EP1075601A1 - Pompe a vide - Google Patents

Pompe a vide

Info

Publication number
EP1075601A1
EP1075601A1 EP99923485A EP99923485A EP1075601A1 EP 1075601 A1 EP1075601 A1 EP 1075601A1 EP 99923485 A EP99923485 A EP 99923485A EP 99923485 A EP99923485 A EP 99923485A EP 1075601 A1 EP1075601 A1 EP 1075601A1
Authority
EP
European Patent Office
Prior art keywords
rotors
pump chamber
pump
pump according
pressure
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
EP99923485A
Other languages
German (de)
English (en)
Other versions
EP1075601B1 (fr
Inventor
Reinhard Garczorz
Fritz-Martin Scholz
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.)
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and Co KG
Original Assignee
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and Co KG
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 Rietschle Werner GmbH and Co KG, Werner Rietschle GmbH and Co KG filed Critical Rietschle Werner GmbH and Co KG
Publication of EP1075601A1 publication Critical patent/EP1075601A1/fr
Application granted granted Critical
Publication of EP1075601B1 publication Critical patent/EP1075601B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis 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
    • 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
    • F04C29/122—Arrangements for supercharging the working space
    • 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
    • F04C18/123—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 radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth

Definitions

  • the invention relates to a pump for the simultaneous generation of pressure and negative pressure.
  • Pumps of this type are advantageous if an industrial process requires compressed air and negative pressure at the same time, since the pump only requires one drive.
  • a separate charging connection which is connected to the atmosphere in order to ensure the volume flow for the compressed air. Accordingly, several separate cells must be formed in the pump chamber. In the prior art, this has only been achieved with rotary slide systems. However, rotary vane are subject to wear and can only be operated lubricant-free if special materials are used.
  • two at least three-bladed rotors rotate in opposite directions about parallel, mutually offset axes in the pump chamber and mesh without contact in order to form cells which are separate from one another with the peripheral wall of the pump chamber.
  • the rotors in the pump chamber can be used to separate the cells required for the simultaneous generation of compressed air and vacuum. Since the rotors are contactless with each other and also with the peripheral wall of the
  • the pump according to the invention is particularly suitable for use in the paper processing industry, especially in applications which do not require separate provision or adjustment of compressed air and vacuum.
  • Compressed air is e.g. needed to blow on a stack of paper to support sheet separation.
  • the pulsating generation of compressed air by the pump according to the invention proves to be expedient here, since the paper edges can be separated more easily by compressed air which occurs intermittently. Vacuum is required in such applications to suck up the top sheet of paper.
  • the rotors with the pump chamber form a suction cell which is connected to the suction connection and increases their volume due to the rotation of the rotors, and a pressure cell which reduces their volume when the rotors rotate and is connected to the pressure connection.
  • This pressure cell is formed from two charging cells which are initially separated from one another in the course of the rotation of the rotors, each of which has an assigned charging connection and are combined with one another to form the pressure cell during the further rotation of the rotors.
  • the charging cells are shifted essentially isobar and isochoric in the pump chamber, i.e. the air in the charging cells experiences essentially no change in pressure and no volume when the charging cells are displaced.
  • FIG. 1 shows a longitudinal section of the pump according to the invention
  • Figure 2 is a view along line II-II in Figure 1;
  • Figure 3 is a view along line III-III in Figure 1;
  • Figures 4a to 4h are schematic views of different rotor positions to explain the mode of operation. - 3 -
  • the single-stage pump for the simultaneous generation of pressure and negative pressure has a housing which consists of a supporting central part 10, a housing cover 12 placed on one side of the central part 10, a housing ring 14 attached to the other side of the central part 10 and one on the housing ring
  • a pump chamber 18 is formed between the middle part 10, the housing ring 14 and the cover plate 16.
  • two shafts 20, 22 are mounted parallel to one another and offset from one another in ball bearings.
  • a pinion 24, 26 is seated on each shaft 20, 22. The pinions 24, 26 are in meshing engagement with one another, so that the shafts 20, 22 rotate in opposite directions synchronously with one another.
  • the lower shaft 22 is led out of the housing cover 12.
