Hydraulically lashed end pivot rocker arm
US7753017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jan 8, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2810/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulically lashed end pivot rocker arm assembly finds application in high performance valve trains of internal combustion engines. The rocker arm is mounted at one end upon an eccentric bearing assembly and includes a surface for engaging a valve stem at the opposite end and a roller engaged by a camshaft disposed between the ends. The eccentric bearing assembly includes a stub shaft or cylindrical body that is received within a bore in the rocker arm and an eccentric bore which receives an inner shaft which extends along the cylinder head and supports the eccentric bearings and the rocker arm assemblies. The stub shaft or cylindrical body includes an ear or lug which is engaged by a hydraulic lash adjuster disposed parallel to and offset from the vertical plane of motion of the rocker arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.