Spark plug with a pressure measuring device
US4969353A · kind A · utility
11Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a spark plug a longitudinal bore is arranged eccentrically in a housing. A housing part with a thicker wall thickness is thereby formed, and a pressure sensor is provided in a bore or this housing part, and therefore the pressure sensor is in direct connection with the combustion chamber. No structural outer changes are required on the housing, so that the spark plug can be installed without any problems in known arrangements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.