JPH0456162B2 - - Google Patents

Info

Publication number
JPH0456162B2
JPH0456162B2 JP59221481A JP22148184A JPH0456162B2 JP H0456162 B2 JPH0456162 B2 JP H0456162B2 JP 59221481 A JP59221481 A JP 59221481A JP 22148184 A JP22148184 A JP 22148184A JP H0456162 B2 JPH0456162 B2 JP H0456162B2
Authority
JP
Japan
Prior art keywords
cylinder
pump
valve
selection valve
pumps
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
JP59221481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6199706A (ja
Inventor
Tadashi Mitamura
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 JP59221481A priority Critical patent/JPS6199706A/ja
Publication of JPS6199706A publication Critical patent/JPS6199706A/ja
Publication of JPH0456162B2 publication Critical patent/JPH0456162B2/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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/40515—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
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to 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
    • F15B2211/65—Methods of control of the load sensing 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/75—Control of speed of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)
JP59221481A 1984-10-20 1984-10-20 荷役車両用油圧作動装置 Granted JPS6199706A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59221481A JPS6199706A (ja) 1984-10-20 1984-10-20 荷役車両用油圧作動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59221481A JPS6199706A (ja) 1984-10-20 1984-10-20 荷役車両用油圧作動装置

Publications (2)

Publication Number Publication Date
JPS6199706A JPS6199706A (ja) 1986-05-17
JPH0456162B2 true JPH0456162B2 (US20030204162A1-20031030-M00001.png) 1992-09-07

Family

ID=16767384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59221481A Granted JPS6199706A (ja) 1984-10-20 1984-10-20 荷役車両用油圧作動装置

Country Status (1)

Country Link
JP (1) JPS6199706A (US20030204162A1-20031030-M00001.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4795682B2 (ja) * 2004-12-27 2011-10-19 Ｔｃｍ株式会社 フォークリフト用油圧回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170399U (ja) * 1982-05-07 1983-11-14 株式会社豊田自動織機製作所 フオ−クリフトトラツクにおける油圧回路機構

Also Published As

Publication number Publication date
JPS6199706A (ja) 1986-05-17

Similar Documents

Publication Publication Date Title
US5271227A (en) Hydraulic apparatus with pressure compensating valves
CN113494111B (zh) 主控阀、定变量液压系统和装载机
EP1724182B1 (en) Oil pressure supply device for industrial vehicle
JPH0456162B2 (US20030204162A1-20031030-M00001.png)
JP2003118613A (ja) 自動操舵システム
JP4455959B2 (ja) 油圧システム
JP3725297B2 (ja) 油圧制御装置
JP2755423B2 (ja) 油圧ショベルの油圧回路
JP3070387B2 (ja) 荷役車両における流体圧回路
JPH07172328A (ja) 荷役車両における流体圧回路
JPH0735161Y2 (ja) 油圧走行車両等の液圧ポンプ制御装置
JP2927308B2 (ja) 油圧制御回路
JP3084549B2 (ja) チルト式ツーウェイドーザの油圧回路
JP2554650Y2 (ja) 油圧モーターの駆動回路
JPH083194B2 (ja) 建設車両の油圧回路
JP3667036B2 (ja) 油圧制御回路
JP3444506B2 (ja) 圧油供給装置
JPH0516401Y2 (US20030204162A1-20031030-M00001.png)
JPH02484Y2 (US20030204162A1-20031030-M00001.png)
JPS6216467Y2 (US20030204162A1-20031030-M00001.png)
CN116241523A (zh) 一种电控闭中心多路阀、全变量液压系统及装载机
JP2787476B2 (ja) 建設車両の合流回路
JPH0470482B2 (US20030204162A1-20031030-M00001.png)
JP2554649Y2 (ja) 油圧モーターの駆動回路
JPH0649641Y2 (ja) スキツドステアローダの荷役速度切換装置

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees