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：US20180252264A1

公开(公告)日：2018-09-06

申请号：US15448136

申请日：2017-03-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Nick Pravanh ,  Michael E. Rinehart ,  Bart Shafer ,  Clegg Smith ,  Jeffrey M. Williams

IPC: F16C29/00 ,  B64C29/00 ,  B64D29/02 ,  F01D15/12 ,  F01D15/02 ,  E05D15/06

CPC classification number: F16C29/008 ,  B64C1/14 ,  B64C7/02 ,  B64C29/0033 ,  B64C29/0091 ,  B64D29/02 ,  B64D29/06 ,  E05D15/0686 ,  E05Y2201/64 ,  E05Y2800/422 ,  E05Y2900/502 ,  F01D15/02 ,  F01D15/12 ,  F05D2220/90 ,  F05D2260/40311 ,  F05D2260/53 ,  F16C29/002 ,  F16C29/007 ,  F16C2204/20 ,  F16C2204/72 ,  F16C2208/82 ,  F16C2326/43

Abstract: A door roller mechanism for cooperation with a roller track including a carriage member having a door attachment feature; at least one roller disposed for rotation on a first side of the carriage member when the carriage member moves in the rolling direction; at least one roller disposed for rotation on an opposite second side of the carriage member when the carriage member moves in the rolling direction; a first rub member disposed on the first side of the carriage; a second rub member disposed on the second side of the carriage; and at least one biasing element disposed on the carriage member for resiliently biasing the first rub member and the second rub member in opposite lateral directions so as to contact a respective first track surface and a second track surface in a manner to dampen lateral vibration of a door connected to the roller mechanism.

公开(公告)号：US20180252263A1

公开(公告)日：2018-09-06

申请号：US15448415

申请日：2017-03-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Nick Pravanh ,  Michael E. Rinehart ,  Bart Shafer ,  Clegg Smith ,  Bruce B. Bacon

IPC: F16C29/00 ,  E05D15/06 ,  B64C29/00 ,  B64D29/02 ,  F01D15/12 ,  F01D15/02

CPC classification number: F16C29/005 ,  B64C1/14 ,  B64C7/02 ,  B64C29/0033 ,  B64C29/0091 ,  B64D29/02 ,  B64D29/06 ,  E05D15/0665 ,  E05D15/0686 ,  E05D2015/1055 ,  E05Y2900/502 ,  F01D15/02 ,  F01D15/12 ,  F05D2220/90 ,  F05D2260/40311 ,  F05D2260/53 ,  F16C29/002 ,  F16C29/007 ,  F16C2204/20 ,  F16C2204/72 ,  F16C2208/82 ,  F16C2326/43

Abstract: A door track assembly for cooperation with a door roller mechanism, including a housing having a longitudinal channel along a length of the housing, wherein the channel descends at an end of the housing to form a stowage recess for the door roller mechanism, and a first track and a second track that are disposed on the housing along a length of the channel and that descend into the stowage recess and along which the door roller mechanism traverses.

公开(公告)号：US11046446B2

公开(公告)日：2021-06-29

申请号：US15661129

申请日：2017-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： Brent C. Ross ,  Michael E. Rinehart ,  Jeffrey M. Williams ,  Clegg Smith ,  Nick Pravanh

IPC: B64D29/06 ,  B64C29/00 ,  B64D29/02 ,  B64C7/02

Abstract: An aircraft including a nacelle disposed at a fixed location relative a wing member; a proprotor housing coupled to the nacelle, the proprotor housing configured to selectively rotate between a horizontal orientation and a non-horizontal orientation; a door pivotably coupled to the proprotor housing; and a linkage to connect the door and the nacelle, the linkage configured to move with the door from a closed position when the proprotor housing is in a horizontal orientation to an open position when the proprotor housing is in a non-horizontal orientation. In some embodiments, there can be a hinge member for hingedly coupling the door to the proprotor and/or nacelle. In other embodiments, the door includes a flexure portion. In some embodiments, the nacelle includes a plurality of doors. In other embodiments, proprotor includes a forward portion and a stationary aft portion; wherein the forward portion is configured to selectively pivot.

公开(公告)号：US10539180B2

公开(公告)日：2020-01-21

申请号：US15448136

申请日：2017-03-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Nick Pravanh ,  Michael E. Rinehart ,  Bart Shafer ,  Clegg Smith ,  Jeffrey M. Williams

IPC: F16C29/00 ,  B64C29/00 ,  B64D29/02 ,  F01D15/12 ,  F01D15/02 ,  E05D15/06

Abstract: A door roller mechanism for cooperation with a roller track including a carriage member having a door attachment feature; at least one roller disposed for rotation on a first side of the carriage member when the carriage member moves in the rolling direction; at least one roller disposed for rotation on an opposite second side of the carriage member when the carriage member moves in the rolling direction; a first rub member disposed on the first side of the carriage; a second rub member disposed on the second side of the carriage; and at least one biasing element disposed on the carriage member for resiliently biasing the first rub member and the second rub member in opposite lateral directions so as to contact a respective first track surface and a second track surface in a manner to dampen lateral vibration of a door connected to the roller mechanism.

公开(公告)号：US10533603B2

公开(公告)日：2020-01-14

申请号：US15448415

申请日：2017-03-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Nick Pravanh ,  Michael E. Rinehart ,  Bart Shafer ,  Clegg Smith ,  Bruce B. Bacon

IPC: F16C29/00 ,  B64C29/00 ,  B64D29/02 ,  F01D15/12 ,  F01D15/02 ,  E05D15/06

Abstract: A door track assembly for cooperation with a door roller mechanism, including a housing having a longitudinal channel along a length of the housing, wherein the channel descends at an end of the housing to form a stowage recess for the door roller mechanism, and a first track and a second track that are disposed on the housing along a length of the channel and that descend into the stowage recess and along which the door roller mechanism traverses.

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：US20180251227A1

公开(公告)日：2018-09-06

申请号：US15661129

申请日：2017-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： Brent C. Ross ,  Michael E. Rinehart ,  Jeffrey M. Williams ,  Clegg Smith ,  Nick Pravanh

IPC: B64D29/06 ,  B64C29/00 ,  B64D29/02

CPC classification number: B64D29/06 ,  B64C7/02 ,  B64C29/0033 ,  B64D29/02

Abstract: An aircraft including a nacelle disposed at a fixed location relative a wing member; a proprotor housing coupled to the nacelle, the proprotor housing configured to selectively rotate between a horizontal orientation and a non-horizontal orientation; a door pivotably coupled to the proprotor housing; and a linkage to connect the door and the nacelle, the linkage configured to move with the door from a closed position when the proprotor housing is in a horizontal orientation to an open position when the proprotor housing is in a non-horizontal orientation. In some embodiments, there can be a hinge member for hingedly coupling the door to the proprotor and/or nacelle. In other embodiments, the door includes a flexure portion. In some embodiments, the nacelle includes a plurality of doors. In other embodiments, proprotor includes a forward portion and a stationary aft portion; wherein the forward portion is configured to selectively pivot.