Patent ID: 6431973
Filing Date: 2002-08-13
Classification: F23L,F24F

Abstract:
A structure of a turbine exhauster, said turbine exhausted structurally comprises:a fan assembly; an operating assembly and a fixing assembly; said fan assembly comprises a turbine-like fan with multiple arciform blades, lower ends of said arciform blades are fixed on an external annular seat; said external annular seat comprises an upper support adapted to be rotated by exhaust air at a central location thereof; said operating assembly comprises an upper bearing fixed beneath a top lid of said fan assembly; a mandrel is extended upwardly through a lower bearing to slip a top end thereof into said upper bearing so that said mandrel extends through the fan assembly and supports said fan assembly for rotation; said fixing assembly is a cylindrical structure comprising a cylinder upper portion and a cylindrical lower portion that are slipped one over the other, said upper portion and said lower portion of said central seat are formed respectively from a plurality of upper sheets and a plurality of lower sheets that lap with one another to complete said cylindrical structure, the upper and lower portions are cylindrical shells having sloped end surfaces that are overlapped to form the cylindrical structure of the fixing assembly, the upper and lower portions are independently rotatable such that the mandrel can be positioned substantially vertically even when the turbine exhauster is placed on a roof line that is inclined from the horizontal; the combination of said fan assembly and said operating assembly is mounted on the top of said upper portion of said central seat, a fixing seat is provided on the bottom end of said lower portion of said central seat in favor of assembling of said turbine exhauster on a roof, said fixing seat has an annular central collar being formed by lapping of a plurality of arciform strips; and the connecting points on the components of said fan assembly, said operating assembly and said fixing assembly are provided with mounting holes, said turbine exhauster is adapted to be assembled by securing pull pins or screws into the mounting holes.