Misfire detecting apparatus for an internal combustion engine
US3965677A · kind A · utility
20Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1975 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Mar 25, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2410/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A value proportional to suction pressure is added to the difference between the maximum value and the minimum value of a pulsating exhaust pressure. When the sum exceeds a predetermined value, misfire of an engine is detected. The difference and the sum are formed electrically or pneumatically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.