公开(公告)号：EP3345830A1

公开(公告)日：2018-07-11

申请号：EP17182195.2

申请日：2017-07-19

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank Bradley ,  SUTTON, Drew Alan

IPC: B64C27/43 ,  B64C27/82 ,  B64C27/78

CPC classification number: B64C27/72 ,  B64C27/43 ,  B64C27/48 ,  B64C27/59 ,  B64C27/78 ,  B64C27/82 ,  B64C2027/8227

Abstract: The present invention includes a rotor hub system (200), comprising: a teetering rotor hub (204, 206) disposed about a mast (202), the teetering rotor hub (204, 206) comprising: a first (208) and a second (218) yoke; each connected to a set of rotor blades (210, 212, 220, 222), wherein the second set of rotor blades (220, 222) and the first set of rotor blades (210, 212) are disposed in a common plane, but the first (208) and the second (218) yoke do not come in contact.

公开(公告)号：EP3498459A1

公开(公告)日：2019-06-19

申请号：EP18155541.8

申请日：2018-02-07

Applicant: Bell Helicopter Textron Inc.

Inventor： SUTTON, Drew Alan ,  OLDROYD, Paul K

IPC: B29C65/00 ,  B29C65/02 ,  B29C65/04 ,  B29C65/06 ,  B32B7/04

Abstract: Systems and methods of constructing a thermoplastic component (120) include joining a thermoplastic skin (102) to a thermoplastic core (104) by introducing heat (108) at an interface (103, 105) of each of the thermoplastic skin (102) and the thermoplastic core (104) to at least partially melt the thermoplastic skin (102) to a thermoplastic core (104) at the interfaces(103, 105), applying pressure to at least one of the thermoplastic skin (102) and the thermoplastic core (104) to sandwich the elements, and cooling the interfaces (103, 105) below the melting point of each of the thermoplastic skin (102) and the thermoplastic core (104) to consolidate the thermoplastic skin (102) and the thermoplastic core (104) into a unitary thermoplastic component (120). An optional thermoplastic film (310) may be disposed between the thermoplastic skin (102) and the thermoplastic core (104). The thermoplastic film (310) may be joined to the thermoplastic core (104) to form an intermediate thermoplastic component (519) prior to joining the thermoplastic skin (102) to the intermediate component (519).

公开(公告)号：EP3345830B1

公开(公告)日：2020-11-25

申请号：EP17182195.2

申请日：2017-07-19

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank Bradley ,  SUTTON, Drew Alan

IPC: B64C27/43 ,  B64C27/82 ,  B64C27/78