Measuring probe

US6319376A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Theodor Graser · Stuttgart, DE
• Gerhard Hoetzel · Stuttgart, DE
• Johann Wehrmann · Stuttgart, DE
• Heinz Eisenschmid · Stuttgart, DE

Key dates

• Filing date: May 31, 2000
• Grant date: Nov 20, 2001
• Expiry date: May 31, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2560/025
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor, particularly for determining the oxygen content in exhaust gasses of internal combustion engines, includes sensor element which is fixed in a metallic housing and a sealing flange which is integrally formed on the housing and rests on a sealing seat which is formed on an exhaust system. The sealing flange has two ring elements which are integrally formed on the housing and each have an inclined sealing surface, a hollow space being formed between the two ring elements inside the housing.