公开(公告)号：EP2619086B1

公开(公告)日：2014-03-19

申请号：EP10859595.0

申请日：2010-11-12

Applicant: Bell Helicopter Textron Inc.

Inventor： SHERRILL, Paul, B. ,  STAMPS, Frank, B. ,  MEASOM, Ronald, J.

IPC: B64C27/473 ,  B64C27/00 ,  B29C70/30

CPC classification number: B64C27/473 ,  B29C70/30 ,  B29L2031/085 ,  B64C27/008 ,  B64C2027/4736 ,  Y02E10/721 ,  Y02P70/523 ,  Y10T428/24992

公开(公告)号：EP2018212B1

公开(公告)日：2013-07-10

申请号：EP07794847.9

申请日：2007-05-14

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B. ,  RAUBER, Richard, E. ,  CAMPBELL, Thomas, C. ,  DONOVAN, Tom ,  TISDALE, Patrick, R. ,  BRASWELL, James Lee Jr.

IPC: B64C27/33 ,  B64C27/32 ,  B64C29/00

CPC classification number: B64C27/33 ,  B64C27/32 ,  B64C29/0033

公开(公告)号：EP2406518A1

公开(公告)日：2012-01-18

申请号：EP09841621.7

申请日：2009-03-12

Applicant: Bell Helicopter Textron Inc.

Inventor： SMITH, Michael, R. ,  STAMPS, Frank, B.

IPC: F16F5/00

CPC classification number: F16F15/027 ,  B64C27/001 ,  B64C2027/002 ,  B64C2027/005 ,  F16F7/108 ,  F16F2224/0283

Abstract: A vibration isolator having a housing defining a fluid chamber, piston assembly, tuning passage, and a switchable fluid path assembly for changing the isolation frequency of the vibration isolator. The piston assembly is resiliently disposed within the housing. A vibration tuning fluid is allowed to flow within the housing. Actuation of a valve in the switchable fluid path assembly selectively controls fluid flow within the fluid path of the switchable fluid path assembly.

公开(公告)号：EP2387530A1

公开(公告)日：2011-11-23

申请号：EP09838517.2

申请日：2009-01-19

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B. ,  TISDALE, Patrick, R. ,  CAMPBELL, Thomas, C. ,  RAUBER, Richard, E. ,  BRASWELL, James, L., Jr.

IPC: B64C27/04

CPC classification number: B64C27/33 ,  B64C27/32

Abstract: A yoke and bearing fitting assembly for a multi-blade aircraft rotor is disclosed. The assembly has a yoke having arms extending generally radially from a central portion of the yoke, the arms each having opposing surfaces. An aperture is formed in each arm and extends between the surfaces. A bearing fitting has a body configured for insertion into the aperture of the yoke and has two rims protruding from a periphery of the body, the body also having a bearing mount adapted for mounting a pitch change bearing assembly to the yoke. Each rim abuts one of the surfaces of the associated yoke arm when the bearing fitting is installed within the aperture, so as to create clamping forces between the rims and the arm and the arm. The bearing fitting transmits forces from the pitch bearing assembly into the yoke.

公开(公告)号：EP2240366A1

公开(公告)日：2010-10-20

申请号：EP08780416.7

申请日：2008-02-12

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B. ,  BRASWELL, James, L. ,  HAYNIE, David, A. ,  YUCE, Mithat

IPC: B64C27/51

CPC classification number: B64C27/51 ,  F16F13/08

Abstract: A lead-lag damper for a rotor assembly has a body mounted to either an inboard portion of a blade assembly or a fixed portion of the rotor assembly. A piston carried within the body is configured to allow for relative motion between the body and the piston. The piston defines opposing chambers within the body, the chambers being in fluid communication through a fluid passage. A link connects the piston to the other of the inboard portion of the blade assembly and the fixed portion of the rotor assembly, and the link engages a central portion of the piston. The piston acts on fluid in the chambers during relative motion between the piston and the body and causes fluid flow between the chambers through the fluid passage. Flow through the passage acts to damp lead-lag motion of the blade assembly relative to the fixed portion of the rotor assembly.

