-
公开(公告)号:JPWO2016148006A1
公开(公告)日:2017-11-30
申请号:JP2017506493
申请日:2016-03-10
Inventor: 吉田 勇介 , 勇介 吉田 , 方満 許 , 方満 許 , 望 鈴木 , 望 鈴木 , 慎正 細沼 , 慎正 細沼 , 重信 本田 , 重信 本田 , 吉村 健一 , 健一 吉村 , 陽平 酒井 , 陽平 酒井 , 将太 當間 , 将太 當間
IPC: F16J15/18
CPC classification number: F16J15/18
Abstract: 密封対象流体の漏れを抑制しつつ、安定的に回転トルクを低減可能なシールリングを提供する。周方向の1箇所に設けられる合口部(110)と、環状溝の側壁面に対して摺動する摺動面側に、周方向に対してそれぞれ間隔を空けて設けられる複数の動圧発生用溝(120)と、前記側壁面に対して摺動する摺動面側であって、周方向において、複数の動圧発生用溝(120)が配置されている領域と合口部(110)との間に設けられ、合口部(110)から侵入してきた異物を捕捉し、かつ捕捉した異物をシールリングと前記側壁面との摺動部の外部に排出可能な異物排出用溝(130)と、を備えることを特徴とする。
-
公开(公告)号:JP5365484B2
公开(公告)日:2013-12-11
申请号:JP2009272625
申请日:2009-11-30
Applicant: Nok株式会社
IPC: F16J15/06
CPC classification number: F16J15/3204 , F16J15/024 , F16J15/062
Abstract: Provided are a gasket and a seal structure, which can exhibit a sealing property without being affected by the state of a contact surface of an attached object. A plurality of lip portions (3) which are brought into contact with a groove bottom surface (42) of a groove (41) of one of members to which a gasket (1) is attached or one of the surfaces of the other member, to form a seal surface, are provided. A recessed portion (3a) is formed between the lip portions (3). When the compression direction is defined as the height direction, and the direction in which both side surfaces of the groove are opposed is defined as the width direction, in sections along the height direction and the width direction of the gasket (1), the area which forms the sealing surface in conjunction with the groove bottom surface (42) or the other of the surfaces of the other member among the profiles in the sections, is shaped into a arciform portion (2) composed of a curved line projected toward the other surface, before the gasket (1) is compressed between the two members. The radius of curvature (ra) and the section width (d0) of the arciform portion (2) satisfy 0.75≦̸ra/d0≦̸2.0.
-