Sensor device

US9976980B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Johannes Ante · Regensburg, DE
• Philippe Grass · Regensburg, DE

Key dates

• Filing date: Mar 19, 2014
• Grant date: May 22, 2018
• Expiry date: Jun 28, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4078
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor device includes: a housing body delimiting within the housing body: a flow duct, and a bypass that branches off from the flow duct at a branching point, the bypass having a wall with an opening; and a sensor element configured to detect a gas content, the sensor element being arranged in the opening. The sensor element has: a sensor body having a longitudinal axis, an electrode chamber within the sensor body, a heating element embedded in the sensor body and by which a predefined region around the electrode chamber is heatable to a predefined operating temperature, an inlet duct coupled to the electrode chamber and having an inlet on the surface of the sensor body, and a thermal insulation sleeve on the sensor body, the thermal insulation sleeve extending at least axially in the direction of the longitudinal axis over a region of the electrode chamber.