JP5061107B2 - 一体的流量制御を有する電気油圧式絞り弁 - Google Patents
一体的流量制御を有する電気油圧式絞り弁 Download PDFInfo
- Publication number
- JP5061107B2 JP5061107B2 JP2008523948A JP2008523948A JP5061107B2 JP 5061107 B2 JP5061107 B2 JP 5061107B2 JP 2008523948 A JP2008523948 A JP 2008523948A JP 2008523948 A JP2008523948 A JP 2008523948A JP 5061107 B2 JP5061107 B2 JP 5061107B2
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- flow
- main poppet
- chamber
- pilot
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
- G05D7/014—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path using sliding elements
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/005—Control of flow characterised by the use of auxiliary non-electric power combined with the use of electric means
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
-
- 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/40—Flow control
- F15B2211/41—Flow control characterised by the positions of the valve element
- F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
Description
Claims (10)
- 絞り弁(40)であって、
入口(86)と出口(88)とを有する弁本体(68)と、
入口と出口との間の弁本体内に配置され、ノーズ端部(76a)とチャンバ端部(76b)とを有し、かつ流体が入口から出口に流れる流れ通過位置と、入口と出口との間の流体流が遮断される流れ遮断位置との間で移動可能である、主ポペット(76)と、
少なくとも一部がチャンバ端部(76b)によって画成され、入口と連通するチャンバ(126)と、
主ポペットのチャンバ端部をドレン部(24)と選択的に連通させ、これによって、流れ通過位置と流れ遮断位置との間の主ポペットの移動に作用するように移動可能なパイロット要素(74)と、
パイロット要素が、チャンバ内の流体の圧力を調節するために移動するように動作可能なソレノイド機構(72)とを備え、
パイロット要素が、ソレノイド機構の動作及び入口の流体圧力の両方に応じて移動可能であって、パイロット要素の位置に応じて主ポペットのチャンバ端部がドレン部と選択的に連通し、チャンバから流体を選択的にドレン部に流すことが可能であり、
流体によって主ポペットにおけるノーズ端部に作用する力とチャンバ端部に作用する力との間の差に応じて、主ポペットが流れ通過位置と流れ遮断位置の間で移動する、絞り弁。 - ソレノイド機構が、パイロット要素を所定値だけ移動させ、これによって、主ポペットを所定値だけ移動させるように動作可能であり、
所定値が入口の想定流体圧力に基づく、請求項1に記載の絞り弁。 - パイロット要素が、入口から出口への略一定の流体流量を維持するように、入口の流体圧力に応答して移動可能である、請求項2に記載の絞り弁。
- パイロット弁要素を通して延在する中心穴(120)をさらに含む、請求項1に記載の絞り弁。
- ソレノイド機構が、
電磁石コイル(98)と、
電機子(100)と、
電機子に接続されたピン要素(110)と、
電機子とピン要素とを通して延在し、かつパイロット弁要素の中心穴と連通する中心穴(112)と、
を含む請求項4に記載の絞り弁。 - 主ポペットを通して延在し、かつパイロット弁要素の中心穴と連通する中心穴(138)と、
主ポペットの中心穴内に配置された逆止弁要素(136)と、
をさらに含む、請求項5に記載の絞り弁。 - 主ポペット(76)を有し、入口から出口に流れる流体の流量を制御する絞り弁(40)を作動する方法であって、
入口(86)に流入した加圧流体流を、絞り弁の主ポペット(76)を通してチャンバ(126)に導くステップと、
電子的にパイロット要素(74)を移動させて、主ポペットを所定位置に油圧式に移動させ、加圧流体が所望の量で絞り弁を通って流れることを可能にするステップと、
流体の圧力に応答してパイロット要素の位置を自動的に油圧調整するステップと、
パイロット要素の位置に応じてチャンバから流体を選択的にドレン部(24)に流し、主ポペットが、流体が入口から出口に流れる流れ通過位置と入口と出口との間の流体流が遮断される流れ遮断位置との間で移動することで絞り弁を通る所望の流量を維持するステップと、
を含む方法。 - 所定位置が想定流体圧力に基づく、請求項7に記載の方法。
- パイロット弁要素の移動中に、流体がパイロット弁要素を通過することを可能にするステップと、
流体が主ポペットを通過することを可能にするステップと、
主ポペットを通る流体流を単一の流れ方向に制限するステップと、
をさらに含む、請求項7に記載の方法。 - 作業機械(10)であって、
作業器具(14)と、
作業器具を移動させるように動作的に連結され、かつ少なくとも1つのチャンバ(50)を有する油圧シリンダ(16)と、
少なくとも1つのチャンバと連通する加圧流体源(24)と、
加圧流体を少なくとも1つのチャンバ内に計量供給するように構成される請求項1〜6のいずれか1項に記載の絞り弁(40)と
を備えた作業機械。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/192,036 | 2005-07-29 | ||
US11/192,036 US7240604B2 (en) | 2005-07-29 | 2005-07-29 | Electro-hydraulic metering valve with integral flow control |
PCT/US2006/027707 WO2007015814A2 (en) | 2005-07-29 | 2006-07-18 | Electro-hydraulic metering valve with integral flow control |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009503401A JP2009503401A (ja) | 2009-01-29 |
JP5061107B2 true JP5061107B2 (ja) | 2012-10-31 |
Family
ID=37581438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008523948A Expired - Fee Related JP5061107B2 (ja) | 2005-07-29 | 2006-07-18 | 一体的流量制御を有する電気油圧式絞り弁 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7240604B2 (ja) |
JP (1) | JP5061107B2 (ja) |
CN (1) | CN101233465B (ja) |
DE (1) | DE112006002022T5 (ja) |
RU (1) | RU2414630C2 (ja) |
WO (1) | WO2007015814A2 (ja) |
Families Citing this family (12)
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US20080295681A1 (en) * | 2007-05-31 | 2008-12-04 | Caterpillar Inc. | Hydraulic system having an external pressure compensator |
US8479504B2 (en) * | 2007-05-31 | 2013-07-09 | Caterpillar Inc. | Hydraulic system having an external pressure compensator |
