EP2616685B1 - Unité de circulation - Google Patents

Unité de circulation Download PDF

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Publication number
EP2616685B1
EP2616685B1 EP11735661.8A EP11735661A EP2616685B1 EP 2616685 B1 EP2616685 B1 EP 2616685B1 EP 11735661 A EP11735661 A EP 11735661A EP 2616685 B1 EP2616685 B1 EP 2616685B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
rotor
outflow
delivery unit
sliding plane
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
EP11735661.8A
Other languages
German (de)
English (en)
Other versions
EP2616685A2 (fr
Inventor
Evgenij Skrynski
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 EP2616685A2 publication Critical patent/EP2616685A2/fr
Application granted granted Critical
Publication of EP2616685B1 publication Critical patent/EP2616685B1/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
    • 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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/062—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
    • 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
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Definitions

  • the invention relates to a delivery unit according to the preamble of the main claim.
  • the fluid is axially fed in and radially discharged.
  • the fluid is axially supplied and removed.
  • control valves in the form of check valves are required.
  • the check valves cause additional internal leakage, resulting in a reduction in the volumetric efficiency of the pump.
  • the valves are additional parts, which are associated with additional costs and increased risk of failure.
  • the delivery unit according to the invention with the characterizing features of the main claim has the advantage that can be dispensed with the control valves by the inlet is provided in a channel of the drive shaft and the drain at the shoulder of the drive shaft or vice versa.
  • Inlet and outlet are placed in the slip plane, with the inlet arranged in one section and the outlet in the other section of the inclined sliding plane.
  • a certain pressure level can be set.
  • a desired pressure-forces balance in the pump can be achieved.
  • Fig.1 shows in section an inventive delivery unit.
  • the delivery unit for example a pump or a compressor, comprises a drive shaft 2 driven by an actuator 1.
  • the drive shaft 2 drives a rotor 3, which is rotatably arranged in a stator housing 4.
  • the drive shaft 2 has a cooperating with the rotor 3 inclined sliding plane 5, which is formed on a shoulder 6 of the drive shaft 2 and the rotor 3 can tumble with its rotor axis 7 about the drive shaft 8 of the drive shaft 2.
  • the rotor 3 has on its end facing away from the drive shaft 2 a toothing 12 which meshes with a toothing 13 formed on the stator 4, wherein between the teeth 12 of the rotor 3 and the toothing 13 of the stator housing 4 working chambers 14 are formed, which via an inlet 15 can be filled and emptied via a drain 16.
  • the inlet 15 and the outlet 16 include control edges 24, 25 which determine the connection times from the work spaces 14. As a result, a delayed or premature emptying of the work spaces can be achieved.
  • the teeth 12 of the rotor 3 and the teeth 13 of the stator 4 have a different number of teeth.
  • the delivery unit works according to the displacement principle, so that fluid is sucked into the working chambers 14 in a self-priming manner and expelled from the latter at higher pressure.
  • the rotor 3 On its side facing the drive shaft 2, the rotor 3 has a sliding surface 19 cooperating with the inclined sliding plane 5 and the toothing 12 on its side facing the toothing 13 of the stator housing 4.
  • the toothing 12 of the rotor 3 and the toothing 13 of the stator housing 4 for example, each a cycloidal toothing, but can also be a different toothing.
  • the teeth 12,13 may alternatively be performed obliquely or spirally.
  • the inlet 15 is provided in a channel 20 of the drive shaft 2 and the outlet 16 is provided as a passage opening on the shoulder 6 of the drive shaft 2.
  • drain 16 may be provided in a channel 20 of the drive shaft 2 and the inlet 15 as a passage opening on the shoulder 6 of the drive shaft 2.
  • the channel 20 extends according to the embodiment at least partially parallel to the drive shaft 8, but can also be expressly designed differently.
  • the drain 16 is arcuate in shape and may include a plurality of drainage apertures arcuately arranged.
  • the channel 20 opens via an inlet 15 designed as a recess 22 in the inclined sliding plane 5.
  • the recess 22 is compared to the cross section of the channel 20, for example, expanded. According to the embodiment according to Fig.2 the recess 22 is semicircular.
  • the rotor 3 for filling the working spaces 14, the rotor 3 in the valleys of the toothing 12 through openings 23, which lead to the other side to the sliding surface 19. In this way, the filling of the working chambers 14 via the channel 20, the recess 22 and the through holes 23 and the emptying via the through holes 23 and the drain 16 can be carried out.
  • the inclined sliding plane 5 comprises a surface which is of circular design, wherein the inlet 15 is arranged in one section, that is to say one half of the circle, and the outlet 16 is arranged in the other section, that is to say the other circular half of the inclined sliding plane 5.
  • the inlet 15 and the drain 16 are in the inclined sliding plane 5 next to each other and spaced from each other. Between the inlet 15 and the outlet 16 at least one separating web 21 is provided, so that the inlet 15 and the outlet 16 are tightly separated from each other.
  • the delivery unit can be flowed through in both directions, i. that the inflow 15 can also be an outflow and the outflow 16 can also be an inflow.
  • Fig.2 shows a drive shaft of the delivery unit according to the invention Fig.1 ,

Landscapes

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

Claims (6)

