Method and device for equalizing the filling of the cylinders of a multi-cylinder internal combustion engine
US6966286B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2004 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | May 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for equalizing the filling of cylinders of a multi-cylinder internal combustion engine (14) comprising a fully variable mechanical valve train (20) having an adjusting shaft (1) that controls the valve lift of the inlet valves of a cylinder bank and can be rotated together with its rotationally fixed adjusting cam (2) by an electromechanical actuator (3) whereby an equalization of the filling of the individual cylinders is achieved by the fact that filling-dependent engine data are measured by a sensor (16) while the engine (14) is running and are processed using suitable software in a control device (15) into signals with which the actuator (3) rotates the adjusting shaft (1) selectively for each cylinder in keeping with the opening phase and thus regulates the lift and the time cross-section of the individual inlet valves and, as a consequence, also the filling of the individual cylinders to a desired set value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.