Cooling fan for vehicle radiator
OwnerYi Leeinventor
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Abstract
A cooling fan is disclosed to have a hollow hub, a rim spaced around the hollow hub, and a plurality of blades equiangularly spaced around the hollow hub and respectively connected between the hollow hub and the rim, each blade curving from the hollow hub in a positive sloping and then in a negative sloping toward the rim and having a plurality of grooves arranged in parallel on one surface thereof in a curvature corresponding to the profile of the blades.
Claims8
A cooling fan comprising a hollow hub, a rim spaced around said hollow hub, and a plurality of blades equiangularly spaced around said hollow hub and respectively connected between said hollow hub and said rim, wherein said blades are curving from said hollow hub toward said rim, each having a plurality of grooves arranged in parallel on one surface thereof in a curvature corresponding to the profile of said blades.
Dependencies are inferred from the claim text.