Motor cooling fan housing.

摘要

A motor cooling fan housing (40) for a by-pass vacuum motor is presented. The fan housing (40) includes a top plate (42) connected to a cylindrical side portion (44). The top plate (42) is characterized by a plurality of uniformly spaced tear-drop shaped slots (48) therein. The slots provide for the entry of cooling air to the motor maintained therein. The slots (48) are elongated and have a major axis which is noncollinear with the center point (50) of the top plate (42) of the housing.