JPS61282603A - 液圧機械の液圧回路 - Google Patents

液圧機械の液圧回路

Info

Publication number
JPS61282603A
JPS61282603A JP60120666A JP12066685A JPS61282603A JP S61282603 A JPS61282603 A JP S61282603A JP 60120666 A JP60120666 A JP 60120666A JP 12066685 A JP12066685 A JP 12066685A JP S61282603 A JPS61282603 A JP S61282603A
Authority
JP
Japan
Prior art keywords
switching valve
flow rate
pipe
pump
discharge
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.)
Granted
Application number
JP60120666A
Other languages
English (en)
Japanese (ja)
Other versions
JPH057556B2 (enrdf_load_stackoverflow
Inventor
Kenichi Kimura
健一 木村
Eiji Yonetani
栄二 米谷
Katsuro Abe
安部　克郎
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
Original Assignee
Hitachi Construction Machinery 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 filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP60120666A priority Critical patent/JPS61282603A/ja
Publication of JPS61282603A publication Critical patent/JPS61282603A/ja
Publication of JPH057556B2 publication Critical patent/JPH057556B2/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
    • F15B11/02—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
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • F15B11/0426—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling the number of pumps or parallel valves switched on
    • 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
    • F15B2211/20584—Combinations of pumps with high and low capacity
    • 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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple 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
    • F15B2211/42—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
    • F15B2211/40—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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP60120666A 1985-06-05 1985-06-05 液圧機械の液圧回路 Granted JPS61282603A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60120666A JPS61282603A (ja) 1985-06-05 1985-06-05 液圧機械の液圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60120666A JPS61282603A (ja) 1985-06-05 1985-06-05 液圧機械の液圧回路

Publications (2)

Publication Number Publication Date
JPS61282603A true JPS61282603A (ja) 1986-12-12
JPH057556B2 JPH057556B2 (enrdf_load_stackoverflow) 1993-01-29

Family

ID=14791902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60120666A Granted JPS61282603A (ja) 1985-06-05 1985-06-05 液圧機械の液圧回路

Country Status (1)

Country Link
JP (1) JPS61282603A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH057556B2 (enrdf_load_stackoverflow) 1993-01-29

Similar Documents

Publication Publication Date Title
JP2010509552A (ja) 液圧式の２回路システムおよび該２回路システムのための合・分流切換弁装置
JP4907445B2 (ja) 建設機械におけるアタッチメントの油圧制御装置
JPH0419406A (ja) 油圧作業回路
JP2002181008A (ja) 油圧制御装置
JPS61142235A (ja) 油圧ショベル等の建設機械の油圧回路
JPS61282603A (ja) 液圧機械の液圧回路
JP2799045B2 (ja) クレーン用油圧回路
JPH07238575A (ja) 走行用油圧装置
JPH10299706A (ja) 油圧モータの駆動システム
KR100225979B1 (ko) 2 조의 유압회로계통을 갖춘 유압기기의 내부합류장치
JPH0143162B2 (enrdf_load_stackoverflow)
JPS5830973Y2 (ja) アクチユエ−タの駆動回路
KR100281175B1 (ko) 콘트롤밸브의내부합류장치
JPS6343261Y2 (enrdf_load_stackoverflow)
JPS61116103A (ja) ２速合流回路
JPS60123629A (ja) 油圧ショベルの油圧回路
JPH10131237A (ja) 建設機械の制御回路
JPS5932683B2 (ja) 液圧回路
KR960004184Y1 (ko) 합류회로를 갖는 중장비의 유압회로
JP3662623B2 (ja) ロードセンシング回路
JPH0735884Y2 (ja) 作業機の油圧装置
JP3074937B2 (ja) 車両の走行直進制御回路
JP2554251B2 (ja) 油圧制御装置
JPH0745749B2 (ja) 油圧駆動機械の油圧駆動回路
JPH0411690B2 (enrdf_load_stackoverflow)