Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 20, 2021
Patent Application Number
15923749
Date Filed
March 16, 2018
Patent Primary Examiner
Patent abstract
A fan rotor for a ram air fan includes a hub and blades extending radially outwards from the hub. The hub includes an inner hub portion, a disk portion connected to a radially outer surface of the inner hub portion, and an outer hub portion connected to a radially outer surface of the disk portion. The outer hub portion has an upstream arm with a compound contoured surface. The compound contoured surface is configured to direct air flow around the compound contoured surface and along roots of the blades.
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