EP2390508A3 - Suction opening of a screw compressor - Google Patents

Suction opening of a screw compressor Download PDF

Info

Publication number
EP2390508A3
EP2390508A3 EP11167299.4A EP11167299A EP2390508A3 EP 2390508 A3 EP2390508 A3 EP 2390508A3 EP 11167299 A EP11167299 A EP 11167299A EP 2390508 A3 EP2390508 A3 EP 2390508A3
Authority
EP
European Patent Office
Prior art keywords
male
rotor
female
lobe
line
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
EP11167299.4A
Other languages
German (de)
French (fr)
Other versions
EP2390508B1 (en
EP2390508A2 (en
Inventor
Masanori Ishikawa
Hirotaka Kameya
Riichi Uchida
Seiji Tsuru
Takashi Saito
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 Industrial Equipment Systems Co 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
Publication of EP2390508A2 publication Critical patent/EP2390508A2/en
Publication of EP2390508A3 publication Critical patent/EP2390508A3/en
Application granted granted Critical
Publication of EP2390508B1 publication Critical patent/EP2390508B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/086—Carter
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/101—Geometry of the inlet or outlet of the inlet

Abstract

A screw compressor includes a casing (3) forming a bore (4) for accommodating a male rotor (1) and a female rotor (2) of which lobes mesh with each other, an axial suction port (11) on a suction side of the casing, and a delivery port on a delivery side, the axial suction port configured by a contour line including a line (15) along a male lobe profile and a line (18) along a female lobe profile, and the line (15) along the male lobe profile disposed at a predetermined displacement angle (Δf1) toward a rotational direction of the male rotor from a following side contour line position of a male lobe groove (5) at which position the volume of a working chamber (9) formed by the male lobe groove of the male rotor, a female lobe groove (6) of the female rotor and the bore is maximum.
Figure imgaf001
EP11167299.4A 2010-05-25 2011-05-24 Suction opening of a screw compressor Active EP2390508B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010118883A JP5478362B2 (en) 2010-05-25 2010-05-25 Screw compressor

Publications (3)

Publication Number Publication Date
EP2390508A2 EP2390508A2 (en) 2011-11-30
EP2390508A3 true EP2390508A3 (en) 2014-09-24
EP2390508B1 EP2390508B1 (en) 2018-03-28

Family

ID=44681524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11167299.4A Active EP2390508B1 (en) 2010-05-25 2011-05-24 Suction opening of a screw compressor

Country Status (3)

Country Link
EP (1) EP2390508B1 (en)
JP (1) JP5478362B2 (en)
CN (2) CN103541899B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6619987B2 (en) * 2015-10-26 2019-12-11 株式会社アルバック Screw pump
JP7189749B2 (en) * 2018-12-04 2022-12-14 株式会社日立産機システム screw compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457314A (en) * 1943-08-12 1948-12-28 Jarvis C Marble Rotary screw wheel device
US2481527A (en) * 1944-06-29 1949-09-13 Jarvis C Marble Rotary multiple helical rotor machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951190A (en) * 1982-09-17 1984-03-24 Hitachi Ltd Oil thrower device of oil-free screw compressor
US5269667A (en) * 1993-02-24 1993-12-14 Ingersoll-Rand Company Removabe discharge port plate for a compressor
JPH06288369A (en) 1993-04-06 1994-10-11 Hitachi Ltd Suction port of screw compressor
JPH109164A (en) 1996-06-19 1998-01-13 Hitachi Ltd Screw type fluid machine
DE19724643A1 (en) * 1997-06-11 1998-12-17 Sihi Gmbh & Co Kg Screw compressor and method of operating the same
JP2000337283A (en) * 1999-05-28 2000-12-05 Tochigi Fuji Ind Co Ltd Screw compressor
US8096288B2 (en) * 2008-10-07 2012-01-17 Eaton Corporation High efficiency supercharger outlet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457314A (en) * 1943-08-12 1948-12-28 Jarvis C Marble Rotary screw wheel device
US2481527A (en) * 1944-06-29 1949-09-13 Jarvis C Marble Rotary multiple helical rotor machine

Also Published As

Publication number Publication date
CN103541899B (en) 2016-11-23
EP2390508B1 (en) 2018-03-28
CN102261332B (en) 2015-01-14
JP5478362B2 (en) 2014-04-23
EP2390508A2 (en) 2011-11-30
CN102261332A (en) 2011-11-30
JP2011247115A (en) 2011-12-08
CN103541899A (en) 2014-01-29

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