JPS57183590A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS57183590A
JPS57183590A JP6831881A JP6831881A JPS57183590A JP S57183590 A JPS57183590 A JP S57183590A JP 6831881 A JP6831881 A JP 6831881A JP 6831881 A JP6831881 A JP 6831881A JP S57183590 A JPS57183590 A JP S57183590A
Authority
JP
Japan
Prior art keywords
male rotor
tooth
compression chamber
rotary angle
male
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
JP6831881A
Other languages
Japanese (ja)
Inventor
Masayuki Urashin
Katsumi Matsubara
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 JP6831881A priority Critical patent/JPS57183590A/en
Publication of JPS57183590A publication Critical patent/JPS57183590A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary-Type Compressors (AREA)

Abstract

PURPOSE:To prevent a leak of high pressure gas directly to a suction side, by constituting a suction port so that a suction stroke may be finished within a prescribed range of rotary angle of a male rotor. CONSTITUTION:A male rotor 1 is located at a rotary angle of -30 deg., and a compression chamber 4 is located at a position separated from a suction port 9 by a tooth point 15' of a trailing tooth 15 of the male rotor 1, forming the compression chamber 4, and a tooth point 20' of a tooth 20 of a female rotor 2. The compression chamber 4 appears in a delivery side end face when a tooth point 8' of a leading tooth 8 of the male rotor 1, forming the compression chamber 4, reaches the line 7, connecting the centers 5, 6 of the male and female rotors 1, 2, then the rotary angle of the male rotor 1 is -60 deg.. The suction port is closed before reaching a rotary angle 0 deg. of the male rotor, and a leak amount of high pressure gas directly to the suction side can be decreased.
JP6831881A 1981-05-08 1981-05-08 Screw compressor Pending JPS57183590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6831881A JPS57183590A (en) 1981-05-08 1981-05-08 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6831881A JPS57183590A (en) 1981-05-08 1981-05-08 Screw compressor

Publications (1)

Publication Number Publication Date
JPS57183590A true JPS57183590A (en) 1982-11-11

Family

ID=13370346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6831881A Pending JPS57183590A (en) 1981-05-08 1981-05-08 Screw compressor

Country Status (1)

Country Link
JP (1) JPS57183590A (en)

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