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    SEALING DEVICE AND SEALING STRUCTURE
    1.
    发明公开
    SEALING DEVICE AND SEALING STRUCTURE 有权
    密封装置和密封结构

    公开(公告)号：EP3128210A1

    公开(公告)日：2017-02-08

    申请号：EP16177451.8

    申请日：2013-03-11

    申请人： NOK Corporation

    发明人： SEKI, Kazunari ,  WATANABE, Koji ,  TOKUNAGA, Wataru ,  TAKAO, Yuki ,  XU, Fangman ,  MIZUTA, Hirotaka ,  NAKASHIMA, Keisuke ,  IGAWA, Takuya ,  YOSHIDA, Yusuke ,  WATANABE, Hideya ,  KONDO, Yosuke

    IPC分类号： F16J15/18

    CPC分类号： F01D11/003 ,  F16J9/20 ,  F16J15/164 ,  F16J15/18 ,  F16J15/181 ,  F16J15/3208 ,  F16J15/3244 ,  F16J15/442

    摘要： A sealing device which is fitted into an annular groove formed in an outer periphery of a shaft so as to seal an annular gap between said shaft and a housing which rotate relative to each other, thereby to hold a fluid pressure in a region to be sealed which is constructed such that the fluid pressure therein changes, characterized by comprising:
    an outer peripheral ring made of resin that is in intimate contact with a side wall surface of said annular groove at a low pressure side thereof, and slides with respect to an inner peripheral surface of a shaft hole in said housing through which said shaft is inserted; and
    an inner peripheral ring made of a rubber-like elastic body that is in intimate contact with an inner peripheral surface of said outer peripheral ring and a groove bottom surface of said annular groove, respectively, thereby to push said outer peripheral ring toward an outer peripheral surface side thereof;
    wherein said outer peripheral ring is formed on its outer peripheral surface with a plurality of concave portions which are spaced from one another in a circumferential direction and which each extend from an end of a high pressure side to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side; and
    wherein convex portions each formed between adjacent concave portions are formed so as to extend from the high pressure side toward the low pressure side as they go in the sliding direction of said outer peripheral ring with respect to said housing.

    摘要翻译： 本发明提供一种密封装置，该密封装置嵌入形成于轴的外周的环状槽中，密封所述轴与壳体之间的相对旋转的环状间隙，从而将流体压力保持在密封对象区域 其构造成使得其中的流体压力发生变化，其特征在于包括：由树脂制成的外周环，所述外周环与所述环形凹槽的低压侧的侧壁表面紧密接触，并且相对于内部 所述轴插入的轴孔的外周表面; 以及由橡胶状弹性体制成的内周环，所述内周环分别与所述外周环的内周表面和所述环形凹槽的凹槽底表面紧密接触，从而将所述外周环推向外侧 其外周表面侧; 其中，所述外周环在其外周面上形成有多个凹部，所述多个凹部在周向上彼此间隔开，并且所述多个凹部分别从高压侧的端部延伸到未到达端部的位置 以便从高压侧向其中引入流体; 并且其中形成在相邻凹部之间的凸部形成为随着它们沿所述外周环相对于所述壳体的滑动方向而从高压侧朝向低压侧延伸。

    SEAL RING AND SEALING STRUCTURE
    2.
    发明公开
    SEAL RING AND SEALING STRUCTURE 审中-公开
    密封环和密封结构

    公开(公告)号：EP3246603A1

    公开(公告)日：2017-11-22

    申请号：EP15877875.3

    申请日：2015-06-18

    申请人： NOK Corporation

    发明人： SEKI, Kazunari

    IPC分类号： F16J15/18 ,  B29C43/02 ,  B29C51/08

    摘要： Provided are a seal ring and a sealing structure that reduce the deviation of the central axis of the seal ring from the central axis of a shaft thereby preventing the seal ring from abutting against the tip end of a housing in the operation of inserting the shaft in the housing. The seal ring is constituted by a thin part 100A which is thin in a radial direction thereof and provided in a range less than 180° with respect to a circumferential direction and a thick part 100B, which is configured to protrude inward in the radial direction from an inner peripheral surface of the thin part 100A, to be thicker in the radial direction than the thin part 100A, the thin part 100A has an abutment joint part 110, and the thick part 100B has, at respective ends of both side surfaces on an inner peripheral surface side thereof, a concave part 120 over an entire range thereof to form a gap between the ends of the both side surfaces and corner parts at both ends of a groove bottom of the annular groove.

    摘要翻译： 提供一种密封环和密封结构，其减小密封环的中心轴线与轴的中心轴线的偏离，从而防止密封环在轴插入操作中抵靠壳体的顶端 住房。 密封环由在径向上较薄且设置在相对于周向小于180°的范围内的薄壁部100A和厚部100B构成，该厚壁部100B构造成从径向向内突出 薄壁部100A的内周面在径向上比薄壁部100A厚，所以薄壁部100A具有抵接接合部110，厚壁部100B在两侧面的端部分别具有 在其整个范围内形成凹部120，以在环形凹槽的凹槽底部的两个侧表面的端部和两端的角部之间形成间隙。

    SEALING DEVICE AND SEALING STRUCTURE
    3.
    发明公开
    SEALING DEVICE AND SEALING STRUCTURE 审中-公开
    DICHTUNGSSTRUKTUR DICHTUNGSELEMENT

