JPS57135292A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS57135292A
JPS57135292A JP1984881A JP1984881A JPS57135292A JP S57135292 A JPS57135292 A JP S57135292A JP 1984881 A JP1984881 A JP 1984881A JP 1984881 A JP1984881 A JP 1984881A JP S57135292 A JPS57135292 A JP S57135292A
Authority
JP
Japan
Prior art keywords
oil
rotor
sliding
sealing
supplied
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
JP1984881A
Other languages
Japanese (ja)
Other versions
JPH0128233B2 (en
Inventor
Shozo Saito
Yasuo Ikezaki
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Priority to JP56019848A priority Critical patent/JPH0128233B2/ja
Publication of JPS57135292A publication Critical patent/JPS57135292A/en
Publication of JPH0128233B2 publication Critical patent/JPH0128233B2/ja
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007Injection of a fluid in the working chamber for sealing, cooling and lubricating

Abstract

PURPOSE:To improve lubrication of rotors and sealing of a rotor operating space of a screw compressor, by feeding oil of a relatively low temperature, and thereby increasing the viscosity of oil. CONSTITUTION:Since journal bearings 6, 7 are located on the suction side, pressure oil supplied to an oil passage 67 is of a relatively low temperature and its viscosity is fairly high, so that it has a satisfactory lubricating performance. This pressure oil is supplied from an oil passage 68 to a sliding surface between a female rotor 5 and a rotor casing 1 for lubricating and sealing the sliding surface, and it also lubricates and seals a sliding surface between the female rotor 5 and a male rotor 4. The flow of oil thus supplied to the sliding surface between the rotor housing 1 and female rotor 5 is branched into an oil passage 69 for lubricating a shaft sealing means 18, and then oil is discharged to an outlet port. Therefore, it is enabled to improve lubrication of rotors and sealing of the rotor operating space.
JP56019848A 1981-02-12 1981-02-12 Expired JPH0128233B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019848A JPH0128233B2 (en) 1981-02-12 1981-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019848A JPH0128233B2 (en) 1981-02-12 1981-02-12

Publications (2)

Publication Number Publication Date
JPS57135292A true JPS57135292A (en) 1982-08-20
JPH0128233B2 JPH0128233B2 (en) 1989-06-01

Family

ID=12010665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019848A Expired JPH0128233B2 (en) 1981-02-12 1981-02-12

Country Status (1)

Country Link
JP (1) JPH0128233B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006013636A1 (en) * 2004-08-03 2006-02-09 Mayekawa Mfg.Co.,Ltd. Lubricant supply system and operating method of multisystem lubrication screw compressor
EP1705379A1 (en) * 2003-12-22 2006-09-27 Mitsubishi Denki Kabushiki Kaisha Screw compressor
JP2015078623A (en) * 2013-10-15 2015-04-23 株式会社神戸製鋼所 Compressor and oil supply method therefor
US10288069B2 (en) 2013-12-18 2019-05-14 Carrier Corporation Refrigerant compressor lubricant viscosity enhancement
CN109779906A (en) * 2019-03-14 2019-05-21 西安交通大学 A kind of double-screw compressor transverse bearing composite structure with sealing function

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04111347U (en) * 1991-03-12 1992-09-28

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546011A (en) * 1978-09-26 1980-03-31 Hokuetsu Kogyo Co Ltd Oil cooled screw compressor with regulating valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546011A (en) * 1978-09-26 1980-03-31 Hokuetsu Kogyo Co Ltd Oil cooled screw compressor with regulating valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705379A1 (en) * 2003-12-22 2006-09-27 Mitsubishi Denki Kabushiki Kaisha Screw compressor
EP1705379A4 (en) * 2003-12-22 2011-12-21 Mitsubishi Electric Corp Screw compressor
WO2006013636A1 (en) * 2004-08-03 2006-02-09 Mayekawa Mfg.Co.,Ltd. Lubricant supply system and operating method of multisystem lubrication screw compressor
EP1780416A1 (en) * 2004-08-03 2007-05-02 Mayekawa Mfg. Co., Ltd. Lubricant supply system and operating method of multisystem lubrication screw compressor
US7347301B2 (en) 2004-08-03 2008-03-25 Mayekawa Mfg. Co., Ltd. Lubricant supply system and operating method of multisystem lubrication screw compressor
EP1780416A4 (en) * 2004-08-03 2011-03-09 Maekawa Seisakusho Kk Lubricant supply system and operating method of multisystem lubrication screw compressor
JP2015078623A (en) * 2013-10-15 2015-04-23 株式会社神戸製鋼所 Compressor and oil supply method therefor
EP2863060B1 (en) 2013-10-15 2016-07-13 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Screw Compressor and oil supply method thereof
EP2863060B2 (en) 2013-10-15 2019-03-20 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Screw Compressor and oil supply method thereof
US10288069B2 (en) 2013-12-18 2019-05-14 Carrier Corporation Refrigerant compressor lubricant viscosity enhancement
CN109779906A (en) * 2019-03-14 2019-05-21 西安交通大学 A kind of double-screw compressor transverse bearing composite structure with sealing function

Also Published As

Publication number Publication date
JPH0128233B2 (en) 1989-06-01

Similar Documents

Publication Publication Date Title
US4173440A (en) Method and device for lubricating compressors
US3004782A (en) Shaft seal
SE9703054D0 (en) Oil-free screw rotor machine
US4995797A (en) Rotary screw vacuum pump with pressure controlled valve for lubrication/sealing fluid
JPS643295A (en) Vane type compressor
JPS5468510A (en) Gas leak preventive method for self-lubricating screw compressor
JPS57135292A (en) Screw compressor
ES8603625A1 (en) Wet motor fuel pump with fuel flow through the bearing for cooling thereof
US4457679A (en) Vane pump with unilateral bearing
ES275051A1 (en) Rotary pump or motor
JPS59115492A (en) Nonlubricating type screw compressor
JPS58217783A (en) Swash plate type compressor
JPS59213984A (en) Bearing device in vane type rotary compressor
JPS59180093A (en) Enclosed type scroll compressor
JPS54154811A (en) Screw compressor
US2785851A (en) Pump and/or rotative compressor with prismatic pistons
JPS63186988A (en) Rotary compressor
JPS5776297A (en) Screw compressor
JPS5954816A (en) Bearing mechanizm for turbo charger
GB1386836A (en) Sliding vane rotary compressors
JPS551415A (en) Oil circuit for rotary engine
SU1521915A1 (en) Vacuum pump
JPS6350696A (en) Rotary compressor
JPS5993976A (en) Gas compressor
JPH01301971A (en) Scroll compressor