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JPS5564172A - Oil thrower for hydraulic machinery - Google Patents

Oil thrower for hydraulic machinery

Info

Publication number
JPS5564172A
JPS5564172A JP13453278A JP13453278A JPS5564172A JP S5564172 A JPS5564172 A JP S5564172A JP 13453278 A JP13453278 A JP 13453278A JP 13453278 A JP13453278 A JP 13453278A JP S5564172 A JPS5564172 A JP S5564172A
Authority
JP
Japan
Prior art keywords
oil
operation chamber
screw seal
pressure
air
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
JP13453278A
Other languages
Japanese (ja)
Other versions
JPS6134580B2 (en
Inventor
Hidetomo Mori
Riichi Uchida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13453278A priority Critical patent/JPS5564172A/en
Publication of JPS5564172A publication Critical patent/JPS5564172A/en
Publication of JPS6134580B2 publication Critical patent/JPS6134580B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Sealing Of Bearings (AREA)
  • Compressor (AREA)

Abstract

PURPOSE: To prevent an oil mist from flowing into an operation chamber when a pressure working in the operation chamber drops below atmospheric pressure by using a screw seal on a sealing unit constituting an oil thrower.
CONSTITUTION: A screw seal 13 is used on a sealing unit constituting an oil thrower 7. Where a shaft 3 is turned in the direction indicated by arrow 15, the screw seal 13 operates for pumping and the air flows in the direction indicated by arrow 16. If a pressure working in an operation chamber 1 drops below atmospheric pressure, the air is sucked through an exhaust hole 6, however, the air can be allowed to flow in the direction indicated by arrow 16 by the screw seal 13 regardless of how the pressure works in the operation chamber 1 from designing the screw seal 13 such that the pressure in an oil reservoir 11 will exceed atmospheric pressure. The oil mist suspending in the oil reservoir 11 can therefore be discharged through a drain oil hole 12 together with the air, and thus the oil mist can be prevented from flowing into the operation chamber 1.
COPYRIGHT: (C)1980,JPO&Japio
JP13453278A 1978-11-02 1978-11-02 Oil thrower for hydraulic machinery Granted JPS5564172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13453278A JPS5564172A (en) 1978-11-02 1978-11-02 Oil thrower for hydraulic machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13453278A JPS5564172A (en) 1978-11-02 1978-11-02 Oil thrower for hydraulic machinery

Publications (2)

Publication Number Publication Date
JPS5564172A true JPS5564172A (en) 1980-05-14
JPS6134580B2 JPS6134580B2 (en) 1986-08-08

Family

ID=15130514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13453278A Granted JPS5564172A (en) 1978-11-02 1978-11-02 Oil thrower for hydraulic machinery

Country Status (1)

Country Link
JP (1) JPS5564172A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951190A (en) * 1982-09-17 1984-03-24 Hitachi Ltd Oil thrower device of oil-free screw compressor
JPS6047794A (en) * 1983-08-25 1985-03-15 Sanshin Ind Co Ltd Water intrusion preventing structure for vessel propulsion engine
JPS62791U (en) * 1985-06-20 1987-01-06
JPS62174592A (en) * 1985-10-12 1987-07-31 Kobe Steel Ltd Screw type vacuum pump
JPS62261689A (en) * 1986-05-09 1987-11-13 Kobe Steel Ltd Screw type vacuum pump
JPS63266193A (en) * 1986-09-30 1988-11-02 Jun Taga Pump
JPH02124289U (en) * 1989-03-24 1990-10-12
JP2002089474A (en) * 2000-09-08 2002-03-27 Hokuetsu Kogyo Co Ltd Shaft seal structure of oil-free screw compressor
WO2002038961A1 (en) * 2000-11-09 2002-05-16 Atlas Copco Airpower, Naamloze Vennootschap Rotor shaft sealing
JP2002327848A (en) * 2001-05-08 2002-11-15 Toyota Industries Corp Oil leakage prevention mechanism in vacuum pump
EP1267105A1 (en) * 2001-05-29 2002-12-18 Rossi Motoriduttori S.p.A. Dynamic sealing device
JP2009250170A (en) * 2008-04-09 2009-10-29 Kobe Steel Ltd Screw fluid machine
GB2422880B (en) * 2005-02-02 2009-11-25 Schlumberger Holdings Bearing arrangement
CN101846171A (en) * 2010-05-26 2010-09-29 中信大锰矿业有限责任公司 Method for preventing oil leakage of worm gear reducer
US9695704B2 (en) 2012-04-27 2017-07-04 Nuovo Pignone Srl High damping labyrinth seal with helicoidal and helicoidal-cylindrical mixed pattern
WO2017221835A1 (en) * 2016-06-24 2017-12-28 三菱重工サーマルシステムズ株式会社 Open-type compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4735559B2 (en) * 2007-02-09 2011-07-27 トヨタ自動車株式会社 Rotary atomizing electrostatic coating equipment

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951190A (en) * 1982-09-17 1984-03-24 Hitachi Ltd Oil thrower device of oil-free screw compressor
JPH0144914B2 (en) * 1982-09-17 1989-10-02 Hitachi Ltd
JPS6047794A (en) * 1983-08-25 1985-03-15 Sanshin Ind Co Ltd Water intrusion preventing structure for vessel propulsion engine
JPS62791U (en) * 1985-06-20 1987-01-06
JPH0234476Y2 (en) * 1985-06-20 1990-09-17
JPH0329996B2 (en) * 1985-10-12 1991-04-25
JPS62174592A (en) * 1985-10-12 1987-07-31 Kobe Steel Ltd Screw type vacuum pump
JPS62261689A (en) * 1986-05-09 1987-11-13 Kobe Steel Ltd Screw type vacuum pump
JPH0511240B2 (en) * 1986-09-30 1993-02-12 Jun Taga
JPS63266193A (en) * 1986-09-30 1988-11-02 Jun Taga Pump
JPH02124289U (en) * 1989-03-24 1990-10-12
JP2002089474A (en) * 2000-09-08 2002-03-27 Hokuetsu Kogyo Co Ltd Shaft seal structure of oil-free screw compressor
WO2002038961A1 (en) * 2000-11-09 2002-05-16 Atlas Copco Airpower, Naamloze Vennootschap Rotor shaft sealing
BE1013829A3 (en) * 2000-11-09 2002-09-03 Atlas Copco Airpower Nv Method for sealing of an axle of a rotor of IN A COMPRESSOR ELEMENT AND SEAL used therein.
JP2002327848A (en) * 2001-05-08 2002-11-15 Toyota Industries Corp Oil leakage prevention mechanism in vacuum pump
EP1267105A1 (en) * 2001-05-29 2002-12-18 Rossi Motoriduttori S.p.A. Dynamic sealing device
GB2422880B (en) * 2005-02-02 2009-11-25 Schlumberger Holdings Bearing arrangement
US7785012B2 (en) * 2005-02-02 2010-08-31 Schlumberger Technology Corporation Bearing arrangement
JP2009250170A (en) * 2008-04-09 2009-10-29 Kobe Steel Ltd Screw fluid machine
CN101846171A (en) * 2010-05-26 2010-09-29 中信大锰矿业有限责任公司 Method for preventing oil leakage of worm gear reducer
US9695704B2 (en) 2012-04-27 2017-07-04 Nuovo Pignone Srl High damping labyrinth seal with helicoidal and helicoidal-cylindrical mixed pattern
WO2017221835A1 (en) * 2016-06-24 2017-12-28 三菱重工サーマルシステムズ株式会社 Open-type compressor

Also Published As

Publication number Publication date
JPS6134580B2 (en) 1986-08-08

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