Patent · US Expired

Flow rate meter

US4346589A · kind A · utility

5Cited by

4References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Kienzle · Hemmingen, DE
Werner Paschke · Schwieberdingen, DE
Erwin Nagele · Hessigheim, DE

Key dates

Filing date	Sep 19, 1980
Grant date	Aug 31, 1982
Priority date	—
Expiry date	Sep 19, 2000

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/28
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A flow rate meter is proposed which serves to ascertain the quantity of a flowing medium particularly the quantity of air aspirated by an internal combustion engine via an air intake tube. The flow rate meter includes a measuring device pivotable in a flow channel about a support shaft downstream of which measuring device the flow channel is suddenly enlarged at several zones in order to reduce the measurement error at a maximal flow rate of the medium.

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