Device for deactivation of at least one cylinder of an internal combustion engine
US7677214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Feb 28, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L13/0005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a device (1) for shutting down at least one cylinder of an internal combustion engine. The device (1) is connected to a rocker lever (2) which actuates an intake/exhaust valve (6) of the respective cylinder. In active cylinder operation, the rocker lever (2) executes an oscillating tilting movement about a pivot axle (10) which is situated in the area of the connection to the cylinder head (9), whereas when the respective cylinder is deactivated, the rocker lever (2) is lifted by the cylinder head (9) and therefore its pivot axle (10) is shifted in the direction of the connection of the rocker lever (2) to the valve of the respective cylinder. It is essential to the invention here that the device (1) is arranged essentially between the rocker lever (2) and the cylinder head (9) and the device has a guide element (11), a pivot axle element (12) displaceably mounted on the guide element (11) and a spring (15) stretched between two abutments (13, 14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.