Method and apparatus for monitoring cyclic variability in reciprocating engines
US7461545B2 · kind B2 · utility
4Cited by
5References
28Claims
0Family size
Inventor
Key dates
| Filing date | Sep 6, 2006 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Nov 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus is presented for monitoring the cyclic variability of combustion or one or more cylinders of a reciprocating internal combustion engine. Exhaust temperature signals are acquired from one or more exhaust temperature sensors. Cycle-by-cycle values which are related to combustion characteristics are obtained from each exhaust temperature signal. Statistical parameters related to the dispersion of sets of the cycle-by-cycle values are then obtained. The statistical parameters are used to provide an indication of the cyclic variability of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.