EP2391827B1 - Moteur à piston rotatif avec un moteur électrique de rotor externe. - Google Patents

Moteur à piston rotatif avec un moteur électrique de rotor externe. Download PDF

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Publication number
EP2391827B1
EP2391827B1 EP10701350.0A EP10701350A EP2391827B1 EP 2391827 B1 EP2391827 B1 EP 2391827B1 EP 10701350 A EP10701350 A EP 10701350A EP 2391827 B1 EP2391827 B1 EP 2391827B1
Authority
EP
European Patent Office
Prior art keywords
rotary piston
rotor
housing
external
support tube
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
EP10701350.0A
Other languages
German (de)
English (en)
Other versions
EP2391827A2 (fr
Inventor
Felix Arnold
Marian Kacmar
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
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2391827A2 publication Critical patent/EP2391827A2/fr
Application granted granted Critical
Publication of EP2391827B1 publication Critical patent/EP2391827B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • 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
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or 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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
    • F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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

Definitions

  • the invention relates to a rotary piston machine according to the preamble of the main claim.
  • a known rotary piston machine according to the preamble of the main claim.
  • Rotary engine of the generic type ( WO2005 / 024237 A1 ) is on the applicant particularly emphasized as an advantage that such a unit of the housing of the electric motor and pump can be made small because the electric motor absperr finger attacks directly on the power section of the rotors without additional complex storage.
  • the housings can be extremely simple and interconnected. This plays a role in particular in the use in the fuel conveying system of internal combustion engines, for example as a prefeed pump, with the rotary piston engine according to the invention achieving an extremely important silent running, in particular in the automotive industry.
  • the storage and arrangement of the power unit with respect to the axis of rotation of the electric motor plays a significant role, including as regards the relative axial displacement of the power unit. Also with regard to the toothing and the delivery rate given therewith, such can easily be adapted to the demand.
  • the invention has for its object to improve a rotary piston engine of the generic type so that it is particularly inexpensive to produce, versatile and improved in efficiency and compared to the known machines.
  • the rotary piston engine according to the invention with the characterizing features of claim 1 has the advantage over the known machine that it can also be used for suction, an extremely favorable speed ratio between electric external rotor motor and the power unit of the rotary piston machine, so that a speed of 4,000 rpm to a relative speed of 400 rpm of rotors with a gearing 9/10 leads.
  • the sealing lamellae are pressed with their outer sealing edge at the full peripheral speed radially on the tread, so according to the centrifugal force acting radially on the lamellae.
  • an additional advantage of the invention is that due to the construction, in particular the type of toothing of the machine rotors, only very small axial forces are required in order to ensure a highly sealing small gap in the toothing and thus to keep the friction power very low and on the other hand to minimize wear on the sealing surfaces, which in any case leads to good efficiency.
  • the machine housing has a mounting flange exhibiting flange-like central part with openings or lugs for attachment of the rotary piston machine on third objects and on the one hand the central support tube section is arranged and on the other hand, the rotary piston receiving housing is attached.
  • the rotary piston engine according to the invention offers a novel here so far Flange mounting as this has the flange on the central part of the machine housing, which leads to a significant reduction in the overall length of the rotary piston engine.
  • the rotor of the external rotor motor to the outside of the machine in a conventional manner ( DE 103 58 759 A1 ) is covered by a hood connected to the machine housing.
  • the shut-off part is arranged in this housing or in a double-rolling bearing provided at a stopper arranged at the end of this housing.
  • the double rolling bearing assumes additional supporting functions and, if appropriate, can also contribute to an axial adjustability of the shut-off part.
  • the drive shaft of the external rotor motor according to the invention can be mounted in the support tube on bearings are arranged on the side facing away from the permanent magnet side of the outer rotor cooling fins forde Kunststoffventil ist according to an embodiment of the invention (cooling fins on the rotor, known per se DE 20 2006 013 319 U1 ).
  • this toothing is specially provided for lower pressures, ie. H. a high ratio of engine speed to pump delivery.
  • a power unit 2 and a shut-off part 3 is arranged in a machine housing 1, which engage on which side facing each other via a Trochoidenvertechnikung.
  • the machine housing 1 is closed on the Absperrteilseite by a hollow cover 4, which is fixed in the opening 3 receiving the Absperrteil.
  • a spacer ring 5 is arranged, which separates two arranged on a pin 6 of the Absperrteils 3 bearings 7 from each other and radially outwardly as the spacer 5 on the inner wall of the hollow cover 4 radially support and at the same time for a precise guidance take over the storage required storage.
  • the hollow cover 4 is sealed to the machine housing 1 through an O-ring 9 and secured by screws 10 on the machine housing 1.
  • the axial adjustability of the shut-off part 3, which ensures precise delivery and also smooth running, is achieved by means of a shim 11 and a wave spring 12 acting on the journal 6 on its end face.
  • the drive of the line part 2 is effected by a mecanicläutermotor whose drive shaft 13 is also mounted in the machine housing 1.
  • the machine housing 1 a projecting into the stator 8 of the external rotor motor support tube section 14 on which the inner stator is arranged in the form of the electric coil 15 and wherein the drive shaft 13 is mounted on roller bearings 16 on the inside of the support tube section 14.
  • the machine housing 1 between support tube section 14 and the actual line part and Absperrteil receiving machine housing is flange-shaped with mounting holes 17 so as to attach the rotary piston machine in the simplest way.
  • the mounting holes 17 can be arranged even in a square configuration of the flange in the free corners, whichever embodiment is particularly useful.
  • the inner stator 15 encompassing rotor bell 18 is fixed, on which a cooperating with the inner stator 15 magnet 19 is arranged.
  • the external rotor motor is closed to the outside by a hood 20 which is fixed to the housing 1, in particular to its flange.
  • FIG. 2 illustrated second embodiment is in principle constructed as the first embodiment with minor differences, wherein the same reference numerals for the same parts as in Fig. 1 be used.
  • the rotor bell 18 has no extra magnet, but is itself magnetically formed. Compared to the first embodiment, therefore, the bell depth is larger and the stator 8 is formed less wide.
  • this embodiment of the invention has no hood on the rotor bell to save additional space and to mount over the flange 21 of the housing 1, the complete rotary engine with motor in an opening of a carrier to thereby gain time again axial length.
  • FIG. 3 illustrated third embodiment has the above-described features of the first and partly of the second embodiment, in addition to the fact that on the rotor bell 18 on the side facing away from the machine for cooling mitrotierende cooling ribs 22 are arranged.
  • at 1) between line part 2 and shut-off part 3 due to the nature of the sealing teeth sliding speeds are present, which amount to only a fraction of the peripheral speeds of the rotors.
  • a rotor pairing with a tooth ratio of 9/10 at a speed of 4,000 rpm has a maximum relative speed at the rotor circumference of 400 rpm.
  • the full peripheral speed would act on the radial outer sealing edge, that is to say at maximum relative speed equal to rotor circumference of 4,000 rpm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (5)