    公开(公告)号：EP3121491A1

    公开(公告)日：2017-01-25

    申请号：EP16177450.0

    申请日：2013-03-11

    申请人： NOK Corporation

    发明人： SEKI, Kazunari ,  WATANABE, Koji ,  TOKUNAGA, Wataru ,  TAKAO, Yuki ,  XU, Fangman ,  MIZUTA, Hirotaka ,  NAKASHIMA, Keisuke ,  IGAWA, Takuya ,  YOSHIDA, Yusuke ,  WATANABE, Hideya ,  KONDO, Yosuke

    IPC分类号： F16J15/18

    CPC分类号： F01D11/003 ,  F16J9/20 ,  F16J15/164 ,  F16J15/18 ,  F16J15/181 ,  F16J15/3208 ,  F16J15/3244 ,  F16J15/442

    摘要： A sealing device which is fitted into an annular groove formed in an outer periphery of a shaft so as to seal an annular gap between said shaft and a housing which rotate relative to each other, thereby to hold a fluid pressure in a region to be sealed which is constructed such that the fluid pressure therein changes, characterized by comprising:
    an outer peripheral ring made of resin that is in intimate contact with a side wall surface of said annular groove at a low pressure side thereof, and slides with respect to an inner peripheral surface of a shaft hole in said housing through which said shaft is inserted; and
    an inner peripheral ring made of a rubber-like elastic body that is in intimate contact with an inner peripheral surface of said outer peripheral ring and a groove bottom surface of said annular groove, respectively, thereby to push said outer peripheral ring toward an outer peripheral surface side thereof;
    wherein said outer peripheral ring is formed on its outer peripheral surface with a plurality of concave portions which are spaced from one another in a circumferential direction and which each extend from an end of a high pressure side to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side; and
    wherein convex portions each formed between adjacent concave portions are formed so as to extend from the low pressure side toward the high pressure side as they go in the sliding direction of said outer peripheral ring with respect to said housing.

    摘要翻译： 一种密封装置，其装配在形成在轴的外周中的环形槽中，以便密封所述轴和相对于彼此旋转的壳体之间的环形间隙，从而在要密封的区域中保持流体压力 其构造为使得其中的流体压力发生变化，其特征在于包括：由树脂制成的外周环，其在低压侧与所述环形槽的侧壁表面紧密接触，并且相对于内部 所述轴插入所述壳体中的轴孔的外周表面; 以及分别与所述外周环的内周面和所述环状槽的槽底面紧密接触的橡胶状弹性体构成的内周环，从而将所述外周环向外侧推动 其表面侧; 其中所述外周环在其外周表面上形成有多个凹部，所述多个凹部在圆周方向上彼此间隔开并且各自从高压侧的端部延伸到不到达端部的位置 的低压侧，以从高压侧引入流体; 并且其中形成在相邻的凹部之间的凸部形成为当所述外周环相对于所述壳体沿滑动方向移动时，从低压侧向高压侧延伸。

    SEAL RING
    5.
    发明公开
    SEAL RING 有权
    密封环

    公开(公告)号：EP2119944A1

    公开(公告)日：2009-11-18

    申请号：EP08710715.7

    申请日：2008-02-01

    申请人： NOK Corporation

    发明人： KONDO, Yosuke ,  TAIRA, Iwao ,  SEKI, Kazunari

    IPC分类号： F16J15/18 ,  F16J15/26

    CPC分类号： F16J9/14

    摘要： There is provided a seal ring that makes it possible to improve attachability and sealability.
    The seal ring 1 is separated from each other in one area and has a shape with ends, is inserted in an annular groove in a shaft by temporarily moving both the fittable ends 3 and 4 away from each other, and thereby seals an annular gap formed between the shaft and a housing that has a shaft hole into which the shaft is inserted. The seal ring is configured such that: one of both the ends 3 and 4 has a projection 31 projecting in the direction of the circumference of the seal ring; the other end 4 has a recess 42 used in combination with the projection 31. The projection 41 and the recess 42 are fitted together while slid against each other, thereby bringing both the ends 3 and 4 into contact with each other. The seal ring is characterized in that : the recess 42 has an inclining side face 42a, which inclines from the direction of the circumference; and the projection 31 and the recess 42 form a sliding part so that a part of the edge of the leading end of the projection 31 slides over the inclining side face 42a of the recess 42, and portion of the sliding part is formed as a linear sliding portion 13.

    摘要翻译： 提供了一种密封环，使得可以改善可装配性和密封性。 密封环1在一个区域中彼此分离并且具有端部的形状，通过临时移动两个可装配端部3和4彼此远离，从而密封形成的环形间隙而将其插入轴中的环形凹槽中 在所述轴与具有所述轴插入其中的轴孔的壳体之间。 密封环构造成使得：两个端部3和4中的一个具有在密封环的圆周方向上突出的突出部31; 另一端4具有与突起31组合使用的凹部42.突起41和凹部42在彼此滑动的同时装配在一起，从而使端部3和4彼此接触。 密封环的特征在于：凹部42具有倾斜的侧面42a，该侧面从圆周方向倾斜; 并且突起31和凹部42形成滑动部分，使得突起31的前端的边缘的一部分滑过凹部42的倾斜侧面42a，并且滑动部分的一部分形成为线性的 滑动部分13。