Gas measurement sensor, especially for determining oxygen concentration in exhaust gases of internal combustion engines
US5246562A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jun 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4078
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas measurement sensor (10) which sealingly encloses an axially oriented sensor (27) having an elongated, planar shape in the longitudinal bore (19) of its metal housing (11); while the section (27/1) on the gas measuring side of the sensor (27) has at least one sensor element (38) and possibly heating elements, the end section (27/3) on the connecting side is provided with layered contact surfaces (36), which are in contact with the sensor elements (38)/heating elements via strip conductors (37). A connector plug (43) surrounding the sensor (27) on the connecting side consists of a contact element support (44), an opposite wall (45), contact elements (46) and an annularly-shaped spring element (47); because of its mechanical pre-stressing, the spring element (47) presses the contact elements (46) of the contact element support (44) and of the opposite wall (45) against the contact surfaces (36) of the sensor (27). On the connecting side the contact elements (46) have connecting points (56) for connecting conductors (57). The connector plug (43) allows the installation on the sensor element (27) without damage to the sensor contact surfaces (36) and possible coatings on connector…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.