Oil seal arrangement for rotary internal combustion engine
US8985085B2 · kind B2 · utility
2Cited by
43References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B55/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotor of a rotary internal combustion engine, including an annular oil seal assembly snugly received within each oil seal groove, each oil seal assembly including a seal ring retaining first and second axially spaced apart annular sealing elements in substantial radial alignment with one another, the seal ring radially pressing each of the sealing elements in sealing engagement with a respective surface in the groove in opposite directions from one another, and a spring member biasing the seal ring axially away from the end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.