JPH0526038B2 - - Google Patents

Info

Publication number
JPH0526038B2
JPH0526038B2 JP59078408A JP7840884A JPH0526038B2 JP H0526038 B2 JPH0526038 B2 JP H0526038B2 JP 59078408 A JP59078408 A JP 59078408A JP 7840884 A JP7840884 A JP 7840884A JP H0526038 B2 JPH0526038 B2 JP H0526038B2
Authority
JP
Japan
Prior art keywords
chamber
bearing
shaft
discharge port
screw
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 - Lifetime
Application number
JP59078408A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60222583A (ja
Inventor
Yasuo Takahashi
Kotaro Naya
Tetsuya Sato
Koji Takagi
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 JP7840884A priority Critical patent/JPS60222583A/ja
Publication of JPS60222583A publication Critical patent/JPS60222583A/ja
Publication of JPH0526038B2 publication Critical patent/JPH0526038B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
JP7840884A 1984-04-20 1984-04-20 スクリユ−真空ポンプ Granted JPS60222583A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7840884A JPS60222583A (ja) 1984-04-20 1984-04-20 スクリユ−真空ポンプ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7840884A JPS60222583A (ja) 1984-04-20 1984-04-20 スクリユ−真空ポンプ

Publications (2)

Publication Number Publication Date
JPS60222583A JPS60222583A (ja) 1985-11-07
JPH0526038B2 true JPH0526038B2 (enrdf_load_stackoverflow) 1993-04-14

Family

ID=13661205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7840884A Granted JPS60222583A (ja) 1984-04-20 1984-04-20 スクリユ−真空ポンプ

Country Status (1)

Country Link
JP (1) JPS60222583A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012096057A1 (ja) * 2011-01-11 2012-07-19 アネスト岩田株式会社 ２軸式ロータポンプ

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62261689A (ja) * 1986-05-09 1987-11-13 Kobe Steel Ltd スクリユ式真空ポンプ
JP2515831B2 (ja) * 1987-12-18 1996-07-10 株式会社日立製作所 スクリユ―真空ポンプ
US5281116A (en) * 1993-01-29 1994-01-25 Eaton Corporation Supercharger vent

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5066209U (enrdf_load_stackoverflow) * 1973-10-19 1975-06-14
DE3047699A1 (de) * 1980-12-18 1982-07-01 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Waelzkolbenpumpe mit druckausgleichskammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012096057A1 (ja) * 2011-01-11 2012-07-19 アネスト岩田株式会社 ２軸式ロータポンプ

Also Published As

Publication number Publication date
JPS60222583A (ja) 1985-11-07

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term