Sensor for determining at least one parameter of a fluid medium flowing through a measuring channel

US10408656B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Achim Briese · Palo Alto, US
• Alexander Markov · Stuttgart, DE
• Edda Sommer · Stuttgart, DE
• Hans Beyrich · Freiberg, DE
• Lutz Westenberger · Waiblingen, DE
• Reinhold Herrmann · Stuttgart, DE
• Thomas Schwartzkopff · Ditzingen, DE
• Uwe Konzelmann · Asperg, DE

Key dates

• Filing date: May 24, 2017
• Grant date: Sep 10, 2019
• Expiry date: Jul 21, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/684
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor for determining at least one parameter of a fluid medium flowing through a measuring channel, in particular an intake air mass flow of an internal combustion engine. The sensor includes a sensor housing, in particular a plug-in sensor which is inserted or is insertable into a flow tube, in which a channel structure is formed, which includes the measuring channel, and at least one sensor chip situated in the measuring channel for determining the parameter of the fluid medium. The sensor housing includes an inlet into the channel structure, which is oriented away from a main flow direction of the fluid medium, and at least one outlet from the channel structure. The channel structure is delimited by wall sections. The wall sections have at least partially electrically insulating properties. Areas of the sensor housing adjoining the wall sections have electrically conductive properties.