JPS6325348Y2 - - Google Patents

Info

Publication number
JPS6325348Y2
JPS6325348Y2 JP1981046290U JP4629081U JPS6325348Y2 JP S6325348 Y2 JPS6325348 Y2 JP S6325348Y2 JP 1981046290 U JP1981046290 U JP 1981046290U JP 4629081 U JP4629081 U JP 4629081U JP S6325348 Y2 JPS6325348 Y2 JP S6325348Y2
Authority
JP
Japan
Prior art keywords
passage
valve
oil rotary
vacuum pump
rotary vacuum
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.)
Expired
Application number
JP1981046290U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57157785U (en]
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 JP1981046290U priority Critical patent/JPS6325348Y2/ja
Publication of JPS57157785U publication Critical patent/JPS57157785U/ja
Application granted granted Critical
Publication of JPS6325348Y2 publication Critical patent/JPS6325348Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Air Blowers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
JP1981046290U 1981-03-30 1981-03-30 Expired JPS6325348Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981046290U JPS6325348Y2 (en]) 1981-03-30 1981-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981046290U JPS6325348Y2 (en]) 1981-03-30 1981-03-30

Publications (2)

Publication Number Publication Date
JPS57157785U JPS57157785U (en]) 1982-10-04
JPS6325348Y2 true JPS6325348Y2 (en]) 1988-07-11

Family

ID=29843142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981046290U Expired JPS6325348Y2 (en]) 1981-03-30 1981-03-30

Country Status (1)

Country Link
JP (1) JPS6325348Y2 (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2559450B2 (ja) * 1988-03-04 1996-12-04 株式会社日立製作所 スクロール圧縮機設備の運転方法
JP3966547B2 (ja) * 2002-10-31 2007-08-29 株式会社前川製作所 多段圧縮と単段圧縮に切り替え可能なスクリュー式多段圧縮機とそれを用いた冷凍・冷却システム
EP3489516B1 (de) * 2017-11-24 2021-09-01 Pfeiffer Vacuum Gmbh Vakuumpumpe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5373609A (en) * 1976-12-14 1978-06-30 Ulvac Corp Oil feeding device for use in oil rotation vacuum pump

Also Published As

Publication number Publication date
JPS57157785U (en]) 1982-10-04

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