EP1749145B1 - Commande du courant de fuite d'intervalle d'une machine a engrenages - Google Patents

Commande du courant de fuite d'intervalle d'une machine a engrenages Download PDF

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Publication number
EP1749145B1
EP1749145B1 EP05756080.7A EP05756080A EP1749145B1 EP 1749145 B1 EP1749145 B1 EP 1749145B1 EP 05756080 A EP05756080 A EP 05756080A EP 1749145 B1 EP1749145 B1 EP 1749145B1
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EP
European Patent Office
Prior art keywords
rotor
rotors
rotary piston
axial
piston machine
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.)
Active
Application number
EP05756080.7A
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German (de)
English (en)
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EP1749145A1 (fr
Inventor
Felix Arnold
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1749145A1 publication Critical patent/EP1749145A1/fr
Application granted granted Critical
Publication of EP1749145B1 publication Critical patent/EP1749145B1/fr
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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
    • F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
    • F01C3/06—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees
    • F01C3/08—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/601—Adjustment
    • 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

Definitions

  • the invention is based on a rotary piston machine, which can operate as a pump, compressor or motor, according to the preamble of the main claim.
  • a known rotary engine DE PS 42 41 320 .
  • EP PS 1 005 604 is also sought by the design of the teeth, a high tightness between the work spaces to obtain the lowest possible leakage currents from a working space to the adjacent working space on the edges with line contact between the interacting teeth of the rotors.
  • the tooth combs of a rotor run linearly on the flanks of a cycloidal development of the tread having other rotor from.
  • a known rotary engine of the generic type ( DE 10 2004 044 297 A1 ) is the drive rotor by a Electric motor driven, whereby there is a major problem avoiding short circuits between the work spaces in the area of the line-shaped contact.
  • the output rotor is loaded to reduce the gap in the area of the line-shaped contact in the direction of the drive rotor.
  • the advantages of the invention are that the rotors are arranged sealingly to each other in order to reduce gap losses. A forming gap flow is suppressed and achieved an additional sealing effect by pressing resulting pressure forces on all sides on the rotors. Again, it is primarily about the prevention of slit flows.
  • the rotary piston engine according to the invention with the characterizing features of the main claim has the advantage that the energy consumption of the rotary piston engine directly corresponds to the actual power output of the same. From a never quite avoidable gap loss of such a machine is given by targeted change in the gap width quantity control, or loss amount control has become.
  • An additional advantage is that, for example in the promotion of fuels or oil, foaming is largely prevented, which may arise, for example, in the control of a return flow channel.
  • the displaceable rotor is arranged coaxially with the cylindrical control chamber.
  • the force is arbitrarily controlled and works with hydraulic, gaseous and / or electrical means. It is crucial that counteract the pressures in the work spaces forces on the back of the rotor to control the desired axial displacement of the rotor and thus the leakage current between the work spaces.
  • the space bounded by the rear side of the rotor is pressure-tightly closed in order to generate the actuating force by means of a liquid or gaseous medium.
  • the invention is used to generate the force to be conveyed medium.
  • the delivery pressure of the machine can be used directly to control the force.
  • one of the rotors (wave rotor) on its side facing away from the working spaces is spherical and mounted in a corresponding spherical recess in the housing.
  • this spherical sphere can cut the radial bearing of the rotor to set its axial axis of rotation.
  • a spherical surface on a rotor is present on the rotors in the central end face region centrally, which is mounted on a corresponding spherical recess on the other rotor and limits the work spaces radially inwardly.
  • a connection for the leakage current between the work spaces is additionally established over this area.
  • the exemplary embodiment is a fuel delivery pump shown in longitudinal section.
  • an inlay 2 is arranged secured against rotation, in which rotatable and radially guided and axially displaceably a counter rotor 3 is arranged, which cooperates with a shaft rotor 4 driven from outside the pump.
  • Shaft rotor 4 and counter rotor 3 have on the mutually facing end face an interlocking toothing, are separated by the work spaces in a known manner from each other and on the Counter rotor 3 is driven by the shaft rotor 4.
  • One of the two serrations has a cycloidal cross section to thereby form a linear connection between the tooth crests of the other part and this cycloidal surface.
  • suction kidney suction kidney
  • Druckniere pressure channel
  • the counter rotor 3 is rotatably arranged in a plain bearing bush 5, wherein between the plain bearing bush 5 and the counter rotor 3, a slide bearing shaft 6 is arranged, which is mounted radially and axially in the plain bearing bush 5 and axially displaceable including the counter rotor 3 within the plain bearing bushing 5.
  • the shaft rotor 4 is mounted radially and axially in a sliding bearing 7, wherein between the shaft rotor 4 and the plain bearing bush 7, the hat-shaped end of a drive shaft 8 projects, the shaft rotor 4 is immersed with a corresponding cylindrical portion in this hat-shaped formation.
  • a spring 10 is arranged, which serves on the one hand to entrain the shaft rotor 4 during the rotational movement of the shaft 8 and on the other hand, the shaft rotor 4 loaded in the direction counter rotor 3.
  • the housing 1 is closed on the side facing away from the shaft 8 by covers 11 and 12, wherein the inner lid 11 is supported on the one hand on the plain bearing bushing 5 and on the other hand on the outer cover 12, which serves as the actual closure part of the housing 1 of the pump and to the outside is secured by a retaining ring 9 in its axial position.
  • the counter rotor 3 is axially displaceable in the direction of its axis of rotation.
  • This shift can be carried out according to the invention by appropriate means, wherein the pressure developing in the working spaces forms a corresponding force acting on the counter rotor 3 adjusting.
  • This adjusting force counteracts the illustrated embodiment, a restoring force formed by liquid, which acts on the facing away from the working spaces of the counter rotor in the plain bearing bushing 5.
  • To control this reaction force is a connection, not shown, between these spaces available, the forces, in particular due to the applied surfaces, must be coordinated.
  • an insert 13 is sealingly arranged in the inlay 2, which serves for the axial retention of the slide bearing 7 and also for receiving a mechanical seal 17, in which the shaft 8 is rotatably arranged.
  • the shaft 8 is also mounted in this inlay insert 13 via a ball bearing 18, wherein between inlay insert 13 and inlay 2 and between inlay 2 and housing 1 O-rings 16 provide the required seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Claims (7)

