公开(公告)号：US20220126991A1

公开(公告)日：2022-04-28

申请号：US17082601

申请日：2020-10-28

Applicant: Bell Textron Inc.

Inventor： Aaron Alexander Acee ,  Andrew Paul Haldeman ,  Paul Wayne Woolbright ,  Timothy McClellan Mosig

IPC: B64C27/35 ,  B64C27/48

Abstract: A rotor system includes a drive hub, a set of rotor blades extending radially from the drive hub, and a set of tension-torsion straps connecting the rotor blades to the drive hub. The drive hub has a rotor mast opening extending along a mast axis. The rotor system is configured to rotate about the mast axis. The drive hub further has a set of mounting slots for mounting the tension-torsion straps. The mounting slots are arranged along a circle around the drive hub, each mounting slot extending through the drive hub along a respective mounting axis. The mounting axis of each of the mounting slots is biased relative to the mast axis. The tension-torsion straps are mounted to the drive hub at their corresponding mounting slots.

公开(公告)号：US11279477B2

公开(公告)日：2022-03-22

申请号：US16358268

申请日：2019-03-19

Applicant: Bell Textron Inc.

Inventor： Aaron Alexander Acee ,  Andrew Paul Haldeman

IPC: B64C27/82 ,  B64C27/06 ,  B64C27/52

Abstract: An exemplary anti-torque system for a helicopter includes two or more electric fans rotatably mounted on a tail boom, the two or more electric fans rotatable about a longitudinal axis of the tail boom.

公开(公告)号：US20210291989A1

公开(公告)日：2021-09-23

申请号：US16824488

申请日：2020-03-19

Applicant: Bell Textron Inc.

Inventor： Andrew Paul Haldeman ,  Amarjit Olenchery Kizhakkepat ,  Gary Miller ,  Diana Tinlin ,  Glenn Shimek

IPC: B64D13/00 ,  F01D5/10 ,  F01D25/12 ,  B64C27/00 ,  B64C7/00 ,  B64C27/06 ,  B64C27/473

Abstract: One embodiment is a rotor system including a rotor hub comprising a plurality of extension arms for connecting rotor blades to the rotor hub; a plurality of dampers connected between a respective one of the extension arms and the rotor hub; and a fairing disposed over the rotor hub, the fairing including an inlet plenum through which air is drawn from outside the fairing into the fairing; and at least one duct for conducting the air toward the at least one of the dampers.