EP2342464B1 - Ventilateur à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne - Google Patents

Ventilateur à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne Download PDF

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Publication number
EP2342464B1
EP2342464B1 EP09736401.2A EP09736401A EP2342464B1 EP 2342464 B1 EP2342464 B1 EP 2342464B1 EP 09736401 A EP09736401 A EP 09736401A EP 2342464 B1 EP2342464 B1 EP 2342464B1
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EP
European Patent Office
Prior art keywords
conveying
cross
outlet
blower
housing part
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
EP09736401.2A
Other languages
German (de)
English (en)
Other versions
EP2342464A1 (fr
Inventor
Berthold Herrmann
Andreas Bumbel
Jakob Gehlen
Rainer Peters
Thomas Rösgen
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP2342464A1 publication Critical patent/EP2342464A1/fr
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Publication of EP2342464B1 publication Critical patent/EP2342464B1/fr
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps

Definitions

  • the invention relates to side channel blower, in particular secondary air blower for an internal combustion engine with a housing in which an inlet and an outlet is formed, a housing part in which a substantially annular extending delivery channel is arranged, an impeller which is rotatably mounted in the housing and conveyor blades which cooperate with the opposite conveying channel, an interrupting portion between the inlet and the outlet in which the conveying channel is interrupted in the circumferential direction and a Queritessverminderer, which reduces the conveying channel depth over a predetermined portion.
  • the object of the invention is therefore to design a side channel blower so that with the same size, an increased delivery volume can be achieved and at the same time an increased noise level can be avoided by pulsations and tearing flows.
  • the radial extent of the cross-sectional reducer increases steadily from the inlet to the outlet and the conveying channel has in cross-section two paragraphs to adjoining wall surfaces of the conveying channel. It has been found that in such a design of the cross-section reducer, the delivery volume can be increased at about the same achievable static pressure and at the same time noise emissions can be reduced by preventing turbulence when entering the air from the feed channel in the impeller.
  • the cross-sectional reducer reduces the conveying channel depth by a constant difference in the circumferential direction and in the radial direction.
  • Such an embodiment of the Queritessverminderers is relatively easy to produce in automated systems. Already with a small difference of 0.1 mm to 2 mm in the delivery channel depth a significant improvement in terms of noise emissions and achievable delivery volume is available.
  • the Querterrorismsverminderer is made in one piece with the housing part, so that additional components omitted.
  • the housing consists at least of a first housing part and a second housing part, in each of which a delivery channel is formed, wherein in both conveyor channels a Querterrorismsverminderer is arranged.
  • the radial extent of the cross-sectional reducer in the first delivery channel in the first housing part, in which the inlet is arranged grows toward the outlet from radially inward to radially outward and in the second Delivery channel in the second housing part, in which the outlet is arranged, grows toward the outlet from radially outside to radially inside, wherein the impeller blades of the impeller cooperate with two conveying channels. It has been found that this pressure fluctuations are reduced in particular in the pressure range and a better acoustics is achieved.
  • a side channel blower in which a larger volume of air can be delivered while maintaining the maximum pressure and at the same time the noise level is reduced.
  • FIG. 1 shown side channel blower consists of a two-part housing 2 and a rotatably mounted in the housing 2 and driven by a drive unit 3 impeller 4, for example for the promotion of air.
  • the air passes via an axial inlet 6 into an inlet region 8 of a first housing part 10, which serves in the present embodiment as a cover part of the side channel blower. From the inlet region 8, the air then flows into two substantially annularly extending conveying channels 12, 14, of which the first conveying channel 12 is formed in the cover part 10 and the second conveying channel 14 is formed in a second housing part 16, in which also a bearing 18 a drive shaft 19 of the drive unit 3 is arranged, on which the impeller 4 is fixed.
  • the outlet of the air via a tangential outlet 20, which is arranged on the second housing part 16.
  • the impeller 4 is disposed between the cover member 10 and the second housing member 16 and has at its periphery conveying blades 22 which are curved and extend radially, wherein the conveying blades 22 by a radially extending peripheral ring 24 in a first row axially opposite to the first Delivery channel 12 and a second row axially opposite to the second conveying channel 14 are divided, so that two swirl ducts are formed, which are each formed by one of the conveying channels 12, 14 with the facing part of the impeller 4.
