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Active noise control unit for motor or engine includes oscillating baffle mounted within airflow conduit to exert dynamic effect on air flow
Active noise control unit for motor or engine includes oscillating baffle mounted within airflow conduit to exert dynamic effect on air flow
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机译:电动机或发动机的主动噪声控制单元,包括安装在气流导管内的摆动挡板,可对气流产生动态影响
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摘要
An electro-dynamic or an electromagnetic motor (5) generates a reciprocating motion on an output shaft (4). A shaped element (3) is attached to the end of the output shaft in order to undergo reciprocating movement within the air flow (V). The shaped element (3) exerts a dynamic effect on the air flow. The electro-acoustic source comprises an electro-dynamic or an electromagnetic motor (5) generating a reciprocating motion on an output shaft (4). A shaped element (3) is attached to the end of the output shaft in order to undergo reciprocating movement within the air flow (V). The shaped element (3) exerts a dynamic effect on the air flow. The motor may be either a rotary or a linear device configured to produce a reciprocating movement. It may comprise an oscillating coil mounted within a magnetic induction field. The oscillating action may be provided by the action of a spiral spring which returns the shaft and hence the shaped element (3) to its rest position.
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