BRPI0417083A - válvula de alìvio de pressão de dois estágios - Google Patents

válvula de alìvio de pressão de dois estágios

Info

Publication number
BRPI0417083A
BRPI0417083A BRPI0417083-0A BRPI0417083A BRPI0417083A BR PI0417083 A BRPI0417083 A BR PI0417083A BR PI0417083 A BRPI0417083 A BR PI0417083A BR PI0417083 A BRPI0417083 A BR PI0417083A
Authority
BR
Brazil
Prior art keywords
pressure
relief valve
stage
pressure relief
stage pressure
Prior art date
Application number
BRPI0417083-0A
Other languages
English (en)
Inventor
Carlos A Fenny
David P Schultz
Darrel B Bryan
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 BRPI0417083A publication Critical patent/BRPI0417083A/pt

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/024Pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014Details or component parts
    • F04B1/2042Valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B3/00Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
    • F04B3/003Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage with two or more pistons reciprocating one within another, e.g. one piston forning cylinder of the other
    • F04B3/006Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage with two or more pistons reciprocating one within another, e.g. one piston forning cylinder of the other with rotating cylinder block
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/007Overload
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20546Type of pump variable capacity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/505Pressure control characterised by the type of pressure control means
    • F15B2211/50509Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/51Pressure control characterised by the positions of the valve element
    • F15B2211/511Pressure control characterised by the positions of the valve element the positions being discrete
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/515Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5157Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/50Pressure control
    • F15B2211/52Pressure control characterised by the type of actuation
    • F15B2211/528Pressure control characterised by the type of actuation actuated by fluid pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/875Control measures for coping with failures
    • F15B2211/8752Emergency operation mode, e.g. fail-safe operation mode
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2713Siphons
    • Y10T137/2761With discharge-controlling receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

"VáLVULA DE ALìVIO DE PRESSãO DE DOIS ESTáGIOS". Uma válvula de alívio de pressão de dois estágios para uso com sistemas hidráulicos é revelada. A válvula de alívio de pressão de dois estágios tem um primeiro estágio que alivia o aumento na pressão do sistema hidráulico sobre a pressão de operação normal e até um nível de pressão limite selecionado, e um segundo estágio que traz a pressão do sistema hidráulico abaixo para uma pressão de operação reduzida selecionada que está abaixo da pressão de operação normal em resposta ao aumento na pressão de operação sobre o nível de pressão limite.
BRPI0417083-0A 2003-12-15 2004-10-27 válvula de alìvio de pressão de dois estágios BRPI0417083A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/736,161 US7165950B2 (en) 2003-12-15 2003-12-15 Two-stage pressure relief valve
PCT/US2004/035899 WO2005089091A2 (en) 2003-12-15 2004-10-27 Two-stage pressure relief valve

Publications (1)

Publication Number Publication Date
BRPI0417083A true BRPI0417083A (pt) 2007-03-13

Family

ID=34653815

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0417083-0A BRPI0417083A (pt) 2003-12-15 2004-10-27 válvula de alìvio de pressão de dois estágios

Country Status (6)

Country Link
US (1) US7165950B2 (pt)
EP (1) EP1706639B1 (pt)
CN (1) CN100441863C (pt)
BR (1) BRPI0417083A (pt)
CA (1) CA2546390C (pt)
WO (1) WO2005089091A2 (pt)