  • the outer diameter of the conveying channels 12, 14 is slightly larger than the outer diameter of the impeller 4, so that a fluidic connection between the two conveying channels 12, 14 outside the outer periphery of the impeller 4 is made. Between the extending from the peripheral ring 24 conveyor blades 22 are thus formed radially outwardly open pockets 26, in which the air is promoted or accelerated.
  • the axial inlet 6 is as far as possible from the tangential outlet 20 in the direction of rotation of the impeller 4.
  • interruption regions 28 on the cover part 10 and the housing part 16 are arranged, in which the delivery channels 12, 14 are interrupted, so that in the interruption region 28 axially opposite to the conveying blades 22 of Impeller 4 the smallest possible gap is available.
  • the delivery channel 12 arranged in the cover part 10 has a substantially constant width b and extends over the circumference of the cover part 10, with the exception of the interruption region 28.
  • the impeller 4 rotates clockwise from the inlet region 8 to the end of the delivery channel 12 and then over the interruption region 28, from where a single pocket 26 is again passed over the inlet region 8 and draws in air.
  • the cover part 10 is fastened by means of screws to the second housing part 16, which are inserted through corresponding bores 30 which are formed on radially outwardly extending projections 32 on the cover part 10. At two of these projections 32 are additionally small, axially extending bolts 34, which serve for the prefixing of the cover part 10 on the second housing part 16.
  • a groove 38 is formed in the seal between the cover part 10 and the second housing part 16, a sealing ring 40 is inserted, which is held by lugs 42 in the groove 38.
  • an annular web 46 is formed, which engages after assembly of the fan in a corresponding groove 48 of the impeller 4, whereby a seal from the conveying channel 12 toward the interior of the impeller. 4 he follows.
  • the cover part 10 has a cylindrical recess 50 into which the drive shaft 19 of the drive unit 3 projects.
  • a Querterrorismsverminderer 52 is arranged, which in the FIG. 2 hatched. This extends over the entire length of the conveying channel 12, starting shortly after the inlet region 8 and ending axially opposite to the second housing part 16 formed outlet 20.
  • the width of the Queritessverminderers 52 thereby increases from the inlet portion 8 to the outlet 20. This means that the Extending outside circumference spirally from the inlet portion 8 to the outlet 20 while the inner circumference of the Queritessverminderers 52 remains constant.
  • the cross-sectional shape of the cross-sectional reducer 52 is shown in FIGS FIG. 3 to recognize.
  • the surface area of the cross-section reducer 52 has a minimum constant height of about 0.1 mm to 2 mm.
  • the wall surface 54 of the conveying channel 12 which is usually continuous in cross-section, has two shoulders 56 each at the transition between conveying channel 12 without cross-sectional reducer 52 and conveying channel 12 with cross-sectional reducer 52.
  • the paragraphs 56 reduce the pressure pulsations occurring and thus lead to lower noise emissions.
  • FIGS. 4 and 5 is the second housing part 16 of the side channel blower according to the invention shown, wherein also a Querterrorismsverminderer 58 is formed and by hatching in figure 4 indicated.
  • This cross-sectional reducer 58 has in cross-section substantially the same shape as the Querterrorismsverminderer 52 in the cover part 10.
  • FIG. 5 clearly that the channel depth in the region of the cross-section reducer 58 is reduced by 0.1 mm to 2 mm in comparison to the other channel depth in cross section.
  • paragraphs 60 are formed in the region of the transition between a subsequent wall surface 61 of the delivery channel 14 and the surface of the cross-sectional reducer 58.
  • the Querterrorismsverminderer 58 extends over the entire length of the conveying channel 14 in the second housing part 16, starting shortly behind the opposite to the lid portion 10 formed on the inlet portion 8 and ending at the outlet 20.
  • the width of the Querterrorismsverminderers 58 grows here from the inlet portion 8 to the outlet 20th
  • the outer circumference remains constant over the run length, while the inner circumference becomes less helical toward the outlet 20.
  • the mode of operation corresponds to the mode of operation of the cross-sectional reducer 52 in the cover part 10.
  • the cross-sectional reducers 52, 58 provide for a steadily reducing from the inlet portion 8 to the outlet 20 available standing flow cross-section.
  • the maximum delivery volume is increased, while the paragraphs 56, 60 in the two delivery channels 12, 14, the speed and uniformity of the vortex flow is reduced, whereby pulsations in the transition from the delivery channels 12, 14 are avoided in the pockets 26, so that the Noise level of the side channel blower is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (5)

