Device for measuring the mass of a flowing medium

US6557408B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Wolfgang Mueller · Rutesheim, DE
• Dieter Tank · Kornwestheim, DE
• Uwe Konzelmann · Asperg, DE

Key dates

• Filing date: May 11, 2001
• Grant date: May 6, 2003
• Expiry date: May 11, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/6842
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The match with a measurement characteristic curve of a device for air flow measurement is disturbed by pulsations, soiling and poor flow behavior. An improvement in the measuring performance of the device is achieved by provisions, which are adapted to one another, for reducing these sources of trouble, according to which the flow cross section of an inlet conduit narrows in a flow direction in the inlet conduit toward a deflection conduit, and a peripheral face of a first portion of the deflection conduit is embodied in inclined fashion, and at least one outer face of a sensor carrier, together with a peripheral face, closer to an outlet conduit, of the inlet conduit, forms a flush transition.