公开(公告)号：US10377502B2

公开(公告)日：2019-08-13

申请号：US15410015

申请日：2017-01-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Bruce Bennett Bacon ,  John Elton Brunken, Jr. ,  Michael Edwin Rinehart ,  Nick Pravanh

IPC: B64D27/26 ,  B64C29/00 ,  F02C7/20 ,  F16F15/06 ,  B64C27/00 ,  B64D27/00 ,  B64D29/02 ,  F16B2/06 ,  B64D27/10 ,  F16F1/16

Abstract: An engine mount assembly for coupling an engine to an airframe. The engine mount assembly includes a torsion bar coupled to the engine and a lateral movement control assembly coupled between the torsion bar and the airframe. The lateral movement control assembly includes a spring having a lateral stiffness. The torsion bar rotates in response to lateral movement of the engine such that the lateral movement of the engine is controllable based on the lateral stiffness of the spring.

公开(公告)号：US20170217594A1

公开(公告)日：2017-08-03

申请号：US15410706

申请日：2017-01-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Bruce Bennett Bacon ,  Michael Edwin Rinehart ,  Thomas Boudreau

IPC: B64D27/00 ,  F16B2/06 ,  B64D29/02 ,  B64C27/00 ,  B64C29/00

CPC classification number: B64D27/26 ,  B64C27/00 ,  B64C29/0033 ,  B64D27/00 ,  B64D27/10 ,  B64D29/02 ,  B64D2027/262 ,  F02C7/20 ,  F05D2260/36 ,  F16B2/06 ,  F16F1/16 ,  F16F15/063 ,  Y02T50/672

Abstract: A rotorcraft, such as a tiltrotor aircraft having helicopter and airplane modes, includes an airframe, an engine and an engine mount assembly for coupling the engine to the airframe. The engine includes an engine lug forming an aperture. The engine mount assembly includes a mount having an aperture substantially aligned with the engine lug aperture. A sleeved bolt assembly extends through the apertures to secure the engine lug to the mount. The sleeved bolt assembly includes a bolt undersized relative to the apertures forming a circumferential gap within the apertures, a sleeve disposed around at least a portion of the bolt substantially filling the circumferential gap and a nut adapted to thread onto a threaded portion of the bolt. The use of the undersized bolt within the sleeve permits increased clearance between the sleeved bolt assembly and the engine while maintaining strength requirements in high load environments.

公开(公告)号：US20170217597A1

公开(公告)日：2017-08-03

申请号：US15410015

申请日：2017-01-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Bruce Bennett Bacon ,  John Elton Brunken, JR. ,  Michael Edwin Rinehart ,  Nick Pravanh

IPC: B64D27/26 ,  B64C29/00

CPC classification number: B64D27/26 ,  B64C27/00 ,  B64C29/0033 ,  B64D27/00 ,  B64D27/10 ,  B64D29/02 ,  B64D2027/262 ,  F02C7/20 ,  F05D2260/36 ,  F16B2/06 ,  F16F1/16 ,  F16F15/063 ,  Y02T50/672

Abstract: An engine mount assembly for coupling an engine to an airframe. The engine mount assembly includes a torsion bar coupled to the engine and a lateral movement control assembly coupled between the torsion bar and the airframe. The lateral movement control assembly includes a spring having a lateral stiffness. The torsion bar rotates in response to lateral movement of the engine such that the lateral movement of the engine is controllable based on the lateral stiffness of the spring.

公开(公告)号：US20190329863A1

公开(公告)日：2019-10-31

申请号：US15963283

申请日：2018-04-26

Applicant: Bell Helicopter Textron Inc.

Inventor： James Elbert King ,  Michael Edwin Rinehart ,  William S. Atkins

IPC: B64C3/56 ,  B64D27/26 ,  B64C29/00 ,  B64C3/18

Abstract: A propulsion and lift system for an aircraft includes a wing having an outboard end and a pylon assembly coupled to the outboard end of the wing. The propulsion and lift system also includes a wing extension rotatably coupled to the outboard end of the pylon assembly. The wing extension is rotatable between a flight position in a flight mode and a stow position in a storage mode. The wing extension folds inboard in the stow position, thereby reducing a wingspan of the aircraft in the storage mode.

公开(公告)号：US20190112028A1

公开(公告)日：2019-04-18

申请号：US15787148

申请日：2017-10-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Jeffrey Matthew Williams ,  George Ryan Decker ,  Michael Edwin Rinehart ,  Andrew G. Baines ,  James Elbert King

IPC: B64C7/02 ,  B64C3/26

Abstract: A propulsion and lift system of a tiltrotor aircraft includes a wing having an outboard end, a wing tip assembly having an inboard end, a fixed nacelle coupled to the wing tip assembly and a wing-nacelle splice assembly having inboard and outboard sides. The inboard side of the wing-nacelle splice assembly is coupled to the outboard end of the wing, and the outboard side of the wing-nacelle splice assembly is coupled to the inboard end of the wing tip assembly, thereby coupling the fixed nacelle to the wing.

公开(公告)号：US10220951B2

公开(公告)日：2019-03-05

申请号：US15410706

申请日：2017-01-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Bruce Bennett Bacon ,  Michael Edwin Rinehart ,  Thomas Boudreau

IPC: B64D27/26 ,  B64C29/00 ,  F02C7/20 ,  F16F15/06 ,  B64C27/00 ,  B64D27/00 ,  B64D29/02 ,  F16B2/06 ,  B64D27/10 ,  F16F1/16

Abstract: A rotorcraft, such as a tiltrotor aircraft having helicopter and airplane modes, includes an airframe, an engine and an engine mount assembly for coupling the engine to the airframe. The engine includes an engine lug forming an aperture. The engine mount assembly includes a mount having an aperture substantially aligned with the engine lug aperture. A sleeved bolt assembly extends through the apertures to secure the engine lug to the mount. The sleeved bolt assembly includes a bolt undersized relative to the apertures forming a circumferential gap within the apertures, a sleeve disposed around at least a portion of the bolt substantially filling the circumferential gap and a nut adapted to thread onto a threaded portion of the bolt. The use of the undersized bolt within the sleeve permits increased clearance between the sleeved bolt assembly and the engine while maintaining strength requirements in high load environments.