  1. Moteur à piston rotatif
    - comprenant au moins deux rotors agissant conjointement de partie de puissance (2) et partie d'arrêt (3), qui présentent chacun une denture frontale dont le nombre de dents diffère d'une dent, qui délimitent des espaces de travail avec un carter de moteur (1) recevant les rotors (2, 3),
    - comprenant un angle déterminé des axes de rotation des rotors (2, 3) l'un par rapport à l'autre pour générer l'effet de propulsion,
    - avec un entraînement de la partie de puissance (2) par un moteur électrique disposé sur le même axe, et une liaison en rotation entre le moteur électrique et la partie de puissance (2) et
    - comprenant une réalisation cycloïdale de la denture, c'est-à-dire avec une denture trochoïdale,
    caractérisé en ce que
    - le moteur électrique est un moteur à induit externe avec un stator interne (15) et un rotor externe,
    - le carter de moteur (1) présente une portion de tube porteur (14) pénétrant dans le stator interne (15) et le supportant,
    - le rotor externe présente une cloche de rotor (18) s'engageant autour du stator interne avec un arbre d'entraînement central (13) traversant la portion de tube porteur (14) avec une liaison en rotation vers la partie de puissance (2),
    - l'arbre d'entraînement (13) est supporté vers la paroi interne de la portion de tube porteur (14),
    - le carter de moteur (1) présente une partie centrale de type bride présentant une bride de montage (21), avec des ouvertures (17) ou des ergots pour la fixation du moteur à piston rotatif à des objets tiers, et au niveau de laquelle d'une part est disposée la portion de tube porteur central (14) et d'autre part est fixé le carter de moteur (1).
  2. Moteur à piston rotatif selon la revendication 1,
    caractérisé en ce que
    le rotor du moteur à induit externe est recouvert vers l'extérieur du moteur par un capot (20) connecté au carter de moteur (1).
  3. Moteur à piston rotatif selon la revendication 1,

