IT1277912B1 - Pompa a vuoto a vite - Google Patents

Pompa a vuoto a vite

Info

Publication number
IT1277912B1
IT1277912B1 IT95RM000571A ITRM950571A IT1277912B1 IT 1277912 B1 IT1277912 B1 IT 1277912B1 IT 95RM000571 A IT95RM000571 A IT 95RM000571A IT RM950571 A ITRM950571 A IT RM950571A IT 1277912 B1 IT1277912 B1 IT 1277912B1
Authority
IT
Italy
Prior art keywords
screw pump
vacuum screw
vacuum
pump
screw
Prior art date
Application number
IT95RM000571A
Other languages
English (en)
Inventor
Kisu Im
Original Assignee
Kowel Precision Co 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 Kowel Precision Co Ltd filed Critical Kowel Precision Co Ltd
Publication of ITRM950571A0 publication Critical patent/ITRM950571A0/it
Publication of ITRM950571A1 publication Critical patent/ITRM950571A1/it
Application granted granted Critical
Publication of IT1277912B1 publication Critical patent/IT1277912B1/it

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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • 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)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
IT95RM000571A 1994-08-22 1995-08-22 Pompa a vuoto a vite IT1277912B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940020662A KR0133154B1 (ko) 1994-08-22 1994-08-22 무단 압축형 스크류식 진공펌프

Publications (3)

Publication Number Publication Date
ITRM950571A0 ITRM950571A0 (it) 1995-08-22
ITRM950571A1 ITRM950571A1 (it) 1997-02-22
IT1277912B1 true IT1277912B1 (it) 1997-11-12

Family

ID=19390838

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95RM000571A IT1277912B1 (it) 1994-08-22 1995-08-22 Pompa a vuoto a vite

Country Status (7)

Country Link
US (1) US5667370A (it)
JP (1) JPH0874765A (it)
KR (1) KR0133154B1 (it)
DE (1) DE19530662A1 (it)
FR (1) FR2723766B1 (it)
GB (1) GB2292589B (it)
IT (1) IT1277912B1 (it)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19728434C2 (de) * 1997-07-03 1999-07-29 Busch Sa Atel Schraubenverdichter für kompressible Medien
DE19748385A1 (de) * 1997-11-03 1999-05-06 Peter Frieden Trockenlaufender Schraubenverdichter oder Vakuumpumpe
DE19800825A1 (de) * 1998-01-02 1999-07-08 Schacht Friedrich Trockenverdichtende Schraubenspindelpumpe
JPH11270484A (ja) 1998-03-24 1999-10-05 Taiko Kikai Industries Co Ltd スクリューロータ型ウエット真空ポンプ
JP3831110B2 (ja) 1998-03-25 2006-10-11 大晃機械工業株式会社 真空ポンプのスクリューロータ
ATE266800T1 (de) 1998-10-23 2004-05-15 Busch Sa Atel Zwillings-förderschraubenrotoren
RU2150027C1 (ru) * 1998-12-09 2000-05-27 Родионов Александр Хайрулович Способ изменения объема рабочих камер в объемных машинах
JP3086217B1 (ja) 1999-05-07 2000-09-11 財団法人工業技術研究院 デュアルスクリュー回転子装置
JP4043144B2 (ja) 1999-06-08 2008-02-06 三菱重工業株式会社 スクロール圧縮機
DE19941787B4 (de) 1999-09-02 2011-06-16 Leybold Vakuum Gmbh Schraubenvakuumpumpe mit Schraubengängen mit sich verändernder Steigung
GB9930556D0 (en) * 1999-12-23 2000-02-16 Boc Group Plc Improvements in vacuum pumps
US6394777B2 (en) 2000-01-07 2002-05-28 The Nash Engineering Company Cooling gas in a rotary screw type pump
TW463883U (en) 2000-02-02 2001-11-11 Ind Tech Res Inst Dual-spiral rotor mechanism using pressure difference to automatically adjust gap
TW515480U (en) * 2000-05-12 2002-12-21 Ind Tech Res Inst Non-symmetrical dual spiral rotors apparatus
US6508639B2 (en) 2000-05-26 2003-01-21 Industrial Technology Research Institute Combination double screw rotor assembly
TW420255U (en) 2000-05-26 2001-01-21 Ind Tech Res Inst Composite double helical rotor device
CH694339A9 (de) * 2000-07-25 2005-03-15 Busch Sa Atel Zwillingsschraubenrotoren und solche enthaltende Ve rdraengermaschinen.
DE10102341A1 (de) * 2001-01-19 2002-08-08 Ralf Steffens Profilkontur einer Schraubenspindelpumpe
KR100408153B1 (ko) 2001-08-14 2003-12-01 주식회사 우성진공 드라이 진공펌프
JP3673743B2 (ja) * 2001-09-27 2005-07-20 大晃機械工業株式会社 スクリュー式真空ポンプ
JP3673744B2 (ja) * 2001-09-27 2005-07-20 大晃機械工業株式会社 真空ポンプ
JP2004263629A (ja) * 2003-03-03 2004-09-24 Tadahiro Omi スクリュー真空ポンプ
TW200607926A (en) * 2004-05-24 2006-03-01 Nabtesco Corp Screw rotor and screw type fluid machine
WO2006087038A1 (fr) * 2005-02-16 2006-08-24 Ateliers Busch Sa Machine rotative volumétriques avec rotors à profils asymétriques
DE102005022470B4 (de) * 2005-05-14 2015-04-02 Pfeiffer Vacuum Gmbh Rotorpaar für Schraubenverdichter
TWI438342B (zh) * 2006-07-28 2014-05-21 Lot Vacuum Co Ltd 具有魯式與螺旋轉子之複合型乾式真空幫浦
JP4779868B2 (ja) * 2006-08-11 2011-09-28 株式会社豊田自動織機 スクリューポンプ
KR100976112B1 (ko) * 2006-09-05 2010-08-16 가부시키가이샤 도요다 지도숏키 스크루 펌프 및 스크루 로터
US8764424B2 (en) 2010-05-17 2014-07-01 Tuthill Corporation Screw pump with field refurbishment provisions
US20120119510A1 (en) * 2010-07-14 2012-05-17 Brian Von Herzen Pneumatic gearbox with variable speed transmission and associated systems and methods
CN102022334B (zh) * 2010-12-24 2013-08-07 上海戈里流体机械有限公司 一种螺杆真空泵转子型线
CN103748323B (zh) 2011-06-28 2016-06-29 布莱特能源存储科技有限责任公司 带分开的燃烧器的发动机、以及相关联的系统和方法
KR101074749B1 (ko) * 2011-08-23 2011-10-18 (주)에어플러스 오일 프리 공기압축기
KR101351253B1 (ko) * 2012-03-26 2014-01-14 주식회사 동방플랜텍 진공펌프용 다단식 스크류
WO2014001089A1 (de) * 2012-06-28 2014-01-03 Sterling Industry Consult Gmbh Schraubenpumpe
CN102808772B (zh) * 2012-08-14 2014-12-31 东北大学 一种等齿顶宽的单头变螺距螺杆转子
CN102808771B (zh) * 2012-08-14 2015-01-07 东北大学 等齿顶宽的单头变螺距螺杆转子
CN103233894B (zh) * 2013-04-26 2015-11-18 巫修海 严格密封型干式螺杆真空泵螺杆转子型线
CN103195716B (zh) * 2013-05-07 2015-09-02 巫修海 一种新型齿形螺杆型线
CN105201827B (zh) * 2015-10-19 2017-06-06 西安交通大学 一种双螺杆真空泵转子型线
CN105952636B (zh) * 2016-05-05 2017-11-24 扬州大学 自润滑支承的变容积新型双螺杆泵
FR3065040B1 (fr) * 2017-04-07 2019-06-21 Pfeiffer Vacuum Groupe de pompage et utilisation
CN111878397B (zh) * 2020-09-28 2021-02-19 宁波鲍斯能源装备股份有限公司 一种变螺距螺杆的空压机和膨胀机
CN115143107B (zh) * 2022-07-04 2023-04-28 西安交通大学 一种锥形转子及具有锥形转子的干式双螺杆真空泵

