Title:
摺動部品
Document Type and Number:
Japanese Patent JP6678170
Kind Code:
B2
Abstract:
To prevent leakage of sealed fluid and entry of dust into sliding faces as well as to fluid-lubricate the sliding faces for low friction during steady operation. A sliding component includes a pair of sliding parts that relatively slide on each other is provided. One of the sliding parts is a stationary-side seal ring 7, and the other of the sliding parts is a rotating-side seal ring 4. The seal rings each have a sliding face S formed radially for sealing sealed fluid from leaking. The sliding face S of at least one sliding part of the pair of sliding parts 4 and 7 is provided with dynamic pressure generation grooves 10 spaced in a non-communicating manner from the sealed-fluid side and the leakage side by lands R of both sliding faces, and is provided with fluid introduction holes 11 between leakage-side ends 10a of the dynamic pressure generation grooves 10 and the leakage side, for communicating the dynamic pressure generation grooves 10 and the leakage side. Each of the fluid introduction holes 11 is configured such that a dynamic-pressure-generation-groove-side opening 11a open to a corresponding one of the dynamic pressure generation grooves 10 is axially displaced from a leakage-side opening 11b open to the leakage side.
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Inventors:
Yuichiro Tokunaga
Hideyuki Inoue
Kimura Wataru
Tetsuya Iguchi
Keiichi Chiba
Satoshi Itaya
Katori Ikko
Hideyuki Inoue
Kimura Wataru
Tetsuya Iguchi
Keiichi Chiba
Satoshi Itaya
Katori Ikko
Application Number:
JP2017519177A
Publication Date:
April 08, 2020
Filing Date:
May 13, 2016
Export Citation:
Assignee:
Eagle Industry Co., Ltd.
International Classes:
F16J15/34; F02B39/00
Domestic Patent References:
| JP2004502913A |
Foreign References:
| US3804424 | ||||
| US5222743 |
Attorney, Agent or Firm:
Yasushi Amasaka
Yoshihiro Sakurai
Yoshihiro Sakurai