JPS61234290A - 多段スクリユ−真空ポンプ装置 - Google Patents

多段スクリユ−真空ポンプ装置

Info

Publication number
JPS61234290A
JPS61234290A JP7424585A JP7424585A JPS61234290A JP S61234290 A JPS61234290 A JP S61234290A JP 7424585 A JP7424585 A JP 7424585A JP 7424585 A JP7424585 A JP 7424585A JP S61234290 A JPS61234290 A JP S61234290A
Authority
JP
Japan
Prior art keywords
screw block
casing
stage screw
stage
gear
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
JP7424585A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0370119B2 (enrdf_load_html_response
Inventor
Kotaro Naya
納谷 孝太郎
Yasuo Takahashi
康夫 高橋
Katsumi Matsubara
松原 克躬
Riichi Uchida
利一 内田
Seiji Tsuru
誠司 鶴
Masatoshi Muramatsu
村松 正敏
Naoyuki Tanaka
直行 田中
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 JP7424585A priority Critical patent/JPS61234290A/ja
Publication of JPS61234290A publication Critical patent/JPS61234290A/ja
Publication of JPH0370119B2 publication Critical patent/JPH0370119B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
JP7424585A 1985-04-10 1985-04-10 多段スクリユ−真空ポンプ装置 Granted JPS61234290A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7424585A JPS61234290A (ja) 1985-04-10 1985-04-10 多段スクリユ−真空ポンプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7424585A JPS61234290A (ja) 1985-04-10 1985-04-10 多段スクリユ−真空ポンプ装置

Publications (2)

Publication Number Publication Date
JPS61234290A true JPS61234290A (ja) 1986-10-18
JPH0370119B2 JPH0370119B2 (enrdf_load_html_response) 1991-11-06

Family

ID=13541581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7424585A Granted JPS61234290A (ja) 1985-04-10 1985-04-10 多段スクリユ−真空ポンプ装置

Country Status (1)

Country Link
JP (1) JPS61234290A (enrdf_load_html_response)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314320A (en) * 1991-07-10 1994-05-24 Ebara Corporation Screw vacuum pump with a reduced starting load
US5374170A (en) * 1991-07-10 1994-12-20 Ebara Corporation Screw vacuum pump
WO2004109112A1 (en) * 2003-06-11 2004-12-16 Lee, Ki-Chun Four-in pump
EP1979619A4 (en) * 2006-01-31 2013-07-24 Ebara Corp VACUUM UNIT
KR20180084964A (ko) * 2015-12-25 2018-07-25 가부시키가이샤 고베 세이코쇼 스크루 압축기
CN115726962A (zh) * 2022-12-15 2023-03-03 淄博水环真空泵厂有限公司 一种气量可调整的水环泵抽真空系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167510A (ja) * 1974-12-10 1976-06-11 Kobe Steel Ltd Takitosukuryuushikiatsushukuki
JPS5535168A (en) * 1978-09-06 1980-03-12 Hitachi Ltd Screw type fluid machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167510A (ja) * 1974-12-10 1976-06-11 Kobe Steel Ltd Takitosukuryuushikiatsushukuki
JPS5535168A (en) * 1978-09-06 1980-03-12 Hitachi Ltd Screw type fluid machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314320A (en) * 1991-07-10 1994-05-24 Ebara Corporation Screw vacuum pump with a reduced starting load
US5374170A (en) * 1991-07-10 1994-12-20 Ebara Corporation Screw vacuum pump
WO2004109112A1 (en) * 2003-06-11 2004-12-16 Lee, Ki-Chun Four-in pump
EP1979619A4 (en) * 2006-01-31 2013-07-24 Ebara Corp VACUUM UNIT
KR20180084964A (ko) * 2015-12-25 2018-07-25 가부시키가이샤 고베 세이코쇼 스크루 압축기
CN108431420A (zh) * 2015-12-25 2018-08-21 株式会社神户制钢所 螺杆式压缩机
CN108431420B (zh) * 2015-12-25 2019-11-15 株式会社神户制钢所 螺杆式压缩机
US11067082B2 (en) 2015-12-25 2021-07-20 Kobe Steel, Ltd. Screw compressor
CN115726962A (zh) * 2022-12-15 2023-03-03 淄博水环真空泵厂有限公司 一种气量可调整的水环泵抽真空系统
CN115726962B (zh) * 2022-12-15 2023-05-30 淄博水环真空泵厂有限公司 一种气量可调整的水环泵抽真空系统

Also Published As

Publication number Publication date
JPH0370119B2 (enrdf_load_html_response) 1991-11-06

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term