JPS5644479A - Quick closing check valve - Google Patents

Quick closing check valve

Info

Publication number
JPS5644479A
JPS5644479A JP11901879A JP11901879A JPS5644479A JP S5644479 A JPS5644479 A JP S5644479A JP 11901879 A JP11901879 A JP 11901879A JP 11901879 A JP11901879 A JP 11901879A JP S5644479 A JPS5644479 A JP S5644479A
Authority
JP
Japan
Prior art keywords
valve
valve body
conduit
fluid pressure
quick closing
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
JP11901879A
Other languages
Japanese (ja)
Other versions
JPS5917273B2 (en
Inventor
Yutaka Yamada
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP54119018A priority Critical patent/JPS5917273B2/en
Publication of JPS5644479A publication Critical patent/JPS5644479A/en
Publication of JPS5917273B2 publication Critical patent/JPS5917273B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

PURPOSE: To prevent generation of water hammering at the time of closing a quick closing type check valve equipped with a fluid pressure energizer which energizes a valve body to the 'close' direction by means of fluid pressure, by setting the energizing force to the valve body at zero during pumping-up operation and giving large energizing force at the time of shut-off.
CONSTITUTION: When power supply is cut off for pumping up operation, an electromagnet is deenergized to change the position of a port for a directional reversing valve 7, and a conduit 11 is connected with a conduit 17, while a conduit 18 is closed. Oil in an accumulator 12 is then introduced in a fluid pressure cylinder 9 which actuates a valve body 1 of the quick closing type reversing valve, a piston 8 is forced out, the valve body 1 is strongly energized through a crank 6 toward the 'close' direction, fluid flow becomes zero and at the same time the valve body 1 is quickly closed. Since the valve is shut off before counterflow is generated, no large water hammer is exerted on the valve.
COPYRIGHT: (C)1981,JPO&Japio
JP54119018A 1979-09-17 1979-09-17 quick-closing check valve Expired JPS5917273B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54119018A JPS5917273B2 (en) 1979-09-17 1979-09-17 quick-closing check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54119018A JPS5917273B2 (en) 1979-09-17 1979-09-17 quick-closing check valve

Publications (2)

Publication Number Publication Date
JPS5644479A true JPS5644479A (en) 1981-04-23
JPS5917273B2 JPS5917273B2 (en) 1984-04-20

Family

ID=14750941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54119018A Expired JPS5917273B2 (en) 1979-09-17 1979-09-17 quick-closing check valve

Country Status (1)

Country Link
JP (1) JPS5917273B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100419187B1 (en) * 2000-12-30 2004-02-18 이영범 Automatic control check valve
JP2013170460A (en) * 2012-02-17 2013-09-02 Hitachi Ltd Preceding-time standby pump and operation method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213741A (en) * 1985-07-09 1987-01-22 Nippon Soken Inc Injection rate control mechanism of fuel injection pump
CN103994065A (en) * 2014-06-12 2014-08-20 佛山市优霸机械设备有限公司 One-way valve plunger metering pump enhanced through external force

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100419187B1 (en) * 2000-12-30 2004-02-18 이영범 Automatic control check valve
JP2013170460A (en) * 2012-02-17 2013-09-02 Hitachi Ltd Preceding-time standby pump and operation method thereof

Also Published As

Publication number Publication date
JPS5917273B2 (en) 1984-04-20

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