Rotating carbon piston ring seal
US11028713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/164
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine assembly includes a compressor including a plurality of rotors, where at least one of the plurality of rotors includes a radial inner sealing surface. A rotating shaft drives rotation of the plurality of rotors, where the rotating shaft includes an annular groove proximate the radial inner sealing surface. A seal is disposed within the annular groove, and the seal comprises at least two annular sections forming a complete circumference. Each of the at least two annular sections are separate parts and include a radially-facing sealing surface engaged to the radial inner sealing surface of the rotor and an annular slot disposed radially inward of the radially-facing sealing surface. A retainer is disposed within the annular slot limiting radial expansion of the at least two annular sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.