Sealing system for a gas sensor and a method for manufacturing the sealing system

US6758082B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Heinz Geier · Leonberg, DE
• Helmut Weyl
• Siegfried Nees · Lauffen am Neckar, DE
• Bernhard Wild · Markgröningen, DE
• Thomas Egner · Kornwestheim, DE
• Peter Dettling · Waiblingen, DE

Key dates

• Filing date: May 10, 2002
• Grant date: Jul 6, 2004
• Expiry date: Aug 27, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49002
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A gas sensor includes a sensor element for determining at least one physical quantity of a gas, e.g., for determining the concentration of a gas component in an exhaust gas of an internal combustion engine or the temperature of the exhaust gas. The sensor element is fixed in position by the sealing system in a housing of the gas sensor. The sealing system includes at least one sealing element, which includes a mixture of a ceramic material and a glass. The hemisphere temperature of the glass is above 750° Celsius.