| 摘要 |
A multi-channel nozzle for a pressurized gas, which nozzle may be connected to various blowing tools of conventional design or directly to a distribution conduit. Peripheral primary flow channels (31) are arranged in the outlet of the nozzle, and inside these secondary flow channels (32) connected to a pressure regulating unit (21). This include at least one regulating passage (27, 29) and at least one reservoir chamber (28) which reduce the pressure of the gas which flow out of the central parts of the nozzle. This gives rise to a secondary flow which co-operates with a primary flow coming from the outer areas of the nozzle. The nozzle design provides a marked lower noise level and increased power density with the blowing power retained. |
