Device for measuring at least one parameter of a medium flowing in a line

US6619114B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Thomas Lenzing · Memmingen, DE
• Klaus Reymann · Gerlingen, DE
• Dieter Tank · Kornwestheim, DE
• Uwe Konzelmann · Asperg, DE
• Waldemar Guenther · Bietigheim-Bissingen, DE
• Horst Kubitz · Steinheim an der Murr, DE

Key dates

• Filing date: Dec 11, 2001
• Grant date: Sep 16, 2003
• Expiry date: Dec 11, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F15/125
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a device for measuring at least one parameter of the intake air mass flow of an internal combustion engine. Fluid particles contained in the line act on a measuring element and influence a characteristic curve behavior of the measuring element used to determine parameters of the flowing medium. In order to reduce the action of fluid on the measuring element, the measuring element is disposed in a line or a tubular body, downstream of a protective screen, which deflects the medium flow and deflects the fluid particles. Downstream of the protective screen, longitudinal ribs, a suction opening, or a turbulence generator reduce the release of uncontrolled eddies.