JPH0276275U - - Google Patents

Info

Publication number
JPH0276275U
JPH0276275U JP1988154989U JP15498988U JPH0276275U JP H0276275 U JPH0276275 U JP H0276275U JP 1988154989 U JP1988154989 U JP 1988154989U JP 15498988 U JP15498988 U JP 15498988U JP H0276275 U JPH0276275 U JP H0276275U
Authority
JP
Japan
Prior art keywords
hole
valve
pressure
actuator side
side hole
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
JP1988154989U
Other languages
English (en)
Other versions
JPH0645109Y2 (ja
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 filed Critical
Priority to JP1988154989U priority Critical patent/JPH0645109Y2/ja
Priority to EP19890913244 priority patent/EP0423343A4/en
Priority to US07/548,990 priority patent/US5074330A/en
Priority to PCT/JP1989/001208 priority patent/WO1990006463A1/ja
Publication of JPH0276275U publication Critical patent/JPH0276275U/ja
Priority to KR1019900701660A priority patent/KR900702283A/ko
Application granted granted Critical
Publication of JPH0645109Y2 publication Critical patent/JPH0645109Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • F16K17/196—Equalising valves predominantly for tanks spring-loaded
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/7772—One head and seat carried by head of another
    • Y10T137/7774—Supporting valve spring carried by supporting valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/7772—One head and seat carried by head of another
    • Y10T137/7777—Both valves spring biased

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Safety Valves (AREA)
  • Details Of Valves (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例を示す断面図、第２図
はコントロールバルブの断面図、第３図は従来例
の断面図である。 １はバルブ本体、１ａはシート座、３はアクチ
ユエータ側孔、５はタンク孔、１１はバルブ、１
１ａは筒状突出部、１２は第１孔、１３は第２孔
、１４はスプール、１５はバネ、１６は圧力導入
管、１７はバルブ押室。

Claims (1)

    【実用新案登録請求の範囲】
  1. コントロールバルブのバルブ本体１に形成した
    アクチユエータ側孔３とタンク孔５を連通遮断す
    るバルブ１１に、アクチユエータ側孔３に連通し
    た第１孔１２とタンク孔５に連通した第２孔１３
    を形成すると共に、このバルブ１１内に第１孔１
    ２と第２孔１３を連通遮断するスプール１４を設
    け、このスプール１４をバネ１５で遮断位置とし
    、かつアクチユエータ側孔３内の圧力で連通位置
    となるように構成し、このスプール１４内にアク
    チユエータ側孔３内の圧力を、前記バルブ１１を
    バルブ本体１のシート座１ａに圧着するためバル
    ブ押室１７に導入する圧力導入管１６を設けてア
    クチユエータ側孔３の圧力がタンク孔５の圧力よ
    りも低くなるとバルブ１１がシート座１ａより離
    れるようにした異常圧防止兼真空防止弁において
    、前記バルブ１１の先端にアクチユエータ側孔３
    内に突出する筒状突出部１１ａを設けると共に、
    前記圧力導入管１６の先端部をスプール１４の先
    端面よりも内側としたことを特徴とする異常圧防
    止兼真空防止弁。
JP1988154989U 1988-11-30 1988-11-30 異常圧防止兼真空防止弁 Expired - Lifetime JPH0645109Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1988154989U JPH0645109Y2 (ja) 1988-11-30 1988-11-30 異常圧防止兼真空防止弁
EP19890913244 EP0423343A4 (en) 1988-11-30 1989-11-30 Abnormal pressure prevention-vacuum prevention valve
US07/548,990 US5074330A (en) 1988-11-30 1989-11-30 Anti-abnormal-pressure/vacuum valve
PCT/JP1989/001208 WO1990006463A1 (en) 1988-11-30 1989-11-30 Abnormal pressure prevention-vacuum prevention valve
KR1019900701660A KR900702283A (ko) 1988-11-30 1990-07-30 이상압 방지겸용 진공방지밸브

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988154989U JPH0645109Y2 (ja) 1988-11-30 1988-11-30 異常圧防止兼真空防止弁

Publications (2)

Publication Number Publication Date
JPH0276275U true JPH0276275U (ja) 1990-06-12
JPH0645109Y2 JPH0645109Y2 (ja) 1994-11-16

Family

ID=15596285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988154989U Expired - Lifetime JPH0645109Y2 (ja) 1988-11-30 1988-11-30 異常圧防止兼真空防止弁

Country Status (5)

Country Link
US (1) US5074330A (ja)
EP (1) EP0423343A4 (ja)
JP (1) JPH0645109Y2 (ja)
KR (1) KR900702283A (ja)
WO (1) WO1990006463A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11174959B2 (en) * 2017-09-21 2021-11-16 Kosmek Ltd. Sequence valve-mounted cylinder device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112763A (en) * 1962-04-12 1963-12-03 Hydraulic Unit Specialities Co Combined high pressure relief and void control valve
BE631657A (ja) * 1962-04-30 1900-01-01
US3194265A (en) * 1962-05-02 1965-07-13 Hydraulic Unit Specialities Co Hydraulic control valve with void control means
GB1045030A (en) * 1964-09-30 1966-10-05 Dowty Hydraulic Units Ltd Fluid valves
JPS5169917U (ja) * 1974-11-29 1976-06-02
JPS56156570A (en) * 1980-05-06 1981-12-03 Aisin Seiki Co Ltd Check valve combined with balance piston type relief valve

Also Published As

Publication number Publication date
KR900702283A (ko) 1990-12-06
JPH0645109Y2 (ja) 1994-11-16
EP0423343A1 (en) 1991-04-24
US5074330A (en) 1991-12-24
WO1990006463A1 (en) 1990-06-14
EP0423343A4 (en) 1991-07-24

Similar Documents

Publication Publication Date Title
JPH0276275U (ja)
JPH044575U (ja)
JPS62140286U (ja)
JPS6411484U (ja)
JPS63168382U (ja)
JPH0423883U (ja)
JPS62167977U (ja)
JPH0480976U (ja)
JPH0422660U (ja)
JPS6453577U (ja)
JPS62163381U (ja)
JPH0323264U (ja)
JPS6237316U (ja)
JPH0277301U (ja)
JPS6155559U (ja)
JPS6313936U (ja)
JPS63168381U (ja)
JPS61116203U (ja)
JPH01143472U (ja)
JPH0212055U (ja)
JPH0482461U (ja)
JPS63178677U (ja)
JPS62170462U (ja)
JPH0413879U (ja)
JPH0482463U (ja)