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公开(公告)号：EP3779247A1
公开(公告)日：2021-02-17
申请号：EP19780777.9
申请日：2019-04-02
发明人： KITO Masakazu , TAKIGAHIRA Yoshiaki
摘要： To provide a mechanical seal in which a torque is less likely to be transmitted to bolts and in which the bolts can be prevented from loosening.
A mechanical seal 1 includes rotating seal ring 20, 21 which rotate with a rotary shaft 2, stationary seal rings 30, 31, and an adaptor 5 which holds the stationary seal rings 30, 31, the adaptor 5 being fixed to a seal cover 3 by bolts 11. The mechanical seal 1 further includes a plurality of holders 9 brought into contact with the adapter 5 and provided with through holes 9d. A body part 11a of each of the bolts 11 passes through each of the through holes 9d and is screwed into each of threaded holes 3f formed in the seal cover 3. The plurality of holders 9 being arranged so as to surround the rotary shaft 2.-
公开(公告)号：EP3450805A1
公开(公告)日：2019-03-06
申请号：EP17789310.4
申请日：2017-04-14
发明人： TAKIGAHIRA Yoshiaki , KITO Masakazu
摘要： There is provided a bellows mechanical seal with a high degree of freedom in arrangement of a collar and a secondary seal.
In a bellows mechanical seal (1), a collar (3) attached to a seal ring (15) through a bellows (13) has a restriction piece (4), (8) extending toward at least one of an inner diameter side or an outer diameter side. The bellows mechanical seal (1) includes an adaptor (50), (70) which is attached to the collar (3), whose axial movement is restricted by the restriction piece (4), (8), and which extends to the inner diameter side or the outer diameter side over the restriction piece (4), (8). The collar (3) and the adaptor (50), (70) form at least part of a housing space (S), (S') having the secondary seal (60), (80) housed therein.-
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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公开(公告)号：EP3217048B1
公开(公告)日：2020-09-16
申请号：EP15857687.6
申请日：2015-10-27
发明人： KITO Masakazu , TANAKA Hiroshi
IPC分类号： F16J15/34
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公开(公告)号：EP3217047A1
公开(公告)日：2017-09-13
申请号：EP15857141.4
申请日：2015-10-27
发明人： KITO Masakazu , TANAKA Hiroshi
IPC分类号： F16J15/34
CPC分类号： F16J15/34 , F16J15/3404 , F16J15/3464 , F16J15/3484
摘要： Provide a mechanical seal device with improved seal cover structure that achieves excellent ease of handling the seal ring or other seal element during maintenance. A mechanical seal device having a mating ring (131) that rotates with a rotating shaft (101), as well as an opposing seal ring (133) that slidably contacts the mating ring (131), so as to seal between the rotating shaft (101) and a seal cover (105) fixed to an equipment main body (102); wherein such mechanical seal device is characterized in that the seal cover (105) is a split structure comprising at least a first seal cover (107, 108) and second seal cover (106), the first seal cover (107, 108) is detachably connected in the axial direction by leaving the second seal cover (106) free from it, and the seal ring (133) is connected to the first seal cover (107, 108) in a securely following manner.
摘要翻译： 提供具有改进的密封盖结构的机械密封装置，该密封装置在维护期间可以非常方便地处理密封环或其他密封元件。 一种具有与旋转轴（101）一起旋转的配合环（131）的机械密封装置，以及与配合环（131）滑动接触的相对密封环（133），以密封旋转轴 101）和固定在设备主体（102）上的密封盖（105）。 其中，所述机械密封装置的特征在于，所述密封盖（105）是至少包括第一密封盖（107,108）和第二密封盖（106）的分裂结构，所述第一密封盖（107,108）可拆卸地 通过使第二密封盖（106）自由地离开而沿轴向方向连接，并且密封环（133）以可靠地跟随的方式连接到第一密封盖（107,108）。
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公开(公告)号：EP2857722A1
公开(公告)日：2015-04-08
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.摘要翻译： {技术问题}提供机械密封，可以可靠和受控的方式在工厂，维修中心等的固定侧，挡板套管，阻尼器和其他相关部件上预先组装其密封构件，从而减少 现场工程工程中的装配步骤。 {问题的解决方案}机械密封件具有密封环9和与密封环9相对并滑动的配合环10，并且密封环9或配合环10通过波纹管7支撑在设备内侧 密封盖2安装在壳体1上，而另一个与旋转轴3一起旋转; 并且具有大致L形横截面的挡板17或37固定在密封盖2的设备外侧上，以将淬火液引导到密封环9和配合环10的滑动表面，其中挡板套 17或37在结构上分为凸缘部分21或38以及气缸部分22或38。
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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：EP3851709A1
公开(公告)日：2021-07-21
申请号：EP19860496.9
申请日：2019-09-13
发明人： KITO Masakazu
IPC分类号： F16J15/34
摘要： There is provided a vertical sealing device capable of preventing foreign matter from entering a seal portion from the outside of a machine.
In a vertical sealing device 1 with a seal portion S axially sealing a rotating shaft 2 provided in a machine and extending in a vertical direction, an annular collar portion 5a which extends in an outward radial direction from a radial gap G2 between a rotational side element 5 and a stationary side element 6 is provided in the rotational side element 5 so as to be located on an outside of the machine with relation to the seal portion S.
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