EP1070848A1 - Machine à déplacement positif pour des fluides compressibles - Google Patents

Machine à déplacement positif pour des fluides compressibles Download PDF

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Publication number
EP1070848A1
EP1070848A1 EP99114031A EP99114031A EP1070848A1 EP 1070848 A1 EP1070848 A1 EP 1070848A1 EP 99114031 A EP99114031 A EP 99114031A EP 99114031 A EP99114031 A EP 99114031A EP 1070848 A1 EP1070848 A1 EP 1070848A1
Authority
EP
European Patent Office
Prior art keywords
slope
displacement machine
motors
machine according
inlet
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
EP99114031A
Other languages
German (de)
English (en)
Other versions
EP1070848B1 (fr
Inventor
Heiner Dr. Kösters
Guido Dr. Keller
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.)
Sterling Fluid Systems Germany GmbH
Sterling Fluid Systems GmbH
Original Assignee
Sterling Fluid Systems Germany GmbH
Sterling Fluid Systems GmbH
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 Sterling Fluid Systems Germany GmbH, Sterling Fluid Systems GmbH filed Critical Sterling Fluid Systems Germany GmbH
Priority to DE59909182T priority Critical patent/DE59909182D1/de
Priority to AT99114031T priority patent/ATE264457T1/de
Priority to DK99114031T priority patent/DK1070848T3/da
Priority to EP99114031A priority patent/EP1070848B1/fr
Priority to ES99114031T priority patent/ES2219956T3/es
Priority to NO20003590A priority patent/NO323484B1/no
Priority to ZA200003568A priority patent/ZA200003568B/xx
Priority to KR1020000041054A priority patent/KR100573752B1/ko
Priority to SG200003980A priority patent/SG86422A1/en
Priority to JP2000217626A priority patent/JP2001055992A/ja
Priority to CA002314124A priority patent/CA2314124C/fr
Priority to US09/619,600 priority patent/US6359411B1/en
Priority to AU48703/00A priority patent/AU775135B2/en
Publication of EP1070848A1 publication Critical patent/EP1070848A1/fr
Application granted granted Critical
Publication of EP1070848B1 publication Critical patent/EP1070848B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B29/00—Other pumps with movable, e.g. rotatable cylinders
    • 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
    • F04C18/084—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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies

