Air/fuel ratio detector
US4594139A · kind A · utility
16Cited by
4References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 13, 1984 |
| Grant date | Jun 10, 1986 |
| Priority date | — |
| Expiry date | Dec 13, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An air/fuel ratio detector for use in measuring or controlling oxygen concentration in exhaust gas from a combustion device, comprising a plurality of solid electrolyte, oxygen ion conducting elements and an electronic control unit. The detector output, which is different over a wide range of air/fuel ratios, from fuel-rich to fuel-lean, enables monitoring of engine operating conditions without having to know beforehand whether the air/fuel ratio is fuel-lean or fuel-rich, and may be used as a feedback control in an internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.