KR910014637A - 릴리프 기능을 가진 카운터밸런스 밸브 - Google Patents

릴리프 기능을 가진 카운터밸런스 밸브 Download PDF

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Publication number
KR910014637A
KR910014637A KR1019910001548A KR910001548A KR910014637A KR 910014637 A KR910014637 A KR 910014637A KR 1019910001548 A KR1019910001548 A KR 1019910001548A KR 910001548 A KR910001548 A KR 910001548A KR 910014637 A KR910014637 A KR 910014637A
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KR
South Korea
Prior art keywords
supply
discharge
discharge passages
pressure
passages
Prior art date
Application number
KR1019910001548A
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English (en)
Inventor
가즈노리 오가와
Original Assignee
이마니 쇼오따
데이진 세이끼 가부시끼가이샤
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Application filed by 이마니 쇼오따, 데이진 세이끼 가부시끼가이샤 filed Critical 이마니 쇼오따
Publication of KR910014637A publication Critical patent/KR910014637A/ko

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. 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
    • 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
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
    • 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
    • F15B2211/30505—Non-return valves, i.e. check 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/41536—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 being connected to multiple ports of an output member
    • 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
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure 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
    • F15B2211/70—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
    • F15B2211/7058—Rotary 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
    • 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
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/8609—Control during or prevention of abnormal conditions the abnormal condition being cavitation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)

Abstract

내용 없음

Description

릴리프 기능을 가진 카운터밸런스 밸브
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도 내지 제3도는 본발명의 실시예의 단면도.

Claims (2)

  1. 방향제어밸브를 유체 액츄에이터와 연통시키는 한쌍의 공급 및 배출통로내에 배치되어 있고, 상기 공급 및 배출통로의 공급측에서의 압력에 반응하여 상기 공급 및 배출통로의 배출측에서 유동면적을 조정하며, 릴리프기능을 가진 카운터밸런스 밸브에 있어서, 상기 공급 및 배출통로에 각각 대응하고 상기 카운터밸런스 밸브의 스푸울을 구성하는 2개의 분할스푸울, 상기 압력이 상기 유체 액츄에이터의 펌핑기능으로 인해 상기 유동 면적이 상기 공급 및 배출통로의 배출측에서의 증가된 압력에 반응하여 증가하는 방향으로 상기 공급 및 배출통로의 상기 공급측에서의 상기 분할스푸울 중의 하나를 이동시키기 위한 수단, 및 상기 공급 및 배출통로의 상기 배출측에서 증가된 압력을 갖춘 유체가 상기 공급 및 배출통로의 상기 공급측에서 제거되도록 상기 이동수단이 작동되면 상기 공급 및 배출통로의 상기 배출측을 상기 공급 및 배출통로의 공급측에 연동시키기 위한 연동통로로 구성되어 있는 것을 특징으로 하는 릴리프기능을 가진 카운터밸런스밸브.
  2. 릴리프기능을 가진 카운터밸런스 밸브에 있어서, 한쌍의 공급 및 배출통로내에 배치되어 있고 방향 제어밸브를 유체 액츄에이터에 연통시키며, 상기 공급 및 배출통로의 공급측에서의 압력에 반응하여 상기 공급 및 배출통로의 배출측에서의 유동면적을 조정하는 스푸울, 상기 압력이 상기 유체 액츄 에이터의 펌핑기능으로 인해 소정의 압력보다 증가되면, 상기 유동면적이 상기 공급 및 배출통로의 상기 배출측에서의 증가된 압력에 반응하여 증가하는 방향으로 상기 공급 및 배출통로의 상기 공급측에서의 상기 스푸울중의 하나를 이동시키기 위하여 상기 스푸울내에 배치되는 로드부재, 및 상기 공급 및 배출통로의 상기 배출측에서의 증가된 압력을 가진 상기 유체가 상기 공급 및 배출통로의 상기 공급측에서의 제거되도록 로드부재가 작동되면 상기 공급 및 배출통로의 상기 배출측을 상기 공급 및 배출통로의 공급측에 연통시키기 위한 연통통로로 구성되어 있는 것을 특징으로 하는 릴리프 기능을 가진 카운터밸런스밸브.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910001548A 1990-01-31 1991-01-30 릴리프 기능을 가진 카운터밸런스 밸브 KR910014637A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-21608 1990-01-31
JP2021608A JPH03229075A (ja) 1990-01-31 1990-01-31 リリーフ機能付きカウンターバランス弁

Publications (1)

Publication Number Publication Date
KR910014637A true KR910014637A (ko) 1991-08-31

Family

ID=12059752

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910001548A KR910014637A (ko) 1990-01-31 1991-01-30 릴리프 기능을 가진 카운터밸런스 밸브

Country Status (5)

Country Link
US (1) US5076143A (ko)
EP (1) EP0440097B1 (ko)
JP (1) JPH03229075A (ko)
KR (1) KR910014637A (ko)
DE (1) DE69102079T2 (ko)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3065108B2 (ja) * 1990-12-18 2000-07-12 帝人製機株式会社 カウンターバランス弁
US5579676A (en) * 1995-07-13 1996-12-03 Husco International, Inc. Hydraulic valve to maintain control in fluid-loss condition
US5715865A (en) * 1996-11-13 1998-02-10 Husco International, Inc. Pressure compensating hydraulic control valve system
US5878647A (en) * 1997-08-11 1999-03-09 Husco International Inc. Pilot solenoid control valve and hydraulic control system using same
US5890362A (en) * 1997-10-23 1999-04-06 Husco International, Inc. Hydraulic control valve system with non-shuttle pressure compensator
US5950429A (en) * 1997-12-17 1999-09-14 Husco International, Inc. Hydraulic control valve system with load sensing priority
US6539712B2 (en) * 1999-12-27 2003-04-01 Kayaba Kogyo Kabushiki Kaisha Hydraulic drive unit
US8683795B1 (en) * 2010-05-04 2014-04-01 The Boeing Company Control valve for a hydraulic refueling boom system
US8493713B2 (en) 2010-12-14 2013-07-23 Avx Corporation Conductive coating for use in electrolytic capacitors
US8576543B2 (en) 2010-12-14 2013-11-05 Avx Corporation Solid electrolytic capacitor containing a poly(3,4-ethylenedioxythiophene) quaternary onium salt
US8451588B2 (en) 2011-03-11 2013-05-28 Avx Corporation Solid electrolytic capacitor containing a conductive coating formed from a colloidal dispersion
US8971019B2 (en) 2012-03-16 2015-03-03 Avx Corporation Wet capacitor cathode containing an alkyl-substituted poly(3,4-ethylenedioxythiophene)

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Also Published As

Publication number Publication date
EP0440097B1 (en) 1994-05-25
DE69102079T2 (de) 1995-01-12
US5076143A (en) 1991-12-31
EP0440097A1 (en) 1991-08-07
DE69102079D1 (de) 1994-06-30
JPH03229075A (ja) 1991-10-11

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