JPH0475196U - - Google Patents

Info

Publication number
JPH0475196U
JPH0475196U JP11721190U JP11721190U JPH0475196U JP H0475196 U JPH0475196 U JP H0475196U JP 11721190 U JP11721190 U JP 11721190U JP 11721190 U JP11721190 U JP 11721190U JP H0475196 U JPH0475196 U JP H0475196U
Authority
JP
Japan
Prior art keywords
groove
vacuum pump
spiral
rotating body
carved
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
JP11721190U
Other languages
English (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 JP11721190U priority Critical patent/JPH0475196U/ja
Publication of JPH0475196U publication Critical patent/JPH0475196U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Non-Positive Displacement Air Blowers (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例に係る複合型真空ポ
ンプの縦断面図、第2図は本考案の他の実施例に
係る複合型真空ポンプの縦断面図、第3図は従来
の複合型真空ポンプの縦断面図である。 1……回転体、1a……軸流段動翼、1b……
軸流段静翼、9a,9b,10a,10b……ね
じ溝型ポンプ段、21……吸気口、22……排気
口。

Claims (1)

    【実用新案登録請求の範囲】
  1. 静止側の円筒内でスパイラル状の第一の溝が刻
    設された回転体が回転し吸気口から吸気した気体
    を圧縮して排気口から排気する真空ポンプにおい
    て、上記円筒に上記回転体と対峙して刻設され上
    記第一の溝とねじ溝角度が軸心に対して互いに線
    対称をなすスパイラル状の第二の溝を備えたこと
    を特徴とする真空ポンプ。
JP11721190U 1990-11-09 1990-11-09 Pending JPH0475196U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11721190U JPH0475196U (ja) 1990-11-09 1990-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11721190U JPH0475196U (ja) 1990-11-09 1990-11-09

Publications (1)

Publication Number Publication Date
JPH0475196U true JPH0475196U (ja) 1992-06-30

Family

ID=31865093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11721190U Pending JPH0475196U (ja) 1990-11-09 1990-11-09

Country Status (1)

Country Link
JP (1) JPH0475196U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015117697A (ja) * 2013-12-18 2015-06-25 プファイファー・ヴァキューム・ゲーエムベーハー 真空ポンプ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60153494A (ja) * 1984-01-20 1985-08-12 Hitachi Ltd ねじ溝分子ポンプ
JPS60182394A (ja) * 1984-02-29 1985-09-17 Shimadzu Corp タ−ボ分子ポンプ
JPS6341695A (ja) * 1986-08-07 1988-02-22 Seiko Seiki Co Ltd タ−ボ分子ポンプ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60153494A (ja) * 1984-01-20 1985-08-12 Hitachi Ltd ねじ溝分子ポンプ
JPS60182394A (ja) * 1984-02-29 1985-09-17 Shimadzu Corp タ−ボ分子ポンプ
JPS6341695A (ja) * 1986-08-07 1988-02-22 Seiko Seiki Co Ltd タ−ボ分子ポンプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015117697A (ja) * 2013-12-18 2015-06-25 プファイファー・ヴァキューム・ゲーエムベーハー 真空ポンプ

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