公开(公告)号：EP2150460A1

公开(公告)日：2010-02-10

申请号：EP07861293.4

申请日：2007-04-24

Applicant: Bell Helicopter Textron Inc.

Inventor： RAUBER, Richard, E. ,  POPELKA, David, A. ,  STAMPS, Frank, B.

IPC: B64C27/32 ,  F16C15/00

CPC classification number: B64C27/32 ,  B06B1/164 ,  B64C27/001 ,  B64C2027/003 ,  B64C2027/004 ,  F16F7/1011 ,  F16F15/14

Abstract: A vibration attenuator for an aircraft has at least one weight mounted in a rotating system of a rotor hub of the aircraft, each weight being rotatable about an axis of rotation of the hub relative to the hub and to each other weight. Drive means are provided for rotating each weight about the axis of rotation at a selected speed for creating oscillatory shear forces that oppose and attenuate rotor-induced vibrations having a selected frequency.

公开(公告)号：EP1334289B1

公开(公告)日：2008-07-09

申请号：EP01973531.5

申请日：2001-09-26

Applicant: Bell Helicopter Textron Inc.

Inventor： SMITH, Michael, R. ,  STAMPS, Frank, B. ,  PASCAL, Robert, J.

IPC: F16F7/10 ,  B64C27/00

CPC classification number: F16F7/10 ,  B64C27/001 ,  B64C2027/005

Abstract: A tunable vibration isolator (451, 551, 651, 681, 691, 721, 801, 901, 973) with active tuning elements (473, 475, 573, 673, 675, 689, 705, 707, 745, 747, 747, 819a, 819b) having a housing which defines fluid chambers. A piston (455, 555, 655, 695, 725, 805, 970) is disposed within the housing. A vibration isolation fluid is disposed within the fluid chambers. A passage (463, 563, 663, 735, 881, 904) having a predetermined diameter extends through the piston to permit the vibration isolation fluid to flow from one fluid chamber to the other. The tunable vibration isolator may employ either a solid tuning mass approach or a liquid tuning mass approach. In either case, active tuning elements, or actuators, are disposed in the fluid chambers to selectively tune the vibration isolator.

公开(公告)号：EP1334289A1

公开(公告)日：2003-08-13

申请号：EP01973531.5

申请日：2001-09-26

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： SMITH, Michael, R. ,  STAMPS, Frank, B. ,  PASCAL, Robert, J.

IPC: F16F7/10

CPC classification number: F16F7/10 ,  B64C27/001 ,  B64C2027/005

Abstract: A tunable vibration isolator (451, 551, 651, 681, 691, 721, 801, 901, 973) with active tuning elements (473, 475, 573, 673, 675, 689, 705, 707, 745, 747, 747, 819a, 819b) having a housing which defines fluid chambers. A piston (455, 555, 655, 695, 725, 805, 970) is disposed within the housing. A vibration isolation fluid is disposed within the fluid chambers. A passage (463, 563, 663, 735, 881, 904) having a predetermined diameter extends through the piston to permit the vibration isolation fluid to flow from one fluid chamber to the other. The tunable vibration isolator may employ either a solid tuning mass approach or a liquid tuning mass approach. In either case, active tuning elements, or actuators, are disposed in the fluid chambers to selectively tune the vibration isolator.

公开(公告)号：EP2678221B1

公开(公告)日：2014-12-31

申请号：EP11866409.3

申请日：2011-05-20

Applicant: Bell Helicopter Textron Inc.

Inventor： STAMPS, Frank, B.

IPC: B64C27/605 ,  F01D7/00

CPC classification number: F01D7/00 ,  B64C11/06 ,  B64C11/32 ,  B64C27/605 ,  F04D29/362

公开(公告)号：EP2368066B1

公开(公告)日：2014-08-20

申请号：EP08879030.8

申请日：2008-12-18

Applicant: Bell Helicopter Textron Inc.

Inventor： SMITH, Michael, R. ,  STAMPS, Frank, B.

IPC: F16M1/00 ,  F16F13/10 ,  B64C27/00 ,  B64C29/00 ,  F16F13/06 ,  F16F13/26

CPC classification number: B64C27/001 ,  B64C29/0033 ,  F16F13/06 ,  F16F13/262