COMBUSTOR AND GAS TURBINE

PROBLEM TO BE SOLVED: To prevent occurrence of stress caused by pressure fluctuation when attenuating vibration, and to achieve a relatively small-sized configuration.SOLUTION: In a combustor 12, acoustic dampers 1A, 1B, 1C and 1D are provided along an outer surface of a combustion cylinder 33, and...

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Bibliographische Detailangaben
Hauptverfasser:	ONO MASAKI, KONISHI SATORU
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES 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 ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 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 MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent occurrence of stress caused by pressure fluctuation when attenuating vibration, and to achieve a relatively small-sized configuration.SOLUTION: In a combustor 12, acoustic dampers 1A, 1B, 1C and 1D are provided along an outer surface of a combustion cylinder 33, and air vibration of a combustion gas circulating in the combustion cylinder is allowed to flow into the acoustic dampers. The acoustic damper comprises: a passage formed so as to take in air vibration generating at a vibration generation source; and a partition member which blocks a downstream side of propagation of the air vibration in the passage, and which becomes resistance to the air vibration. In an acoustic part between an inlet of the passage and the partition member, the passage is arranged along an axial direction of the combustion cylinder to allow the air vibration to propagate in the reverse direction, and the partition member is arranged in such a manner that it becomes the resistance to the air vibration in each direction.