Patent · US Active

Filter arrangement

US8128729B2 · kind B2 · utility

1Cited by

9References

17Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Juergen Guenther · Schriesheim, DE
Thomas Stoesser · Viernheim, DE
Heinz Reinhardt · Chadds Ford, US
Christopher Klatt · Heidelberg, DE

Key dates

Filing date	Mar 22, 2011
Grant date	Mar 6, 2012
Priority date	—
Expiry date	Mar 22, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60H2003/0683
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of providing error correction to flow velocity readings of a fluid flowing through a filter arrangement for monitoring the service life of the filter, wherein a filter arrangement, comprising a filter and a sensor device is arranged downstream of the filter, the sensor device including at least one measuring sensor for detecting the flow velocity of the fluid which flows through the filter, and a further measuring sensor for measuring the air humidity of the fluid which flows through the filter. A reading of said second sensor element provides an error correction to the first sensor element.

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