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB419338A (en) * 1933-01-03 1934-11-09 British Thomson Houston Co Ltd Improvements in and relating to screw pumps or compressors
LU28825A1 (it) * 1939-02-06 1900-01-01
GB596122A (en) * 1945-07-19 1947-12-29 Robert Munro Improved axial flow pumps and extrusion apparatus
GB705774A (en) * 1951-02-09 1954-03-17 Eugen Haok Rotary pump adapted for use as a pump or motor for the delivery of liquids, plastic masses and the like
US2691482A (en) * 1952-07-17 1954-10-12 Equi Flow Inc Method and apparatus for compressing and expanding gases
US2705922A (en) * 1953-04-06 1955-04-12 Dresser Ind Fluid pump or motor of the rotary screw type
GB890507A (en) * 1958-01-24 1962-02-28 Stothert & Pitt Ltd Screw displacement pump
US3424373A (en) * 1966-10-28 1969-01-28 John W Gardner Variable lead compressor
US3807911A (en) * 1971-08-02 1974-04-30 Davey Compressor Co Multiple lead screw compressor
US4224015A (en) * 1977-01-19 1980-09-23 Oval Engineering Co., Ltd. Positive displacement flow meter with helical-toothed rotors
CH635403A5 (de) * 1978-09-20 1983-03-31 Edouard Klaey Schraubenspindelmaschine.
US4714418A (en) * 1984-04-11 1987-12-22 Hitachi, Ltd. Screw type vacuum pump
GB2165890B (en) * 1984-10-24 1988-08-17 Stothert & Pitt Plc Improvements in pumps
JP3593365B2 (ja) * 1994-08-19 2004-11-24 大亜真空株式会社 ねじれ角可変型歯車

Also Published As

Publication number Publication date
DE19530662A1 (de) 1996-02-29
KR0133154B1 (ko) 1998-04-20
JPH0874765A (ja) 1996-03-19
FR2723766B1 (fr) 2002-04-19
ITRM950571A1 (it) 1997-02-22
GB2292589A (en) 1996-02-28
FR2723766A1 (fr) 1996-02-23
ITRM950571A0 (it) 1995-08-22
GB2292589B (en) 1998-02-18
US5667370A (en) 1997-09-16
GB9515792D0 (en) 1995-10-04

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