JPS5783817A - Flow rate control valve - Google Patents

Flow rate control valve

Info

Publication number
JPS5783817A
JPS5783817A JP15914280A JP15914280A JPS5783817A JP S5783817 A JPS5783817 A JP S5783817A JP 15914280 A JP15914280 A JP 15914280A JP 15914280 A JP15914280 A JP 15914280A JP S5783817 A JPS5783817 A JP S5783817A
Authority
JP
Japan
Prior art keywords
valve
path
pressurized oil
orifice
linking
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.)
Pending
Application number
JP15914280A
Other languages
Japanese (ja)
Inventor
Takeshi Oe
Tadaaki Fujii
Hidenori Maeda
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.)
JIDOSHA KIKI KK
Jidosha Kiki Co Ltd
Original Assignee
JIDOSHA KIKI KK
Jidosha Kiki 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 JIDOSHA KIKI KK, Jidosha Kiki Co Ltd filed Critical JIDOSHA KIKI KK
Priority to JP15914280A priority Critical patent/JPS5783817A/en
Publication of JPS5783817A publication Critical patent/JPS5783817A/en
Pending 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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check 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
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow 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
    • F15B2211/70—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)
  • Flow Control (AREA)

Abstract

PURPOSE:To control stably and surely the flow rate to a fluid apparatus even for a high load, by connecting a linking path, where a pressurized oil is fed out, and a supply path, where the pressurized oil is supplied to the fluid apparatus, by a nonreturn valve which allows movement of the pressurized oil. CONSTITUTION:A flow rate control valve 6 feeds the pressurized oil, which is discharged from the first pump 1, to a power steering device 9 through a supply path 13, an orifice 16, and a supply path 14. A valve hole 18 is provided in a casing 15 of the control valve 6, and a spool valve 17 which is supported to slide freely in this valve hole 18 and is moved by the longitudinal differential pressure of the orifice 16 is provided. The pressurized oil from the second pump 10 is fed to a linking path 20, and a nonreturn valve 23 is provided between the linking path 20 and the supply path 13. When the longitudinal differential pressure of the orifice 16 is small and the valve is in the nonoperation position, the linking path 20 and a reflux path 22 are not cut off. When the load becomes higher and the longitudinal differential pressure of the orifice 16 becomes large, the valve 17 is moved to connect the linking path 20 and the reflux path 22, and the excess pressurized oil is returned to a tank 4, and the opening of the nonreturn valve 23 is reduced to make the quantity of the pressurized oil constant.
JP15914280A 1980-11-12 1980-11-12 Flow rate control valve Pending JPS5783817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15914280A JPS5783817A (en) 1980-11-12 1980-11-12 Flow rate control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15914280A JPS5783817A (en) 1980-11-12 1980-11-12 Flow rate control valve

Publications (1)

Publication Number Publication Date
JPS5783817A true JPS5783817A (en) 1982-05-25

Family

ID=15687162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15914280A Pending JPS5783817A (en) 1980-11-12 1980-11-12 Flow rate control valve

Country Status (1)

Country Link
JP (1) JPS5783817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130037144A1 (en) * 2010-02-24 2013-02-14 Torotrak (Development) Limited Fluid supply for continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130037144A1 (en) * 2010-02-24 2013-02-14 Torotrak (Development) Limited Fluid supply for continuously variable transmission

Similar Documents

Publication Publication Date Title
JPS55102744A (en) Hydraulic device for car
DE3470081D1 (en) Hydraulic system with a variable-delivery pump and a priority valve
KR910015456A (en) Hydraulic pressure controller
GB925689A (en) Fluid flow divider
GB1488530A (en) Hydraulic control apparatus
ES8303211A1 (en) Apparatus for supplying hydraulic fluid
ES282774U (en) Valve control device for flow control to control the oil flow supplied to a hydraulic device. (Machine-translation by Google Translate, not legally binding)
DE3470083D1 (en) Hydraulic system comprising a constant-delivery pump and a priority valve
US3123089A (en) Flow divider and control valve
JPS5783817A (en) Flow rate control valve
JPS56138554A (en) Hydraulic pressure controlling apparatus for automatic transmission for vehicle
ES478901A1 (en) Hydraulic system with unloading valve assembly
JPS56104186A (en) Flow controller for power steering working fluid
JPS6429681A (en) Hydraulic gain control circuit
US4340337A (en) Positive displacement pump systems
US2759459A (en) Electromagnetic device for distributing compressed fluids
ES415981A1 (en) Improvements introduced in a separate control valve device for arms of load handling machines. (Machine-translation by Google Translate, not legally binding)
ES485248A1 (en) Hydraulic system with unloading valve assembly
JPS574470A (en) Controller for flow rate of working fluid for power steering
JPS57116910A (en) Pressurized fluid feeding equipment
US4116586A (en) Constant fluid level control for machine reservoir
ATE23680T1 (en) FLOW REGULATOR FOR MOBILE SPRAYING EQUIPMENT.
US2930402A (en) Hydraulic multi-valve power unit
EP0016289B1 (en) Positive displacement pump systems
JPS646502A (en) Hydraulic circuit apparatus controlled by load sensing