Method of diagnosis of multi-cylinder internal combustion engines and means for carrying out the method
US4791808A · kind A · utility
4Cited by
1References
22Claims
0Family size
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Key dates
| Filing date | Nov 24, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Nov 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
For allocating to the respective cylinders cylinder-specific measured val taken from an internal combustion engine under test with the ignition suppressed the measured values are continuously numbered while the ignition is suppressed. After the suppression of the ignition has ceased the numbering is continued at least until the occurrence of the measured value from a cylinder determined by the ignition, after which, bearing in mind the known firing order of the engine, all the measured values can be allocated to the respective individual cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.