BRPI0413123A - amortecedor de taxa de mola dupla - Google Patents

amortecedor de taxa de mola dupla

Info

Publication number
BRPI0413123A
BRPI0413123A BRPI0413123-1A BRPI0413123A BRPI0413123A BR PI0413123 A BRPI0413123 A BR PI0413123A BR PI0413123 A BRPI0413123 A BR PI0413123A BR PI0413123 A BRPI0413123 A BR PI0413123A
Authority
BR
Brazil
Prior art keywords
piston
seals
spring rate
chambers
primary passage
Prior art date
Application number
BRPI0413123-1A
Other languages
English (en)
Inventor
Frank B Stamps
Michael R Smith
Christopher M Bothwell
Lawrence M Corso
James L Braswell Jr
David A Popelka
Ernst C Schellhase
Charles L Hollimon
Thomas J Newman
Bryan Baskin
Thomas C Campbell
Daniel B Robertson
Original Assignee
Bell Helicopter Textron Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bell Helicopter Textron Inc filed Critical Bell Helicopter Textron Inc
Publication of BRPI0413123A publication Critical patent/BRPI0413123A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/35—Rotors having elastomeric joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/37—Rotors having articulated joints
    • B64C27/39—Rotors having articulated joints with individually articulated blades, i.e. with flapping or drag hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/51—Damping of blade movements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/24—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the central part of the unit being supported by one element and both extremities of the unit being supported by a single other element, i.e. double acting mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Dampers (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)

Abstract

"AMORTECEDOR DE TAXA DE MOLA DUPLA". Um amortecedor tem um pistão tendo um eixo geométrico, uma superfície externa, e extremidades opostas. Vedações elastoméricas estão em contato vedante com a superfície externa do pistão, as vedações sendo coaxiais com o pistão, e limitando o movimento do pistão para uma trajetória ao longo do eixo geométrico do pistão. As vedações também definindo câmaras de fluido adjacentes às extremidades do pistão. Uma passagem primária comunica as câmaras de fluido, e uma válvula seletivamente comutável controla um fluxo de fluido de uma das câmaras para outra das câmaras através da passagem primária. Quando o fluxo de fluido através da passagem primária é permitido, movimento do pistão é resistido por uma primeira taxa de mola devido a uma força de cisalhamento requerida para impelir deflexão de cisalhamento das vedações. Quando o fluxo de fluido através da passagem primária é restringido, o movimento do pistão é resistido por uma segunda taxa de mola devido a uma força de fluido requerida para impelir deflexão por protuberância das vedações.
BRPI0413123-1A 2003-08-27 2004-08-27 amortecedor de taxa de mola dupla BRPI0413123A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49807303P 2003-08-27 2003-08-27
PCT/US2004/027964 WO2005021990A2 (en) 2003-08-27 2004-08-27 Dual spring rate damper

Publications (1)

Publication Number Publication Date
BRPI0413123A true BRPI0413123A (pt) 2006-10-03

Family

ID=34272633

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0413189-4A BRPI0413189A (pt) 2003-08-27 2004-08-27 cubo de roda de rotor em plano macio
BRPI0413123-1A BRPI0413123A (pt) 2003-08-27 2004-08-27 amortecedor de taxa de mola dupla

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0413189-4A BRPI0413189A (pt) 2003-08-27 2004-08-27 cubo de roda de rotor em plano macio

Country Status (7)

Country Link
US (3) US7828525B2 (pt)
EP (2) EP1658184B1 (pt)
CN (3) CN102182787A (pt)
BR (2) BRPI0413189A (pt)
CA (2) CA2533523C (pt)
DE (2) DE04786599T1 (pt)
WO (2) WO2005049421A2 (pt)

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US8764396B2 (en) * 2008-02-12 2014-07-01 Textron Innovations Inc. Lead-lag damper for rotor hubs
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CN101954970B (zh) * 2010-09-09 2013-04-03 西北工业大学 桨尖喷气直升机通气桨榖
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US8662442B2 (en) * 2011-11-01 2014-03-04 Textron Innovations Inc. Active prop rotor stability system
US9126680B2 (en) * 2011-11-16 2015-09-08 Textron Innovations Inc. Dual mode rotor hub assembly
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CN105972151B (zh) * 2016-07-20 2018-03-13 芜湖万户航空航天科技有限公司 通过橡胶块摆振阻尼连接的主轴与主旋翼
CN106275422B (zh) * 2016-09-08 2018-08-28 南京航空航天大学 一种变转速刚性旋翼飞行器用桨毂
FR3057541B1 (fr) 2016-10-14 2019-03-29 Airbus Helicopters Amortisseur de trainee integre a l'interieur d'une pale d'un rotor
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US20180162526A1 (en) * 2016-12-12 2018-06-14 Bell Helicopter Textron Inc. Proprotor Systems for Tiltrotor Aircraft
US10518868B2 (en) * 2016-12-12 2019-12-31 Textron Innovations Inc. Soft-in-plane proprotor systems
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CN108791708B (zh) * 2017-04-27 2020-02-18 中国船舶重工集团公司第七一九研究所 一种双作用式压簧阻尼器
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CN108108527B (zh) * 2017-11-30 2020-12-01 中国航空工业集团公司沈阳飞机设计研究所 一种飞机起落架垂向刚度比的理论计算方法
US11027834B2 (en) * 2018-02-22 2021-06-08 Textron Innovations Inc. Inboard centrifugal force bearing attachment
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Also Published As

Publication number Publication date
EP1658222B1 (en) 2013-04-03
US20070137956A1 (en) 2007-06-21
DE04819036T1 (de) 2007-04-05
EP1658184A2 (en) 2006-05-24
EP1658222A4 (en) 2012-03-14
WO2005049421A3 (en) 2005-08-04
US20080247876A1 (en) 2008-10-09
CN1842463A (zh) 2006-10-04
CA2533523C (en) 2010-03-30
EP1658184B1 (en) 2016-10-12
EP1658184A4 (en) 2012-02-22
CN1842422A (zh) 2006-10-04
CA2533201C (en) 2010-06-22
CA2533201A1 (en) 2005-03-10
CN102182787A (zh) 2011-09-14
CA2533523A1 (en) 2005-06-02
WO2005021990A2 (en) 2005-03-10
DE04786599T1 (de) 2007-02-22
CN100420608C (zh) 2008-09-24
US8857581B2 (en) 2014-10-14
US7828525B2 (en) 2010-11-09
US20120230823A1 (en) 2012-09-13
EP1658222A2 (en) 2006-05-24
WO2005021990A3 (en) 2005-05-12
WO2005049421A2 (en) 2005-06-02
BRPI0413189A (pt) 2006-10-03
US8181755B2 (en) 2012-05-22

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements