Nok Corporation

Keisuke Nakashima

Koji Watanabe

Yusuke Yoshida

Yosuke Kondo

Kazunari Seki

Hirotaka Mizuta

Fangman Xu

Hideya Watanabe

Yuki Takao

Wataru Tokunaga

Takuya Igawa

The sealing device includes: an outer peripheral ringthat is in contact with a side wall surface of an annular grooveat a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housingthrough which a shaftis inserted. An inner peripheral ringmade of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ringand a groove bottom surface of the annular groove, respectively. The outer peripheral ringis formed on its outer peripheral surface with a concave portionwhich extends from an end of a high pressure side (H) 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.

Sealing device

Sealing device and sealing structure

Growing community of inventors

Fujisawa, Japan

Keisuke Nakashima