Piston-integrated gap cover
US11236827B2 · kind B2 · utility
1Cited by
26References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Mar 13, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3488
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a sealing ring assembly with one or more piston-integrated gap cover features, configured to seal a high-pressure region from a relatively lower pressure region of a piston and cylinder device. The sealing ring assembly may include two rings which each may include one or more ring segments. The one or more gap-cover features, which may be in the form of protrusions in the piston ring groove, may engage with corresponding flat sections of the ring segments. As the sealing ring wears, the gap-cover features may stay engaged with the ring segments, thereby maintaining a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.