  1. Machine à pistons rotatifs, fonctionnant en tant que pompe, compresseur et/ou moteur,
    - comprenant au moins deux pistons rotatifs déplaçables coopérants avec un rotor d'entraînement (4) et un rotor de prise de force (3), dont les axes de rotation présentent un angle axial déterminé l'un par rapport à l'autre,
    - comprenant des dents s'engrenant les unes dans les autres sur les côtés frontaux tournés l'un vers l'autre des rotors (3, 4),
    - un boîtier de machine (1, 2) et un support sur palier radial et axial des rotors (3, 4) dans le boîtier de machine (1, 2), qui délimite avec des côtés frontaux axiaux des rotors, des espaces de travail,
    - un canal d'aspiration et un canal de pression dans le boîtier de machine (1, 2), lesquels peuvent être connectés de manière intermittente aux espaces de travail lorsque les rotors (3, 4) tournent,
    - le support sur palier d'au moins l'un des rotors (3, 4) dans le boîtier de machine (1, 2) présentant une mobilité axiale dans la direction de l'axe de rotation du rotor (3),
    - une force de réglage axiale agissant sur ce rotor (3), laquelle agit à l'encontre de la force s'exerçant dans l'espace de travail sur le rotor (3) et provoquée par la pression de travail,
    caractérisée en ce que la machine à pistons rotatifs présente des moyens hydrauliques, pneumatiques, et/ou électriques, qui agissent sur la portion du rotor (3) opposée aux espaces de travail et qui varient de telle sorte que par déplacement axial du rotor (3) dans la direction axiale, un interstice de court-circuit prédéterminé s'établisse entre les espaces de travail séparés les uns des autres par les dents des rotors et de ce fait qu'une commande de la quantité ou de la quantité de perte soit obtenue.
  2. Machine à pistons rotatifs selon la revendication 1, caractérisée en ce qu'au moins le rotor déplaçable axialement (3) est guidé axialement et radialement dans un espace de commande cylindrique correspondant du boîtier de machine (2).
  3. Machine à pistons rotatifs selon la revendication 1 ou 2, caractérisée en ce que l'espace de commande cylindrique peut être fermé de manière étanche à la pression.
  4. Machine à pistons rotatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que pour produire la force de réglage, on utilise le fluide refoulé.
  5. Machine à pistons rotatifs selon la revendication 4, caractérisée en ce qu'il existe une liaison pour le fluide refoulé entre les espaces de travail et l'espace de commande.
  6. Machine à pistons rotatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que l'un des rotors (4) est réalisé sur son côté opposé aux espaces de travail sous forme sphérique et est monté dans un évidement sphérique correspondant dans le boîtier (2).
  7. Machine à pistons rotatifs selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une surface sphérique est prévue sur un rotor au niveau des rotors (3, 4) dans la région centrale des côtés frontaux, laquelle surface sphérique est supportée sur un évidement sphérique correspondant sur l'autre rotor et limite les espaces de travail radialement vers le centre.
EP05756080.7A 2004-05-25 2005-05-19 Commande du courant de fuite d'intervalle d'une machine a engrenages Active EP1749145B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004026048A DE102004026048A1 (de) 2004-05-25 2004-05-25 Spaltverluststromsteuerung
PCT/DE2005/000934 WO2005116403A1 (fr) 2004-05-25 2005-05-19 Commande du courant de fuite d'intervalle d'une machine a engrenages

