Engine having variable lift valvetrain
US8286599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2010 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Dec 28, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2305/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rocker arm may include a first arm defining a first longitudinal bore and a second arm defining a second longitudinal bore. The rocker arm may house a locking assembly including a first lock pin located within the first longitudinal bore, an actuation pin extending through a radial passage in the rocker arm and engaged with the first lock pin, and a first biasing member engaged with the first lock pin and urging the first lock pin toward the actuation pin and biasing the actuation pin radially inward. An actuation assembly may be engaged with the actuation pin and linearly displaceable between first and second actuation positions. The first and second arms may be rotatable relative to one another when the actuation member is in the first actuation position and may be fixed for rotation with one another when the actuation member is in the second actuation position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.