Valve train with camshaft with an axially displaceable cam unit
US8833319B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Oct 13, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2013/0052
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve train for an internal combustion engine includes a camshaft with a cam unit for actuating a gas exchange valve. The cam unit has at least two cam paths arranged axially one behind the other and is arranged on the camshaft in a rotation-resistant and axially displaceable manner, and has an actuating profile interacting with a displaceable actuating element between a home position and an actuating position radially to the axis of the camshaft for axially displacing the cam unit on the camshaft. The actuating profile is formed by the lateral front face of the cam unit, and the actuating element has at least one displaceable actuating pin that interacts with a lateral front face of the cam unit such that an axial displacement of the cam unit takes place and in each axial position a different cam path is activated to actuate the gas exchange valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.