EP1070848B1 - 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
EP1070848B1
EP1070848B1 EP99114031A EP99114031A EP1070848B1 EP 1070848 B1 EP1070848 B1 EP 1070848B1 EP 99114031 A EP99114031 A EP 99114031A EP 99114031 A EP99114031 A EP 99114031A EP 1070848 B1 EP1070848 B1 EP 1070848B1
Authority
EP
European Patent Office
Prior art keywords
vacuum pump
lead
motors
shafts
outlet end
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.)
Expired - Lifetime
Application number
EP99114031A
Other languages
German (de)
English (en)
Other versions
EP1070848A1 (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 EP99114031A priority Critical patent/EP1070848B1/fr
Priority to ES99114031T priority patent/ES2219956T3/es
Priority to DE59909182T priority patent/DE59909182D1/de
Priority to AT99114031T priority patent/ATE264457T1/de
Priority to DK99114031T priority patent/DK1070848T3/da
Priority to NO20003590A priority patent/NO323484B1/no
Priority to ZA200003568A priority patent/ZA200003568B/xx
Priority to KR1020000041054A priority patent/KR100573752B1/ko
Priority to CA002314124A priority patent/CA2314124C/fr
Priority to SG200003980A priority patent/SG86422A1/en
Priority to JP2000217626A priority patent/JP2001055992A/ja
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
    • 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
    • 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
    • F04C18/082—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 dry-running vacuum pump for compressible media according to the preamble of claim 1.
  • a previously known displacement machine (GB 2030227A) is double- flow with single -profile profiles. This displacement machine is apparently primarily intended as a compressor.
  • 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-threaded.
  • 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.
  • advantageously extends the area with constant slope at least one turn (360 °) at the inlet end.
  • 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.
  • Displacement machines are known in which the rotors are used constant slopes at the inlet end and outlet end have (GB 2 227 057 B, EP 0 183 380 B1). These displacement machines are intended for pumping liquids, which may contain gas inclusions. Because liquids are not compressible to any significant degree, the Gaps between the rotors and the wall of the delivery room be dimensioned so that liquid during compression through the column corresponding to the pressure difference can flow to the inlet side. So it's still a reasonable one Pumping action is at the inlet end and Outlet areas with constant slope provided pump the liquid normally without compression, otherwise none due to the large gap widths required reasonable pumping action could be achieved. Because these pumps are alien and the problem with funding of liquid is completely different from that of compressible media, these pumps are not able to indicate anything to give the displacement machines according to the invention.
  • 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 the 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 to prevent in the event of electronic synchronization failure, 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.
  • Below on the shafts 3 there are two intermeshing gear wheels 7 intended.
  • the motors 6 are 8 using resolvers 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 on 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)
  • Preliminary Treatment Of Fibers (AREA)
  • Lubricants (AREA)
  • Rotary Pumps (AREA)

Claims (6)

  1. Pompe à vide fonctionnant à sec pour fluides compressibles comportant au moins deux arbres (3) avec des rotors (4) qui sont réalisés en tant que corps profilés (4) hélicoïdaux et dont les profilés s'engagent les uns dans les autres à la manière de roues dentées pendant la rotation et tournent les uns par rapport aux autres sans contact, le pas des corps profilés hélicoïdaux diminuant de l'entrée vers la sortie et les pas (S1, S3) à l'extrémité d'entrée et à l'extrémité de sortie des corps profilés (4) hélicoïdaux étant constants, et entre ceux-ci, le pas (S2) diminuant en continu du pas plus grand (S1) à l'extrémité d'entrée vers le pas plus petit (S3) à l'extrémité de sortie.
  2. Pompe à vide selon la revendication 1, caractérisée en ce que les pas (S1, S3) à l'extrémité d'entrée et à l'extrémité de sortie sont constants sur au moins une spire.
  3. Pompe à vide selon la revendication 2, caractérisée en ce que le pas (S3) à l'extrémité de sortie est constant sur au moins deux spires.
  4. Pompe à vide selon les revendications 1 à 3, caractérisée en ce que les arbres (3) sont entraínés chacun par leurs propres moteurs électriques (6), les positions angulaires des arbres (3) étant déterminées au moyen de résolveurs (8) dont les signaux permettent de synchroniser électroniquement les moteurs (6), et les arbres (3) comportant des roues dentées (7) qui s'engagent les unes dans les autres et dont le jeu angulaire est inférieur à celui des corps profilés (4).
  5. Pompe à vide selon les revendications 1 à 4, caractérisée en ce qu'elle comporte une régulation différentielle pour la vitesse de rotation des moteurs (6).
  6. Pompe à vide selon les revendications 1 à 5, caractérisée en ce que les moteurs (6) sont des moteurs à courant triphasé avec rotor magnétique permanent.
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
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.
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
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
CA002314124A CA2314124C (fr) 1999-07-19 2000-07-18 Machine volumetrique pour fluides compressibles
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
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 EP1070848A1 (fr) 2001-01-24
EP1070848B1 true 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)

