초록 ▼

A smoke extraction apparatus consists essentially in a structural shape of a type of a molding plane given to the exterior wall of the footing (2), which forms the common base element of the static module and of the dynamic module. The dynamic module can be indiscriminately associated to the footing

A smoke extraction apparatus consists essentially in a structural shape of a type of a molding plane given to the exterior wall of the footing (2), which forms the common base element of the static module and of the dynamic module. The dynamic module can be indiscriminately associated to the footing (2) according to the climatic conditions of the location or according to the desired level of underpressure, wherein the dynamic module is formed by a ferrule (15) made of a lower cylindrical part (16), which lower cylindrical part (16) extends in the upward direction in a truncate-cone part (17), where the truncated-cone part (7) ends in a turned-down exterior edge (18). The ferrule (15) is also formed surrounding the turbine (13) and is surmounted by the truncated-cone muffle (19), where the small base of the truncated-cone muffle (19) is extended upwardly in a neck (21), which neck (21) surrounds the electric motor (14), where the electric motor (14) keeps the turbine (13) in motion.

대표청구항 ▼

A ventilation and extraction apparatus for buildings comprising a base element constituting a footing of a ventilation and extraction apparatus and formed by a ring of a general external truncated-cone form and suitable to be placed at an orifice of smoke ducts on buildings, wherein a contour cone f

A ventilation and extraction apparatus for buildings comprising a base element constituting a footing of a ventilation and extraction apparatus and formed by a ring of a general external truncated-cone form and suitable to be placed at an orifice of smoke ducts on buildings, wherein a contour cone face of the footing presents a continuous and smooth curve when considered in a sectional view of the footing, wherein the continuous and smooth curve exhibits an upper bulge and a lower bulge, and wherein an area of the upper bulge assumes from about 0.25 to 0.33 of a vertical extension of the footing from a top of the footing, and wherein an area of the lower bulge assumes from about 0.67 to 0.75 of the vertical extension of the footing from the top of the footing, wherein a maximum thickness of the upper bulge is from about 0.01 to 0.02 times the vertical extension of the footing, and wherein a maximum thickness of the lower bulge is from about 0.05 to 0.1 of the vertical extension of the footing; one of a static member and a mechanical ventilation element associated with the base element and surmounting the base element.