Custom VVA rocker arms for left hand and right hand orientations
US9664075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A modified rocker assembly having an offset end is designed for engine heads having an obstruction preventing use of a symmetric switching rocker arm. The modified rocker assembly has an obstructed side and a non-obstructed side and has an outer structure with a first end, and an inner rocker structure fitting within the outer structure, the inner structure also having a first end. The modified rocker assembly has an axle pivotally connecting the first ends of inner structure to the outer structure, such that the inner structure pivots within the outer structure around the axle. At least one torsion spring on one side of the axle rotationally biases the inner structure relative to the outer structure. The outer structure is offset on the obstructed side as it extends from the second end toward the first end, creating the first offset portion to provide additional clearance on the obstructed side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.