초록 ▼

A fluid dispersal device has a fluid inlet port, a nozzle, a fluid jet passage and an outlet throat provided in a housing and arranged from the upstream side thereof in order. The sidewalls defining the fluid jet passage are composed of deflection walls, turn walls and branch walls arranged in order

A fluid dispersal device has a fluid inlet port, a nozzle, a fluid jet passage and an outlet throat provided in a housing and arranged from the upstream side thereof in order. The sidewalls defining the fluid jet passage are composed of deflection walls, turn walls and branch walls arranged in order from the upstream side thereof. The deflection walls are parallel walls symmetric with respect to the center line of said nozzle, each of the turn walls continues from the downstream end of each of the deflection walls and is formed into a rectangular concave wall, the distance between the opposed rectangular concave walls is larger than that between the deflection walls. The branch walls continue from the downstream ends of the turn walls and project in opposite directions. The outlet throat is defined by the oppositely projecting branch walls. The fluid jet jetted from the nozzle is rightward of leftward deflected due to the interaction between the fluid jet and the deflection walls. The deflection fluid jet is branched by the branch walls into two branch flows in accordance with the amount of deflection thereof. One branch flow is dispersed from the outlet throat while the other branch flow flows into one of the turn walls. The turn walls turn the branch flows and make them collide with the deflected fluid jet perpendicularly to push the deflected fluid jet in a direction opposite to the deflecting direction thereof. Thus, the fluid jet is periodically deflected and oscillated within the fluid jet passage and is dispersed from the outlet throat.

대표청구항 ▼

A fluid dispersal device comprising: a housing having wall means defining a first chamber and a second chamber, which is stepwise widened from said first chamber, in the interior of said housing, said first chamber being unobstructably comunicated with said second chamber a fluid inlet port in a wal

A fluid dispersal device comprising: a housing having wall means defining a first chamber and a second chamber, which is stepwise widened from said first chamber, in the interior of said housing, said first chamber being unobstructably comunicated with said second chamber a fluid inlet port in a wall of said housing for introducing pressurized fluid thereinto; a nozzle in said housing and communicated with said fluid inlet port for jetting the pressurized fluid from said fluid inlet port into said first chamber as a fluid jet; and an outlet throat in a wall of said housing for jetting the fluid jet from said second chamber; said wall means being composed of deflection wall means partly defining said first chamber, for sucking and deflecting the fluid jet jetted from said nozzle due to the interaction therewith in one deflecting direction, said deflection wall means extending sidewards from said nozzle and then extending towards only said outlet throat, branch wall means for branching the deflected fluid jet into two branch flows, one branch flow flowing into said outlet throat and jetting from said outlet throat, and the other branch flow flowing sidewards in said second chamber, and turn wall means extending from said deflection wall means stepwise and in part defining said second chamber for turning said other branch flow and colliding the turned other branch flow with the deflected fluid jet in a direction generally perpendicular to the jetting direction of the deflected fluid jet to push the deflected fluid jet in a direction opposed to the one deflecting direction, said deflection wall means having two opposed deflection wall portions, said turn wall means having two opposed concave-shaped turn portions, the distance between said opposed turn wall portions being larger than that between said opposed deflection wall portions, said branch wall means having two spaced branch wall portions, each projecting from a downstream end of said throat and spaced from each other through a predetermined distance, and said outlet throat being defined in part by said opposed branch wall portions.