公开(公告)号：EP3105119A4

公开(公告)日：2017-10-18

申请号：EP14876835

申请日：2014-12-17

Applicant: X DEV LLC

Inventor： VANDER LIND DAMON ,  DOLAN GEOFF

IPC: B64C11/00 ,  F03D1/02 ,  F03D15/00

CPC classification number: B64C11/343 ,  F03D5/00 ,  F03D7/0224 ,  F05B2240/917 ,  F05B2240/921 ,  Y02E10/70 ,  Y02E10/723 ,  Y02E10/728

Abstract: Apparatus are disclosed that are configured to passively rotate a propeller blade from a first pitch angle to a second pitch angle. An example apparatus involves: (a) a rotor hub, (b) at least one dual-pitch support coupled to the rotor hub, wherein the dual-pitch support has a first surface, a second surface and a cavity defined there between, and (c) at least one propeller blade rotatably coupled to the rotor hub such that a blade root is disposed within the dual-pitch support's cavity, where the blade root's front face is positioned against the dual-pitch support's first surface in a first position and the blade root's back face is positioned against the dual-pitch support's second surface in a second position, and the propeller blade is oriented at a first pitch angle in the first position and is oriented at a second pitch angle in the second position.