Definitions

  • the invention relates to a displacement machine for compressible Media, especially dry-running vacuum pump, with at least two shafts with rotors acting as helical Profile bodies are formed and their profiles during rotation mesh like a gear and run without contact to each other, the slope of the helical profile body decreases from inlet to outlet.
  • the object of the invention is to provide a displacement machine of the type mentioned, which is a cheaper Shows pumping behavior and increases the delivery rate is.
  • the solution according to the invention is that the helical Profile body are double and the Slopes at the inlet end and outlet end of the helical Profile bodies are constant and in between of the larger Slope at the inlet end to the smaller slope at the outlet end the slope decreases continuously.
  • the slope is therefore constant at the inlet end. That’s why original delivery volume the size of the slope on Inlet end corresponds. This funding volume will not reduced that the slope decreases immediately.
  • a constant slope is again provided at the outlet end, which is less than the slope at the inlet end. This will the mentioned problems of backflow are greatly reduced, because over one turn or even several turns in the there is essentially constant pressure. This also makes the Final pressure of the pump reduced. At the same time because of the smaller funding volume reduces the power consumption.
  • the slopes are at the inlet and outlet ends constant over at least one turn.
  • the slope at the outlet end is constant over at least two turns. This gives you not only get better sealing and less backflow, but also better dissipation of the heat of compression. This then arises with a dry-running vacuum pump the heat of compression through the volume reduction and Heat of compression due to the penetration of outside air at the outlet end no longer in the same place and can therefore do better be dissipated.
  • the number of turns over which the slope is constant depends on the desired operating conditions of the pump.
  • a particularly favorable behavior of the displacement machine in particular in the vacuum range is obtained if provided is that the shafts are each driven by their own electric motors be, the angular positions of the shafts with resolvers the motors are determined on the basis of their signals be electronically synchronized, and being the waves Have gears that mesh and their angular play is smaller than that of the profile body.
  • the rotors are not driven by gears, but are completely contact-free thanks to our own electric motors driven, the gears only have the purpose prevent in the event of failure of the electronic synchronization, that the sensitive surfaces of the rotors touch and get damaged. Instead, the Touch gears, which is not a problem, in particular, if they are provided with the appropriate surface.
  • Three-phase motors have proven to be particularly suitable for operation proven with permanent magnetic rotor as drive.
  • Fig. 1 there are one of several Parts of assembled pump housing 1 with bearings 2 two shafts 3 stored on which profile body 4 are attached, which interlock and in the pump chamber 5 through a connection 13 that Suck the medium to be pumped from above and not through the bottom Eject the openings shown.
  • the waves 3 and the profile body 4 are driven by electric motors 6, whereby for each shaft 3 a separate electric motor 6 is provided.
  • the motors 6 are made using resolvers 8 electronically synchronized. In adverse operating conditions, if the electronic synchronization is not sufficient, first touch the gears 7 because they are one have less angular play than the rotors 4. Usually but do not touch the gears 7, so that lubrication of these gears can be dispensed with.
  • rotors according to the invention are shown, in which the slope decreases from the top (inlet end) to the bottom (outlet end).
  • the slope S 1 has a constant value over at least one turn.
  • the range of constant slope S 3 advantageously extends over at least two turns of the rotors 4.
  • the slope S 2 changes continuously from the value of S 1 to the value of S 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Prostheses (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Lubricants (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Rotary Pumps (AREA)
EP99114031A 1999-07-19 1999-07-19 Machine à déplacement positif pour des fluides compressibles Expired - Lifetime EP1070848B1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
DE59909182T DE59909182D1 (de) 1999-07-19 1999-07-19 Verdrängermaschine für kompressible Medien
AT99114031T ATE264457T1 (de) 1999-07-19 1999-07-19 Verdrängermaschine für kompressible medien
DK99114031T DK1070848T3 (da) 1999-07-19 1999-07-19 Fortrængningsmaskine til kompressible medier
EP99114031A EP1070848B1 (fr) 1999-07-19 1999-07-19 Machine à déplacement positif pour des fluides compressibles
ES99114031T ES2219956T3 (es) 1999-07-19 1999-07-19 Maquina volumetrica para medios comprimibles.
NO20003590A NO323484B1 (no) 1999-07-19 2000-07-13 Fortrengningsmaskin for kompressible medier
ZA200003568A ZA200003568B (en) 1999-07-19 2000-07-17 Displacement machine for compressible media.
KR1020000041054A KR100573752B1 (ko) 1999-07-19 2000-07-18 압축 매질용 용적식 기계
SG200003980A SG86422A1 (en) 1999-07-19 2000-07-18 Displacement machine for compressible media
JP2000217626A JP2001055992A (ja) 1999-07-19 2000-07-18 圧縮可能媒体用排出機
CA002314124A CA2314124C (fr) 1999-07-19 2000-07-18 Machine volumetrique pour fluides compressibles
US09/619,600 US6359411B1 (en) 1999-07-19 2000-07-19 Displacement machine for compressible media
AU48703/00A AU775135B2 (en) 1999-07-19 2000-07-19 Displacement machine for compressible media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99114031A EP1070848B1 (fr) 1999-07-19 1999-07-19 Machine à déplacement positif pour des fluides compressibles

Publications (2)

Publication Number Publication Date
EP1070848A1 true EP1070848A1 (fr) 2001-01-24
EP1070848B1 EP1070848B1 (fr) 2004-04-14

Family

ID=8238616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114031A Expired - Lifetime EP1070848B1 (fr) 1999-07-19 1999-07-19 Machine à déplacement positif pour des fluides compressibles

Country Status (13)

