| 摘要 |
<p>In a hand-operated applicator (1), the applicator nozzle (25) has an at least two-stage atomizer (100) in which the medium flow is essentially more finely atomized, for example by the Laval effect, after preliminary atomization due to sudden acceleration by a swivelling current of compressed air. For this purpose, compressed air is fed to the applicator nozzle (25) immediately before the nozzle end orifice (80)) through a separate compressed air channel section (96), from a time immediately before conveying of the medium to a time immediately after conveying of the medium. The compressed air can be produced in a simple fashion by a compressed air pump (50) integral with the medium pump (2) and actuated jointly therewith by a single handle (22). The compressed air pump (50) is located in an extender of the medium pump (2) in the immediate vicinity of its outer end, and its pump cylinder (5) is formed by the cap-shaped handle (22). The compressed air flow can also be directed to other desired points on the applicator (1), for example for cleaning the medium discharge channel (24) as far as the applicator nozzle (25), and incorporated in control functions of valves, in particular discharge valves.</p> |
