| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collector capable of preventing the injection control value of compressed air from becoming excessive to damage a filter or shorten a lifetime, and becoming excessively small to make the dust brushing-off insufficient even in the case where the dust brushing-off is performed by using a plurality of on-off valves of an identical performance.SOLUTION: On the base end side closer than a portion equipped with the injection port 12 of at least one of a plurality of injector pipes 11, there is arranged an annular contraction part 19 for applying a resistance to the flow of compressed air to be fed to the injector pipes 11. |
