JPS57163782A - Solenoid valve - Google Patents

Solenoid valve

Info

Publication number
JPS57163782A
JPS57163782A JP4729081A JP4729081A JPS57163782A JP S57163782 A JPS57163782 A JP S57163782A JP 4729081 A JP4729081 A JP 4729081A JP 4729081 A JP4729081 A JP 4729081A JP S57163782 A JPS57163782 A JP S57163782A
Authority
JP
Japan
Prior art keywords
spool
sensor
solenoid valve
iron core
movement
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
JP4729081A
Other languages
Japanese (ja)
Inventor
Hideo Kojo
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 JP4729081A priority Critical patent/JPS57163782A/en
Publication of JPS57163782A publication Critical patent/JPS57163782A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1684—Armature position measurement using coils

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE:To make it possible to detect a false switching condition of a solenoid valve caused by a spool which has not moved to a predetermined position, by operationally associating a sensor for detecting the position of the spool with an indicator arranged visiually from the outside. CONSTITUTION:A coil 6 is energized by closing a switch 10, and a steel piece 5, a rod 11a of a sensor 11 and an iron core 11b are moved together with the movement of a spool 2 so that electromotive force is induced due to the movement of the iron core 11 in an induction coil 11c of the sensor 11. Electrical current generated by the induced electromotive force is indicated by an amperemeter which is used as an indicator arranged visually from the outside.
JP4729081A 1981-04-01 1981-04-01 Solenoid valve Pending JPS57163782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4729081A JPS57163782A (en) 1981-04-01 1981-04-01 Solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4729081A JPS57163782A (en) 1981-04-01 1981-04-01 Solenoid valve

Publications (1)

Publication Number Publication Date
JPS57163782A true JPS57163782A (en) 1982-10-08

Family

ID=12771148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4729081A Pending JPS57163782A (en) 1981-04-01 1981-04-01 Solenoid valve

Country Status (1)

Country Link
JP (1) JPS57163782A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117968U (en) * 1985-01-10 1986-07-25
JPS61139371U (en) * 1985-02-19 1986-08-29
JPS63167821A (en) * 1986-12-27 1988-07-11 東陶機器株式会社 Solenoid drive circuit of water supply control apparatus
EP0278227A2 (en) * 1987-02-11 1988-08-17 Robert Bosch Gmbh Actuating device for a hydraulic, electrically controlled proportional valve
US5101856A (en) * 1988-04-22 1992-04-07 Tokyo Keiki Company Ltd. Electromagnetic directional control valve
JP2012202505A (en) * 2011-03-25 2012-10-22 Aisin Aw Co Ltd Linear solenoid valve and method of determining abnormality thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61117968U (en) * 1985-01-10 1986-07-25
JPS61139371U (en) * 1985-02-19 1986-08-29
JPS63167821A (en) * 1986-12-27 1988-07-11 東陶機器株式会社 Solenoid drive circuit of water supply control apparatus
JPH0464379B2 (en) * 1986-12-27 1992-10-14 Toto Ltd
EP0278227A2 (en) * 1987-02-11 1988-08-17 Robert Bosch Gmbh Actuating device for a hydraulic, electrically controlled proportional valve
US5101856A (en) * 1988-04-22 1992-04-07 Tokyo Keiki Company Ltd. Electromagnetic directional control valve
JP2012202505A (en) * 2011-03-25 2012-10-22 Aisin Aw Co Ltd Linear solenoid valve and method of determining abnormality thereof

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