Cam shaft/cam gear assembly and thrust strategy for engine using same
US8800517B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N27/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine includes a camshaft supported in a housing for rotation about an axis of rotation. A cam gear is attached to one end of the camshaft and includes a first thrust bearing surface. A thrust ring is attached to the cam gear and includes a second thrust bearing surface. A thrust ring retainer is attached to the housing with a plurality of bolts and includes a pair of thrust surfaces trapped between the first thrust bearing surface of the cam gear and a second thrust bearing surface of the thrust ring. The thrust ring retainer also defines a portion of a lubrication connection passage that facilitates pressure equalization among a plurality of lubrication galleries arranged in parallel adjacent the camshaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.