Sliding component having fluid introduction groove and dynamic pressure generation groove
US10704417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2361/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Both conflicting functions of sealing and lubrication of sliding faces are made compatible over an entire period from the time of startup through the time of steady operation. A pair of sliding parts that relatively slide on each other is provided, one of the sliding parts being a stationary-side seal ring, the other of the sliding parts being a rotating-side seal ring, the seal rings each having a sliding face S formed radially for sealing sealed fluid from leaking, at least one of the sliding faces S being provided with fluid introduction grooves 10 configured to communicate with a first peripheral edge of the sliding face S and not to communicate with a second peripheral edge, and being provided with dynamic pressure generation grooves configured to communicate with the second peripheral edge of the sliding face S and not to communicate with the first peripheral edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.