JPS55139992A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS55139992A
JPS55139992A JP4668679A JP4668679A JPS55139992A JP S55139992 A JPS55139992 A JP S55139992A JP 4668679 A JP4668679 A JP 4668679A JP 4668679 A JP4668679 A JP 4668679A JP S55139992 A JPS55139992 A JP S55139992A
Authority
JP
Japan
Prior art keywords
runner
oil
gas
discharge port
specific gravity
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
JP4668679A
Other languages
Japanese (ja)
Inventor
Taku Degawa
Kazuo Kanemoto
Shigeru Sasaki
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 JP4668679A priority Critical patent/JPS55139992A/en
Publication of JPS55139992A publication Critical patent/JPS55139992A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/026—Lubricant separation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary-Type Compressors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: To promote the separation efficiency in a screw compressor by providing a runner using the rotatory power of a rotor and using its centrifugal force to separate oil from gas with a large difference of specific gravities.
CONSTITUTION: The refrigerant gas compressed by the compressing work based on the engaging rotation of both rotors 4 and 5 is mixed with injected oil, and discharged near to a runner 19 in a primary chamber 15 through a discharge port 13. Between mixed currents flowing into both passages 20 and 21 in the runner 19, the one of oil with a larger specific gravity is scattered outward radially from the passage 21 into the primary chamber 15 by the centrifugal force caused by the rotation of the runner 19 as resisting against the current of gas, and dropped to an oil reserving part 15' below to maintain an oil surface. The other of gas with a smaller specific gravity, since the sentrifugal force given by the runner 19 is very small, is issured into a secondary chamber 16 via a radial passage 20 as concentrating to the central part of the runner 19, and discharged into a refrigerant cycle through a discharge port 12.
COPYRIGHT: (C)1980,JPO&Japio
JP4668679A 1979-04-18 1979-04-18 Screw compressor Pending JPS55139992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4668679A JPS55139992A (en) 1979-04-18 1979-04-18 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4668679A JPS55139992A (en) 1979-04-18 1979-04-18 Screw compressor

Publications (1)

Publication Number Publication Date
JPS55139992A true JPS55139992A (en) 1980-11-01

Family

ID=12754252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4668679A Pending JPS55139992A (en) 1979-04-18 1979-04-18 Screw compressor

Country Status (1)

Country Link
JP (1) JPS55139992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220188U (en) * 1985-07-19 1987-02-06
CN111279080A (en) * 2017-11-09 2020-06-12 株式会社神户制钢所 Liquid-cooled screw compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220188U (en) * 1985-07-19 1987-02-06
JPH0353033Y2 (en) * 1985-07-19 1991-11-19
CN111279080A (en) * 2017-11-09 2020-06-12 株式会社神户制钢所 Liquid-cooled screw compressor
CN111279080B (en) * 2017-11-09 2023-02-10 神钢压缩机株式会社 Liquid-cooled screw compressor

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