Title:
SEGMENT SEAL
Document Type and Number:
WIPO Patent Application WO/2024/043212
Kind Code:
A1
Abstract:
Provided is a segment seal capable of exhibiting a sealing function by suppressing a change in an annular gap within a wide temperature zone. This segment seal 1A is disposed in a state where the rotation thereof is restricted between a housing 2 and a rotary shaft 3 inserted through the housing 2, and seals the gap between the housing 2 and the rotary shaft 3, the segment seal 1A comprising: a base material ring 10 which is externally fitted onto the rotary shaft 3 and is constituted by a plurality of circumferentially split bodies 12; and a resin ring 11 disposed side by side in the axial direction together with the base material ring 10, wherein at least a portion of the base material ring 10 is disposed in an axial high-pressure side of the resin ring 11, and the resin ring 11 has a greater thermal expansion coefficient than the base material ring 10.
Inventors:
NAGO NORIHIRO (JP)
WATANABE KOJI (JP)
OTAKE YUYA (JP)
WATANABE KOJI (JP)
OTAKE YUYA (JP)
Application Number:
PCT/JP2023/030018
Publication Date:
February 29, 2024
Filing Date:
August 21, 2023
Export Citation:
Assignee:
EAGLE IND CO LTD (JP)
EAGLEBURGMANN JAPAN CO LTD (JP)
EAGLEBURGMANN JAPAN CO LTD (JP)
International Classes:
F16J15/34; F16J15/44
Foreign References:
| JP2005201314A | 2005-07-28 | |||
| JPH01166860U | 1989-11-22 | |||
| JPH08189567A | 1996-07-23 | |||
| JPS5853864U | 1983-04-12 | |||
| US20140161589A1 | 2014-06-12 |
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (JP)
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