Country Link
US (1) US6359411B1 (fr)
EP (1) EP1070848B1 (fr)
JP (1) JP2001055992A (fr)
KR (1) KR100573752B1 (fr)
AT (1) ATE264457T1 (fr)
AU (1) AU775135B2 (fr)
CA (1) CA2314124C (fr)
DE (1) DE59909182D1 (fr)
DK (1) DK1070848T3 (fr)
ES (1) ES2219956T3 (fr)
NO (1) NO323484B1 (fr)
SG (1) SG86422A1 (fr)
ZA (1) ZA200003568B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702558B2 (en) 2000-07-25 2004-03-09 Ateliers Busch Sa Twin screw rotors and displacement machines containing the same
DE102010019402A1 (de) * 2010-05-04 2011-11-10 Oerlikon Leybold Vacuum Gmbh Schrauben-Vakuumpumpe
CN102808771A (zh) * 2012-08-14 2012-12-05 东北大学 等齿顶宽的单头变螺距螺杆转子
CN103486023A (zh) * 2013-07-10 2014-01-01 重庆德衡科技有限公司 螺杆泵及螺杆
WO2014001089A1 (fr) * 2012-06-28 2014-01-03 Sterling Industry Consult Gmbh Pompe à vis
WO2013175019A3 (fr) * 2012-05-25 2014-06-12 Ateliers Busch Sa Machine volumétrique de type "à vis" améliorée
EP2204532A3 (fr) * 2008-12-31 2014-10-08 General Electric Company Turbine à gas à déplacement positif avec des rotors à vis parallèles
DE202016005209U1 (de) * 2016-08-30 2017-12-01 Leybold Gmbh Schraubenvakuumpumpe
DE102016216279A1 (de) 2016-08-30 2018-03-01 Leybold Gmbh Vakuumpumpen-Schraubenrotor
DE202017005336U1 (de) * 2017-10-17 2019-01-21 Leybold Gmbh Schraubenrotor

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004263629A (ja) * 2003-03-03 2004-09-24 Tadahiro Omi スクリュー真空ポンプ
GB0405527D0 (en) * 2004-03-12 2004-04-21 Boc Group Plc Vacuum pump
CN1969126A (zh) * 2004-06-15 2007-05-23 株式会社丰田自动织机 螺旋式泵以及螺旋齿轮
JP4839443B2 (ja) * 2004-06-18 2011-12-21 国立大学法人東北大学 スクリュー真空ポンプ
JP4853168B2 (ja) * 2006-08-10 2012-01-11 株式会社豊田自動織機 スクリューポンプ
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
US20080193316A1 (en) * 2007-02-08 2008-08-14 Kabushiki Kaisha Toyota Jidoshokki Roots pump
RU2448273C2 (ru) * 2009-08-03 2012-04-20 Открытое акционерное общество "УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ" Роторная винтовая машина
KR101142113B1 (ko) * 2009-10-21 2012-05-09 주식회사 코디박 모터 및 로터 회전축 일체형 스크루 로터 진공펌프
KR101138389B1 (ko) * 2009-10-21 2012-04-26 주식회사 코디박 모터 내장형 스크루 로터 타입 진공펌프
KR101150971B1 (ko) * 2009-10-22 2012-06-01 주식회사 코디박 스크루 로터 타입 진공 펌프
US8764424B2 (en) 2010-05-17 2014-07-01 Tuthill Corporation Screw pump with field refurbishment provisions
CN105697373B (zh) * 2014-11-25 2017-08-25 巫修海 一种螺杆真空泵的螺杆
CN106151031A (zh) * 2016-09-30 2016-11-23 北京艾岗科技有限公司 一种无油螺杆空压机
DE202018000178U1 (de) * 2018-01-12 2019-04-15 Leybold Gmbh Kompressor

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CH246525A (de) * 1942-05-21 1947-01-15 Graaf George Alexander V D Vakuumpumpe, welche mehrere ineinandergreifende Förderschrauben besitzt.
FR1500160A (fr) * 1966-07-29 1967-11-03 Perfectionnements aux compresseurs et moteurs rotatifs
GB2165890A (en) * 1984-10-24 1986-04-23 Stothert & Pitt Plc Postive displacement screw pumps
DE19749572A1 (de) * 1997-11-10 1999-05-12 Peter Dipl Ing Frieden Trockenlaufender Schraubenverdichter oder Vakuumpumpe
DE19800825A1 (de) * 1998-01-02 1999-07-08 Schacht Friedrich Trockenverdichtende Schraubenspindelpumpe