  • Two rotors 30, 32 are arranged on the free ends of the shafts 20, 22 projecting into the pump chamber 14. Since the load application formed by the rotors 30, 32 is not between, but outside of the bearings, there is a flying shaft bearing. Each of the rotors 30, 32 is adjustably attached to the associated shaft 20 and 22, respectively. As can be seen from Figure 2, each rotor 30, 32 has three blades 30a and 32a.
  • the pump chamber 18 has a side view in the form of two intersecting circles, which are joined together in the form of an "8".
  • the blades 30a of the rotor 30 have a shape that is different from the shape of the blades 32a of the rotor 32.
  • the geometry of the vanes 30a, 32a and the pump chamber 18 is determined in such a way that when the rotors 30, 32 rotate, a plurality of separate cells is formed, as explained in more detail below with reference to FIGS. 4a to 4h, in that the vanes 30a, 32a slide without contact with a sealing gap of a fraction of 1 mm one above the other and along the outer circumference of the pump chamber 18.
  • the cover plate 16 is provided with a series of recesses, which are closed off from the outside by an attached closure plate 36.
  • Two pipe sockets 42, 44 are screwed into the closure plate 36.
  • the upper pipe socket 42 forms the suction connection and is connected to a recess 50 of the cover plate 16.
  • the lower Pipe socket 44 forms the pressure connection and is connected to a recess 52 in the cover plate 16.
  • Two further cutouts 54a, 54b in the cover plate 16 are open to the outside and form charging connections.
  • FIG. 4a shows the rotors 30, 32 in a rotational position in which their wings 30a, 32a form a closed, common cell 60, which is only connected to the recess 50, with the wall of the pump chamber 18. As the rotors 30, 32 continue to rotate, this cell 60 increases its volume, as can be seen in FIG. 4b.
  • This cell 60 is therefore a suction cell.
  • FIG. 4c shows two cells 62a, 62b which are separate from one another and which arise immediately after the state shown in FIG. 4b in that the cell 60 has been separated into two sub-cells.
  • the cell 62a assigned to the rotor 30 already borders the recess 54a, and the cell 62b assigned to the rotor 32 approaches the recess 54b.
  • the cells 62a, 62b are connected to the recesses 54a and 54b leading to the atmosphere and are filled with air and charged to ambient pressure, so that the air mass flow is increased.
  • the cells 62a, 62b are thus charging cells.
  • the cells 62a, 62b are moved isobarically and isochorously until, as in FIG. 4f shown, combine with one another to form a pressure cell 64.
  • the pressure cell 64 reduces its volume. The air compressed in the pressure cell 64 is pushed out via the cutout 52 to the pipe socket 44, as illustrated in FIGS. 4g and 4h.
  • the pump chamber 18 is free of any lubricant, since the rotors 30, 32 operate without contact. On the drive side, the pump chamber 18 is sealed by seals on the shafts 20, 22.
  • the housing can be equipped with cooling fins, and cooling air is guided from the cover plate 16 through the housing ring 14, the middle part 10 and the housing cover 12 by a cooling fan arranged on the side of the housing cover 12.
  • a resonance damper which is matched to the operating frequency of the pump, is used to dampen the operating noise. Due to the three-wing design of the rotors, this frequency is three times the speed of the shafts 20, 22. The increased operating frequency makes it easier to accommodate the resonance damper, since its length is reduced accordingly.
  • the described flying storage of the rotors is up to one
  • Pumps with a larger volume flow are preferably designed with rotors mounted on both sides. In this case, connections are left in both side plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention vise à produire de la pression et du vide avec une pompe à un étage. Ladite pompe comprend une chambre (18) formée dans un carter, qui est munie d'un raccord d'aspiration, d'un raccord de pression et d'un raccord de charge. Il est prévu dans la chambre de la pompe (18) deux rotors (30, 32) ayant au moins trois ailettes, qui tournent en sens contraire autour d'axes parallèles en décalage mutuel et s'engrènent sans contact, et forment des cellules (60, 62a, 62b, 64) séparées les unes des autres, avec la paroi périphérique de la chambre de la pompe (18).
EP99923485A 1998-04-30 1999-04-28 Pompe a vide Expired - Lifetime EP1075601B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19819538 1998-04-30
DE19819538A DE19819538C2 (de) 1998-04-30 1998-04-30 Druck-Saug-Pumpe
PCT/EP1999/002882 WO1999057439A1 (fr) 1998-04-30 1999-04-28 Pompe a vide

Publications (2)

Publication Number Publication Date
EP1075601A1 true EP1075601A1 (fr) 2001-02-14
EP1075601B1 EP1075601B1 (fr) 2002-09-18

Family

ID=7866414

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99948559A Expired - Lifetime EP1076760B1 (fr) 1998-04-30 1999-04-28 Machine a pistons rotatifs comportant des rotors a trois ailettes
EP99923485A Expired - Lifetime EP1075601B1 (fr) 1998-04-30 1999-04-28 Pompe a vide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99948559A Expired - Lifetime EP1076760B1 (fr) 1998-04-30 1999-04-28 Machine a pistons rotatifs comportant des rotors a trois ailettes

