ITRM950571A0 - Pompa a vuoto a vite - Google Patents

Pompa a vuoto a vite

Info

Publication number
ITRM950571A0
ITRM950571A0 ITRM950571A ITRM950571A ITRM950571A0 IT RM950571 A0 ITRM950571 A0 IT RM950571A0 IT RM950571 A ITRM950571 A IT RM950571A IT RM950571 A ITRM950571 A IT RM950571A IT RM950571 A0 ITRM950571 A0 IT RM950571A0
Authority
IT
Italy
Prior art keywords
vacuum pump
screw vacuum
screw
pump
vacuum
Prior art date
Application number
ITRM950571A
Other languages
English (en)
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 filed Critical
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 true ITRM950571A0 (it) 1995-08-22
ITRM950571A1 ITRM950571A1 (it) 1997-02-22
IT1277912B1 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 (45)

* 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
USD456094S1 (en) 2001-03-14 2002-04-23 Think Tek, Inc. Utility lighter device
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
KR20070027558A (ko) * 2004-05-24 2007-03-09 나부테스코 가부시키가이샤 스크류 로터 및 스크류식 유체 기계
DE602005010912D1 (de) * 2005-02-16 2008-12-18 Busch Sa Atel Volumetrische rotationsmaschine mit asymmetrische profile aufweisenden rotoren
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
JP4893630B2 (ja) * 2006-09-05 2012-03-07 株式会社豊田自動織機 スクリュポンプ及びスクリュロータ
US8764424B2 (en) 2010-05-17 2014-07-01 Tuthill Corporation Screw pump with field refurbishment provisions
WO2012009584A1 (en) * 2010-07-14 2012-01-19 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
WO2013003654A2 (en) 2011-06-28 2013-01-03 Bright Energy Storage Technologies, Llp Semi-isothermal compression engines with separate combustors and expanders, and associated system and methods
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
KR102024218B1 (ko) * 2012-06-28 2019-09-23 스털링 인더스트리 컨설트 게엠베하 스크류 펌프
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
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
CN104776027B (zh) * 2013-04-26 2016-10-26 巫修海 严格密封型干式螺杆真空泵螺杆转子
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
US2563396A (en) * 1939-02-06 1951-08-07 Method and apparatus fob manufac
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
ITRM950571A1 (it) 1997-02-22
KR0133154B1 (ko) 1998-04-20
DE19530662A1 (de) 1996-02-29
GB9515792D0 (en) 1995-10-04
US5667370A (en) 1997-09-16
GB2292589A (en) 1996-02-28
IT1277912B1 (it) 1997-11-12
FR2723766B1 (fr) 2002-04-19
GB2292589B (en) 1998-02-18
FR2723766A1 (fr) 1996-02-23
JPH0874765A (ja) 1996-03-19

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Legal Events

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