公开(公告)号：EP3051189A4

公开(公告)日：2017-03-22

申请号：EP14849736

申请日：2014-09-17

申请人： KK RIKEN

发明人： OHYA NAOHISA ,  NAGAI JUNYA

IPC分类号： F16J15/46 ,  F16J15/18 ,  F16J15/34

CPC分类号： F16J15/162 ,  F16J15/164 ,  F16J15/3412 ,  F16J15/441

摘要： [Object] To provide a seal ring such that an oil leak can be inhibited while a friction loss is decreased. [Solving Means] A seal ring according to a first aspect of the present invention includes a center axis, an outer peripheral surface, an inner peripheral surface, a side surface, and a groove. The center axis is a rotation center. The outer peripheral surface is an outward cylindrical surface whose center is positioned at the central axis. The inner peripheral surface is an inward cylindrical surface disposed between the center axis and the outer peripheral surface whose center is positioned at the central axis. The side surface connects the outer peripheral surface and the inner peripheral surface. The groove is formed in a dented groove from the side surface, extends along a radial direction spaced from the outer peripheral surface, has a first end connected to the inner peripheral surface and a second end at an opposite side of the first end, and returns oil entered from the first end to an inner peripheral surface side via the second end.

摘要翻译： 本发明的目的是提供一种密封环，使得在减少摩擦损失的同时可以防止漏油。 [解决方案]根据本发明第一方面的密封环包括中心轴线，外周表面，内周表面，侧表面和凹槽。 中心轴是一个旋转中心。 外周面是以中心轴为中心的外侧圆筒面。 内周面是配置在中心轴与中心位于中心轴的外周面之间的内圆筒面。 侧面连接外周面和内周面。 所述凹槽从所述侧表面形成在凹槽中，沿着与所述外周表面间隔开的径向方向延伸，具有连接到所述内周表面的第一端和在所述第一端的相对侧的第二端，并且返回 油经由第二端从第一端进入内周面侧。