公开(公告)号：US11891169B2

公开(公告)日：2024-02-06

申请号：US16563732

申请日：2019-09-06

Applicant: Bell Textron Inc.

Inventor： Paul Branson Sherrill ,  Robert Alan Self

IPC: B64C27/473 ,  F01D5/14 ,  B64F5/10 ,  B29K705/08 ,  B29C70/48 ,  B29L31/08

CPC classification number: B64C27/473 ,  B64F5/10 ,  F01D5/147 ,  B29C70/48 ,  B29K2705/08 ,  B29L2031/082 ,  B64C2027/4733 ,  F05D2230/50 ,  F05D2300/2263 ,  F05D2300/44

Abstract: In an implementation, a rotor blade (alternatively referred to herein as “blade”) for a helicopter or other aircraft may include an outer layer. The outer layer may define a cavity. The outer layer may at least partially correspond to an airfoil, e.g., a wing. One or more inserts may be included within the cavity and be encompassed thereby. The first insert may have a density of at least 0.6 pounds per cubic inch.

公开(公告)号：US20210078699A1

公开(公告)日：2021-03-18

申请号：US16575329

申请日：2019-09-18

Applicant: Bell Textron Inc.

Inventor： Paul Branson Sherrill ,  Robert Patrick Wardlaw ,  Robert Alan Self

IPC: B64C27/473 ,  B64C27/00 ,  F01D5/28 ,  B29D99/00

Abstract: In an implementation, a rotor blade for a helicopter may include an outer layer. The outer layer may have a leading edge region and a trailing edge region and may define a cavity. The leading edge region may include a first shape at least partially corresponding with an airfoil, e.g., a wing. An insert may be included within the cavity and be encompassed thereby. The insert may include a shape that substantially corresponds with the first shape, e.g., the insert may substantially correspond with a leading edge of an airfoil. The insert may have a plurality of weight shot each of which may be surrounded by a binding agent.

公开(公告)号：US20210070433A1

公开(公告)日：2021-03-11

申请号：US16563732

申请日：2019-09-06

Applicant: Bell Textron Inc.

Inventor： Paul Branson Sherrill ,  Robert Alan Self

IPC: B64C27/473 ,  F01D5/14 ,  B64F5/10

Abstract: In an implementation, a rotor blade (alternatively referred to herein as “blade”) for a helicopter or other aircraft may include an outer layer. The outer layer may define a cavity. The outer layer may at least partially correspond to an airfoil, e.g., a wing. One or more inserts may be included within the cavity and be encompassed thereby. The first insert may have a density of at least 0.6 pounds per cubic inch.