Sensor and production method therefor for use in an exhaust gas stream of an internal combustion engine

US11242792B2 · kind B2 · utility

Assignee

• VITESCO TECHNOLOGIES GMBH · DE

Inventors

• Christoph Hamann · Tauberbischofsheim, DE
• Kay Schwarzkopf · Regensburg, DE
• Stefan Kohn · Hohenburg, DE
• Hajo Gugel · Regensburg, DE
• Tim Walde · Regensburg, DE
• Christian Kiefl · Munster, DE

Key dates

• Filing date: Feb 1, 2018
• Grant date: Feb 8, 2022
• Expiry date: Oct 20, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2015/0046
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Various embodiments include a method for the production of a sensor for an exhaust gas stream of an internal combustion engine, wherein the sensor comprises a first electrode and a second electrode. The method comprises: arranging a glass solder in a mold substantially between and substantially insulating the first electrode and the second electrode; arranging an insulating element in the mold in contact with a free surface of the glass solder; and finish molding the glass solder into a glass insulator together with the insulating element in a predetermined position relative to the first electrode and the second electrode. The insulating element shapes the glass insulator during the finish molding and at least partially isolates the glass insulator from the exhaust gas of the internal combustion engine during a measuring operation of the sensor.