EP2188530A1 - Pompe à vide ou compresseur à pistons rotatifs multi-étages - Google Patents

Pompe à vide ou compresseur à pistons rotatifs multi-étages

Info

Publication number
EP2188530A1
EP2188530A1 EP08785361A EP08785361A EP2188530A1 EP 2188530 A1 EP2188530 A1 EP 2188530A1 EP 08785361 A EP08785361 A EP 08785361A EP 08785361 A EP08785361 A EP 08785361A EP 2188530 A1 EP2188530 A1 EP 2188530A1
Authority
EP
European Patent Office
Prior art keywords
vacuum pump
discs
compressor according
suction
rotors
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.)
Withdrawn
Application number
EP08785361A
Other languages
German (de)
English (en)
Inventor
Uwe Friedrichsen
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.)
Busch Produktions GmbH
Original Assignee
Busch Produktions 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 Busch Produktions GmbH filed Critical Busch Produktions GmbH
Publication of EP2188530A1 publication Critical patent/EP2188530A1/fr
Withdrawn legal-status Critical Current

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
    • F04C18/12—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
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle

Definitions

  • the invention relates to a multi-stage rotary piston vacuum pump or compressor according to the preamble of claim 1.
  • 0 are identical in principle in the cross-section, but achieve by varying the outer diameter and the thickness of the discs each desired compression or relaxation of the working gas.
  • the lateral surfaces and core surfaces of the individual rotor disks each have sector angles of 180 °.
  • the compression and expansion of the working gas is achieved in that the discs are conical at its periphery and / or narrow in width against the pressure side and are also angularly offset from each other.
  • the lateral surfaces and core surfaces of the individual rotor disks each have
  • the invention is therefore the object of the multi-stage rotary piston vacuum pump or compressor of the generic type to eliminate the disadvantages described in such a way that the costly production of Screw geometries or multi-stage claw vacuum pump is bypassed and yet an equal final vacuum, ie far below 1 mbar abs. can be achieved.
  • the invention is based on the essential idea that in each case at least
  • Partial discs of each rotor a catchy screw gradation and by cycloidal formation of the connecting surfaces between lateral surface and
  • Control opening and the pressure side has a trained for controlling the gas compression control opening.
  • the invention can be applied to dry-running rotary lobe vacuum pumps or compressors mounted both on the fly and on both sides of the working space, in which the rotors are synchronized in a ratio of 1: 1, for example mechanically by a gear or electronically with a drive motor per IO rotor shaft, inevitably and Non-contact are arranged rotatably against each other.
  • individual partial disks of the rotors embodied in the form of rotary pistons are combined according to the invention so that in each case at least two Dividing discs of each rotary piston from a single disc, ie, made of a single workpiece, in particular by simple turning and milling, are produced from each of the two end faces. Due to this production of the individual part discs of the rotary piston is not only the processing of the pressure side thin
  • part discs only allows, but it is also the seal between the part discs and the torque transmission itself simplified.
  • the total number of part discs of the rotary piston can be kept low, among other things, that both the suction side and the pressure side to the working chambers a specially designed control port is present. This is
  • each rotor consists of at least one three-stage rotary piston whose three partial disks are integrally formed, i. are made of a single workpiece.
  • suction-side and / or pressure-side control opening it is within the scope of the invention to adapt the size and shape of the suction-side and / or pressure-side control opening to selected technical parameters, such as gas filling, gas compression, difference between the sector angles of the mantle and core surfaces of the respectively intermeshing part disks, etc.
  • suction-side control opening has a radial outer sealing edge.
  • the design can be made such that the thickness and / or the outer diameter of the partial disks of each rotor decreases from the suction side to the pressure side.
  • the balancing of the rotors in addition to a coordinated mass distribution in the design of the rotary piston can be achieved according to the invention by removing corresponding material, in particular on the suction-side end face of the dividing disks. This can be. can be achieved by forming pockets in the 5 priority suction side thicker individual dividing discs of the rotary piston.
  • Fig. 1 shows schematically in section a cantilevered double-stage rotary piston vacuum pump with a total of three double discs
