公开(公告)号：US20210387717A1

公开(公告)日：2021-12-16

申请号：US17462546

申请日：2021-08-31

Applicant: Textron Innovations Inc.

Inventor： George Matthew Thompson ,  Jonathan Knoll ,  Paul Sherrill

IPC: B64C11/06 ,  B64C11/30 ,  F01D7/00

Abstract: A rotor assembly has a rotor hub having a unitary structure. The rotor assembly further includes a unitary crosshead having a first upper tab and a first lower tab located vertically below the first upper tab. The first upper tab and the first lower tab define a slot therebetween to accept a first pin of the first rotor blade. A second upper tab and a second lower tab located vertically below the second upper tab define a slot therebetween to accept a second pin of the second rotor blade. A first recess is provided between the first lower tab and the second lower tab so that the crosshead comprises no material directly between at least a portion of the first lower tab and the second lower tab along at least one straight path.

公开(公告)号：US12012200B2

公开(公告)日：2024-06-18

申请号：US17462546

申请日：2021-08-31

Applicant: Textron Innovations Inc.

Inventor： George Matthew Thompson ,  Jonathan Knoll ,  Paul Sherrill

IPC: B64C11/06 ,  B64C11/30 ,  F01D7/00

CPC classification number: B64C11/06 ,  B64C11/30 ,  F01D7/00

Abstract: A rotor assembly has a rotor hub having a unitary structure. The rotor assembly further includes a unitary crosshead having a first upper tab and a first lower tab located vertically below the first upper tab. The first upper tab and the first lower tab define a slot therebetween to accept a first pin of the first rotor blade. A second upper tab and a second lower tab located vertically below the second upper tab define a slot therebetween to accept a second pin of the second rotor blade. A first recess is provided between the first lower tab and the second lower tab so that the crosshead comprises no material directly between at least a portion of the first lower tab and the second lower tab along at least one straight path.