Patent · US Expired

Method and apparatus for detecting a fouled fluid filter

US5477731A · kind A · utility

95Cited by

2References

9Claims

0Family size

Assignee

Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR

Inventor

Pierre C. Mouton · Grigny, FR

Key dates

Filing date	May 24, 1994
Grant date	Dec 26, 1995
Priority date	—
Expiry date	May 24, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/208
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and apparatus for detecting a fouled fluid filter are disclosed in which the fluid pressure at the outlet of the fluid filter is corrected by a correction pressure to determine a corrected pressure drop. Such a corrected pressure drop has a mathematical function which passes through a maximum magnitude before the fluid flowing through the fluid filter reaches a maximum value. The corrected pressure drop is monitored during the operation of the fluid filter and when the corrected pressure drop reaches a predetermined threshold value, before the engine with which the fluid filter is associated reaches its maximum power, an alarm will be actuated.

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