Country Status (7)

Country Link
US (2) US6439865B1 (fr)
EP (2) EP1076760B1 (fr)
JP (2) JP2002513887A (fr)
KR (2) KR100608527B1 (fr)
CN (2) CN1128935C (fr)
DE (3) DE19819538C2 (fr)
WO (2) WO1999057439A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20216504U1 (de) * 2002-10-25 2003-03-06 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Verdrängermaschine mit gegensinnig laufenden Rotoren
FR2859000B1 (fr) * 2003-08-20 2005-09-30 Renault Sa Dent d'engrenage et pompe a engrenages exterieurs
DE102004009639A1 (de) * 2004-02-27 2005-09-15 Rietschle Thomas Gmbh + Co. Kg Drehzahnverdichter
GB0410491D0 (en) * 2004-05-11 2004-06-16 Epicam Ltd Rotary device
PL1640613T3 (pl) * 2004-09-17 2007-04-30 Aerzener Maschf Gmbh Sprężarka z obrotowym tłokiem i sposób eksploatacji sprężarki z obrotowym tłokiem
TW200848617A (en) * 2007-06-08 2008-12-16 Jaguar Prec Industry Co Ltd Motor direct drive air pump, related applications and manufacturing methods thereof
JP5725660B2 (ja) * 2011-09-30 2015-05-27 アネスト岩田株式会社 クローポンプ
EP2674570A1 (fr) * 2012-06-14 2013-12-18 Bobby Boucher Charnière avec déverrouillage automatique mécanique
CN103775341B (zh) * 2012-10-15 2016-05-18 良峰塑胶机械股份有限公司 两外形相同的爪式转子对装置
BR112015013258B1 (pt) 2013-02-08 2021-05-11 Halliburton Energy Services, Inc componente de fundo do poço e método de configuração de um conjunto de luva de produção no interior de um poço
DE102013112704B4 (de) * 2013-11-18 2022-01-13 Pfeiffer Vacuum Gmbh Gehäuse für eine Wälzkolbenpumpe
US9605739B2 (en) * 2014-04-11 2017-03-28 Gpouer Co., Ltd. Power transmission system
JP6340556B2 (ja) * 2015-02-12 2018-06-13 オリオン機械株式会社 二軸回転ポンプ
JP6221140B2 (ja) * 2015-02-12 2017-11-01 オリオン機械株式会社 二軸回転ポンプ
JP6340557B2 (ja) * 2015-02-12 2018-06-13 オリオン機械株式会社 二軸回転ポンプ
RU2611117C2 (ru) * 2015-04-01 2017-02-21 Евгений Михайлович Пузырёв Роторная машина
DE102018203992A1 (de) 2018-03-15 2019-09-19 Gardner Denver Schopfheim Gmbh Drehkolbenmaschine
CN109630411B (zh) * 2018-12-06 2021-06-11 莱州市增峰石业有限公司 一种可变压缩比的增压器及应用和发动机调控技术
JP6749714B1 (ja) * 2019-10-28 2020-09-02 オリオン機械株式会社 クローポンプ
JP7109788B2 (ja) * 2019-10-28 2022-08-01 オリオン機械株式会社 回転ポンプ
JP6845596B1 (ja) * 2020-06-24 2021-03-17 オリオン機械株式会社 クローポンプ
CN116517826B (zh) * 2023-04-25 2024-03-22 北京通嘉宏瑞科技有限公司 一种转子组件及泵体结构

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Also Published As

Publication number Publication date
JP2002513880A (ja) 2002-05-14
CN1299444A (zh) 2001-06-13
DE19819538A1 (de) 1999-11-11
WO1999057439A1 (fr) 1999-11-11
KR100608527B1 (ko) 2006-08-09
EP1076760B1 (fr) 2003-07-02
DE59906193D1 (de) 2003-08-07
CN1105820C (zh) 2003-04-16
WO1999057419A1 (fr) 1999-11-11
KR20010043094A (ko) 2001-05-25
JP2002513887A (ja) 2002-05-14
US6364642B1 (en) 2002-04-02
DE59902761D1 (de) 2002-10-24
US6439865B1 (en) 2002-08-27
DE19819538C2 (de) 2000-02-17
EP1076760A1 (fr) 2001-02-21
EP1075601B1 (fr) 2002-09-18
CN1128935C (zh) 2003-11-26
KR100556077B1 (ko) 2006-03-07
KR20010043093A (ko) 2001-05-25
CN1299434A (zh) 2001-06-13

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