Measuring instrument with rectangular flow channel and sensors for measuring the mass of a flowing medium

US6571623B1 · kind B1 · utility

Assignee

• PIERBURG GMBH · DE

Inventors

• Johann Blasczyk · Neuss, DE
• Karl-Heinrich Losing · Alpen, DE
• Thomas Wienecke · Willich, DE
• Peter E. Witkowski · Parker, US

Key dates

• Filing date: Feb 26, 1999
• Grant date: Jun 3, 2003
• Expiry date: Feb 26, 2019

Classification

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

Abstract

A measuring instrument for measuring mass of a flowing medium in which a measuring body extends across the flowing medium and has a rectangular flow channel through which the medium flows. The flow channel has a constricted inlet, a central portion with parallel sides and a widened outlet. A measuring element is supported in the measuring body such that the medium flows thereon. The measuring element carries temperature and heating sensors.