JPS5776298A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS5776298A
JPS5776298A JP15284280A JP15284280A JPS5776298A JP S5776298 A JPS5776298 A JP S5776298A JP 15284280 A JP15284280 A JP 15284280A JP 15284280 A JP15284280 A JP 15284280A JP S5776298 A JPS5776298 A JP S5776298A
Authority
JP
Japan
Prior art keywords
oil
rotor
oil passage
space
lubricating
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
JP15284280A
Other languages
Japanese (ja)
Other versions
JPS6160997B2 (en
Inventor
Shozo Saito
Yasuo Ikezaki
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.)
Ebara Corp
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 JP15284280A priority Critical patent/JPS5776298A/en
Publication of JPS5776298A publication Critical patent/JPS5776298A/en
Publication of JPS6160997B2 publication Critical patent/JPS6160997B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rotary-Type Compressors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: To improve the performance for lubricating rotors and for sealing a rotor operated space, by feeding lubricating oil to bearings located on the suction side, and returning oil subjected to small temperature rise to the rotor space after closing of the suction opening.
CONSTITUTION: Oil passed into an oil passage 43 from an inlet 41 of a discharge casing 3 flows through oil grooves 59, 61 and is carried into an oil passage 67 via chambers 64, 65 after the oil pressure is controlled by an orifice. Here, since the oil passage 67 is located on the suction side and is provided for cooling and lubricating bearings 6, 7 whose temperatures are relatively low, the oil does not lose its viscosity. The oil passes through a space between a rotor housing 1 and a rotor 5 and is then fed to a space formed between a rotor 4 and the housing 1 from an intermeidate portion of the oil passage 43 via an oil passage 71 at the time when the suction opening is closed or about the aforementioned time.
COPYRIGHT: (C)1982,JPO&Japio
JP15284280A 1980-10-30 1980-10-30 Screw compressor Granted JPS5776298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15284280A JPS5776298A (en) 1980-10-30 1980-10-30 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15284280A JPS5776298A (en) 1980-10-30 1980-10-30 Screw compressor

Publications (2)

Publication Number Publication Date
JPS5776298A true JPS5776298A (en) 1982-05-13
JPS6160997B2 JPS6160997B2 (en) 1986-12-23

Family

ID=15549317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15284280A Granted JPS5776298A (en) 1980-10-30 1980-10-30 Screw compressor

Country Status (1)

Country Link
JP (1) JPS5776298A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013931A3 (en) * 2001-01-25 2002-12-03 Atlas Copco Airpower Nv Gas compressor with oil injection screw compressor element, which does not need separate inlet for oil supply
EP1705379A1 (en) * 2003-12-22 2006-09-27 Mitsubishi Denki Kabushiki Kaisha Screw compressor
WO2021084996A1 (en) * 2019-10-31 2021-05-06 株式会社日立産機システム Compressor body and compressor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013931A3 (en) * 2001-01-25 2002-12-03 Atlas Copco Airpower Nv Gas compressor with oil injection screw compressor element, which does not need separate inlet for oil supply
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
WO2021084996A1 (en) * 2019-10-31 2021-05-06 株式会社日立産機システム Compressor body and compressor
JPWO2021084996A1 (en) * 2019-10-31 2021-05-06
CN114599883A (en) * 2019-10-31 2022-06-07 株式会社日立产机系统 Compressor body and compressor
US11965510B2 (en) 2019-10-31 2024-04-23 Hitachi Industrial Equipment Systems Co., Ltd. Compressor body and compressor to supply liquid into working chambers and whose downstream portion reaches a suction bearing chamber

Also Published As

Publication number Publication date
JPS6160997B2 (en) 1986-12-23

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