ACOUSTIC MEASURING DEVICE

摘要

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).

主权项

1. 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); a rotation speed sensor (7) arranged in the compressor spiral (5); a measurement tube (8) which is connected to the compressor housing outlet (6) and has at least one dynamic pressure sensor (9, 10); 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); a silencer (12) which is connected to the intermediate pipe (11) downstream; and a Laval nozzle (13) which is connected to the silencer (12) viewed in the flow direction (R).