초록 ▼

The liquid spray includes an oscillator for producing a fan spray with liquid droplets of uniform size. The oscillator is constituted by a power nozzle, a pair of side walls forming a pair of vortice spaces offset from the power nozzle, a pair of inwardly extending protuberances or deflectors downst

The liquid spray includes an oscillator for producing a fan spray with liquid droplets of uniform size. The oscillator is constituted by a power nozzle, a pair of side walls forming a pair of vortice spaces offset from the power nozzle, a pair of inwardly extending protuberances or deflectors downstream of which are a pair of inlets to passages leading to exits adjacent the power nozzle, and an outlet throat or aperture having a pair of short wall surfaces defining an exit throat of any value selected from about 30°to about 160°so that the fan angle can be selected to be from about 30°to 160°. This structure results in an oscillator which has a relatively low threshold of pressure at which oscillations are initiated and, most importantly, the liquid is issued in a much more uniform fan pattern than heretofore possible. In a preferred embodiment the liquid is a windshield washer fluid and the oscillator is incorporated in a nozzle for an automobile windshield washer assembly for issuing a fan spray of washer fluid onto the windshield.

대표청구항 ▼

In a liquid oscillator having an oscillation chamber, a power nozzle for introducing a liquid power jet into said chamber, an outlet throat downstream of said power nozzle and a pair of passages having inlet openings to the respective sides of said oulet throat and exit openings adjacent said power

In a liquid oscillator having an oscillation chamber, a power nozzle for introducing a liquid power jet into said chamber, an outlet throat downstream of said power nozzle and a pair of passages having inlet openings to the respective sides of said oulet throat and exit openings adjacent said power nozzle, the improvement wherein said oscillation chamber includes a pair of mirror image wall surfaces beginning immediately downstream of said exit openings and extending to downstream therefrom and defining vortex forming chambers, the downstream end of each said wall surface being shaped to permit vortices formed in said vortex forming chambers to move thereover into said inlet openings, respectively, whereby said liquid power jet is caused to oscillate back and forth in said oscillation chamber.