Driving silencer

The invention relates to a driving silencer. The silencer comprises a shell, wherein the shell is cylindrical, a porous material layer is axially vertically arranged in the cylindrical shell, two sound pressure sensors are arranged in the shell positioned on one side of the porous material layer, a...

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Bibliographic Details
Main Author ZHU CONGYUN
Format Patent
LanguageChinese
English
Published 30.05.2012
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:The invention relates to a driving silencer. The silencer comprises a shell, wherein the shell is cylindrical, a porous material layer is axially vertically arranged in the cylindrical shell, two sound pressure sensors are arranged in the shell positioned on one side of the porous material layer, a disc-shaped rigid plate is arranged in the shell positioned on the other side of the porous material layer, and the rigid plate and the inner wall of the shell are in clearance fit; and signal wires of a first sound pressure sensor and a second sound pressure sensor are connected with an amplifier and a controller through wires. The two sound pressure sensors are arranged in the driving silencer and used for carrying out detection on sound pressure in the cylindrical silencer, the signal is amplified by the amplifier so as to input the controller, and the controller calculates supposed moving distance of the motional rigid plate; at that time, a stepping motor driven by a driver of the stepping motor leads a movabl
Bibliography:Application Number: CN20101558403