JPS55142107A - Servo valve - Google Patents

Servo valve

Info

Publication number
JPS55142107A
JPS55142107A JP5033479A JP5033479A JPS55142107A JP S55142107 A JPS55142107 A JP S55142107A JP 5033479 A JP5033479 A JP 5033479A JP 5033479 A JP5033479 A JP 5033479A JP S55142107 A JPS55142107 A JP S55142107A
Authority
JP
Japan
Prior art keywords
valve
pressure
controlled
oil
poppet
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
JP5033479A
Other languages
Japanese (ja)
Other versions
JPS6115283B2 (en
Inventor
Takeshi Ichiyanagi
Ichiro Nakamura
Yoshimichi Akasaka
Haruo Watanabe
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP5033479A priority Critical patent/JPS55142107A/en
Publication of JPS55142107A publication Critical patent/JPS55142107A/en
Publication of JPS6115283B2 publication Critical patent/JPS6115283B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Servomotors (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

PURPOSE: To constitute a servo valve to control flow rate or pressure with precisely and at high speed with less leak even under extended high pressure to be more than 500 atmospheric pressure, sufficient durability and reliability.
CONSTITUTION: Supply of low pressure oil is controlled by a pilot valve 12, while supply of high pressure oil is controlled by a main valve 32. Two pieces of high hydraulic control ports C1, C2 are installed on a main valve 32. Each port is constituted by poppet valves 52, 54 and the valve body of each poppet valve is elastically connected through an elastic part mechanism 56. Opening degree of each poppet valve 52, 54 is adjusted by oil pressure supplied through the pilot valve 12, even in case of fluid under super-high pressure, it gives less leak and the pressure or flow rate is correctly controlled.
COPYRIGHT: (C)1980,JPO&Japio
JP5033479A 1979-04-25 1979-04-25 Servo valve Granted JPS55142107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5033479A JPS55142107A (en) 1979-04-25 1979-04-25 Servo valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5033479A JPS55142107A (en) 1979-04-25 1979-04-25 Servo valve

Publications (2)

Publication Number Publication Date
JPS55142107A true JPS55142107A (en) 1980-11-06
JPS6115283B2 JPS6115283B2 (en) 1986-04-23

Family

ID=12856009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5033479A Granted JPS55142107A (en) 1979-04-25 1979-04-25 Servo valve

Country Status (1)

Country Link
JP (1) JPS55142107A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6606577B1 (en) 1997-10-16 2003-08-12 Jun Fukuhara Method and system for measuring flicker sensitivity distribution, and computer-readable recording medium storing flicker sensitivity distribution measuring program
CN102146941A (en) * 2011-04-27 2011-08-10 山东泰丰液压股份有限公司 Load feedback high-flow hydraulic control system of plug-in mounting multiple directional control valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6606577B1 (en) 1997-10-16 2003-08-12 Jun Fukuhara Method and system for measuring flicker sensitivity distribution, and computer-readable recording medium storing flicker sensitivity distribution measuring program
CN102146941A (en) * 2011-04-27 2011-08-10 山东泰丰液压股份有限公司 Load feedback high-flow hydraulic control system of plug-in mounting multiple directional control valve

Also Published As

Publication number Publication date
JPS6115283B2 (en) 1986-04-23

Similar Documents

Publication Publication Date Title
ES454891A1 (en) Shut-off valve
IT1232600B (en) Pilot-controlled safety valve
GB1203196A (en) Fluid control valves
GB1463928A (en) Lock valve assembly
GB1490553A (en) Fluid flow apparatus
SE8105574L (en) PILOT CONTROLLED RELIEF VALVE
JPS55142107A (en) Servo valve
ES8500398A1 (en) Hydraulic precision control valve.
JPS5578869A (en) Fluid control valve
JPS56104186A (en) Flow controller for power steering working fluid
FR2432661A1 (en) Lifting platform hydraulic selector valve - has non-return valve in bore in rotary plug
EP0077203A3 (en) Fluid flow control valve
GB1182037A (en) Improvements in or relating to fluid control valves
ES456345A1 (en) Well point system
GB911729A (en) Improvements in or relating to hydraulic control valves
JPS5672250A (en) Controller for exhaust gas recirculation in engine
ES8204111A2 (en) Fluid valve means
JPS53129788A (en) Control method for controlling flow rate or pressure by operating two or more valves
JPS6455485A (en) Fluid control valve gear
FR2322315A1 (en) Solenoid direction control valve - has pilot valves directing fluid to alternate chambers to shift control slide
JPS5533980A (en) Level control valve
JPS6412106A (en) Priority operation control device for high-load actuator
JPS5620807A (en) Amount of flow and pressure control system
JPS56141403A (en) Fluid controller
JPS55115664A (en) Double check valve