Internal combustion engine having cylinder disablement
US7246609B2 · kind B2 · utility
0Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2006 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multi-cylinder internal combustion engine having an exhaust system with an exhaust emission after-treatment device for exhaust gases from the cylinders, an air supply system for supplying fresh air to the cylinders, a fuel supply system for supplying fuel to each cylinder, and a controller to cut off the fuel supply and disable at least one cylinder, and preferably two cylinders in opposing pairs. A valve assembly is located between the cylinders to be disabled and the emission after-treatment device and is operable to divert gases from said the disabled cylinders via a recirculation conduit back to the air supply system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.