Method for controlling internal combustion engine emissions
US7243017B2 · kind B2 · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2006 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Jun 8, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0802
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling internal combustion engine emissions, including the steps of reading signals from sensors in an engine exhaust manifold and catalytic converter exhaust, an upstream one of the sensors being provided with an air-fuel mixture setpoint, comparing signal values with previous average values and automatically adjusting the air-fuel mixture set point to vary the fuel mixture fed to the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.