DISPOSITIF DE CONTROLE ACTIF DES INSTABILITES DE COMBUSTION ET DE DECOKEFACTION D'UN INJECTEUR DE CARBURANT

The system includes a detector (50) for measuring fluctuations in pressure in the combustion chamber (51) during the post-combustion period. A circuit (52) is provided for processing the measured signal and developing an electrical control voltage from this signal. A piezoelectric device (53) is arr...

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Bibliographische Detailangaben
Hauptverfasser:	PERRIN JEAN PAUL, BROCARD JEAN MARIE, DESAULTY MICHEL ANDRE ALBERT, VARIZAT ALAIN MICHEL, CAPELLE JEAN YVES
Format:	Patent
Sprache:	fre
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING BURNERS CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MECHANICAL ENGINEERING PHYSICS REGULATING OR CONTROLLING COMBUSTION SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TESTING WEAPONS
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Beschreibung
Zusammenfassung:	The system includes a detector (50) for measuring fluctuations in pressure in the combustion chamber (51) during the post-combustion period. A circuit (52) is provided for processing the measured signal and developing an electrical control voltage from this signal. A piezoelectric device (53) is arranged in the hydraulic supply line to generate fuel flow pulses at the output of the fuel injectors. The piezoelectric device may be mounted in a chamber of given volume fitted before the injection orifice. Alternatively it may be mounted in a restriction before the orifice, or at the orifice itself.