JPS557948A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS557948A
JPS557948A JP8030678A JP8030678A JPS557948A JP S557948 A JPS557948 A JP S557948A JP 8030678 A JP8030678 A JP 8030678A JP 8030678 A JP8030678 A JP 8030678A JP S557948 A JPS557948 A JP S557948A
Authority
JP
Japan
Prior art keywords
screw
rotors
oil supply
supply ports
parts
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
JP8030678A
Other languages
Japanese (ja)
Other versions
JPS6124555B2 (en
Inventor
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 JP8030678A priority Critical patent/JPS557948A/en
Publication of JPS557948A publication Critical patent/JPS557948A/en
Publication of JPS6124555B2 publication Critical patent/JPS6124555B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent the lowering of efficiency in a screw compressor to rotate a pair of screw rotors mutually engaged in a rotor chamber to compress gas by providing pressure-reducing chambers between oil supply ports of bearings and screw parts of rotors.
CONSTITUTION: A screw compressor is provided with a male and a female rotor with a male serew 25 and a female screw 26 mutually engaged to be supported by two central shafts 55 and 56 to be rotatable, and used to compress gas sucked from a suction port 3 by the rotation of both rotors and discharge through a discharge port 2. Here, lubricating oil supply ports 71 and 72 are opened on bearings 49 and 51 to support shaft necks of rotors near screw parts, while between these oil supply ports 71 and 72 and screw parts, annular pressure-reducing chambers 82 and 84 are provided to cover outsides of neck parts partly, and connected to a rotor chamber oil supply port 90 through connecting passages 86, 88, 73, and 93.
COPYRIGHT: (C)1980,JPO&Japio
JP8030678A 1978-07-01 1978-07-01 Screw compressor Granted JPS557948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8030678A JPS557948A (en) 1978-07-01 1978-07-01 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8030678A JPS557948A (en) 1978-07-01 1978-07-01 Screw compressor

Publications (2)

Publication Number Publication Date
JPS557948A true JPS557948A (en) 1980-01-21
JPS6124555B2 JPS6124555B2 (en) 1986-06-11

Family

ID=13714582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8030678A Granted JPS557948A (en) 1978-07-01 1978-07-01 Screw compressor

Country Status (1)

Country Link
JP (1) JPS557948A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882087A (en) * 1981-11-10 1983-05-17 Ebara Corp Screw compressor
JPS58152190A (en) * 1982-03-02 1983-09-09 ダンハム・ブツシユ・インコ−ポレ−テツド Helical-screw-rotary compressor
JPS59215985A (en) * 1983-05-20 1984-12-05 Ebara Corp Screw compressor
US7722345B2 (en) 2006-06-05 2010-05-25 Denso Corporation Screw compressor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882087A (en) * 1981-11-10 1983-05-17 Ebara Corp Screw compressor
JPH0147637B2 (en) * 1981-11-10 1989-10-16 Ebara Mfg
JPS58152190A (en) * 1982-03-02 1983-09-09 ダンハム・ブツシユ・インコ−ポレ−テツド Helical-screw-rotary compressor
JPH0361036B2 (en) * 1982-03-02 1991-09-18 Dunham Bush Inc
JPS59215985A (en) * 1983-05-20 1984-12-05 Ebara Corp Screw compressor
US7722345B2 (en) 2006-06-05 2010-05-25 Denso Corporation Screw compressor

Also Published As

Publication number Publication date
JPS6124555B2 (en) 1986-06-11

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