Reinforced sealing rings
US11193588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2253/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a sealing ring assembly having a sealing ring and a reinforcement, configured to seal a high-pressure region from a lower pressure region of a piston and cylinder device. The sealing ring may be segmented, and a metal layer, wire, or other reinforcement may be affixed to the ring. The reinforcement is placed into tension against the sealing ring, which is correspondingly placed into compression. The composite structure of a relatively brittle sealing ring and reinforcement provides for reduced tensile loads in the sealing ring, thus extending life and reducing the likelihood of failure. The brittle portion of the sealing ring assembly may include a polymer or ceramic such as graphite, which is relatively less strong in tension than compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.