Sensor device for detecting a moisture content of a flowing fluid medium

US9903847B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernd Kuenzl · Schwieberdingen, DE
• Andreas Kaufmann · Hohenahr, DE
• Uwe Konzelmann · Asperg, DE
• Frank Steuber · Ditzingen, DE
• Achim Briese · Palo Alto, US

Key dates

• Filing date: Jan 9, 2014
• Grant date: Feb 27, 2018
• Expiry date: Sep 1, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2560/028
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor device includes a moisture module that includes a sensor element for detecting moisture of a fluid medium flowing in a flow direction and a protective membrane screening the sensor element. The sensor device includes a housing, in a measuring chamber of which the moisture module is at least partially situated, and that includes a protective tube extending into the flowing fluid medium in an axial direction perpendicular to the flow direction, the protective tube is designed for flow of the fluid medium into at least one inlet opening, through an inflow path, into the measuring chamber counter to the axial direction, and out of the measuring chamber via an outflow path in the axial direction and an outlet opening, where, with respect to a direction of gravity, the openings are at a bottom of the protective tube.