Combustion chamber pressure sensor for recording a pressure in a combustion chamber of an internal combustion engine

US8857250B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Christian Doering · Stuttgart, DE
• Janpeter Wolff · Gerlingen, DE

Key dates

• Filing date: Dec 12, 2011
• Grant date: Oct 14, 2014
• Expiry date: Jul 30, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L19/0681
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A combustion chamber pressure sensor is provided for recording a pressure in a combustion chamber of an internal combustion engine, the combustion chamber pressure sensor has a housing having an inner space that is at least partially enclosed by the housing. At least one mechanical-electrical transducer element, for recording the pressure, is accommodated in the housing. The housing has at least one housing opening. The housing opening is sealed by at least one diaphragm. The diaphragm has at least one convex curvature towards the inner space.