Patent · US Active

Hot-film air-mass meter having a flow separating element

US8448503B2 · kind B2 · utility

2Cited by

6References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernhard Opitz · Leonberg, DE
Hans Hecht · Stuttgart, DE
Ulrich Wagner · Bernburg, DE
Christoph Gmelin · Stuttgart, DE
Klaus Reymann · Gerlingen, DE

Key dates

Filing date	Jun 14, 2006
Grant date	May 28, 2013
Priority date	—
Expiry date	Sep 20, 2028

Classification

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

Abstract

A hot-film air-mass meter for measuring an air-mass flow which flows in the main direction of the flow, which can be used, in particular, in the intake tract of an internal combustion engine. The hot-film air-mass meter comprises a sensor chip having a measuring surface. The air-mass flow flows essentially parallel over one surface of the sensor chip. A flow separating element is mounted upstream from the measuring surface with respect to the main flow direction. The at least one flow separating element is designed in such a way that the air-mass flow is separated from the measuring surface of the sensor chip in at least one separation zone prior to reaching the measuring surface.

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