Patent · US Expired

Apparatus for measuring the flow velocities of gases and liquids

US4412449A · kind A · utility

14Cited by

2References

4Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Kurt Eiermann · Pfungstadt, DE
Wolfgang Schafer · Düren, DE

Key dates

Filing date	Mar 10, 1981
Grant date	Nov 1, 1983
Priority date	—
Expiry date	Mar 10, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG01P5/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for the measurement of the flow velocity of gases and liquids, particularly the intake air of combustion engines, includes one or more temperature dependent at least partially heated resistances disposed behind a protective shield which produces a turbulent flow which flow is rendered laminar by interposing a honeycomb of wire screen between the protective shield and the resistance element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.