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CH635403A5 (de) * 1978-09-20 1983-03-31 Edouard Klaey Schraubenspindelmaschine.
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FR2647853A1 (fr) * 1989-06-05 1990-12-07 Cit Alcatel Pompe primaire seche a deux etages
DE69123898T3 (de) * 1990-08-01 2004-08-05 Matsushita Electric Industrial Co., Ltd., Kadoma Drehanlage für flüssige Medien
US5108275A (en) * 1990-12-17 1992-04-28 Sager William F Rotary pump having helical gear teeth with a small angle of wrap
DE69304102T3 (de) * 1992-01-31 2004-06-03 Matsushita Electric Industrial Co., Ltd., Kadoma Gerät mit mehreren synchron rotierenden Wellen
JP3569924B2 (ja) * 1992-03-19 2004-09-29 松下電器産業株式会社 流体回転装置
US5374173A (en) * 1992-09-04 1994-12-20 Matsushita Electric Industrial Co., Ltd. Fluid rotating apparatus with sealing arrangement
DE4314418A1 (de) * 1993-05-03 1994-11-10 Leybold Ag Reibungsvakuumpumpe mit unterschiedlich gestalteten Pumpenabschnitten
DE4318707A1 (de) * 1993-06-04 1994-12-08 Sihi Gmbh & Co Kg Verdrängermaschine mit elektronischer Motorsynchronisation
JPH08100779A (ja) * 1994-10-04 1996-04-16 Matsushita Electric Ind Co Ltd 真空ポンプ
US5704250A (en) * 1996-04-04 1998-01-06 Western Atlas, Inc. Ball screw drive with dynamically adjustable preload

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH246525A (de) * 1942-05-21 1947-01-15 Graaf George Alexander V D Vakuumpumpe, welche mehrere ineinandergreifende Förderschrauben besitzt.
FR1500160A (fr) * 1966-07-29 1967-11-03 Perfectionnements aux compresseurs et moteurs rotatifs
GB2165890A (en) * 1984-10-24 1986-04-23 Stothert & Pitt Plc Postive displacement screw pumps
DE19749572A1 (de) * 1997-11-10 1999-05-12 Peter Dipl Ing Frieden Trockenlaufender Schraubenverdichter oder Vakuumpumpe
DE19800825A1 (de) * 1998-01-02 1999-07-08 Schacht Friedrich Trockenverdichtende Schraubenspindelpumpe

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702558B2 (en) 2000-07-25 2004-03-09 Ateliers Busch Sa Twin screw rotors and displacement machines containing the same
EP2204532A3 (fr) * 2008-12-31 2014-10-08 General Electric Company Turbine à gas à déplacement positif avec des rotors à vis parallèles
DE102010019402A1 (de) * 2010-05-04 2011-11-10 Oerlikon Leybold Vacuum Gmbh Schrauben-Vakuumpumpe
WO2013175019A3 (fr) * 2012-05-25 2014-06-12 Ateliers Busch Sa Machine volumétrique de type "à vis" améliorée
WO2014001089A1 (fr) * 2012-06-28 2014-01-03 Sterling Industry Consult Gmbh Pompe à vis
CN102808771A (zh) * 2012-08-14 2012-12-05 东北大学 等齿顶宽的单头变螺距螺杆转子
CN103486023A (zh) * 2013-07-10 2014-01-01 重庆德衡科技有限公司 螺杆泵及螺杆
CN103486023B (zh) * 2013-07-10 2015-10-28 重庆德衡科技有限公司 螺杆泵及螺杆
DE202016005209U1 (de) * 2016-08-30 2017-12-01 Leybold Gmbh Schraubenvakuumpumpe
DE102016216279A1 (de) 2016-08-30 2018-03-01 Leybold Gmbh Vakuumpumpen-Schraubenrotor
DE202017005336U1 (de) * 2017-10-17 2019-01-21 Leybold Gmbh Schraubenrotor

Also Published As

Publication number Publication date
NO323484B1 (no) 2007-05-21
ES2219956T3 (es) 2004-12-01
KR100573752B1 (ko) 2006-04-24
CA2314124C (fr) 2008-05-27
ZA200003568B (en) 2001-02-07
NO20003590D0 (no) 2000-07-13
CA2314124A1 (fr) 2001-01-19
US6359411B1 (en) 2002-03-19
DE59909182D1 (de) 2004-05-19
NO20003590L (no) 2001-01-22
EP1070848B1 (fr) 2004-04-14
AU4870300A (en) 2001-01-25
SG86422A1 (en) 2002-02-19
KR20010015358A (ko) 2001-02-26
ATE264457T1 (de) 2004-04-15
AU775135B2 (en) 2004-07-15
DK1070848T3 (da) 2004-08-09
JP2001055992A (ja) 2001-02-27

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