Patent ID: 6494152
Filing Date: 2002-12-17
Classification: F01D,F04D,F05D

Abstract:
A housing for a fan that rotates about an axis of rotation to draw air into the housing and discharge the air from the housing, the fan axis of rotation defining mutually perpendicular axial and radial directions relative to the housing, the housing comprising:a housing section having a top wall with a peripheral edge, a side wall that extends around at least a portion of the peripheral edge, a bottom wall flange that is spaced axially from the top wall by the side wall, a tubular transition that extends outwardly from the side wall to a distal end of the transition that defines a discharge opening of the transition, the transition projecting from the housing section in a direction axially away from the bottom wall flange to the transition distal end and in a direction radially away from the side wall to the transition distal end, and an outwardly expanding portion of the housing section having a length with opposite first and second ends that extends across the top wall and progressively protrudes axially outwardly from the top wall as it extends from the first end to the second end.