JPH0325873U - - Google Patents

Info

Publication number
JPH0325873U
JPH0325873U JP8672989U JP8672989U JPH0325873U JP H0325873 U JPH0325873 U JP H0325873U JP 8672989 U JP8672989 U JP 8672989U JP 8672989 U JP8672989 U JP 8672989U JP H0325873 U JPH0325873 U JP H0325873U
Authority
JP
Japan
Prior art keywords
flow rate
vacuum
detection means
positive displacement
evacuation device
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
JP8672989U
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 JP8672989U priority Critical patent/JPH0325873U/ja
Publication of JPH0325873U publication Critical patent/JPH0325873U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の実施例の系統図、第2図は
同じく実施例の排気時間と排気流量の関係を示し
たグラフ、第3図は従来の真空排気装置の系統図
、第4図は同じく従来装置の排気時間と排気流量
の関係を示したグラフである。 1…真空容器、2…油回転真空ポンプ、3…流
量計、4…制御器、5…管路、6…流量情報。

Claims (1)

    【実用新案登録請求の範囲】
  1. 一端が真空容器に接続された配管の他端に容積
    移送式真空ポンプを接続してなる真空排気装置に
    おいて、前記配管に流量検出手段が設けてあると
    共に、前記容積移送式真空ポンプの回転数が流量
    検出手段で検出した流量情報に基づいて制御され
    ていることを特徴とした真空排気装置。
JP8672989U 1989-07-24 1989-07-24 Pending JPH0325873U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8672989U JPH0325873U (ja) 1989-07-24 1989-07-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8672989U JPH0325873U (ja) 1989-07-24 1989-07-24

Publications (1)

Publication Number Publication Date
JPH0325873U true JPH0325873U (ja) 1991-03-18

Family

ID=31636355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8672989U Pending JPH0325873U (ja) 1989-07-24 1989-07-24

Country Status (1)

Country Link
JP (1) JPH0325873U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002541541A (ja) * 1999-04-07 2002-12-03 アルカテル 真空チャンバ内の圧力を調整するためのシステム、このシステムを装備した真空ポンピングユニット
JP2018159682A (ja) * 2017-03-24 2018-10-11 株式会社日立ハイテクノロジーズ 自動分析装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713286A (en) * 1980-06-30 1982-01-23 Toshiba Corp Operating method of vacuum pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713286A (en) * 1980-06-30 1982-01-23 Toshiba Corp Operating method of vacuum pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002541541A (ja) * 1999-04-07 2002-12-03 アルカテル 真空チャンバ内の圧力を調整するためのシステム、このシステムを装備した真空ポンピングユニット
JP2018159682A (ja) * 2017-03-24 2018-10-11 株式会社日立ハイテクノロジーズ 自動分析装置
US11624752B2 (en) 2017-03-24 2023-04-11 Hitachi High-Tech Corporation Automatic analyzer

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