  1. Ensemble de transport présentant un arbre d'entraînement (2) et un rotor (3) entraîné par l'arbre d'entraînement (2) et monté à rotation dans un carter de stator (4),
    l'arbre d'entraînement (2) présentant sur un épaulement (6) de l'arbre d'entraînement (2) un plan oblique de coulissement (5) qui coopère avec le rotor (3) et qui permet à l'axe (7) du rotor (3) d'effectuer un mouvement de nutation autour de l'axe d'entraînement (8) de l'arbre d'entraînement (2),
    le rotor (3) présentant sur son côté frontal non tourné vers l'arbre d'entraînement (2) une denture (12) qui s'engrène sur une denture (13) formée sur le carter de stator (4),
    des espaces de travail (14) qui peuvent être remplis par une amenée (15) et vidés par une sortie (16) étant formés entre la denture (12) du rotor (3) et la denture (13) du carter de stator (4),
    caractérisé en ce que
    l'amenée (15) est prévue dans un canal (20) de l'arbre d'entraînement (2) et la sortie (16) sur l'épaulement (6) de l'arbre d'entraînement (2) ou inversement,
    en ce que la sortie (16) a une configuration cintrée ou la sortie (16) comporte plusieurs ouvertures de sortie disposées en arc,
    en ce que le plan oblique de coulissement (5) a une forme circulaire et l'amenée (15) est disposée dans une moitié du cercle, la sortie (16) étant disposée dans l'autre moitié du cercle du plan oblique de coulissement (5) et
    en ce qu'au moins une nervure de séparation (21) est prévue entre l'amenée (15) et la sortie (16).
  2. Ensemble de transport selon la revendication 1, caractérisé en ce que l'amenée (15) et la sortie (16) sont disposées dans le plan oblique de coulissement (5) de l'arbre d'entraînement (2).
  3. Ensemble de transport selon la revendication 1, caractérisé en ce que l'amenée (15) et la sortie (16) sont disposées l'une à côté de l'autre dans le plan oblique de coulissement (5).
  4. Ensemble de transport selon la revendication 1, caractérisé en ce que le canal (20) débouche dans le plan oblique de coulissement (5) par une découpe (22) de forme semi-circulaire.
  5. Ensemble de transport selon la revendication 1, caractérisé en ce que sur un côté, le rotor (3) présente une surface de coulissement (19) qui coopère avec le plan oblique de coulissement (5) et sur son autre côté, la denture (12).
  6. Ensemble de transport selon la revendication 1, caractérisé en ce que dans les creux de la denture (12), le rotor (3) sont prévues des ouvertures de passage (23) vers son autre côté.
EP11735661.8A 2010-09-14 2011-07-26 Unité de circulation Active EP2616685B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010040758A DE102010040758A1 (de) 2010-09-14 2010-09-14 Förderaggregat
PCT/EP2011/062798 WO2012034759A2 (fr) 2010-09-14 2011-07-26 Unité de circulation

Publications (2)

Publication Number Publication Date
EP2616685A2 EP2616685A2 (fr) 2013-07-24
EP2616685B1 true EP2616685B1 (fr) 2018-03-28

Family

ID=44628913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11735661.8A Active EP2616685B1 (fr) 2010-09-14 2011-07-26 Unité de circulation

Country Status (5)

Country Link
US (1) US9046099B2 (fr)
EP (1) EP2616685B1 (fr)
CN (1) CN103429897B (fr)
DE (1) DE102010040758A1 (fr)
WO (1) WO2012034759A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013991A1 (de) * 2007-03-13 2008-12-04 Cor Pumps + Compressors Ag Pumpe oder Motor
DE102011084828B4 (de) * 2011-10-19 2024-02-15 Robert Bosch Gmbh Förderaggregat
DE102014209140A1 (de) 2013-05-23 2014-11-27 Robert Bosch Gmbh Förderaggregat
DE102014219219A1 (de) 2014-09-24 2016-03-24 Robert Bosch Gmbh Förderaggregat
WO2017084991A1 (fr) * 2015-11-18 2017-05-26 Nestec S.A. Agencement de compresseur rotatif

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831436A (en) * 1952-08-19 1958-04-22 Garvenswerke Maschinen Pumpen & Waagenfabrik W Garvens Pump
US3964842A (en) * 1975-01-20 1976-06-22 Trw Inc. Hydraulic device
DE10163801A1 (de) * 2001-12-22 2003-07-17 Heptec Gmbh Radialverdichter, insbesondere Kompressor für Beatmungsgeräte, Laufrad sowie Beatmungsgerät
EP1544466A4 (fr) * 2002-09-24 2010-08-25 Anelva Technix Corp Pompe a plateau oscillant a debit variable
DE102008013991A1 (de) 2007-03-13 2008-12-04 Cor Pumps + Compressors Ag Pumpe oder Motor
JP4130470B1 (ja) * 2008-02-14 2008-08-06 株式会社大和電機商会 液体移送ポンプ

Also Published As

Publication number Publication date
WO2012034759A2 (fr) 2012-03-22
WO2012034759A3 (fr) 2013-04-04
US9046099B2 (en) 2015-06-02
CN103429897B (zh) 2016-02-24
EP2616685A2 (fr) 2013-07-24
CN103429897A (zh) 2013-12-04
US20130189142A1 (en) 2013-07-25
DE102010040758A1 (de) 2012-03-15

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