  • Fig. 2 shows a section through the housing in front of the rotors according to line M-II with
  • FIG. 3 shows a section through the rotors according to line Ill-Ill with a view to the pressure side of the rotors from the transmission side;
  • FIG. 4 is a plan view corresponding to FIG. 2 of the suction-side partial disks of the rotors meshing with each other, FIG.
  • FIG. 5 shows a modified embodiment of the part discs of the rotors with a sector angle between the shell or core surfaces of 325 ° or 35 ° in plan view
  • Fig. 12 in side view.
  • the conveying medium is laterally separated from each of one of the alternately formed suction nozzles via a suction nozzle not shown in more detail and via a suction-side control opening 2 arranged in a housing 1
  • the respective three double disks each form a rotor 6 or 7 in the form of a multi-stage rotary piston.
  • These are mounted on parallel shafts 5 and 8, which are synchronized in opposite directions in the ratio 1: 1 be, by a drive motor not shown on the led out of the housing 1 lower shaft 8 of FIG. 1st
  • FIG. 2 in this case the suction side of the rotors 6, 7 can be seen, 5 wherein the suction-side control port 2 is adapted in size and shape to the desired gas filling.
  • FIG. 3 shows the pressure side of the rotors 6, 7 from the transmission side, the pressure-side control opening 4 also being formed in a suitable manner with regard to size and shape, that is to say the pressure side. H. adapted to the desired recoverable gas compression.
  • the first limit value is that the respective intermeshing part discs of both rotors 6, 7 have the same sector angle at the shell and core surfaces, namely 180 °, as shown in Fig. 4 to 6.
  • the second limit value is that the respective intermeshing part discs of both rotors 6, 7 have the same sector angle at the shell and core surfaces, namely 180 °, as shown in Fig. 4 to 6.
  • the second limit value is that the respective intermeshing part discs of both rotors 6, 7 have the same sector angle at the shell and core surfaces, namely 180 °, as shown in Fig. 4 to 6.
  • 0 limit value consists in a sector angle combination, in which of the respectively intermeshing part discs of both rotors 6, 7, the one part disc the manufacturing and strength technically lowest possible sector angle, namely 35 °, the lateral surface and the corresponding part of disk on the opposite rotor the largest possible Lateral surface, namely over one
  • FIGS. 10 to 12 show an embodiment in which a sector angle combination has been selected (270 ° or 90 °), which lies between the aforementioned limit values.
  • diverging part discs have identical end profiles.
  • a flow channel ie a working chamber over several
  • the corresponding part discs following in the direction of the gas flow are offset at a suitable angle.
  • each two part discs form an item, d. H. are made of a single workpiece. So they form the
  • the sector angles of the partial disks meshing with each other have the greatest possible difference in the lateral surfaces.
  • each intermeshing partial discs do not have identical end profiles.
  • the following in the direction of the gas flow corresponding dividing discs are offset from each other in a suitable i ⁇ angle.
  • FIGS. 10, 11 and 12 is finally the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne une pompe à vide ou un compresseur à pistons rotatifs multi-étages, comprenant au moins deux rotors (6, 7) sous forme de pistons rotatifs, montés à l'intérieur d'un carter (1), solidaires en rotation sur des arbres parallèles (5, 8), tournant en sens opposé, de manière synchronisée, dans un rapport 1:1, chacun de ces pistons comprenant au moins deux disques partiels (12, 13, 14, 15, etc.) mutuellement en prise par paires. L'invention est caractérisée en ce qu'au moins deux disques partiels (12, 13, 14, 15, etc.) de chaque piston rotatif (6, 7) sont configurés comme une pièce, c'est-à-dire sont fabriqués d'une seule pièce, de telle façon que par positionnement des disques partiels individuels de chaque rotor l'un derrière l'autre, une seule graduation hélicoïdale, et une chambre de travail étanche (3.1, 3. 2) fermée en elle-même soient formées par configuration cycloïdale des surfaces de liaison entre les surfaces latérales et les surfaces centrales de chaque disque partiel, ladite chambre de travail présentant une ouverture de commande (2), côté aspiration, pour la commande du remplissage des gaz, et une ouverture de commande (4), côté compression, pour la commande de la compression des gaz.
EP08785361A 2007-08-17 2008-08-05 Pompe à vide ou compresseur à pistons rotatifs multi-étages Withdrawn EP2188530A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007038966.5A DE102007038966B4 (de) 2007-08-17 2007-08-17 Mehrstufige Drehkolbenvakuumpumpe bzw. - verdichter
PCT/EP2008/006436 WO2009024262A1 (fr) 2007-08-17 2008-08-05 Pompe à vide ou compresseur à pistons rotatifs multi-étages

