초록 ▼

An air release box has at least one perforated bottom wall section and perforated longitudinal side wall sections. At least certain of the perforated wall sections, including the perforated bottom wall section, are equipped with spin air outlets for increasing the penetration depth of low turbulence

An air release box has at least one perforated bottom wall section and perforated longitudinal side wall sections. At least certain of the perforated wall sections, including the perforated bottom wall section, are equipped with spin air outlets for increasing the penetration depth of low turbulence air jets into a room. Without such spin air outlets the low turbulence air jets tend to be unstable at relatively low exit velocities. The tendency of these air jets to quickly decay is thus delayed. The highly turbulent air jets exiting from said spin air outlets do not entrain air in the room, but rather they entrain inlet air coming through the perforated wall sections neighboring the spin air outlets. Thus, the jet impulse imparts a high stability to the inlet air jets.

대표청구항 ▼

An air release box for supplying air into a confined space, comprising wall means interconnected to form a box housing, a cover for said box housing, a connection air inlet in said cover for introducing air into said box housing, said wall means including a box bottom opposite said air inlet, said b

An air release box for supplying air into a confined space, comprising wall means interconnected to form a box housing, a cover for said box housing, a connection air inlet in said cover for introducing air into said box housing, said wall means including a box bottom opposite said air inlet, said box bottom having a central perforated bottom wall section with apertures for releasing a low turbulence air flow, said box bottom including two further bottom wall sections slanting in opposite directions away from said perforated central bottom wall section, said wall means further including end walls and perforated side wall sections connecting said bottom wall sections to said cover, said perforated side wall sections having apertures for releasing a low turbulence air flow, and air spin outlet means at least in said central perforated bottom wall section and in said perforated side wall sections for releasing a high turbulence air flow through said spin outlet means, said air spin outlet means being surrounded by said apertures so that said high turbulence air flow through said spin outlet means entrains said low turbulence air flow through said apertures, whereby the stability of the entire air flow into said space is increased.