JPS54106749A - Umbrella-shaped valve - Google Patents

Umbrella-shaped valve

Info

Publication number
JPS54106749A
JPS54106749A JP1349678A JP1349678A JPS54106749A JP S54106749 A JPS54106749 A JP S54106749A JP 1349678 A JP1349678 A JP 1349678A JP 1349678 A JP1349678 A JP 1349678A JP S54106749 A JPS54106749 A JP S54106749A
Authority
JP
Japan
Prior art keywords
umbrella
shaped valve
peripheral part
thickness
peripheral
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
JP1349678A
Other languages
Japanese (ja)
Inventor
Tomoo Ito
Chiaki Araida
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 JP1349678A priority Critical patent/JPS54106749A/en
Publication of JPS54106749A publication Critical patent/JPS54106749A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To greatly decrease the noises due to gas supply, by making non-uniform the thickness of the peripheral part of an umbrella-shaped valve.
CONSTITUTION: A certain angle is set between the axis of the umbrella-shaped valve 1 and the normal to the conical surface 6 of the valve. The thickness of the conical part 6 is made different from that of the peripheral part 7. The thickness of the peripheral part 7 is made non-uniform. Thereby, a thick peripheral section 7b is opened with a very short lag time after a thin peripheral section 7a, and the vibration frequency of the peripheral part due to gas supply is reduced. The resonance of the whole umbrella-shaped valve 1 is prevented. Therefore, the noises are greatly decreased.
COPYRIGHT: (C)1979,JPO&Japio
JP1349678A 1978-02-10 1978-02-10 Umbrella-shaped valve Pending JPS54106749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1349678A JPS54106749A (en) 1978-02-10 1978-02-10 Umbrella-shaped valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1349678A JPS54106749A (en) 1978-02-10 1978-02-10 Umbrella-shaped valve

Publications (1)

Publication Number Publication Date
JPS54106749A true JPS54106749A (en) 1979-08-22

Family

ID=11834716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1349678A Pending JPS54106749A (en) 1978-02-10 1978-02-10 Umbrella-shaped valve

Country Status (1)

Country Link
JP (1) JPS54106749A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632151A (en) * 1983-09-15 1986-12-30 Grundy (Teddington) Limited Non-return valves
JPS6288891U (en) * 1985-11-25 1987-06-06
JPS6311956U (en) * 1986-07-11 1988-01-26
US5598872A (en) * 1994-04-25 1997-02-04 Toyoda Gosei Co., Ltd. Check valve
JP2011247106A (en) * 2010-05-24 2011-12-08 Murata Mfg Co Ltd Pump
JP2021001658A (en) * 2019-06-21 2021-01-07 トヨタ紡織株式会社 Check valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4632151A (en) * 1983-09-15 1986-12-30 Grundy (Teddington) Limited Non-return valves
JPS6288891U (en) * 1985-11-25 1987-06-06
JPS6311956U (en) * 1986-07-11 1988-01-26
US5598872A (en) * 1994-04-25 1997-02-04 Toyoda Gosei Co., Ltd. Check valve
JP2011247106A (en) * 2010-05-24 2011-12-08 Murata Mfg Co Ltd Pump
JP2021001658A (en) * 2019-06-21 2021-01-07 トヨタ紡織株式会社 Check valve

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