JPH0272383U - - Google Patents

Info

Publication number
JPH0272383U
JPH0272383U JP15109288U JP15109288U JPH0272383U JP H0272383 U JPH0272383 U JP H0272383U JP 15109288 U JP15109288 U JP 15109288U JP 15109288 U JP15109288 U JP 15109288U JP H0272383 U JPH0272383 U JP H0272383U
Authority
JP
Japan
Prior art keywords
oil
pump
filter
feed pump
valve mechanism
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
JP15109288U
Other languages
Japanese (ja)
Other versions
JPH078870Y2 (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 JP15109288U priority Critical patent/JPH078870Y2/en
Publication of JPH0272383U publication Critical patent/JPH0272383U/ja
Application granted granted Critical
Publication of JPH078870Y2 publication Critical patent/JPH078870Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す２連形の油回
転真空ポンプの縦断面図であり、第２図はその要
部の詳細拡大図である。 ……第１段ポンプ本体、……第２段ポンプ
本体、……油送りポンプ、１……ベースボデイ
、３……駆動軸、３ｂ……駆動軸延出端、１１…
…吸込口、１２……油槽ケース、Ｏ……油、２１
……吸込ポート、２２……フイルター、２３……
吐出口、２４，２５……油通路、２６……弁機構
、Ｎ……配管、Ｌ……リリーフ路。 FIG. 1 is a vertical cross-sectional view of a double oil rotary vacuum pump showing an embodiment of the present invention, and FIG. 2 is a detailed enlarged view of the main parts thereof. ...First stage pump body, ...Second stage pump main body, ...Oil feed pump, 1...Base body, 3...Drive shaft, 3b...Drive shaft extension end, 11...
...Suction port, 12...Oil tank case, O...Oil, 21
...Suction port, 22...Filter, 23...
Discharge port, 24, 25...oil passage, 26...valve mechanism, N...piping, L...relief path.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ポンプ本体の反モータ側でその駆動軸端に油送
りポンプを設け油槽ケース内の油面下にフイルタ
ーを介して該油送りポンプの吸込口を開口させ、
かつこの油送りポンプから前記ポンプ本体に油を
送り込む油通路にポンプ停止時での油の侵入を阻
止する弁機構を設けた真空ポンプにおいて、前記
弁機構のポンプ作動時における送油の一部を油槽
に帰還させる配管を設けるとともに、この配管の
先端を前記フイルターに指向するよう曲折したこ
とを特徴とする油回転真空ポンプ。 An oil feed pump is provided at the end of the drive shaft on the side opposite to the motor of the pump body, and the suction port of the oil feed pump is opened below the oil level in the oil tank case through a filter.
In a vacuum pump in which an oil passage for sending oil from the oil feed pump to the pump body is provided with a valve mechanism that prevents oil from entering when the pump is stopped, a part of the oil feeding when the valve mechanism is in operation is provided. An oil rotary vacuum pump characterized in that a pipe for returning to the oil tank is provided, and the tip of the pipe is bent so as to point toward the filter.
JP15109288U 1988-11-18 1988-11-18 Oil rotary vacuum pump Expired - Lifetime JPH078870Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15109288U JPH078870Y2 (en) 1988-11-18 1988-11-18 Oil rotary vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15109288U JPH078870Y2 (en) 1988-11-18 1988-11-18 Oil rotary vacuum pump

Publications (2)

Publication Number Publication Date
JPH0272383U true JPH0272383U (en) 1990-06-01
JPH078870Y2 JPH078870Y2 (en) 1995-03-06

Family

ID=31424825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15109288U Expired - Lifetime JPH078870Y2 (en) 1988-11-18 1988-11-18 Oil rotary vacuum pump

Country Status (1)

Country Link
JP (1) JPH078870Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096220A1 (en) * 2008-01-29 2009-08-06 Mitsubishi Heavy Industries, Ltd. Enclosed compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096220A1 (en) * 2008-01-29 2009-08-06 Mitsubishi Heavy Industries, Ltd. Enclosed compressor

Also Published As

Publication number Publication date
JPH078870Y2 (en) 1995-03-06

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