Publications (1)

Publication Number Publication Date
EP2188530A1 true EP2188530A1 (fr) 2010-05-26

Family

ID=39929874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785361A Withdrawn EP2188530A1 (fr) 2007-08-17 2008-08-05 Pompe à vide ou compresseur à pistons rotatifs multi-étages

Country Status (3)

Country Link
EP (1) EP2188530A1 (fr)
DE (1) DE102007038966B4 (fr)
WO (1) WO2009024262A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033672B4 (de) * 2009-07-17 2011-06-01 Wilhelm Talhoff Drehkolben-Brennkraftmaschine
DE202009010390U1 (de) * 2009-07-31 2009-10-08 Busch Produktions Gmbh Vorrichtung zum lastunabhängigen Beaufschlagen eines Diesel-Rußpartikelfilters mit Druckluft
EP2613052B1 (fr) 2012-01-05 2015-09-23 Noble Products International GmbH Compresseur à pistons rotatifs ou pompe à pistons rotatifs
CN114593051A (zh) * 2020-12-04 2022-06-07 中国科学院沈阳科学仪器股份有限公司 一种真空泵轴结构及多级真空泵
DE102022103992A1 (de) 2022-02-21 2023-08-24 ELMA Immobilien- und Vermögensverwaltungsgesellschaft mbH Drehkolbenmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US698539A (en) * 1901-05-28 1902-04-29 Thomas C Mcbride Rotary engine, water-meter, or pump.
AT261792B (de) 1965-06-15 1968-05-10 Paul Wormser & Co Rotationskolbenmaschine
US3865524A (en) * 1972-04-26 1975-02-11 Tommy E Stauth Rotary hydraulic motor
US3844695A (en) * 1972-10-13 1974-10-29 Calspan Corp Rotary compressor
GB1448157A (en) * 1973-04-17 1976-09-02 Abaidullin A I Rotary positive displacement machines
GB1498052A (en) * 1974-03-28 1978-01-18 Fairey Norbon Rotary positive-displacement compressible-fluid machines
US3941521A (en) 1974-08-28 1976-03-02 Calspan Corporation Rotary compressor
CH635403A5 (de) 1978-09-20 1983-03-31 Edouard Klaey Schraubenspindelmaschine.
DE2944714A1 (de) 1979-11-06 1981-05-14 Helmut 1000 Berlin Karl Rotationskolbenmaschine
JPS64383A (en) * 1986-03-29 1989-01-05 Nippon Soken Inc Two-shaft multi-blade fluid machine
GB9222227D0 (en) * 1992-10-22 1992-12-02 Boc Group Plc Improvements in vacuum pumps
RS50951B (sr) * 2001-02-23 2010-08-31 Ateliers Busch Sa. Mašina sa obrtnim klipom za kompresibilni medijum
JP3991918B2 (ja) * 2003-05-19 2007-10-17 株式会社豊田自動織機 ルーツポンプ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009024262A1 *

Also Published As

Publication number Publication date
WO2009024262A1 (fr) 2009-02-26
DE102007038966B4 (de) 2024-05-02
DE102007038966A1 (de) 2009-02-19

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