초록 ▼

A molded fluidic device having a power nozzle with a width W and a coupling passage coupling a source of fluid to said power nozzle. The coupling passage has a planar enlargement and a plurality of posts spaced across the enlargement, the spacing S between each post being less than the width of the

A molded fluidic device having a power nozzle with a width W and a coupling passage coupling a source of fluid to said power nozzle. The coupling passage has a planar enlargement and a plurality of posts spaced across the enlargement, the spacing S between each post being less than the width of the power nozzle with the sum of spacing S being greater than the width W.

대표청구항 ▼

[ What is claimed is:] [3.] In a molded fluidic spray device having a power nozzle with a width W and a coupling passage coupling a source of liquid under pressure to said power nozzle, the improvement wherein said coupling passage has a planar enlargement and a plurality of posts spaced across said

[ What is claimed is:] [3.] In a molded fluidic spray device having a power nozzle with a width W and a coupling passage coupling a source of liquid under pressure to said power nozzle, the improvement wherein said coupling passage has a planar enlargement and a plurality of posts spaced across said planar enlargement, the space S between each post being less than the width of said power nozzle with the sum of spacing S being substantially greater than said width W and wherein said device includes a planar fluidic oscillator and wherein said enlargement is coplanar with said planar fluidic oscillator and the dimensions of said coupling passage, said planar enlargement and all said spacings S are such that the fluidic flow rate from said source to said power nozzle is substantially unaffected when one or more foreign particles obstructs any one of or more of said spaces.