Patent · US Expired

Apparatus for measuring the flow velocity of gases and liquids

US4449402A · kind A · utility

8Cited by

2References

7Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Kurt Eiermann · Pfungstadt, DE
Eberhard Horlebein · Mainaschaff, DE
Kurt Lissmann · Rodenbach, DE
Wolfgang Schafer · Düren, DE

Key dates

Filing date	Jun 14, 1982
Grant date	May 22, 1984
Priority date	—
Expiry date	Jun 14, 2002

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/692
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

There is described an anemometer for the measurement of the flow velocity of gases and liquids particularly for the measurement of the intake air of internal combustion engines whereby the heated resistances are film resistance made of a metal layer and carrier, should have the shortest possible response time. This is attained by so dimensioning the flow paths (6) in the metal layer (1) that the resulting resistance per unit of surface area stands in a constant ratio to the local heat transfer coefficient.

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