Exhaust system for an internal combustion engine
US7950229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2009 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust system has first and second exhaust gas turbochargers for a V-8 internal combustion engine having an ignition sequence of a 90° crank angle from one cylinder to the next in each of two cylinder banks. The exhaust system includes a first-through-fourth exhaust lines from the cylinders to the two exhaust gas turbochargers, with two cylinders respectively being assigned to an exhaust line. One exhaust turbocharger is respectively assigned to two exhaust lines. The two cylinders assigned to an exhaust line having an ignition interval of a 360° crank angle. The first and the second exhaust lines assigned to an exhaust gas turbocharger having an ignition sequence displaced with respect to one another by a 180° crank angle. As a result, the opening phase of the charge cycle intake valves can be prolonged, which leads to a significantly higher power of the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.