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Industrial Velera Marsal SA
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Industrial Velera Marsal SA
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Structures Of Non-Positive Displacement Pumps
(AREA)
Nozzles For Electric Vacuum Cleaners
(AREA)
Abstract
Sirena manual, que consiste en un rodete centrífugo provisto de salidas de aire radiales, que gira en el interior de una caja cerrada y provista de una pluralidad de aberturas coincidentes en número y forma con las salidas del rodete, que recibe el impulso a través de dos trenes de engranajes multiplicadores giran dentro de un espacio cerrado provisto de lubrificante.