公开(公告)号：US20170130847A1

公开(公告)日：2017-05-11

申请号：US15320942

申请日：2015-06-24

Applicant: KITZ CORPORATION

Inventor： Osamu WATANABE ,  Tomoya YAMASAKI

IPC: F16K5/06 ,  F17C13/04 ,  B23P15/00

CPC classification number: F16K5/0647 ,  B23P15/001 ,  F16K5/06 ,  F16K5/0663 ,  F16K5/0668 ,  F17C5/007 ,  F17C13/04

Abstract: A structure and method for fastening a ball seat for a ball valve, a trunnion-type ball valve (100), and a hydrogen station using this valve, in which a stepped part (30) is provided in mid-course of each of inner and outer peripheral surfaces of a resin-made annular seat body (21), with a seat part (31) provided on a tip side and a holding part (32) provided on a rear end side; an attachment groove (45) formed of inner and outer cylinders having a ring-shaped swaging edge part (34) is formed at a tip of a seat retainer (22); the holding part (32) is attached to this attachment groove (45); and the swaging edge part (34) of the inner and outer cylinders is closely contacted and fixed by being swaged to the stepped part (30) to cause the seat part (31) to protrude more than a swaging position.

公开(公告)号：US20140013938A1

公开(公告)日：2014-01-16

申请号：US14036408

申请日：2013-09-25

Applicant: Kitz Corporation

Inventor： Kazuhiro AOKI ,  Tomoya YAMASAKI ,  Chikashi GOMI

IPC: F15B21/00

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。