表面可与其它滑动构件滑动，以便通过滑动表面密封流体，该滑动密封构件包括碳纤维，该碳纤维沿纵向方向基本上平行于滑动表面定向 存在于碳纤维之间的碳纤维和碳化硅。
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公开(公告)号：EP2896854A1
公开(公告)日：2015-07-22
申请号：EP13837359.2
申请日：2013-09-06
发明人： YANAGISAWA Takashi , SATO Takanori
IPC分类号： F16J15/34
CPC分类号： F16J15/3464 , F16J15/3468 , F16J15/3472 , F16J15/348
摘要： A mechanical seal having a seal cover that has a high versatility and is less prone to deformation even when secured to a housing by two bolts is provided. A mechanical seal 100 includes a rotating ring 40, a stationary ring 20, and a seal cover 10 to attach the stationary ring 20 to a housing 300. The seal cover 10 includes two U-shaped grooves 11 and two elongate holes 12 for bolting, which are disposed alternately and at regular intervals in a circumferential direction of the shaft hole, and elongate holes 12 are elongate in a radial direction of the shaft hole and innermost positions within the elongate holes 12 where bolt shanks can pass through are located further inward than innermost positions within the U-shaped grooves 11 where bolt shanks can pass through.
摘要翻译： 本发明提供一种机械密封件，其具有通用性高且即使通过两个螺栓固定在壳体上也不容易变形的密封盖。 机械密封件100包括旋转环40，固定环20和密封盖10，以将固定环20附接到壳体300.密封盖10包括两个U形凹槽11和两个细长孔12， 它们沿轴孔的圆周方向交替地且等间隔地布置，并且细长孔12在轴孔的径向方向上是细长的，并且细长孔12内螺栓柄可以穿过的最内位置位于比轴孔更靠内 U形槽11内的螺栓杆可穿过的最内位置。
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公开(公告)号：EP2719930A1
公开(公告)日：2014-04-16
申请号：EP12797319.6
申请日：2012-04-24
IPC分类号： F16J15/34 , F16J15/447
CPC分类号： F16J15/004 , F16J15/3484
摘要： Provided is a shaft seal assembly that can restrain an entry of foreign substances into a sealed region for an application with a vacuum in the sealed region.
A first seal structure 100 includes a first stationary ring and a first rotating ring, and is a non-contacting seal structure having a small gap between an end face of the first stationary ring at an atmosphere side and an end face of the first rotating ring at a sealed region side, a second seal structure 200 includes a second stationary ring and a second rotating ring, and is a contacting seal structure in which an axial end face of the second stationary ring and an axial end face of the second rotating ring slide relative to each other, a seal cover 300 is fixed to the first stationary ring and the second stationary ring at an outer circumference side, the seal cover forming a sealed space R between the first seal structure 100 and the second seal structure 200, and a vacuum generating mechanism 700 capable of providing a vacuum in the sealed space R is included.-
公开(公告)号：EP3974685A1
公开(公告)日：2022-03-30
申请号：EP20809294.0
申请日：2020-05-21
发明人： KITO Masakazu
摘要： To provide a mechanical seal in which a sliding surface of a seal ring is not deformed and a retainer is unlikely to be damaged. A mechanical seal 1 includes a pair of seal rings 10 and 20 that rotate relative to each other; and a retainer 11 that holds the seal ring 10. The retainer 11 includes an annular base portion 11a, an annular holding portion 11c that is externally fitted to an outer periphery of the seal ring 10, and an annular connection portion 11b that connects the base portion 11a and the annular holding portion 11c in an axial direction, and an annular space S partially surrounded by the base portion 11a, the annular connection portion 11b, and the annular holding portion 11c is formed between the outer periphery of the seal ring 10 and an inner periphery of the retainer 11. The retainer 11 is provided with a plurality of beams 110 which are disposed in the annular space S to connect the annular base portion 11a and the annular holding portion 11c.
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公开(公告)号：EP2857722B1
公开(公告)日：2018-11-28
申请号：EP13832862.0
申请日：2013-08-26
发明人： FURUKAWA Yasunari , KITO Masakazu
CPC分类号： F16J15/3464 , F16J15/3488 , F16J15/36 , F16J15/363
摘要： {Technical Problem} Provide a mechanical seal that allows for preassembly of its seal members on the stationary side, baffle sleeve, damper, and other related parts at a factory, service center, etc., in a reliable and controlled manner, thereby requiring fewer assembly steps during onsite engineering works. {Solution to Problem} The mechanical seal has a seal ring 9 and a mating ring 10 that faces and slides against the seal ring 9 and either the seal ring 9 or mating ring 10 is supported via a bellows 7 on the equipment interior side of a seal cover 2 installed on a housing 1, while the other rotates together with a rotational shaft 3; and a baffle sleeve 17 or 37 with a roughly L-shaped cross-section is fixed on the equipment exterior side of the seal cover 2 to guide quenching liquid to the sliding surfaces of the seal ring 9 and mating ring 10, where the baffle sleeve 17 or 37 is structurally split into a flange part 21 or 38 and cylinder part 22 or 38.
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公开(公告)号：EP3217048A1
公开(公告)日：2017-09-13
申请号：EP15857687.6
申请日：2015-10-27
发明人： KITO Masakazu , TANAKA Hiroshi
IPC分类号： F16J15/34
CPC分类号： F16J15/3464
摘要： Provide a mechanical seal device that achieves excellent ease of handling the seal ring or other seal element during maintenance.
A mechanical seal device having a mating ring (31) that rotates with a rotating shaft (1), as well as a seal ring (33) that slidably contacts the mating ring (31), so as to seal between the rotating shaft (1) and a seal cover (5) fixed to an equipment main body (2), wherein the seal cover (5) is a split structure comprising at least an inner-diameter-side seal cover (8) and an outer-diameter-side seal cover (7), the inner-diameter-side seal cover (8) is detachably connected to the outer-diameter-side seal cover (7), and the seal ring (33) is connected to the inner-diameter-side seal cover (33) in a securely following manner.摘要翻译： 提供一种机械密封装置，在维护过程中可以非常方便地处理密封环或其他密封元件。 一种机械密封装置，其具有与旋转轴（1）一起旋转的配合环（31）以及与配合环（31）滑动接触的密封环（33），以密封旋转轴（1 ）和固定在设备主体（2）上的密封盖（5），其中密封盖（5）是至少包括内径侧密封盖（8）和外径侧密封盖 内径侧密封盖8以能够装卸的方式与外径侧密封盖7连接，密封环33与内径侧密封垫7连接， 以安全跟随的方式覆盖（33）。
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