KR930010391A - 작업장치 작동부의 압력보상용 유량제어 장치 - Google Patents
작업장치 작동부의 압력보상용 유량제어 장치 Download PDFInfo
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- KR930010391A KR930010391A KR1019910021925A KR910021925A KR930010391A KR 930010391 A KR930010391 A KR 930010391A KR 1019910021925 A KR1019910021925 A KR 1019910021925A KR 910021925 A KR910021925 A KR 910021925A KR 930010391 A KR930010391 A KR 930010391A
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- KR
- South Korea
- Prior art keywords
- pressure
- passage
- drain
- oil
- chamber
- 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.)
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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
- F15B13/04—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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (1)
- 펌프로부터 송출되는 오일을 유입하는 센터바이패스통로(9a, 9b) 파레럴통로(10a, 10b)와 유압 작동부(3, 14)와 연결되는 실린더 포트 오일통로(12a, 12b)와 유압탱크(1)로 연결되는 탱크귀환통로(13a, 13b)와 중립위치에서 레버나 파이럿트압으로 움직이는 스푸울(5)과 스푸울(5)을 좌우위치에서 중립위치로 귀환시키는 리턴작동부(8)와 파레럴 통로(10a)로 역류되는 것을 방지하는 CPR밸브(7)와 밸브내의 압력을 설정압력이하로 유지시키는 릴리이프 밸브(4)로 구성된 콘트롤 밸브에 있어서, 펌프(2)로 부터 오일이 유입되는 파레럴 통로(10a)와 고압오일 통로(11a, 11b) 중간에 오리피스(16)가 형성된 리스트릭(21)을 설치하고, 센터바이패스 통로(9a) 및 파레럴통로(10a)와 탱크 귀환통로(13c) 사이에 드레인통로(25a)를 형성하여 압력보상밸브(15)를 설치하되, 상기 압력보상밸브(15)의 내측에는 상기 드레인 통로(25a)와 탱크귀환 오일통로(13c)를 상호 연통차단하는 스푸울(17)을 스프링(18)으로 탄력설치하여 일측은 배압챔버(26)가 형성되고 타측은 드레인 챔버(27)가 형성되도록 하여 상기 배압챔버(26)로 오리피스(16) 출구측 압력(P2)이 도입되게 고압오일통로(11a, 11b)와 오리피스 출구측 도입통로(19)로 연결하고, 상기 드레인 통로(27)의 일측에 드레인 통로(25c)를 형성하여 상기 드레인 챔버(27)에 도입된 오리피스 입구압력(P1)과 배압챔버에 도입된 오리피스 출구측 압력(P2)의 차압(△P)에 의해 스푸울(17)이 스프링(18)을 압축하여 드레인 챔버(27)의 오일을 드레인통로(25c)로 드레인되도록 함으로서 항상부하압력의 변동에 관계없이 일정유량을 제어하도록 한 것을 특징으로 하는 작업장치 유압작동부의 압력보상용 유량 제어장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021925A KR950002378B1 (ko) | 1991-11-30 | 1991-11-30 | 작업장치 작동부의 압력보상용 유량제어 장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021925A KR950002378B1 (ko) | 1991-11-30 | 1991-11-30 | 작업장치 작동부의 압력보상용 유량제어 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930010391A true KR930010391A (ko) | 1993-06-22 |
| KR950002378B1 KR950002378B1 (ko) | 1995-03-17 |
Family
ID=19323984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910021925A Expired - Fee Related KR950002378B1 (ko) | 1991-11-30 | 1991-11-30 | 작업장치 작동부의 압력보상용 유량제어 장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950002378B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789383A (zh) * | 2018-10-01 | 2021-05-11 | 斗山英维高株式会社 | 工程机械的控制系统 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100722679B1 (ko) * | 2006-06-30 | 2007-05-30 | 주식회사 효성 | 풍력증속기용 온도보상형 윤활시스템 |
| CN110748520B (zh) * | 2019-09-19 | 2021-03-30 | 山东科技大学 | 一种针规节流器 |
-
1991
- 1991-11-30 KR KR1019910021925A patent/KR950002378B1/ko not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789383A (zh) * | 2018-10-01 | 2021-05-11 | 斗山英维高株式会社 | 工程机械的控制系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR950002378B1 (ko) | 1995-03-17 |
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