ACOUSTIC MEASURING DEVICE

• Main Authors: DRIOT, NICOLAS, NAWRATH, IVO, KROEHLE, FRIEDRICH KARL
• Format: Patent
• Language: English; French
• Published: 31.07.2014
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MEASURING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; NON-POSITIVE DISPLACEMENT PUMPS; PHYSICS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

The invention concerns an acoustic measuring device (1) for an exhaust turbocharger, with a compressor housing (2) which comprises a compressor housing inlet (3), a compressor impeller (4), a compressor spiral (5) and a compressor housing outlet (6); with a rotation speed sensor (7) arranged in the compressor spiral (5); with a measurement tube (8) which is connected to the compressor housing outlet (6) and has at least one dynamic pressure sensor (9, 10); with a flexible intermediate pipe (11) which is connected to the measurement tube (8) downstream viewed in the flow direction (R) of the air (L) emerging from the compressor housing outlet (6); with a silencer (12) which is connected to the intermediate pipe (11) downstream; and with a Laval nozzle (13) which is connected to the silencer (12) viewed in the flow direction (R). L'invention concerne un dispositif de mesure acoustique (1) pour un turbocompresseur d'échappement, ledit dispositif comprenant un carter de compresseur (2) qui comprend un orifice d'entrée de boîtier de compresseur (3), une roue de compresseur (4), une spirale de compresseur (5) et un orifice de sortie de boîtier de compresseur (6) ; un capteur de vitesse de rotation (7) agencé dans la spirale de compresseur (5) ; un tube de mesure (8) qui est raccordé à l'orifice de sortie de boîtier de compresseur (6) et comporte au moins un capteur de pression dynamique (9, 10) ; un tuyau intermédiaire flexible (11) qui est raccordé en aval au tube de mesure (8) lorsqu'on regarde dans la direction de circulation (R) de l'air (L) qui sort de l'orifice de sortie de boîtier de compresseur (6) ; un silencieux (12) qui est raccordé en aval au tuyau intermédiaire (11) ; et une buse de Laval (13) qui est raccordée au silencieux (12) lorsqu'on regarde dans la direction de circulation (R).