| 摘要 |
Inlet means supplies a continuous flow of gas with a swirl velocity and at a chosen static pressure to a chamber to establish a free vortex flow therein. Surfaces define an annular path within the chamber that maintains the free vortex flow and guides it toward chamber outlet means. That portion of the chamber not including the annular path becomes pressurized to the supply static pressure of the gas, while the static pressure of the gas within the path changes with its distance from the vortex axis. By properly spacing and locating the inlet means from the outlet means and by properly sizing the annular path, the discharge static pressure of the gas can be controlled.
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