| 摘要 |
Exceptional atomization of liquids is achieved by combining shock wave formation and vortex generation in a gas stream. In a vortex generating device, a flow passage (11) is aligned with a flow axis (14) connected between a fluid inlet (19) and a fluid outlet (28), and a plurality of tornado-like gas vortices are generated in the flow passage. In one embodiment, a restriction (41) is formed in the fluid inlet, and a source (89) of gas under sufficient pressure to cause sonic velocity at the restriction is connected to the inlet. In another embodiment, a restriction (26) is formed in a downstream portion of a flow passage, and a pair of auxiliary flow passages (32, 30, 33, 31) connect an upstream portion of the flow passage to the restriction. In another embodiment, a fluid outlet (28) has a concave semispherical surface opening into an ambient region. In another embodiment, a first annulus is formed in the flow passage (50) by a rod (54) and a second annulus is formed in the flow passage by the rod and a reduction (57) in cross-sectional area of the flow passage; a source (89) of atomizing gas under pressure and a source (86) of liquid under pressure to be atomized are both connected to the fluid inlet. |
