Patent · US Expired

Apparatus for measuring a mass flow

US6952971B2 · kind B2 · utility

1Cited by

8References

9Claims

0Family size

Assignee

Schenck Process LLC · US

Inventors

Karl Brotzmann · Amberg, DE
Hans-Georg Fassbinder · Sulzbach-Rosenberg, DE
Hans Kopp · Pfalzgrafenweiler, DE
Karsten Schutte · Amberg, DE

Key dates

Filing date	Aug 22, 2001
Grant date	Oct 11, 2005
Priority date	—
Expiry date	Aug 22, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/80
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a device for measuring a mass flow, comprising a measuring wheel (3) that is supported by a shaft (4) and that is driven and impinged axially by the mass flow. Said wheel deflects the flow, giving it both radial and tangential speed components. The shaft bears an actuation spur wheel (7), which engages with an intermediate spur wheel (8) that is held in position by a force measuring device (14) and has a second meshing with a drive spur wheel (9) that is driven by a drive motor (13). The diameter of the actuation spur wheel (7) is more than 0.3 fold, preferably 0.5 to 1 of the diameter of the measuring wheel (3). This provides a device for measuring a mass flow, which has a high zero constant and thus a high degree of measuring precision, is cost-effective to produce, robust during operation and which has none of the disadvantages of prior art.

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