KR960001572A - 압력보상밸브를 구비한 방향제어밸브장치 - Google Patents
압력보상밸브를 구비한 방향제어밸브장치 Download PDFInfo
- Publication number
- KR960001572A KR960001572A KR1019950010338A KR19950010338A KR960001572A KR 960001572 A KR960001572 A KR 960001572A KR 1019950010338 A KR1019950010338 A KR 1019950010338A KR 19950010338 A KR19950010338 A KR 19950010338A KR 960001572 A KR960001572 A KR 960001572A
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- pressure
- control valve
- directional control
- juice pool
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits 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
- 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
- F15B13/0403—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves a secondary valve member sliding within the main spool, e.g. for regeneration flow
-
- 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
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation 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
- 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
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
- F15B13/0418—Load sensing elements sliding within a hollow main valve spool
-
- 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
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
-
- 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
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87177—With bypass
- Y10T137/87185—Controlled by supply or exhaust valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
본 발명은 중립시에 유압펌프의 토출압이 높게 되는 일이 없도록 하고 또 액츄에이터를 작동할 때에 외부부하로 강하하지 않도록 하기 위한 것으로, 밸브 블록(30)에 방향제어밸브(22)로 되는 주스푸울(49)과, 압력보상밸브(25)로 되는 체크밸브(23)및 감압밸브부(24)를 설치한 압력보상밸브를 구비한 방향제어 밸브장치에 있어서, 상기한 주스푸울(49)에 압발부(5)와 통로(8)를 형성하고 주스푸울(49)이 중립위치일 때에는 압발부(5)에서 부하압검출포오트(45)를 제1탱크포오트(47)와 연통하여 주스푸울(49)이 연통위치일 때에는 압발부(5)를 차단하고, 또한 부하압검출포오트(45)를 통로(8)에서 제1액유에이터포오트(34)와 연통한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는, 종래예의 단면도,
제2도는, 본 발명의 실시예를 표시하는 전체단면도,
제3도는, 주요부분의 확대단면도.
Claims (2)
- 밸브블록(30)에 방향제어밸브(22)로 되는 주스푸울(49)과, 압력보상밸브(25)로 도는 체크밸브부(23)및 감압밸브부(24)를 설치한 압력보상밸브를 구비한 방향제어밸브장치에 있어서, 주스푸울(49)의 위치가 중립위치로부터 연통위치의 직전 위치까지일 때에, 제1,2부하압검출포오트(45), (46)와 제1,제2탱크포오트(47),(48)를 연통하는 압발부(5)와, 주스푸울(49)의 취치가 중립위치와 연통위치의 중간위치일 때에 제1, 제2액츄에이터포오트(34),(35)와, 제1,2부하압검출포오트(45),(46)를 연통하는 역류방지기능을 보유하는 통로(8)를 각각 형성한 것을 특징으로 하는 특징으로 하는 압력보상밸브를 구비한 방향 제어밸브 장치.
- 제1항에 있어서, 상기한 압발부(5)와 통로(8)를 주스푸울 (49)의 내부에 형성함과 아울러, 통로(8)가 연통된 후에 압발부(5)가 차단되고 그 후에 제1, 제2부하압검출포오트(45),(46)가 제1, 제2액츄에이터포오트(34), (35)와 연통하도록 한 것을 특징으로 하는 압력보상밸브를 구비한 방향제어밸브장치.※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP94-144540 | 1994-06-27 | ||
JP14454094A JP3531758B2 (ja) | 1994-06-27 | 1994-06-27 | 圧力補償弁を備えた方向制御弁装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR960001572A true KR960001572A (ko) | 1996-01-25 |
Family
ID=15364686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950010338A KR960001572A (ko) | 1994-06-27 | 1995-04-28 | 압력보상밸브를 구비한 방향제어밸브장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5778929A (ko) |
EP (1) | EP0770783A4 (ko) |
JP (1) | JP3531758B2 (ko) |
KR (1) | KR960001572A (ko) |
