KR20050086019A - 건설중장비용 유량제어장치 - Google Patents
건설중장비용 유량제어장치 Download PDFInfo
- Publication number
- KR20050086019A KR20050086019A KR1020040012334A KR20040012334A KR20050086019A KR 20050086019 A KR20050086019 A KR 20050086019A KR 1020040012334 A KR1020040012334 A KR 1020040012334A KR 20040012334 A KR20040012334 A KR 20040012334A KR 20050086019 A KR20050086019 A KR 20050086019A
- Authority
- KR
- South Korea
- Prior art keywords
- passage
- load
- logic
- control
- valve
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K1/00—Wash-stands; Appurtenances therefor
- A47K1/08—Accessories for toilet tables, e.g. glass plates, supports therefor
- A47K1/09—Holders for drinking glasses, tooth brushes, hair brushes, or the like
-
- 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
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
-
- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- 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
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
-
- 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
- F15B2211/35—Directional control combined with flow control
-
- 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
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
- F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
-
- 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
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
-
- 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
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
Description
Claims (3)
- 유압펌프의 작동유가 입력되는 병렬통로, 병렬통로의 작동유를 제1 유압실린더로 출력하는 제1 부하통로 및 제2 유압실린더로 출력하는 제2 부하통로가 형성되는 하우징과, 상기 하우징 내에 이동 가능하게 설치되어 상기 제1 부하통로와 제2 부하통로의 하나를 상기 병렬통로와 선택적으로 연통시키는 제어스풀을 포함하는 제어밸브;상기 제1 부하통로와 병렬통로 사이에 개폐 가능하게 설치되는 로직체크밸브와, 상기 병렬통로와 로직체크밸브 사이에 설치되어 로직체크밸브의 배압실로 입력되는 유량을 제어하는 로직제어밸브를 포함하는 유량제어밸브; 및상기 제2 부하통로와 병렬통로 사이에 설치되어 상기 제2 유압실린더로부터의 역류를 제한하는 로드체크밸브를 포함하여 이루어지는 것을 특징으로 하는 건설중장비용 유량제어장치.
- 제 1 항에 있어서,상기 로직제어밸브는 상기 병렬통로 측 압력과 제1 부하통로 측 압력 차이에 따라 상기 로직체크밸브 배압실로 입력되는 유량을 제어함으로써 제1 부하통로로 출력되는 유량을 일정하게 유지하는 것을 특징으로 하는 건설중장비용 유량제어장치.
- 제 1 항 또는 제 2 항에 있어서,상기 로직체크밸브는 상기 제1 부하통로 측으로부터 상기 병렬통로 측으로의 역류를 제한하는 역류방지기능을 더 포함하는 것을 특징으로 하는 건설중장비용 유량제어장치.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040012334A KR100652871B1 (ko) | 2004-02-24 | 2004-02-24 | 건설중장비용 유량제어장치 |
JP2004167999A JP4088606B2 (ja) | 2004-02-24 | 2004-06-07 | 建設重装備用流量制御装置 |
US10/869,403 US7017470B2 (en) | 2004-02-24 | 2004-06-16 | Flow control apparatus for construction heavy equipment |
DE602004027115T DE602004027115D1 (de) | 2004-02-24 | 2004-07-13 | Stromsteuervorrichtung einer Arbeitsmaschine |
EP04016422A EP1568892B1 (en) | 2004-02-24 | 2004-07-13 | Flow control apparatus for construction heavy equipment |
CNB2004100545777A CN1328516C (zh) | 2004-02-24 | 2004-07-23 | 用于建筑重型设备的流量控制装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040012334A KR100652871B1 (ko) | 2004-02-24 | 2004-02-24 | 건설중장비용 유량제어장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050086019A true KR20050086019A (ko) | 2005-08-30 |
KR100652871B1 KR100652871B1 (ko) | 2006-12-06 |
Family
