KR930000302B1 - 밸브장치 - Google Patents

밸브장치 Download PDF

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Publication number
KR930000302B1
KR930000302B1 KR1019890701445A KR890701445A KR930000302B1 KR 930000302 B1 KR930000302 B1 KR 930000302B1 KR 1019890701445 A KR1019890701445 A KR 1019890701445A KR 890701445 A KR890701445 A KR 890701445A KR 930000302 B1 KR930000302 B1 KR 930000302B1
Authority
KR
South Korea
Prior art keywords
valve
pressure
pilot
main valve
variable throttle
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
Application number
KR1019890701445A
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English (en)
Korean (ko)
Other versions
KR900700765A (ko
Inventor
겐로꾸 스기야마
도이찌 히라다
히데아끼 다나까
가즈마사 유아사
유사꾸 노자와
Original Assignee
히다찌 겐끼 가부시기가이샤
오까다 하지메
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Filing date
Publication date
Application filed by 히다찌 겐끼 가부시기가이샤, 오까다 하지메 filed Critical 히다찌 겐끼 가부시기가이샤
Publication of KR900700765A publication Critical patent/KR900700765A/ko
Application granted granted Critical
Publication of KR930000302B1 publication Critical patent/KR930000302B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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"
    • 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
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
    • F15B13/042—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
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/184—Combined check valves and actuated 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
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
KR1019890701445A 1988-02-24 1989-02-23 밸브장치 Expired - Fee Related KR930000302B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP3969688 1988-02-24
JP88-39696 1988-02-24
JP26524188 1988-10-22
JP88-265241 1988-10-22
PCT/JP1989/000184 WO1989008213A1 (en) 1988-02-24 1989-02-23 Valve device

Publications (2)

Publication Number Publication Date
KR900700765A KR900700765A (ko) 1990-08-16
KR930000302B1 true KR930000302B1 (ko) 1993-01-15

Family

ID=26379072

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890701445A Expired - Fee Related KR930000302B1 (ko) 1988-02-24 1989-02-23 밸브장치

Country Status (6)

Country Link
US (1) US5140815A (enExample)
EP (1) EP0354972B1 (enExample)
KR (1) KR930000302B1 (enExample)
DE (1) DE68915644T2 (enExample)
IN (1) IN171658B (enExample)
WO (1) WO1989008213A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009350A1 (en) * 1991-11-04 1993-05-13 Caterpillar Inc. Pressure compensated flow amplifying poppet valve
US6038957A (en) * 1995-12-15 2000-03-21 Commercial Intertech Limited Control valves

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55631B2 (enExample) * 1973-11-15 1980-01-09
JPS5920881B2 (ja) * 1973-11-16 1984-05-16 豊興工業 （株） 流体制御弁のサ−ジ圧防止回路
JPS5329912Y2 (enExample) * 1973-11-20 1978-07-26
US4201052A (en) * 1979-03-26 1980-05-06 Sperry Rand Corporation Power transmission
DE2911891C2 (de) * 1979-03-26 1983-10-13 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zum Steuern eines Hydromotors
JPS57144344A (en) * 1981-03-02 1982-09-06 Hitachi Constr Mach Co Ltd Flushing valve
JPS57205639A (en) * 1981-06-12 1982-12-16 Hitachi Constr Mach Co Ltd Closing device for oil-pressure circuit for inertia-mass driving
SE439342C (sv) * 1981-09-28 1996-11-18 Bo Reiner Andersson Ventilanordning för styrning av en linjär eller roterande hydraulmotor
DE3140266A1 (de) * 1981-10-10 1983-04-28 Mannesmann Rexroth GmbH, 8770 Lohr "vorrichtung zum steuern eines hydromotors"
DE3201546C2 (de) * 1982-01-20 1986-03-27 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zum Steuern eines Hydromotors
US4611527A (en) * 1982-02-08 1986-09-16 Vickers, Incorporated Power transmission
FR2531175B1 (fr) * 1982-07-27 1986-04-04 Bennes Marrel Valve pilotee pour le freinage ou la limitation de vitesse dans un circuit hydraulique
DE3237103C3 (de) * 1982-10-07 1997-01-23 Wessel Hydraulik Sicherheitsventil als Lasthalteventil in der Hebezeughydraulik
JPS61186804U (enExample) * 1985-05-15 1986-11-21
DE3770178D1 (de) * 1986-01-30 1991-06-27 Komatsu Mfg Co Ltd Hydraulikdruck-steuerung.
US4724673A (en) * 1986-06-30 1988-02-16 Vickers, Incorporated Power transmission
AU603907B2 (en) * 1987-06-30 1990-11-29 Hitachi Construction Machinery Co. Ltd. Hydraulic drive system

Also Published As

Publication number Publication date
DE68915644T2 (de) 1994-09-22
US5140815A (en) 1992-08-25
DE68915644D1 (de) 1994-07-07
IN171658B (enExample) 1992-12-05
EP0354972A4 (en) 1990-09-19
WO1989008213A1 (en) 1989-09-08
EP0354972A1 (en) 1990-02-21
EP0354972B1 (en) 1994-06-01
KR900700765A (ko) 1990-08-16

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