Method for detecting lean limit by means of ionic current in an internal combustion engine
US5452603A · kind A · utility
13Cited by
4References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 14, 1993 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Jul 14, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P2017/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An object of the invention is to detect an upper limit of a lean burn zone in an internal combustion engine in each ignition. The lean limit is detected on the basis of the characteristics of the ionic current in a cylinder of the engine immediately after ignition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.