CN (1) | CN1151787A (ko) |
WO (1) | WO1996000351A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100800623B1 (ko) * | 2001-05-18 | 2008-02-05 | 주식회사 엘지이아이 | 공기조화기의 운전제어방법 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4782711B2 (ja) * | 2007-02-21 | 2011-09-28 | 日立建機株式会社 | 方向制御弁装置およびこの方向制御弁装置を複数備えた方向制御弁装置ブロック |
CN102094863B (zh) * | 2010-12-30 | 2013-09-04 | 江苏国瑞液压机械有限公司 | 可变换压力补偿方式的电液比例多路控制阀 |
CN102889257B (zh) * | 2012-09-20 | 2015-05-13 | 三一重工股份有限公司 | 带差动功能的滑阀式液压阀 |
JP6167004B2 (ja) * | 2013-10-04 | 2017-07-19 | 川崎重工業株式会社 | コントロール弁 |
EP2891806A1 (en) * | 2014-01-03 | 2015-07-08 | Danfoss Power Solutions Aps | A hydraulic valve arrangement |
DE102014003086A1 (de) * | 2014-03-01 | 2015-09-03 | Hydac Filtertechnik Gmbh | Ventilvorrichtung |
WO2018071412A1 (en) * | 2016-10-10 | 2018-04-19 | Hydraforce, Inc. | Hydraulic control valve for controlling pressure drop across motors |
CN109441905B (zh) * | 2018-12-26 | 2020-01-07 | 太原理工大学 | 一种变压差负载敏感多路阀 |
US20240102495A1 (en) * | 2020-01-27 | 2024-03-28 | Parker-Hannifin Corporation | Valve with an Adjustable Flow Sharing Pressure Compensator |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3802672C2 (de) * | 1988-01-29 | 1993-12-16 | Danfoss As | Hydraulisches Steuerventil mit Druckfühleinrichtung |
JPH0251701A (ja) * | 1988-08-16 | 1990-02-21 | Mitsubishi Electric Corp | 温度検知機構付制御装置 |
JPH0740083Y2 (ja) * | 1988-10-05 | 1995-09-13 | 有限会社住吉製作所 | 液圧駆動装置における制御装置 |
JPH0768962B2 (ja) * | 1990-06-22 | 1995-07-26 | 株式会社ゼクセル | ロードセンシング機能付き方向切換弁 |
JP3216815B2 (ja) * | 1991-01-23 | 2001-10-09 | 株式会社小松製作所 | 圧力補償弁を有する油圧回路 |
US5533334A (en) * | 1992-04-08 | 1996-07-09 | Kabushiki Kaisha Komatsu Seisakusho | Pressurized fluid supply system |
JPH05332306A (ja) * | 1992-05-29 | 1993-12-14 | Komatsu Ltd | 圧油供給装置 |
FR2694605B1 (fr) * | 1992-08-04 | 1994-11-10 | Bennes Marrel | Ensemble de commande d'une pluralité de récepteurs hydrauliques. |
WO1994010454A1 (en) * | 1992-10-23 | 1994-05-11 | Kabushiki Kaisha Komatsu Seisakusho | Pressure oil supply system having a pressure compensating valve |
-
1994
- 1994-06-27 JP JP14454094A patent/JP3531758B2/ja not_active Expired - Lifetime
-
1995
- 1995-04-28 KR KR1019950010338A patent/KR960001572A/ko active IP Right Grant
- 1995-06-26 US US08/750,994 patent/US5778929A/en not_active Expired - Lifetime
- 1995-06-26 CN CN95193812A patent/CN1151787A/zh active Pending
- 1995-06-26 WO PCT/JP1995/001274 patent/WO1996000351A1/ja not_active Application Discontinuation
- 1995-06-26 EP EP95922763A patent/EP0770783A4/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100800623B1 (ko) * | 2001-05-18 | 2008-02-05 | 주식회사 엘지이아이 | 공기조화기의 운전제어방법 |
Also Published As
Publication number | Publication date |
---|---|
US5778929A (en) | 1998-07-14 |
JP3531758B2 (ja) | 2004-05-31 |
JPH0814206A (ja) | 1996-01-16 |
CN1151787A (zh) | 1997-06-11 |
WO1996000351A1 (fr) | 1996-01-04 |
EP0770783A1 (en) | 1997-05-02 |
EP0770783A4 (en) | 1997-09-24 |
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A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
NORF | Unpaid initial registration fee |