US8256739B2 (en) * | 2008-12-22 | 2012-09-04 | Husco International, Inc. | Poppet valve operated by an electrohydraulic poppet pilot valve |
DE102009025827A1 (de) | 2009-05-18 | 2010-11-25 | Bucyrus Dbt Europe Gmbh | Hydraulikschaltvorrichtung für die Mobilhydraulik, mobile Hydraulikmaschine und Ventileinheit |
EP2767720B1 (en) * | 2011-10-11 | 2019-04-03 | Volvo Construction Equipment AB | Electro-hydraulic system for a construction machine |
DE102012208944A1 (de) * | 2012-05-29 | 2013-12-05 | Robert Bosch Gmbh | Hydrostatische Ventilanordnung und hydrostatische Steueranordnung mit der Ventilanordnung |
CH708877B9 (de) * | 2013-11-19 | 2017-02-15 | Liebherr Machines Bulle Sa | Hydraulikventilanordnung mit Steuerungs-/Regelungsfunktion und zugehöriges Rücklaufventil. |
JP6012806B1 (ja) * | 2015-04-15 | 2016-10-25 | Kyb株式会社 | バルブ装置及び流体圧制御装置 |
JP6996566B2 (ja) * | 2017-02-15 | 2022-01-17 | 株式会社ニコン | デュアルバルブ流体アクチュエータアセンブリ |
US10858806B2 (en) | 2019-03-12 | 2020-12-08 | Caterpillar Inc. | Modular manifold having at least two control modules for controlling operation of at least two hydraulic actuators of an earthmoving machine |
US11053958B2 (en) * | 2019-03-19 | 2021-07-06 | Caterpillar Inc. | Regeneration valve for a hydraulic circuit |
US11408144B2 (en) * | 2019-08-29 | 2022-08-09 | Deere & Company | Variable float and variable blade impact |
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US4553732A (en) * | 1984-02-13 | 1985-11-19 | Brundage Robert W | Solenoid controlled flow valve |
JPS6320584U (ja) * | 1986-07-24 | 1988-02-10 | ||
JPH0266305A (ja) | 1988-08-31 | 1990-03-06 | Komatsu Ltd | 作業機シリンダの圧油供給装置 |
DE3938417C1 (ja) | 1989-11-18 | 1991-03-21 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
US5271599A (en) * | 1990-09-28 | 1993-12-21 | Kolchinsky Abel E | Modular solenoid valve |
US5927520A (en) * | 1995-10-06 | 1999-07-27 | Kidde Industries, Inc. | Electro-hydraulic operating system for extensible boom crane |
US5887647A (en) | 1996-05-01 | 1999-03-30 | Weirton Steel Corporation | Decreasing contamination of molten metal prior to solidification casting |
IT1289795B1 (it) * | 1996-12-23 | 1998-10-16 | Elasis Sistema Ricerca Fiat | Perfezionamenti ad una valvola di dosaggio a comando elettromagnetico, con otturatore a sfera, per un iniettore di combustibile. |
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JP2001315177A (ja) * | 2000-05-10 | 2001-11-13 | Meiki Co Ltd | 射出成形機の型締油圧装置 |
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US6769252B2 (en) | 2001-12-10 | 2004-08-03 | Caterpillar Inc | Fluid system having variable pressure relief |
US6715402B2 (en) * | 2002-02-26 | 2004-04-06 | Husco International, Inc. | Hydraulic control circuit for operating a split actuator mechanical mechanism |
US6748738B2 (en) | 2002-05-17 | 2004-06-15 | Caterpillar Inc. | Hydraulic regeneration system |
JP2004068955A (ja) * | 2002-08-07 | 2004-03-04 | Tgk Co Ltd | 差圧制御弁 |
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-
2005
- 2005-07-29 US US11/192,036 patent/US7240604B2/en not_active Expired - Fee Related
-
2006
- 2006-07-18 WO PCT/US2006/027707 patent/WO2007015814A2/en active Application Filing
- 2006-07-18 DE DE112006002022T patent/DE112006002022T5/de not_active Ceased
- 2006-07-18 CN CN2006800274857A patent/CN101233465B/zh not_active Expired - Fee Related
- 2006-07-18 RU RU2008107705/06A patent/RU2414630C2/ru not_active IP Right Cessation
- 2006-07-18 JP JP2008523948A patent/JP5061107B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2007015814A2 (en) | 2007-02-08 |
RU2414630C2 (ru) | 2011-03-20 |
DE112006002022T5 (de) | 2008-07-10 |
WO2007015814A3 (en) | 2007-08-16 |
US20070022871A1 (en) | 2007-02-01 |
CN101233465B (zh) | 2011-05-18 |
JP2009503401A (ja) | 2009-01-29 |
RU2008107705A (ru) | 2009-09-10 |
US7240604B2 (en) | 2007-07-10 |
CN101233465A (zh) | 2008-07-30 |
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