JPS57159991A - Rotor for rotary compressor - Google Patents

Rotor for rotary compressor

Info

Publication number
JPS57159991A
JPS57159991A JP4554481A JP4554481A JPS57159991A JP S57159991 A JPS57159991 A JP S57159991A JP 4554481 A JP4554481 A JP 4554481A JP 4554481 A JP4554481 A JP 4554481A JP S57159991 A JPS57159991 A JP S57159991A
Authority
JP
Japan
Prior art keywords
discharge ports
rotary compressor
rotor
high pressure
suction stroke
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
JP4554481A
Other languages
Japanese (ja)
Inventor
Masahiko Sugiyama
Nobuo Abe
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 JP4554481A priority Critical patent/JPS57159991A/en
Publication of JPS57159991A publication Critical patent/JPS57159991A/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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3566—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along more than line or surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE:To make it possible to enhance the volumetric efficiency of a rotary compressor by covering discharge ports with truly circular parts of a rotor during a suction stroke so that residual high pressure gas in the discharge ports is prevented from reexpanding at a low pressur side. CONSTITUTION:There is no possibility of high pressure gas 10 flowing backward into a chamber S and then reexpand at a low pressure side of a rotary compressor since discharge ports 7 are covered with truly circular parts of a rotor 5a upon the completion of suction stroke. The pressure in the inside of the housing is only slightly increased even if high pressure gas in the discharge ports 7 expand, causing no influence to the absolute volume of sucked gas, since the suction stroke is completed and intake ports 6 are also covered with the circular parts of the rotor when the discharge ports 7 are opened to the inside of the housing. Accordingly, no substantial lowering of the volumetric efficiency of the rotary compressor due to the reexpansion of residual gas in the discharge port is appreciated.
JP4554481A 1981-03-30 1981-03-30 Rotor for rotary compressor Pending JPS57159991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4554481A JPS57159991A (en) 1981-03-30 1981-03-30 Rotor for rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4554481A JPS57159991A (en) 1981-03-30 1981-03-30 Rotor for rotary compressor

Publications (1)

Publication Number Publication Date
JPS57159991A true JPS57159991A (en) 1982-10-02

Family

ID=12722301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4554481A Pending JPS57159991A (en) 1981-03-30 1981-03-30 Rotor for rotary compressor

Country Status (1)

Country Link
JP (1) JPS57159991A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258180A (en) * 1986-05-01 1987-11-10 Takatori Seisakusho:Kk Oval type rotary compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258180A (en) * 1986-05-01 1987-11-10 Takatori Seisakusho:Kk Oval type rotary compressor

Similar Documents

Publication Publication Date Title
JPS6412092A (en) Vacuum pump of screw type
JPS57159991A (en) Rotor for rotary compressor
GB1001738A (en) Rotary vacuum pumps
GB993874A (en) Rotary air pump
JPS57206800A (en) Single shaft multi-stage centrifugal compressor
JPS5759091A (en) Screw pump
JPS5620703A (en) Displacement-type rotary machine
ES454676A1 (en) Reciprocating compressors
JPS51123906A (en) Fluid pressure machine
JPS55134785A (en) Rotary compressor
JPS5776290A (en) Scroll compressor
JPS5726294A (en) Method and device for vane extrusion in vaned compressor
JPS5443302A (en) Fluid rotation machine
JPS57102596A (en) Rotary compressor
JPS5768578A (en) Scroll compressor
JPS5514909A (en) Compressor
JPS5650294A (en) Isothermal compressor of multistage roots type
JPS5677582A (en) Air compressor
JPS57140588A (en) Scroll compressor
JPS54122413A (en) Gas injection compressor
JPS56106085A (en) Pump apparatus
JPS56168321A (en) Exhaust device of luminous tube
JPS54132809A (en) Compressor
JPS56143373A (en) Reciprocating air compressor
JPS5557689A (en) Water ringpump of asymmetrical impeller width