Patent · US Active

Fluid flow measuring device, valve device and measuring method

US8573065B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Moritz Krämer · Stuttgart, DE
Hartmut Sauter · Renningen, DE
Holger Christian Schönekess · Gebesee, DE
Hartmut Sohla · Beilstein, DE

Key dates

Filing date	Jun 22, 2011
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Jan 11, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01F15/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to a fluid flow measuring device. The device includes a fluid flow having at least one of a volume flow rate and a mass flow rate. At least one spring element is included, which is exposed to the fluid flow, such that the spring element is elastically displaceable in at least one of a ferromagnetic and an electrically conductive mobile region depending on the dynamic pressure acting thereon with an eddy current sensor arranged stationarily. The eddy current sensor generates a measurement signal that is correlated with a distance between the eddy current sensor and the mobile region. The distance varies with the dynamic pressure-related displacement of the mobile region, and at least one temperature sensor is included, the temperature sensor measures an actual temperature of the fluid flow.

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