Patent · US Expired

Sealing element for a sensor

US6096181A · kind A · utility

8Cited by

8References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Karl-Hermann Friese · Leonberg, DE
Helmut Weyl
Hans-Martin Wiedenmann · Stuttgart, DE
Anton Hans · Ludwigsburg, DE

Key dates

Filing date	Jun 10, 1998
Grant date	Aug 1, 2000
Priority date	—
Expiry date	Jun 10, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S277/941
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An electrochemical sensor for determining the oxygen content of gases of internal combustion engines includes a ceramic element that is inserted with a sealing ring into a housing. The sealing ring is built up from different metal layers. The arrangement of the metal layers proceeds from a metal support which is composed of a steel alloy. The sealing ring is covered on both sides with a roll-clad copper layer. A nickel layer can additionally be arranged beneath the copper layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.