JPH02137591U - - Google Patents

Info

Publication number
JPH02137591U
JPH02137591U JP4724789U JP4724789U JPH02137591U JP H02137591 U JPH02137591 U JP H02137591U JP 4724789 U JP4724789 U JP 4724789U JP 4724789 U JP4724789 U JP 4724789U JP H02137591 U JPH02137591 U JP H02137591U
Authority
JP
Japan
Prior art keywords
pump
oil
oil supply
chamber
supply passage
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
JP4724789U
Other languages
English (en)
Other versions
JPH075274Y2 (ja
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 JP4724789U priority Critical patent/JPH075274Y2/ja
Publication of JPH02137591U publication Critical patent/JPH02137591U/ja
Application granted granted Critical
Publication of JPH075274Y2 publication Critical patent/JPH075274Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図はこの考案の実施例の縦断面図、第2図
は同実施例の展開断面図、第3図はこの考案の他
の実施例の縦断面図、第4図は従来の2段式油回
転ポンプの縦断面図、第5図は同従来例の展開断
面図である。 2……第1のポンプのポンプ室、3……第2の
ポンプのポンプ室、4……回転駆動軸、5及び6
……ローター、7及び8……吸入口、9及び10
……吐出口、12……給油ポンプ、14及び19
……給油路、18……開閉弁。

Claims (1)

    【実用新案登録請求の範囲】
  1. 第1及び第2の油回転真空ポンプの各ローター
    を共通の回転駆動軸に取付け、第1のポンプの排
    気口を第2のポンプの吸入口に接続し、第2のポ
    ンプのポンプ室に給油ポンプを接続し、第1のポ
    ンプのポンプ室と第2のポンプのポンプ室との間
    に給油路を設けた2段式油回転真空ポンプにおい
    て、上記給油ポンプと上記給油路または第1のポ
    ンプのポンプ室との間に開閉弁を有する給油路を
    設けたことを特徴とする2段式油回転真空ポンプ
JP4724789U 1989-04-21 1989-04-21 2段式油回転真空ポンプ Expired - Lifetime JPH075274Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4724789U JPH075274Y2 (ja) 1989-04-21 1989-04-21 2段式油回転真空ポンプ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4724789U JPH075274Y2 (ja) 1989-04-21 1989-04-21 2段式油回転真空ポンプ

Publications (2)

Publication Number Publication Date
JPH02137591U true JPH02137591U (ja) 1990-11-16
JPH075274Y2 JPH075274Y2 (ja) 1995-02-08

Family

ID=31563010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4724789U Expired - Lifetime JPH075274Y2 (ja) 1989-04-21 1989-04-21 2段式油回転真空ポンプ

Country Status (1)

Country Link
JP (1) JPH075274Y2 (ja)

Also Published As

Publication number Publication date
JPH075274Y2 (ja) 1995-02-08

Similar Documents

Publication Publication Date Title
JPS6334387U (ja)
JPH02137591U (ja)
JPH0197041U (ja)
JPH02141687U (ja)
JPS62105384U (ja)
JPH03123995U (ja)
JPH0243483U (ja)
JPS6322395U (ja)
JPH01174584U (ja)
JPH0243482U (ja)
JPH0287975U (ja)
JPS6422886U (ja)
JPH03123996U (ja)
JPS6451777U (ja)
JPS6228045U (ja)
JPH0218666U (ja)
JPS63112292U (ja)
JPH0246083U (ja)
JPH0317298U (ja)
JPH02114790U (ja)
JPS6360029U (ja)
JPH02118181U (ja)
JPS63112293U (ja)
JPS62130135U (ja)
JPH0212092U (ja)