Detection of the clogging of a fluid filter

The method involves measuring pressure difference between an upstream and a downstream of a fluid filter (20) by a sensor (160) at successive sampling instants. Derivative of the pressure difference with respect to time is calculated at different instants by a logic controller (165). A filter cloggi...

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Bibliographische Detailangaben
Hauptverfasser:	COLOTTE, BAPTISTE, GEREZ, VALERIO, MASSOT, GILLES
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The method involves measuring pressure difference between an upstream and a downstream of a fluid filter (20) by a sensor (160) at successive sampling instants. Derivative of the pressure difference with respect to time is calculated at different instants by a logic controller (165). A filter clogging signal is sent when the derivative is equal to zero. A threshold signal is sent when the pressure difference exceeds a threshold value, before sending the clogging signal. An independent claim is also included for a device for detecting clogging of a fluid filter, mounted on a fluid system.