JPH0154588B2 - - Google Patents

Info

Publication number
JPH0154588B2
JPH0154588B2 JP21221181A JP21221181A JPH0154588B2 JP H0154588 B2 JPH0154588 B2 JP H0154588B2 JP 21221181 A JP21221181 A JP 21221181A JP 21221181 A JP21221181 A JP 21221181A JP H0154588 B2 JPH0154588 B2 JP H0154588B2
Authority
JP
Japan
Prior art keywords
feeder
valve
orifice
check valve
control valve
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
Application number
JP21221181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58113604A (ja
Inventor
Shinya Okabe
Tetsuo Yoshizawa
Shuji Koiwai
Masahiko Oozeki
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.)
Hitachi Construction Machinery Co Ltd
KYB Corp
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd, Kayaba Industry Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP21221181A priority Critical patent/JPS58113604A/ja
Publication of JPS58113604A publication Critical patent/JPS58113604A/ja
Publication of JPH0154588B2 publication Critical patent/JPH0154588B2/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
    • F15B2211/31—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
    • F15B2211/40—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
    • 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
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Fluid-Pressure Circuits (AREA)
JP21221181A 1981-12-25 1981-12-25 多連コントロ−ルバルブ Granted JPS58113604A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21221181A JPS58113604A (ja) 1981-12-25 1981-12-25 多連コントロ−ルバルブ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21221181A JPS58113604A (ja) 1981-12-25 1981-12-25 多連コントロ−ルバルブ

Publications (2)

Publication Number Publication Date
JPS58113604A JPS58113604A (ja) 1983-07-06
JPH0154588B2 true JPH0154588B2 (en]) 1989-11-20

Family

ID=16618764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21221181A Granted JPS58113604A (ja) 1981-12-25 1981-12-25 多連コントロ−ルバルブ

Country Status (1)

Country Link
JP (1) JPS58113604A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014121A1 (en) * 1990-03-05 1991-09-19 Komatsu Zenoah Kabushiki Kaisha Hydraulic control valve

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0612121B2 (ja) * 1984-06-29 1994-02-16 カヤバ工業株式会社 方向切換弁
JPH11257303A (ja) * 1998-03-12 1999-09-21 Kayaba Ind Co Ltd 切換弁
JP6200634B2 (ja) * 2012-06-28 2017-09-20 ナブテスコ株式会社 油圧制御弁
JP6350410B2 (ja) * 2015-06-23 2018-07-04 マツダ株式会社 油圧制御装置のバルブボディ及びその製造方法
JP6341154B2 (ja) * 2015-07-21 2018-06-13 マツダ株式会社 油圧制御装置のバルブボディ
JP6505630B2 (ja) * 2016-03-29 2019-04-24 日立建機株式会社 方向制御弁

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014121A1 (en) * 1990-03-05 1991-09-19 Komatsu Zenoah Kabushiki Kaisha Hydraulic control valve

Also Published As

Publication number Publication date
JPS58113604A (ja) 1983-07-06

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