Patent ID: 11913454
Assignee: EAGLE INDUSTRY CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A sliding component having an annular shape with a fluid facing inside and outside of the sliding component and having a sliding surface relatively sliding with eccentric rotation, wherein
the sliding surface includes a land and a plurality of dynamic pressure generation mechanisms arranged in a circumferential direction,
each dynamic pressure generation mechanism includes a shallow groove portion and a deep groove portion deeper than the shallow groove portion,
the shallow groove portion communicates with the deep groove portion,
a communication passage providing a communication between the deep groove portion and either an inside space or an outside space of the sliding component is formed in the sliding component,
in a plan view parallel to the sliding surface, an area of the deep groove portion is larger than an area of the communication passage, and
the shallow groove portion surrounds the deep groove portion in an annular shape.