  1. Ventilateur á canal latéral, en particulier turbine d'air secondaire pour un moteur à combustion interne, avec
    un carter (2) dans lequel sont formée une entrée (6) et une sortie (20),
    une partie de carter (12), dans laquelle un canal de transfert (12) est disposé, qui s'étend essentiellement n forme annulaire,
    une roue (4) supportée de manière rotative dans le carter et comprenant des ailettes (22) coopérant avec le canal de transfert opposé,
    une région d'interruption (28) entre l'entrée et la sortie, dans laquelle le canal de transfert (12) est interrompu dans la direction circonférentielle,
    et un réducteur de la section transversale (52) qui réduit la profondeur du canal de transfert sur une section prédéterminée,
    caractérisé en ce que
    la dimension radiale du réducteur de la section transversale (52; 58) croît continûment de l'entrée (6) vers la sortie (20), et le canal de transfert (12; 14) présent deux épaulements vers des surfaces de parois (54; 61) adjacentes du canal de transfert (12; 14), vu en section transversale.
  2. Ventilateur á canal latéral, en particulier turbine d'air secondaire pour un moteur à combustion interne selon la revendication 1, caractérisé en ce que le réducteur de la section transversale (52; 58) réduit la profondeur du canal de transfert (12; 14) par une différence constante dans la direction circonférentielle et dans la direction radiale.
  3. Ventilateur á canal latéral, en particulier turbine d'air secondaire pour un moteur à combustion interne selon l'une des revendications 1 ou 2, caractérisé en ce que le réducteur de la section transversale (52; 58) est réalisé d'un seul tenant avec la partie du carter (10; 16).
  4. Ventilateur á canal latéral, en particulier turbine d'air secondaire pour un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter (2) est formé au moins d'une première parte de carter (10) et d'une deuxième partie de carter (16), dans lesquelles un canal de transfert (12, 14) est respectivement formé, un réducteur de la section transversale (52; 58) étant disposé dans les deux canaux de transfert (12, 14).
  5. Ventilateur á canal latéral, en particulier turbine d'air secondaire pour un moteur à combustion interne selon la revendication 4, caractérisé en ce que la dimension radiale du réducteur de la section transversale (52) dans le premier canal de transfert (12) dans la première partie du carter (10), dans laquelle l'entrée (6) est prévue, croît vers la sortie (20), pour exemple du côté radialement intérieur vers le côté radialement extérieur, et dans le deuxième canal de transfert (14) dans la deuxième partie du carter (10), dans laquelle la sortie (20) est prévue, la dimension radiale croît vers la sortie (20), pour exemple du côté radialement extérieur vers le côté radialement intérieur, les ailettes (22) de la roue (4) coopérant avec les deux canaux de transfert (12, 14).
EP09736401.2A 2008-11-06 2009-10-07 Ventilateur à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne Active EP2342464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008056106A DE102008056106B4 (de) 2008-11-06 2008-11-06 Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine
PCT/EP2009/062997 WO2010052082A1 (fr) 2008-11-06 2009-10-07 Ventilateur à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP2342464A1 EP2342464A1 (fr) 2011-07-13
EP2342464B1 true EP2342464B1 (fr) 2018-03-28

Family

ID=41650220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09736401.2A Active EP2342464B1 (fr) 2008-11-06 2009-10-07 Ventilateur à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne

Country Status (3)

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EP (1) EP2342464B1 (fr)
DE (1) DE102008056106B4 (fr)
WO (1) WO2010052082A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012221916A1 (de) * 2012-11-29 2014-06-05 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse für ein Radialgebläse und Radialgebläse
CN111406155B (zh) * 2017-12-21 2022-04-29 皮尔伯格有限责任公司 侧通道鼓风机
US11248618B1 (en) * 2019-03-13 2022-02-15 Airtech Group, Inc. O-ring for side channel blower and side channel blower including said o-ring

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015200A (en) * 1931-01-12 1935-09-24 Spoor Willem Lodewijk Joost Rotary pump
DE876285C (de) * 1940-09-29 1953-05-11 Siemens Ag Ringverdichter
IT1240003B (it) * 1990-04-24 1993-11-27 Nuovopignone-Industrie Meccaniche Efonderia Perfezionamenti in un compressore di tipo rigenerativo a camera toroidale
KR970005981B1 (ko) 1991-06-18 1997-04-22 가부시기가이샤 히다찌세이사뀨쇼 와류블로워

Also Published As

Publication number Publication date
EP2342464A1 (fr) 2011-07-13
DE102008056106B4 (de) 2011-02-17
DE102008056106A1 (de) 2010-05-20
WO2010052082A1 (fr) 2010-05-14

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