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公开(公告)号：US09032996B2
公开(公告)日：2015-05-19
申请号：US14036408
申请日：2013-09-25
Applicant: KITZ CORPORATION
Inventor： Kazuhiro Aoki , Tomoya Yamasaki , Chikashi Gomi
CPC classification number: F15B21/00 , F16J15/164 , F16J15/3208 , F16J15/3296 , F16J15/56 , F16K7/045 , F16K31/02 , F16K31/025 , G05D7/0635 , G05D7/0641 , H01L41/193 , Y10T137/2202 , Y10T137/2213 , Y10T137/87169 , Y10T137/87217
Abstract: A shaft sealing device switches a sealing state and an unsealing state of a fluid, with high sealing performance maintained, because no abrasion accompanies movement of a sealing material or a sealing member, enabling feeding a fluid at a predetermined flow rate, and adjusts the expanding rate of the sealing material with the quantity of an external electric signal and accordingly adjusts the contact face pressure to enable controlling the amount of leakage of the fluid highly precisely, so that it can be used for all applications. The shaft sealing device includes a shaft sealing body formed of a macromolecular material and made expansible or contractible, or deformable, through external electrostimuli applied to a shaft sealing portion disposed in a device body, and flow passages disposed in the shaft sealing portion for feeding the fluid leaked due to the expansion or contraction, or the deformation, of the shaft sealing body.
Abstract translation: 轴密封装置切换流体的密封状态和开封状态，保持高的密封性能，因为没有磨损伴随着密封材料或密封构件的移动，能够以预定流量供给流体，并且调节膨胀 密封材料与外部电信号量的比率，并且因此调节接触面压力，以便能够高精度地控制流体的泄漏量，从而可以用于所有应用。 轴封装置包括：由大分子材料形成的轴封体，通过施加到设置在装置主体中的轴密封部分的外部静电，可膨胀或收缩或变形，以及设置在轴封部分中的流动通道， 流体由于轴封体的膨胀或收缩或变形而泄漏。
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公开(公告)号：US10465804B2
公开(公告)日：2019-11-05
申请号：US15320942
申请日：2015-06-24
Applicant: KITZ CORPORATION
Inventor： Osamu Watanabe , Tomoya Yamasaki
Abstract: A structure and method for fastening a ball seat for a ball valve, a trunnion ball valve, and a hydrogen station using the ball valve, in which a stepped part is positioned medially in each of inner and outer peripheral surfaces of a resin-made annular seat body, with a seat part on a tip side and a holding part on a rear end side; an attachment groove defined by inner and outer cylinders having a ring-shaped swaging edge part at a tip of a seat retainer; the holding part being attached to the attachment groove; and the swaging edge part of the inner and outer cylinders being in contact with and fixed by being swaged to the stepped part so as to cause the seat part to protrude farther than a swaging position.
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