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US 2018/0320705 A1Published application
Axial fan with unbalanced blade spacing
AssigneeRobert Bosch GmbH
InventorsRobert J. Van Houten, Yoonshik Shin
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Abstract
An axial fan comprising a hub and a plurality of blades extending from a periphery of the hub. Each of the blades has a thickness which varies from a leading edge to a trailing edge and from a root to a tip. The blades are unevenly spaced around the periphery of the hub in a pattern which is not balanced. The fan is balanced by variance in blade thickness among the plurality of blades.
Claims17
An axial fan comprising:
- a hub;
- and
- a plurality of blades extending from a periphery of the hub,
- wherein each of the plurality of blades has a thickness which varies from a leading edge to a trailing edge and from a root to a tip,
- wherein the plurality of blades are unevenly spaced around the periphery of the hub in a pattern which is not balanced, and
- wherein the fan is balanced by variance in blade thickness among the plurality of blades.
3 more elements
Dependencies are inferred from the claim text.