| 摘要 |
The blower outflow passages comprises thin gaps which are long in relation to their width, and which are positioned around a common central part. - The extent of the gaps (4) in the flow direction is such that with emission of pressurised gas with a critical flow speed, e.g. air at a feed pressure of 6 bars and a temp. of 293 deg. Kelvin, through adiabatic expansion the air jet dynamic pressure in its issue into the surrounding air is considerably higher than that atmospheric. |
