BRPI0417083A - válvula de alìvio de pressão de dois estágios - Google Patents
válvula de alìvio de pressão de dois estágiosInfo
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-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
- F04B1/2014—Details or component parts
- F04B1/2042—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
- F04B3/003—Machines 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
- F04B3/006—Machines 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
- F15B2211/511—Pressure control characterised by the positions of the valve element the positions being discrete
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/875—Control measures for coping with failures
- F15B2211/8752—Emergency operation mode, e.g. fail-safe operation mode
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2713—Siphons
- Y10T137/2761—With 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.
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) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2500627A (en) | 1947-07-15 | 1950-03-14 | Gerotor May Corp | Fluid distributing valve |
US3067689A (en) | 1958-10-06 | 1962-12-11 | Gen Motors Corp | Variable capacity fluid supply |
US3289605A (en) * | 1964-12-31 | 1966-12-06 | Sperry Rand Corp | Power transmission |
US4123907A (en) * | 1977-04-19 | 1978-11-07 | Caterpillar Tractor Co. | Hydraulic system having selective simultaneous pressure and flow control |
IT1127688B (it) | 1978-12-13 | 1986-05-21 | Hobourn Eaton Ltd | Gruppo di pompa volumetrica |
US4360322A (en) | 1978-12-13 | 1982-11-23 | Hobourn-Eaton Limited | Positive displacement pump systems |
EP0016288A1 (en) | 1978-12-13 | 1980-10-01 | Hobourn-Eaton Limited | Positive displacement pump systems |
JPS5847183A (ja) | 1981-09-11 | 1983-03-18 | Diesel Kiki Co Ltd | 回転斜板式圧縮機 |
JPH059515Y2 (pt) * | 1986-06-11 | 1993-03-09 | ||
CN1048076C (zh) * | 1994-08-03 | 2000-01-05 | 约阿希姆·施皮茨巴思 | 液压泵装置 |
JPH10131751A (ja) * | 1996-10-29 | 1998-05-19 | Aisin Seiki Co Ltd | タンデムポンプ装置 |
US5651665A (en) | 1996-11-12 | 1997-07-29 | General Motors Corporation | Adjustable relief valve arrangement for a motor vehicle power steering hydraulic pump system |
JP2002339823A (ja) * | 2001-05-16 | 2002-11-27 | Nikki Co Ltd | エンジンの燃料供給方法および燃料供給装置 |
US6718763B2 (en) * | 2001-09-03 | 2004-04-13 | Komatsu Ltd. | Hydraulic drive unit |
US6755625B2 (en) * | 2002-10-07 | 2004-06-29 | Robert H. Breeden | Inlet throttle valve |
-
2003
- 2003-12-15 US US10/736,161 patent/US7165950B2/en active Active
-
2004
- 2004-10-27 BR BRPI0417083-0A patent/BRPI0417083A/pt not_active IP Right Cessation
- 2004-10-27 CN CNB2004800365024A patent/CN100441863C/zh not_active Expired - Fee Related
- 2004-10-27 EP EP20040821617 patent/EP1706639B1/en active Active
- 2004-10-27 CA CA 2546390 patent/CA2546390C/en active Active
- 2004-10-27 WO PCT/US2004/035899 patent/WO2005089091A2/en not_active Application Discontinuation
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. |