Segment seal
US11199262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/38
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A segment seal is configured to seal an annular clearance between a housing and a rotary shaft in a state in which a pair of seal rings are attached in an unrotatable state between one end portion of the housing and a support member attached to the housing so as to be opposite to the one end portion in an axial direction. The segment seal includes an anti-rotation member placed not to rotate relative to the housing or the support member, provided with a pair of raised portions fitted to the pair of seal rings to prevent rotation of the pair of seal rings, and configured such that at least one of the raised portions has a shape fittable only to either one of the seal rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.