JPS57140589A - Enclosed screw compressor - Google Patents

Enclosed screw compressor

Info

Publication number
JPS57140589A
JPS57140589A JP2548781A JP2548781A JPS57140589A JP S57140589 A JPS57140589 A JP S57140589A JP 2548781 A JP2548781 A JP 2548781A JP 2548781 A JP2548781 A JP 2548781A JP S57140589 A JPS57140589 A JP S57140589A
Authority
JP
Japan
Prior art keywords
outside diameter
motor
casing
rotor
rotors
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
JP2548781A
Other languages
Japanese (ja)
Inventor
Kimio Nagata
Shigekazu Nozawa
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 JP2548781A priority Critical patent/JPS57140589A/en
Publication of JPS57140589A publication Critical patent/JPS57140589A/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 minimize the outside diameter of the casing of a compressor and make it compact, by prescribing the outside diameter of a motor and a male and a female rotors, which are provided in the same casing, and the distance between the axes of the rotors. CONSTITUTION:The motor 2, a male rotor 3 and a female rotor 4 of an enclosed screw compressor are provided in its casing 1 so that the male rotor is driven coaxially with the motor. The outside diameter D of the motor 2, the outside diameter (d) of the male rotor 3 and the distance P between the axes of the rotors 3, 4 are related to each other as 0.85<(P+d/2)/(D/2)<1.5. If the ratio were less than 0.85, the outside diameter of the motor 2 would be predominant and the opposite side of the female rotor 4 would not efficiently be used. If the ratio were more than 1.5, the outside diameter of the female rotor 4 would be too large. Under said relationship, the outside diameter of the casing 1 is minimized so that the whole compressor is compact.
JP2548781A 1981-02-25 1981-02-25 Enclosed screw compressor Pending JPS57140589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2548781A JPS57140589A (en) 1981-02-25 1981-02-25 Enclosed screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2548781A JPS57140589A (en) 1981-02-25 1981-02-25 Enclosed screw compressor

Publications (1)

Publication Number Publication Date
JPS57140589A true JPS57140589A (en) 1982-08-31

Family

ID=12167405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2548781A Pending JPS57140589A (en) 1981-02-25 1981-02-25 Enclosed screw compressor

Country Status (1)

Country Link
JP (1) JPS57140589A (en)

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