EP2616685A2 - Unité de circulation - Google Patents

Unité de circulation

Info

Publication number
EP2616685A2
EP2616685A2 EP11735661.8A EP11735661A EP2616685A2 EP 2616685 A2 EP2616685 A2 EP 2616685A2 EP 11735661 A EP11735661 A EP 11735661A EP 2616685 A2 EP2616685 A2 EP 2616685A2
Authority
EP
European Patent Office
Prior art keywords
drive shaft
rotor
delivery unit
toothing
inlet
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
EP11735661.8A
Other languages
German (de)
English (en)
Other versions
EP2616685B1 (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

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
    • 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 of the type of
  • Drive shaft of the drive shaft can wobble, wherein between the teeth of the rotor and the toothing of the stator housing working spaces are formed, which can be filled via an inlet and emptied via a drain.
  • 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
  • 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.
  • the measures listed in the dependent claims are advantageous
  • inlet and outlet are placed in the sliding plane, wherein the inlet is arranged in the one section and the outlet in the other section of the inclined sliding plane.
  • Fig.l shows in section an inventive delivery unit
  • FIG. 2 shows a drive shaft of the delivery unit according to Fig.l.
  • Fig.l 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 is connected to an am
  • Stator housing 4 formed teeth 13 meshes, wherein between the
  • Working spaces 14 are formed, which can be filled via an inlet 15 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 on the displacement principle, so that fluid
  • 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 may also be a different toothing.
  • the teeth 12,13 may alternatively be performed obliquely or spirally.
  • Drive shaft 2 and the drain 16 is provided as a passage opening at 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 designed differently.
  • the drain 16 may be formed, for example, arcuate and more
  • 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 of Figure 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 spaces 14 via the channel 20, the recess 22 and the through holes 23 and the
  • the inclined sliding plane 5 comprises a surface which is, for example, of circular design, wherein the inlet 15 is arranged in one section, for example one circular half, and the outlet 16 in the other section, for example 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 stator housing 4 can also be designed as a rotating component.
  • 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 according to the invention of the delivery unit according to Fig.l.
  • the parts which are identical or functionally equivalent to the view of FIG. 1 are identified by the same reference numerals.

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)

Abstract

L'invention porte sur une unité de circulation. On connaît déjà une unité de circulation comprenant un arbre d'entraînement et un rotor entraîné par l'arbre d'entraînement et qui est monté rotatif dans un carter de stator, le rotor présentant, à son côté frontal éloigné de l'arbre d'entraînement, une denture qui engrène avec une denture formée sur le carter de stator, l'arbre d'entraînement présentant un plan de glissement oblique coopérant avec le rotor, qui est formé sur un épaulement de l'arbre d'entraînement, et fait osciller le rotor au moyen de son axe de rotor autour de l'axe d'entraînement de l'arbre d'entraînement, dans lequel, entre la denture du rotor et la denture du carter de stator sont formées des chambres de travail qui peuvent être remplies à travers une entrée et vidées à travers une sortie. Dans l'un des modes de réalisation, le fluide est amené axialement et évacué radialement. Dans l'autre mode de réalisation, le fluide est amené et évacué axialement. Pour cela, il est nécessaire d'utiliser des soupapes de commande constituées par des clapets anti-retour. Les clapets anti-retour donnent lieu à des fuites intérieures supplémentaires, ce qui a pour conséquence une réduction du rendement volumétrique de la pompe. Les soupapes sont des éléments rapportés qui sont liés à des coûts additionnels et un accroissement du risque de panne. Dans l'unité de circulation selon l'invention, on peut se dispenser des soupapes de commande. Selon l'invention, l'amenée (15) s'effectue dans un canal (20) de l'arbre d'entraînement (2) et la sortie (16) au niveau de l'épaulement (6) de l'arbre d'entraînement (2).
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 true EP2616685A2 (fr) 2013-07-24
EP2616685B1 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
SI2137378T1 (en) * 2007-03-13 2018-02-28 Robert Bosch Gmbh Pump or engine
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
PT3377767T (pt) 2015-11-18 2020-03-31 Nestle Sa Disposição de compressor rotativo

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
WO2004051088A1 (fr) * 2002-09-24 2004-06-17 Kawakami Mfg. Co., Ltd Pompe a plateau oscillant a debit variable
SI2137378T1 (en) 2007-03-13 2018-02-28 Robert Bosch Gmbh Pump or engine
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012034759A2 *

Also Published As

Publication number Publication date
CN103429897A (zh) 2013-12-04
WO2012034759A3 (fr) 2013-04-04
US20130189142A1 (en) 2013-07-25
US9046099B2 (en) 2015-06-02
DE102010040758A1 (de) 2012-03-15
EP2616685B1 (fr) 2018-03-28
CN103429897B (zh) 2016-02-24
WO2012034759A2 (fr) 2012-03-22

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