JPH02566B2 - - Google Patents

Info

Publication number
JPH02566B2
JPH02566B2 JP56214125A JP21412581A JPH02566B2 JP H02566 B2 JPH02566 B2 JP H02566B2 JP 56214125 A JP56214125 A JP 56214125A JP 21412581 A JP21412581 A JP 21412581A JP H02566 B2 JPH02566 B2 JP H02566B2
Authority
JP
Japan
Prior art keywords
pilot
passage
valve
pressure
parallel
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 - Lifetime
Application number
JP56214125A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58113605A (ja
Inventor
Masahiko Oozeki
Yukinao Nakagome
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP21412581A priority Critical patent/JPS58113605A/ja
Publication of JPS58113605A publication Critical patent/JPS58113605A/ja
Publication of JPH02566B2 publication Critical patent/JPH02566B2/ja
Granted legal-status Critical Current

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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle 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
    • F15B2211/70—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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
JP21412581A 1981-12-28 1981-12-28 油圧回路とその回路に利用するコントロ−ルバルブ Granted JPS58113605A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21412581A JPS58113605A (ja) 1981-12-28 1981-12-28 油圧回路とその回路に利用するコントロ−ルバルブ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21412581A JPS58113605A (ja) 1981-12-28 1981-12-28 油圧回路とその回路に利用するコントロ−ルバルブ

Publications (2)

Publication Number Publication Date
JPS58113605A JPS58113605A (ja) 1983-07-06
JPH02566B2 true JPH02566B2 (es) 1990-01-08

Family

ID=16650629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21412581A Granted JPS58113605A (ja) 1981-12-28 1981-12-28 油圧回路とその回路に利用するコントロ−ルバルブ

Country Status (1)

Country Link
JP (1) JPS58113605A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017164169A1 (ja) * 2016-03-22 2017-09-28 住友建機株式会社 ショベル及びショベル用コントロールバルブ

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60113805A (ja) * 1983-11-25 1985-06-20 Kayaba Ind Co Ltd 油圧制御装置
JPH0627522B2 (ja) * 1984-10-08 1994-04-13 カヤバ工業株式会社 油圧制御装置
JPH04163459A (ja) * 1990-10-26 1992-06-09 Toppan Printing Co Ltd スクリーン製版印刷方法
KR102561435B1 (ko) * 2016-08-31 2023-07-31 에이치디현대인프라코어 주식회사 건설기계의 제어 시스템 및 건설기계의 제어 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318489B2 (es) * 1974-03-05 1978-06-15
JPS56115434A (en) * 1980-02-13 1981-09-10 Hitachi Constr Mach Co Ltd Hydraulic circuit for civil engineering construction machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS564884Y2 (es) * 1976-07-27 1981-02-03
JPS53132598U (es) * 1977-03-28 1978-10-20

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318489B2 (es) * 1974-03-05 1978-06-15
JPS56115434A (en) * 1980-02-13 1981-09-10 Hitachi Constr Mach Co Ltd Hydraulic circuit for civil engineering construction machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017164169A1 (ja) * 2016-03-22 2017-09-28 住友建機株式会社 ショベル及びショベル用コントロールバルブ
JPWO2017164169A1 (ja) * 2016-03-22 2019-02-07 住友建機株式会社 ショベル及びショベル用コントロールバルブ

Also Published As

Publication number Publication date
JPS58113605A (ja) 1983-07-06

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