Eagle Industry Co., Ltd.

Sayaka Kosugi

Yuichiro Tokunaga

Hideyuki Inoue

Takeshi Hosoe

Yuta Negishi

Hiroki Inoue

In an exemplary embodiment of a sliding component, a sliding face S is provided with a first fluid-side negative pressure generation mechanismincluding a first negative pressure generation groove, and is provided with a second fluid-side negative pressure generation mechanismincluding second negative pressure generation grooveslocated on the second-fluid side of the first fluid-side negative pressure generation mechanism, and is further provided with a dynamic pressure generation mechanismincluding dynamic pressure generation grooveson at least one of the first-fluid side and the second-fluid side of the first fluid-side negative pressure generation mechanismand the second fluid-side negative pressure generation mechanism, and the first negative pressure generation grooveis isolated from the second-fluid side by a land R, and the second negative pressure generation groovesare isolated from the first-fluid side by a land R.

Sliding component

A sliding component includes a pair of sliding parts of which a rotating-side sliding part rotates in both forward and reverse directions. In the sliding component, at least one of the sliding parts has a sliding face provided with positive pressure generation grooves on the sealed fluid side, and a negative pressure generation groove on the opposite-to-sealed-fluid side and separated from the opposite-to-sealed-fluid side by a land, and a deep groove communicating with the sealed fluid side on the sealed fluid side of the negative pressure generation groove. The positive pressure generation grooves each have an upstream end communicating with the deep groove, and the negative pressure generation groove has an upstream inlet and a downstream outlet that communicate with the deep groove, and an intermediate portion between the inlet and the outlet located on the opposite-to-sealed-fluid side of the inlet and the outlet.

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Tokyo, Japan

Sayaka Kosugi