| 摘要 |
<p>A nozzle assembly has a nozzle body (15) which has a fluid passage (11) with a conical nozzle port (13) at its front end. Inlet ports (20,25) open into the fluid passage (11) in tangential directions, and a control valve (30) is located in the fluid passage (11) so as to move axially of the fluid passage (11) to control the cross-sectional areas of the inlet ports (20,25). The nozzle assembly can eject either a diffused fluid in the form of a cone, or a sprayed fluid, and the diffusion angle can be varied when the ejection speed or viscosity of the fluid vary.</p> |
