JPS61144289U - - Google Patents

Info

Publication number
JPS61144289U
JPS61144289U JP2885185U JP2885185U JPS61144289U JP S61144289 U JPS61144289 U JP S61144289U JP 2885185 U JP2885185 U JP 2885185U JP 2885185 U JP2885185 U JP 2885185U JP S61144289 U JPS61144289 U JP S61144289U
Authority
JP
Japan
Prior art keywords
sealing device
shaft sealing
oil
shaft
labyrinth
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
JP2885185U
Other languages
Japanese (ja)
Other versions
JPH03550Y2 (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 JP1985028851U priority Critical patent/JPH03550Y2/ja
Publication of JPS61144289U publication Critical patent/JPS61144289U/ja
Application granted granted Critical
Publication of JPH03550Y2 publication Critical patent/JPH03550Y2/ja
Expired legal-status Critical Current

Links

Description

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

第１図は本考案の軸封装置を装着したオイルフ
リースクリユ圧縮機の要部断面図で、第２図は第
１、第２軸封装置部分の拡大断面図である。 １…雌ロータ、２，４…ロータ軸、３…雄ロー
タ、７…軸受装置、８…第１軸封装置、１２…第
２軸封装置、１３…ラビリンス、１４，１５…環
状溝部、１６…孔、１８…油排出室、２０…第１
大気連通部、２２…ノズル、２３…第２大気連通
部。 FIG. 1 is a sectional view of a main part of an oil-free screw compressor equipped with a shaft sealing device of the present invention, and FIG. 2 is an enlarged sectional view of the first and second shaft sealing devices. DESCRIPTION OF SYMBOLS 1... Female rotor, 2, 4... Rotor shaft, 3... Male rotor, 7... Bearing device, 8... First shaft sealing device, 12... Second shaft sealing device, 13... Labyrinth, 14, 15... Annular groove, 16 ...hole, 18...oil discharge chamber, 20...first
Atmospheric communication section, 22... nozzle, 23... second atmospheric communication section.

Claims (1)

【実用新案登録請求の範囲】 (1) 少なくともロータの吸込側において、ロー
タ室の吸込側とロータ軸の注油式軸受装置との間
に、前記吸込側から、第１大気連通部を有する第
１軸封装置と、内面にラビリンスを備え、前記第
１軸封装置側に第２大気連通部を有する第２軸封
装置と、この第２軸封装置と前記軸受装置との間
に、軸受装置からの潤滑油を大気に連通する油排
出室とを設けたことを特徴とするオイルフリース
クリユ圧縮機の軸封装置。 (2) 前記ラビリンスが、ロータの回転によりラ
ビリンス内流体が軸受装置側に流動するように作
用するものであることを特徴とする前記実用新案
登録請求の範囲第１項に記載のオイルフリースク
リユ圧縮機の軸封装置。 (3) 前記第２軸封装置の第２大気連通部より吸
込側にラビリンスが設けられていないことを特徴
とする前記実用新案登録請求の範囲第１項または
第２項に記載のオイルフリースクリユ圧縮機の軸
封装置。 (4) 前記ラビリンスが、第２軸封装置の全長に
わたつて設けてあることを特徴とする前記実用新
案登録請求の範囲第１項または第２項に記載のオ
イルフリースクリユ圧縮機の軸封装置。[Claims for Utility Model Registration] (1) At least on the suction side of the rotor, between the suction side of the rotor chamber and the oil-lubricated bearing device of the rotor shaft, a first atmosphere communication portion is provided from the suction side to the rotor shaft. a shaft sealing device, a second shaft sealing device having a labyrinth on its inner surface and a second atmospheric communication portion on the first shaft sealing device side, and a bearing device between the second shaft sealing device and the bearing device. A shaft sealing device for an oil-free screw compressor, characterized in that it is provided with an oil discharge chamber that communicates lubricating oil from the compressor to the atmosphere. (2) The oil-free screwdriver according to claim 1, wherein the labyrinth acts so that the fluid in the labyrinth flows toward the bearing device due to rotation of the rotor. Compressor shaft sealing device. (3) The oil-free screen according to claim 1 or 2, characterized in that a labyrinth is not provided on the suction side of the second atmospheric communication part of the second shaft sealing device. Shaft sealing device for Yu compressor. (4) The shaft of the oil-free screw compressor according to claim 1 or 2, wherein the labyrinth is provided over the entire length of the second shaft sealing device. Sealing device.
JP1985028851U 1985-02-27 1985-02-27 Expired JPH03550Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985028851U JPH03550Y2 (en) 1985-02-27 1985-02-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985028851U JPH03550Y2 (en) 1985-02-27 1985-02-27

Publications (2)

Publication Number Publication Date
JPS61144289U true JPS61144289U (en) 1986-09-05
JPH03550Y2 JPH03550Y2 (en) 1991-01-10

Family

ID=30527119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985028851U Expired JPH03550Y2 (en) 1985-02-27 1985-02-27

Country Status (1)

Country Link
JP (1) JPH03550Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016070271A (en) * 2014-09-29 2016-05-09 株式会社神戸製鋼所 Oil-free screw compressor
JP2017066935A (en) * 2015-09-29 2017-04-06 株式会社神戸製鋼所 Screw compressor
WO2017164153A1 (en) 2016-03-25 2017-09-28 株式会社神戸製鋼所 Oil free screw compressor
KR101851482B1 (en) * 2014-03-10 2018-04-23 가부시키가이샤 고베 세이코쇼 Oil-free screw compressor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193997A (en) * 1982-05-07 1983-11-11 Hitachi Ltd Oil throwing apparatus for fluid machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193997A (en) * 1982-05-07 1983-11-11 Hitachi Ltd Oil throwing apparatus for fluid machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101851482B1 (en) * 2014-03-10 2018-04-23 가부시키가이샤 고베 세이코쇼 Oil-free screw compressor
US10138889B2 (en) 2014-03-10 2018-11-27 Kobe Steel, Ltd. Oil-free screw compressor
JP2016070271A (en) * 2014-09-29 2016-05-09 株式会社神戸製鋼所 Oil-free screw compressor
US10359043B2 (en) 2014-09-29 2019-07-23 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Oil-free screw compressor
JP2017066935A (en) * 2015-09-29 2017-04-06 株式会社神戸製鋼所 Screw compressor
WO2017164153A1 (en) 2016-03-25 2017-09-28 株式会社神戸製鋼所 Oil free screw compressor
KR20180112038A (en) 2016-03-25 2018-10-11 가부시키가이샤 고베 세이코쇼 Oil-free screw compressor
CN108884834A (en) * 2016-03-25 2018-11-23 株式会社神户制钢所 Oil free screw compressor
US10954941B2 (en) 2016-03-25 2021-03-23 Kobe Steel, Ltd. Oil-free screw compressor

Also Published As

Publication number Publication date
JPH03550Y2 (en) 1991-01-10

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