公开(公告)号：US12091167B1

公开(公告)日：2024-09-17

申请号：US17948135

申请日：2022-09-19

Applicant: Wisk Aero LLC

Inventor： Geoffrey Alan Long ,  Chase Nichols ,  Patrick Kelly

IPC: B64C27/54 ,  B64C11/48 ,  B64C27/50 ,  B64D35/00

CPC classification number: B64C27/54 ,  B64C11/48 ,  B64C27/50 ,  B64D35/00

Abstract: Embodiments provide scissoring mechanisms for a vertical lift fan of an electric aircraft (e.g., a vertical take-off-landing eVTOL aircraft) where the blades of the vertical lift fan can be opened at almost zero speed. Exemplary scissoring mechanisms have position locking features that keep the collapsed blades in the low drag orientation once closed (e.g., in the stowed position). As a result, the scissoring mechanisms do not cause large impulses during opening and closing that cause large stresses and noise. In addition, the scissoring mechanisms provide an opportunity to check that the fans are opened properly prior to spinning them to the full operating speed. The scissoring mechanisms may not require an extra actuator, and rely on the propulsion motor.

公开(公告)号：US20240246670A1

公开(公告)日：2024-07-25

申请号：US18417276

申请日：2024-01-19

Applicant: Wisk Aero LLC

Inventor： Geoffrey Alan Long ,  Chase Nichols ,  Patrick Kelly

IPC: B64C29/00 ,  B64C27/26

CPC classification number: B64C29/0033 ,  B64C27/26

Abstract: Embodiments provide mechanisms for coupling rotor blade pitch to propulsion system tilt angle in an aircraft, and more specifically in electric aircrafts. A system may include a tiltable propulsion system configured to move between a first tilt angle and a second tilt angle, wherein the tiltable propulsion system includes a plurality of rotor blades each configured to move between a first pitch position and a second pitch position; a tilting mechanism coupled to the tiltable propulsion system and configured to move the tiltable propulsion system between the first tilt angle and the second tilt angle; a pitching mechanism coupled to one or more of the plurality of rotor blades and configured to move one or more of the plurality of rotor blades between the first pitch position and the second pitch position; and an actuator configured to operate both the tilting mechanism and the pitching mechanism simultaneously.