Method and apparatus for detecting knocking combustion
US4437334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1982 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Feb 12, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method, and apparatus for carrying out the method, for detecting knocking operation in externally auto-ignited internal combustion engines. The radiation emitted from the combustion chamber gases is detected with a knock sensor and is passed on. Suitable as a knock sensor are photo-conductive fibers which are preferably accommodated in the central electrode of the spark plug. The radiation detected by the knock sensor is conveyed through a transmission mechanism, which can also be constructed of photo-conductive fibers, to a radiation receiver and a signal converter, for example a photo-multiplier, and is subsequently processed in a processing logic. The processing logic delivers an output signal when knocking operation exists. This output signal can either be indicated, and/or can be utilized to control the parameters which influence the knocking combustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.