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DE102005058547B4 (de) * 2005-12-08 2012-04-12 Airbus Operations Gmbh Einrichtung zur Verminderung von Hydrofluidschwingungen in einem Hydrauliksystem
DE102007028919B4 (de) * 2007-06-22 2012-12-06 Airbus Operations Gmbh Vorrichtung und Verfahren zur Temperaturregelung eines Hydraulikfluids
KR101189632B1 (ko) * 2008-03-31 2012-10-11 가부시키가이샤 고마쓰 세이사쿠쇼 건설 기계의 선회 구동 제어 시스템
US8887498B2 (en) * 2009-12-18 2014-11-18 Gm Global Technology Operations, Llc Transmission hydraulic control system having an accumulator bypass valve assembly
JP5514621B2 (ja) * 2010-04-28 2014-06-04 ナブテスコ株式会社 航空機アクチュエータの油圧装置
US8152407B1 (en) 2010-11-08 2012-04-10 Saudi Arabian Oil Company Auxiliary pressure relief reservoir for crash barrier
US8152406B1 (en) 2010-11-08 2012-04-10 Saudi Arabian Oil Company Crash barrier with over-pressure relief system
JP5658117B2 (ja) * 2010-11-29 2015-01-21 ナブテスコ株式会社 航空機アクチュエータの油圧システム
US8939227B2 (en) 2010-12-23 2015-01-27 Caterpillar Inc. Pressure protection valve for hydraulic tool
US8850806B2 (en) 2011-06-28 2014-10-07 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9068575B2 (en) 2011-06-28 2015-06-30 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US8776511B2 (en) 2011-06-28 2014-07-15 Caterpillar Inc. Energy recovery system having accumulator and variable relief
US8919113B2 (en) 2011-06-28 2014-12-30 Caterpillar Inc. Hydraulic control system having energy recovery kit
US9139982B2 (en) 2011-06-28 2015-09-22 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9388829B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9388828B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9145660B2 (en) * 2012-08-31 2015-09-29 Caterpillar Inc. Hydraulic control system having over-pressure protection
US9328744B2 (en) 2012-08-31 2016-05-03 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9187878B2 (en) 2012-08-31 2015-11-17 Caterpillar Inc. Hydraulic control system having swing oscillation dampening
US9086081B2 (en) 2012-08-31 2015-07-21 Caterpillar Inc. Hydraulic control system having swing motor recovery
US9091286B2 (en) 2012-08-31 2015-07-28 Caterpillar Inc. Hydraulic control system having electronic flow limiting
EP3027896A1 (en) * 2013-08-01 2016-06-08 Hydratech Industries Wind Power A/S Hydraulic pitch system utilizing pilot pressured reservoir for wind turbines
WO2016055082A1 (en) * 2014-10-09 2016-04-14 Volvo Truck Corporation An oil pump assembly for a vehicle lubrication system
CN104495265A (zh) * 2014-12-19 2015-04-08 太原重工股份有限公司 一种运输车及其夹钳的控制系统
CA3016516A1 (en) 2016-03-30 2017-10-05 Klx Inc. Pressure relief valve apparatus and an electronic system for controlling the same
CN106704286B (zh) * 2017-02-28 2018-05-18 中冶华天南京工程技术有限公司 两级压力切换的溢流阀
EP3425213B1 (en) 2017-07-03 2020-11-25 LEONARDO S.p.A. Safety valve and method for controlling a hydraulic circuit
EP3685049B1 (en) * 2017-09-21 2023-11-15 Volvo Construction Equipment AB Time-based power boost control system
CN109139613A (zh) * 2018-09-30 2019-01-04 重庆大学 一种智能限速切断阀
US11118464B2 (en) 2018-10-11 2021-09-14 General Electric Company Aircraft gas turbine engine blade pitch change mechanism
CN110285104B (zh) * 2019-06-04 2020-12-01 常德中联重科液压有限公司 定差溢流阀及工程机械
US11867043B1 (en) 2019-12-13 2024-01-09 Klx Energy Services Llc Remotely-controlled pressure bleed-off system
JP2023064458A (ja) * 2021-10-26 2023-05-11 キャタピラー エス エー アール エル 建設機械の油圧回路

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Also Published As

Publication number Publication date
WO2005089091A8 (en) 2005-12-08
US20050129531A1 (en) 2005-06-16
EP1706639A4 (en) 2012-02-01
WO2005089091A2 (en) 2005-09-29
EP1706639B1 (en) 2014-05-14
CA2546390C (en) 2009-03-10
EP1706639A2 (en) 2006-10-04
CN1894503A (zh) 2007-01-10
CN100441863C (zh) 2008-12-10
CA2546390A1 (en) 2005-09-29
US7165950B2 (en) 2007-01-23
WO2005089091A3 (en) 2006-08-03

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 11A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2329 DE 25-08-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.