Families Citing this family (25)

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Publication number Priority date Publication date Assignee Title
CH694339A9 (de) 2000-07-25 2005-03-15 Busch Sa Atel Zwillingsschraubenrotoren und solche enthaltende Ve rdraengermaschinen.
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
WO2005124155A1 (fr) * 2004-06-18 2005-12-29 Tohoku University Pompe à vide à vis
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
US8328542B2 (en) * 2008-12-31 2012-12-11 General Electric Company Positive displacement rotary components having main and gate rotors with axial flow inlets and outlets
RU2448273C2 (ru) * 2009-08-03 2012-04-20 Открытое акционерное общество "УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ" Роторная винтовая машина
KR101138389B1 (ko) * 2009-10-21 2012-04-26 주식회사 코디박 모터 내장형 스크루 로터 타입 진공펌프
KR101142113B1 (ko) * 2009-10-21 2012-05-09 주식회사 코디박 모터 및 로터 회전축 일체형 스크루 로터 진공펌프
KR101150971B1 (ko) * 2009-10-22 2012-06-01 주식회사 코디박 스크루 로터 타입 진공 펌프
DE102010019402A1 (de) * 2010-05-04 2011-11-10 Oerlikon Leybold Vacuum Gmbh Schrauben-Vakuumpumpe
US8764424B2 (en) 2010-05-17 2014-07-01 Tuthill Corporation Screw pump with field refurbishment provisions
CA2872548A1 (fr) * 2012-05-25 2013-11-28 Ateliers Busch Sa Machine volumetrique de type "a vis" amelioree
WO2014001089A1 (fr) * 2012-06-28 2014-01-03 Sterling Industry Consult Gmbh Pompe à vis
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
CN103486023B (zh) * 2013-07-10 2015-10-28 重庆德衡科技有限公司 螺杆泵及螺杆
CN105697373B (zh) * 2014-11-25 2017-08-25 巫修海 一种螺杆真空泵的螺杆
DE202016005209U1 (de) * 2016-08-30 2017-12-01 Leybold Gmbh Schraubenvakuumpumpe
DE102016216279A1 (de) 2016-08-30 2018-03-01 Leybold Gmbh Vakuumpumpen-Schraubenrotor
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
DE202017005336U1 (de) * 2017-10-17 2019-01-21 Leybold Gmbh Schraubenrotor
DE202018000178U1 (de) * 2018-01-12 2019-04-15 Leybold Gmbh Kompressor

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GB2030227A (en) * 1978-09-20 1980-04-02 Klaey E Rotary-piston fluid-machines

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GB2030227A (en) * 1978-09-20 1980-04-02 Klaey E Rotary-piston fluid-machines

Also Published As

Publication number Publication date
AU4870300A (en) 2001-01-25
NO20003590D0 (no) 2000-07-13
DE59909182D1 (de) 2004-05-19
KR20010015358A (ko) 2001-02-26
ATE264457T1 (de) 2004-04-15
NO20003590L (no) 2001-01-22
JP2001055992A (ja) 2001-02-27
EP1070848A1 (fr) 2001-01-24
SG86422A1 (en) 2002-02-19
NO323484B1 (no) 2007-05-21
KR100573752B1 (ko) 2006-04-24
AU775135B2 (en) 2004-07-15
DK1070848T3 (da) 2004-08-09
ZA200003568B (en) 2001-02-07
CA2314124C (fr) 2008-05-27
CA2314124A1 (fr) 2001-01-19
ES2219956T3 (es) 2004-12-01
US6359411B1 (en) 2002-03-19

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