    caractérisé en ce que
    la partie d'arrêt (3) est disposée dans ce carter ou dans un double palier à roulement (7) prévu bouchon disposé à l'extrémité de ce carter.
  4. Moteur à piston rotatif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'arbre d'entraînement (13) du moteur à induit externe est supporté dans le tube porteur (14) sur des paliers à roulement (16).
  5. Moteur à piston rotatif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    des nervures de refroidissement pour la ventilation d'air de refroidissement sont disposées sur le côté du rotor externe opposé à l'aimant permanent (19).
EP10701350.0A 2009-01-28 2010-01-20 Moteur à piston rotatif avec un moteur électrique de rotor externe. Active EP2391827B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009006521A DE102009006521A1 (de) 2009-01-28 2009-01-28 Drehkolbenmaschine
PCT/EP2010/050624 WO2010086267A2 (fr) 2009-01-28 2010-01-20 Moteur à piston rotatif

Publications (2)

Publication Number Publication Date
EP2391827A2 EP2391827A2 (fr) 2011-12-07
EP2391827B1 true EP2391827B1 (fr) 2016-06-01

Family

ID=42282692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10701350.0A Active EP2391827B1 (fr) 2009-01-28 2010-01-20 Moteur à piston rotatif avec un moteur électrique de rotor externe.

Country Status (5)

Country Link
US (1) US8777595B2 (fr)
EP (1) EP2391827B1 (fr)
CN (1) CN102301141B (fr)
DE (1) DE102009006521A1 (fr)
WO (1) WO2010086267A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120142825A1 (en) * 2010-12-07 2012-06-07 E.I. Du Pont De Nemours And Company Filled polyimide polymers
US20120142824A1 (en) * 2010-12-07 2012-06-07 E. I. Du Pont De Nemours And Company Polymer blend compositions
DE102011001394B4 (de) * 2011-03-18 2015-04-16 Halla Visteon Climate Control Corporation 95 Elektrisch angetriebener Kältemittelverdichter
DE102014209140A1 (de) * 2013-05-23 2014-11-27 Robert Bosch Gmbh Förderaggregat
WO2015139554A1 (fr) * 2014-03-18 2015-09-24 西安正安环境技术有限公司 Mécanisme anti-blocage de rotor de compresseur sphérique, mécanisme de puissance anti-blocage de compresseur sphérique, et compresseur sphérique

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Publication number Priority date Publication date Assignee Title
GB1308295A (en) * 1969-02-25 1973-02-21 Lucas Industries Ltd Liquid pump or motor
USRE28075E (en) * 1972-10-19 1974-07-16 Double claw tooth stator synchronous and stepping motor with indicator
US3856440A (en) * 1974-03-19 1974-12-24 E Wildhaber Rotor pair for positive fluid displacement
DE2938276A1 (de) 1979-09-21 1981-04-09 Robert Bosch Gmbh, 7000 Stuttgart Fluegelzellenverdichter
DE3347360C2 (de) * 1983-12-28 1995-04-13 Papst Motoren Gmbh & Co Kg Kollektorloser Außenläufer-Gleichstrommotor
US4836147A (en) 1987-12-14 1989-06-06 Ford Motor Company Cooling system for an internal combustion engine
US5513969A (en) * 1991-12-09 1996-05-07 Arnold; Felix Rotary piston machine having engaging cycloidal gears
WO2000008338A1 (fr) * 1998-08-06 2000-02-17 Automotive Motion Technology Limited Pompe entrainee par un moteur
EP1432104B1 (fr) 2002-12-16 2006-12-06 ebm-papst St. Georgen GmbH & Co. KG Moteur à rotor extérieur avec support de palier fixé
JP5053637B2 (ja) 2003-09-11 2012-10-17 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
DE202006013319U1 (de) 2005-10-08 2007-02-15 Ebm-Papst St. Georgen Gmbh & Co. Kg Außenläufermotor
DE102007022418A1 (de) * 2006-05-10 2007-11-15 Cor Pumps + Compressors Ag Drehkolbenmaschine
US8360748B2 (en) * 2006-05-10 2013-01-29 Cor Pumps + Compressors Ag Rotary piston machine

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
US20120014826A1 (en) 2012-01-19
DE102009006521A1 (de) 2010-07-29
CN102301141B (zh) 2014-12-17
WO2010086267A2 (fr) 2010-08-05
CN102301141A (zh) 2011-12-28
US8777595B2 (en) 2014-07-15
WO2010086267A3 (fr) 2011-03-17
EP2391827A2 (fr) 2011-12-07

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