JPS56134675A - Check valve and vacuum breakdown valve - Google Patents

Check valve and vacuum breakdown valve

Info

Publication number
JPS56134675A
JPS56134675A JP3756080A JP3756080A JPS56134675A JP S56134675 A JPS56134675 A JP S56134675A JP 3756080 A JP3756080 A JP 3756080A JP 3756080 A JP3756080 A JP 3756080A JP S56134675 A JPS56134675 A JP S56134675A
Authority
JP
Japan
Prior art keywords
valve
check valve
piston
pressure difference
check
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
JP3756080A
Other languages
Japanese (ja)
Inventor
Takenori Fujii
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3756080A priority Critical patent/JPS56134675A/en
Publication of JPS56134675A publication Critical patent/JPS56134675A/en
Pending legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

PURPOSE: To redouble a force which acts to a check valve, to stabilize the operation of the valve, by opening and closing the check valve in connection with the motion of the piston of a cylinder and piston mechanism which is actuated by the pressure difference between the upstream and down-stream sides of the check valve.
CONSTITUTION: The valve element 4 of a check valve 1 is interlocked with a piston 10 by an interlocking mechanism 13. The check valve 1 is opened by the pressure difference between fluid portions in valve casing chambers 5, 6, which directly act to both of the end faces of the valve element 4, and by the motion of the piston 10 of a cylider and piston mechanism 9 which is actuated by said pressure difference. When the fluid flows backward from the open end 3 of the check valve 1, the fluid pressure in the valve casing chamber 6 becomes higher than that in the other valve casing chamber 5. The valve element 4 is displaced toward a valve seat 7 and fitted thereon by the superposition of the pressure difference between the chambers 6, 5 with the action of the interlocking mechanism 13 so that the valve element 4 is shut off.
COPYRIGHT: (C)1981,JPO&Japio
JP3756080A 1980-03-26 1980-03-26 Check valve and vacuum breakdown valve Pending JPS56134675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3756080A JPS56134675A (en) 1980-03-26 1980-03-26 Check valve and vacuum breakdown valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3756080A JPS56134675A (en) 1980-03-26 1980-03-26 Check valve and vacuum breakdown valve

Publications (1)

Publication Number Publication Date
JPS56134675A true JPS56134675A (en) 1981-10-21

Family

ID=12500895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3756080A Pending JPS56134675A (en) 1980-03-26 1980-03-26 Check valve and vacuum breakdown valve

Country Status (1)

Country Link
JP (1) JPS56134675A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067932A1 (en) * 2003-01-31 2004-08-12 Honeywell International Inc. Valve, in particular a valve for a turbocharger system
JP2008075860A (en) * 2006-09-25 2008-04-03 Dmw Corp Swing check valve
JP2009121611A (en) * 2007-11-15 2009-06-04 Tlv Co Ltd Vacuum break valve
JP2009121610A (en) * 2007-11-15 2009-06-04 Tlv Co Ltd Non-return valve
JP2012241866A (en) * 2011-05-23 2012-12-10 Panasonic Corp Check valve
JP2015232369A (en) * 2014-06-10 2015-12-24 未来工業株式会社 Vent valve and piping structure
WO2018169075A1 (en) * 2017-03-17 2018-09-20 株式会社キッツ Aeration valve and waste water pipe system
JP2018155396A (en) * 2017-03-17 2018-10-04 株式会社キッツ Vent valve and drain pipe system
JP2019027584A (en) * 2017-07-31 2019-02-21 株式会社キッツ Rotary valve mechanism, vent valve using the same, and drain pipe system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067932A1 (en) * 2003-01-31 2004-08-12 Honeywell International Inc. Valve, in particular a valve for a turbocharger system
JP2008075860A (en) * 2006-09-25 2008-04-03 Dmw Corp Swing check valve
JP2009121611A (en) * 2007-11-15 2009-06-04 Tlv Co Ltd Vacuum break valve
JP2009121610A (en) * 2007-11-15 2009-06-04 Tlv Co Ltd Non-return valve
JP2012241866A (en) * 2011-05-23 2012-12-10 Panasonic Corp Check valve
JP2015232369A (en) * 2014-06-10 2015-12-24 未来工業株式会社 Vent valve and piping structure
WO2018169075A1 (en) * 2017-03-17 2018-09-20 株式会社キッツ Aeration valve and waste water pipe system
JP2018155396A (en) * 2017-03-17 2018-10-04 株式会社キッツ Vent valve and drain pipe system
CN110392800A (en) * 2017-03-17 2019-10-29 株式会社开滋 Breather valve and drain pipe system
JP2019027584A (en) * 2017-07-31 2019-02-21 株式会社キッツ Rotary valve mechanism, vent valve using the same, and drain pipe system

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