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US 6,648,602 B2Granted
Fan having balancing blade sets
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsAlex Horng, Ching-Shen Hong
Life of this patent
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Abstract
A fan having balancing blade sets is disclosed herein comprising a central hub, a shaft and a plurality of blade sets. The blade sets are radially extended from an outer circumference of the central hub and each blade set is uniformly formed within an appropriate angular length to ensure stable rotation. Each blade set is comprised of various blade designs to enhance blowing efficiency.
Claims5
A fan having balancing blade sets, including:
- a central hub;
- a shaft axially extending from the central hub;
- and
- at least three blade sets radially extended from an outer circumference of the central hub and being adapted to fit within an appropriate angular length, thereby ensuring stable rotation,
- wherein the blade set comprises at least one axial blade and one blower blade, and
- wherein the blower blade further comprises a skewed portion on its top and an extended portion on its outer end.
3 more elements
A fan having balancing blade sets, including
- a central hub;
- a shaft axially extending from the central hub;
- and
- at least three blade sets radially extended from an outer circumference of the central hub and being adapted to fit within an appropriate angular length, thereby ensuring stable rotation,
- wherein each respective one of said blade sets comprises at least two skewed blades having various angles with respect to an axis of the fan.
2 more elements
A fan having balancing blade sets, including
- a central hub;
- a shaft axially extending from the central hub;
- and
- at least three blade sets radially extended from an outer circumference of the central hub and being adapted to fit within an appropriate angular length, thereby ensuring stable rotation,
- wherein each respective one of said blade sets includes a plurality of curved blower blades attached to an annular flange of the central hub.
2 more elements
Dependencies are inferred from the claim text.