JPS55155980A - Low-temperature valve - Google Patents

Low-temperature valve

Info

Publication number
JPS55155980A
JPS55155980A JP6357779A JP6357779A JPS55155980A JP S55155980 A JPS55155980 A JP S55155980A JP 6357779 A JP6357779 A JP 6357779A JP 6357779 A JP6357779 A JP 6357779A JP S55155980 A JPS55155980 A JP S55155980A
Authority
JP
Japan
Prior art keywords
thermal insulation
heat
long
temperature fluid
valve
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
JP6357779A
Other languages
Japanese (ja)
Inventor
Hideo Mita
Hiroshi Nakajima
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Aisin Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Aisin Seiki Co Ltd
Japan National Railways
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 JAPANESE NATIONAL RAILWAYS<JNR>, Aisin Seiki Co Ltd, Japan National Railways filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP6357779A priority Critical patent/JPS55155980A/en
Publication of JPS55155980A publication Critical patent/JPS55155980A/en
Pending legal-status Critical Current

Links

Landscapes

  • Valve Housings (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE: To prevent the thermal rising of a ultralow temperature fluid in a titled valve to be used for liquid helium or other fluids by preventing the heat given to a movable disk and a vacuum thermal insulation cylinder from being transmitted to a valve spindle and a valve body by virtue of long thermal insulation connecting members and thermal insulation holders.
CONSTITUTION: The temperature of a valve body 100 is equalized with that of ultralow temperature fluid. Since a vacuum thermal insulation cylinder 200 is placed in the air, a screw part 30b of the second thermal insulation connecting member 30 and a screw part 41a of the second thermal insulation holder 41 are almost in the normal temperature. The heat in the normal temperature is successively transmitted to the second long thermal insulation connecting member 30, the first long thermal insulation connecting member 26, a bolt 27, a cylindrical member 25, and a valve spindle 1. Similarly, the heat in the normal temperature is successively transmitted to the second long thermal insulation holder 41, the first long thermal insulation holder 43, a cylindrical member 28,a guide box 19, and the ultra- low temperature fluid. This construction serves to limit the transmission of the heat, and prevent the thermal rising of the ultralow temperature fluid.
COPYRIGHT: (C)1980,JPO&Japio
JP6357779A 1979-05-22 1979-05-22 Low-temperature valve Pending JPS55155980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6357779A JPS55155980A (en) 1979-05-22 1979-05-22 Low-temperature valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6357779A JPS55155980A (en) 1979-05-22 1979-05-22 Low-temperature valve

Publications (1)

Publication Number Publication Date
JPS55155980A true JPS55155980A (en) 1980-12-04

Family

ID=13233243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6357779A Pending JPS55155980A (en) 1979-05-22 1979-05-22 Low-temperature valve

Country Status (1)

Country Link
JP (1) JPS55155980A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597009A (en) * 1994-03-17 1997-01-28 Societe Europeenne De Propulsion Vacuum-enclosed integral cryogenic valve
JP2016509184A (en) * 2013-03-07 2016-03-24 ヨウゾウ サトダ Low temperature valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597009A (en) * 1994-03-17 1997-01-28 Societe Europeenne De Propulsion Vacuum-enclosed integral cryogenic valve
JP2016509184A (en) * 2013-03-07 2016-03-24 ヨウゾウ サトダ Low temperature valve

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