Valve spring retainer incorporating lubrication oil trap
US11499451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2021 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Nov 16, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M9/103
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.