초록 ▼

An improved fan of the centrifugal type for bathrooms and the like has a housing with a base wall and four depending side walls. An exhaust outlet fitting in one of the walls has an integral centrifugal fan outlet cutoff. A venturi plate, positioned within the side walls and parallel but spaced from

An improved fan of the centrifugal type for bathrooms and the like has a housing with a base wall and four depending side walls. An exhaust outlet fitting in one of the walls has an integral centrifugal fan outlet cutoff. A venturi plate, positioned within the side walls and parallel but spaced from the base wall contains an inlet opening for the fan. The portion of the plate surrounding the opening is formed as a venturi. The inlet opening is spanned by a strut means to support the motor driving the centrifugal impeller. The struts have a generally T-shaped configuration so as to be removed from the portion of the opening adjacent the exhaust outlet fitting, thereby to enhance the efficiency of the fan. The base wall and one of the sidewalls contains reinforced holes for receiving the wiring. A flap in the housing covers the one of the holes not used for wiring connection purposes. The holes are located adjacent a corner of the housing and a corner separator separates the holes, flap, and associated wiring from the remainder of the housing.

대표청구항 ▼

A fan comprising: a housing having a base wall with four side walls attached thereto; baffle means positioned within said side walls to form at least a portion of a centrifugal fan scroll; exhaust outlet means in one of said side walls; a venturi plate positioned within said side walls and lying par

A fan comprising: a housing having a base wall with four side walls attached thereto; baffle means positioned within said side walls to form at least a portion of a centrifugal fan scroll; exhaust outlet means in one of said side walls; a venturi plate positioned within said side walls and lying parallel to, but spaced from, said base wall to form a blower chamber containing said fan scroll, said venturi plate containing an opening, the portion of said venturi plate surrounding said opening being formed as a venturi leading into said blower chamber, said venturi plate having strut means spanning said opening so as to be removed from the portion of said opening adjacent said exhaust outlet means, said strut means being formed of portions of said plate and being integral with said plate; a centrifugal blower impeller in said blower chamber positioned in alignment with said opening for drawing air through said opening and discharging same through said exhaust outlet means; and a motor mounted on said strut means having an output shaft on which said impeller is mounted.