Publications (2)

Publication Number Publication Date
EP1749145A1 EP1749145A1 (fr) 2007-02-07
EP1749145B1 true EP1749145B1 (fr) 2013-07-17

Family

ID=34971452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05756080.7A Active EP1749145B1 (fr) 2004-05-25 2005-05-19 Commande du courant de fuite d'intervalle d'une machine a engrenages

Country Status (6)

Country Link
US (1) US20070253851A1 (fr)
EP (1) EP1749145B1 (fr)
JP (1) JP5244385B2 (fr)
DE (1) DE102004026048A1 (fr)
ES (1) ES2425363T3 (fr)
WO (1) WO2005116403A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8834140B2 (en) * 2004-05-25 2014-09-16 Cor Pumps + Compressors Ag Leakage loss flow control and associated media flow delivery assembly
JP5085528B2 (ja) * 2005-03-16 2012-11-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 回転ピストン機械
CN101970801B (zh) * 2007-08-31 2013-04-10 罗伯特·博世有限公司 用于将压缩空气能转化为机械能的方法及其压缩空气发动机
DE102008003240B4 (de) 2008-01-04 2024-02-15 Robert Bosch Gmbh Förderaggregat
DE102008023475A1 (de) 2008-05-14 2009-11-19 Robert Bosch Gmbh Hydromaschine
DE102008038625A1 (de) * 2008-08-12 2010-02-18 Cor Pumps + Compressors Ag Stirnzahnradpumpe
DE102008042564A1 (de) 2008-10-02 2010-04-08 Robert Bosch Gmbh Förderaggregat
US9115646B2 (en) 2010-06-17 2015-08-25 Exponential Technologies, Inc. Shroud for rotary engine
DE102011084828B4 (de) * 2011-10-19 2024-02-15 Robert Bosch Gmbh Förderaggregat
EP3724507A4 (fr) 2017-12-13 2021-10-20 Exponential Technologies, Inc. Dispositif à écoulement de fluide rotatif
US11168683B2 (en) 2019-03-14 2021-11-09 Exponential Technologies, Inc. Pressure balancing system for a fluid pump
DE102020124825A1 (de) 2020-09-23 2022-03-24 Kolektor Group D.O.O. Motor-Pumpe-Einheit
DE102021103306A1 (de) 2021-02-12 2022-08-18 Kolektor Group D.O.O. Handgeführtes Druckflüssigkeitsgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005604B1 (fr) * 1997-08-21 2002-07-31 Felix Arnold Machine a piston rotatif

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US2501998A (en) * 1938-02-21 1950-03-28 Dutrey Andre Roto-volumetric pump
CH476212A (de) * 1966-06-24 1969-07-31 Schindler Werner Verdrängungspumpe
CH634126A5 (de) * 1978-06-23 1983-01-14 Burckhardt Ag Maschf Rotationskolbenmaschine mit einem mindestens teilweise kugelfoermigen innenraum.
DE2946304C2 (de) * 1979-11-16 1983-02-03 Wolfhart Dipl.-Phys. 8037 Olching Willimczik Drehkolbenartige Rotationskolbenmaschine
US5085187A (en) * 1991-03-11 1992-02-04 Chrysler Corporation Integral engine oil pump and pressure regulator
DE9218694U1 (de) * 1991-12-09 1995-03-30 Arnold, Felix, 69239 Neckarsteinach Drehkolbenmaschine
DE10025723A1 (de) * 2000-05-25 2001-11-29 Gkn Sinter Metals Gmbh Geregelte Pumpe
DE10335939B4 (de) * 2002-08-02 2013-07-04 Robert Bosch Gmbh Innengehäuse für Drehkolbenmaschinen
AT413140B (de) * 2003-03-28 2005-11-15 Tcg Unitech Ag Zahnradpumpe
CA2536279C (fr) * 2003-09-11 2013-02-12 Cor Pumps + Compressors Ag Machine a piston rotatif
JP2007505249A (ja) * 2003-09-11 2007-03-08 コア・ポンプス・プルス・コンプレッサーズ・アクチエンゲゼルシャフト 回転ピストン機械
US7299740B2 (en) * 2004-09-13 2007-11-27 Haldex Brake Corporation Reciprocating axial displacement device
JP5085528B2 (ja) * 2005-03-16 2012-11-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 回転ピストン機械

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005604B1 (fr) * 1997-08-21 2002-07-31 Felix Arnold Machine a piston rotatif

Also Published As

Publication number Publication date
US20070253851A1 (en) 2007-11-01
ES2425363T3 (es) 2013-10-15
JP5244385B2 (ja) 2013-07-24
JP2008500482A (ja) 2008-01-10
WO2005116403A1 (fr) 2005-12-08
EP1749145A1 (fr) 2007-02-07
DE102004026048A1 (de) 2005-12-29

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