ID=34747937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040012334A KR100652871B1 (ko) | 2004-02-24 | 2004-02-24 | 건설중장비용 유량제어장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7017470B2 (ko) |
EP (1) | EP1568892B1 (ko) |
JP (1) | JP4088606B2 (ko) |
KR (1) | KR100652871B1 (ko) |
CN (1) | CN1328516C (ko) |
DE (1) | DE602004027115D1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780897B1 (ko) * | 2006-09-28 | 2007-11-30 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 중장비용 압력 제어장치 |
US8291934B2 (en) * | 2010-01-20 | 2012-10-23 | Eaton Corporation | Proportional valve assembly |
EP2573407B1 (en) * | 2010-05-17 | 2016-07-06 | Volvo Construction Equipment AB | Hydraulic control valve for construction machinery |
CN102705305B (zh) * | 2012-06-07 | 2014-09-03 | 卢宇 | 双泵流量自动控制系统 |
CN104968947A (zh) * | 2013-02-05 | 2015-10-07 | 沃尔沃建造设备有限公司 | 工程机械用压力控制阀 |
JP2014173616A (ja) * | 2013-03-06 | 2014-09-22 | Caterpillar Sarl | 作業機械の圧損低減回路 |
JP7186504B2 (ja) * | 2016-01-28 | 2022-12-09 | 住友建機株式会社 | ショベル |
CN112413148A (zh) * | 2020-12-05 | 2021-02-26 | 左成林 | 一种液控单向阀 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954011A (en) * | 1959-06-25 | 1960-09-27 | Cessna Aircraft Co | Pressure fluid control system and valve |
US3313316A (en) * | 1964-06-01 | 1967-04-11 | Clark Equipment Co | Relief and anti-cavitation valve assembly |
US5006033A (en) | 1989-07-07 | 1991-04-09 | Century Wrecker Corporation | Carrier vehicle with tilt lock-out arrangement |
FR2689575B1 (fr) * | 1992-04-06 | 1994-07-08 | Rexroth Sigma | Distributeur hydraulique a compensation de pression et une selection de pression maximale pour piloter une pompe et commande hydraulique multiple incluant de tels distributeurs. |
KR940703973A (ko) * | 1992-10-29 | 1994-12-12 | 오까다 하지메 | 유압제어밸브장치 및 유압구동장치 |
JP3289852B2 (ja) * | 1993-08-12 | 2002-06-10 | 株式会社小松製作所 | 流量応援用方向制御弁 |
JPH08135602A (ja) * | 1994-11-04 | 1996-05-31 | Hitachi Constr Mach Co Ltd | 方向制御弁 |
US6675904B2 (en) * | 2001-12-20 | 2004-01-13 | Volvo Construction Equipment Holding Sweden Ab | Apparatus for controlling an amount of fluid for heavy construction equipment |
US6745564B2 (en) * | 2001-12-21 | 2004-06-08 | Volvo Construction Equipment Holding Sweden Ab | Hydraulic variable control apparatus for heavy construction equipment |
-
2004
- 2004-02-24 KR KR1020040012334A patent/KR100652871B1/ko active IP Right Grant
- 2004-06-07 JP JP2004167999A patent/JP4088606B2/ja not_active Expired - Fee Related
- 2004-06-16 US US10/869,403 patent/US7017470B2/en not_active Expired - Lifetime
- 2004-07-13 EP EP04016422A patent/EP1568892B1/en not_active Expired - Fee Related
- 2004-07-13 DE DE602004027115T patent/DE602004027115D1/de active Active
- 2004-07-23 CN CNB2004100545777A patent/CN1328516C/zh active Active
Also Published As
Publication number | Publication date |
---|---|
JP4088606B2 (ja) | 2008-05-21 |
US20050183571A1 (en) | 2005-08-25 |
KR100652871B1 (ko) | 2006-12-06 |
EP1568892A3 (en) | 2005-10-19 |
DE602004027115D1 (de) | 2010-06-24 |
US7017470B2 (en) | 2006-03-28 |
EP1568892B1 (en) | 2010-05-12 |
CN1328516C (zh) | 2007-07-25 |
CN1661242A (zh) | 2005-08-31 |
EP1568892A2 (en) | 2005-08-31 |
JP2005240994A (ja) | 2005-09-08 |
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