WO2019120550A1 - Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne - Google Patents

Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne Download PDF

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Publication number
WO2019120550A1
WO2019120550A1 PCT/EP2017/084205 EP2017084205W WO2019120550A1 WO 2019120550 A1 WO2019120550 A1 WO 2019120550A1 EP 2017084205 W EP2017084205 W EP 2017084205W WO 2019120550 A1 WO2019120550 A1 WO 2019120550A1
Authority
WO
WIPO (PCT)
Prior art keywords
blower
channel
outlet
combustion engine
internal combustion
Prior art date
Application number
PCT/EP2017/084205
Other languages
German (de)
English (en)
Inventor
Alexander Gotter
Thomas Rösgen
Petra DEITER
Alpay CAPAN
Krischan VON DER BEEK
Matthias Boutros-Mikhail
Original Assignee
Pierburg 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 Pierburg Gmbh filed Critical Pierburg Gmbh
Priority to PCT/EP2017/084205 priority Critical patent/WO2019120550A1/fr
Priority to EP17823139.5A priority patent/EP3728859A1/fr
Publication of WO2019120550A1 publication Critical patent/WO2019120550A1/fr

Links

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
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a side channel blower, in particular secondary air blower for an internal combustion engine with a multi-part housing having at least a first housing part, which is designed as a cup part and a second housing part, which is designed as a cover part, wherein the cup part and the cover plate in a parting plane below Intermediate switching of a sealing member are connected to each other and include a Gebufäseraum, wherein an inlet, which opens via an inlet region in at least one substantially annularly extending conveying channel with a radially delimiting wall, and an outlet, an impeller, which is drivable via a drive unit is rotatably mounted in the housing and having conveying blades, which cooperate with the opposite conveying channel, and an interruption area between the inlet and the outlet, in which the at least one conveying channel in the circumferential direction wherein the outlet has an outlet channel portion into which the at least one delivery channel opens, the outlet channel portion having an outwardly directed discharge opening and an outlet opening directed to the delivery channel having first and second
  • a pump for conveying fluids is proposed in DE 10 2009 006 652, to arrange a straight parting plane of the housing parts in the region of the impeller.
  • a commercially available sealing ring is provided in a corresponding groove.
  • the groove must be machined very accurately in order to ensure the required seal with a commercially available sealing ring.
  • Alternative sealing concepts such as a liquid seal, can not be considered, as this could contaminate the fan room. It is therefore the object to provide a rare-channel blower with which the above disadvantage can be avoided in a simple and cost-effective manner.
  • This object is achieved by the characterizing part of the main claim. Characterized in that the parting plane extends in height or below a bottom surface of the conveying channel in the lid part. This makes it possible to realize a sufficient distance of the sealing member to the fan room.
  • the outlet channel section can be made larger on average, thereby enabling an increase in throughput.
  • a liquid seal can be used as a sealing member.
  • the parting plane is step-shaped, with a wall part of the pot part enclosing a wall part of the cover part, whereby the step-shaped parting plane acts as an additional labyrinth seal.
  • a particularly easy to produce side channel blower is created when a lower part of the cup part wall portion rests on an upper side of a cover part flange.
  • a groove can be provided in the cover part flange part in which the sealing member can be inserted.
  • the outlet opening has a first and a second side edge, wherein the first side edge part of the interruption region and the second side edge is part of the radially delimiting wall and wherein the first and the second side edge span a first level egg, which encloses an angle a> 30 ° with a second plane E 2 spanned by the ejection opening, such that the outlet opening extends into the radially delimiting wall, is a true tangential flow in the transition region from the conveying channel to the
  • Outlet channel section of the outlet possible.
  • the efficiency is basically increased and also higher operating pressures are possible.
  • a particularly easy to manufacture arrangement results from the fact that the cover part angei demt to the drive unit.
  • an opening for a bearing of a drive shaft is provided in the cover part.
  • the cup part then closes the side channel blower to the outside.
  • a side channel blower in which, compared to known side channel blowers, the housing can be sealed in a simpler and less expensive manner.
  • a greater flexibility in terms of the cross-sectional diameter of the outlet channel section is given.
  • Figure 1 shows a side view of a side channel blower in a sectional view.
  • FIG. 2 shows a perspective view of a cup part of the side channel pump of FIG. 1.
  • the side channel blower shown in Figure 1 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 (see FIG. 2) of a first housing part 10, which in the present embodiment serves as a cup part of the rare-canal 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 in a second housing part 16, which in the present embodiment as a cover part of the side channel serves, is trained.
  • the cup part 10 and the lid part 16 thus include a fan chamber 17 a.
  • the cover part 16 has a central opening 15, in which a bearing 18 of a drive shaft 19 of the drive unit 3 is arranged, on which the impeller 4 is fixed.
  • the outlet of the air takes place above a tangential outlet 20, which is arranged on the first housing part 10.
  • the impeller 4 is disposed between the cup portion 10 and the lid portion 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 conveying channel 12 and a second row are axially opposite to the second conveying channel 14 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 delivery channels 12, 14 is slightly larger than the outer diameter of the impeller 4, so that a fluidic connection between the two delivery channels 12, 14 outside the
  • the axial inlet 6 is as far as possible from the tangential outlet 20 in the direction of rotation of the impeller 4.
  • known interruption areas 28 on the cup part 10 and on the lid part 16 are provided between the inlet 6 and the outlet 20.
  • the interruption region 28 in the pot part 10 is shown in FIG. In the interruption regions 28, therefore, the smallest possible gap exists axially opposite the conveying blades 22 of the impeller 4.
  • a further interruption region 32 is formed on a radially delimiting wall 33 of the first housing part 10 and interrupts a radially outwardly arrangedden connecting portion 35 between the two conveying channels 12, 14th
  • the cup part 10 is fastened by not further dargesteilte screws on the second cover part 16, which are inserted through corresponding holes 34 which are formed on radially outwardly extending projections 36 on the cup portion 10.
  • the lid part 16 is in turn connected to known catfish with a housing part 38 of the drive unit 3.
  • the lid part 16 Radially behind a wall 40 of the conveying channel 16, the lid part 16 a flange 41 with a groove 42 which is formed at the level of a bottom surface of the conveying channel 14. A parting plane 46 of the cup part 10 and the lid part 16 is stepped in this way. Thus, a liquid seal 48 may be provided in the groove 42 for sealing between pot portion 10 and lid portion 16, since the liquid seal 48 has no direct connection to the fan chamber 17.
  • annular web 52 Radially in front of a wall 50 of the conveying channel 12, an annular web 52 is formed which engages after assembly of the fan in a corresponding groove 54 of the impeller 4, whereby a seal from the conveying channel 12 in the direction of the interior of the impeller 4 takes place.
  • the cup part 10 has a cylindrical recess 56 into which the drive shaft 19 of the drive unit 3 protrudes.
  • the outlet 20 has a tangential outlet channel section 58 which opens outwardly into a discharge opening 60.
  • the delivery channels 12, 14 are fluidly connected to the outlet channel section 58 via an outlet opening 62.
  • a first and a second side edge 64, 66 define a first plane E t , which encloses an angle "> _ 30 °, in this case approximately 57 °, with a second plane E 2 , which is spanned by the ejection opening 60 (cf. in particular FIG. 3). This has the consequence that the outlet opening 62 extends far into the radially delimiting wall 33 and thus a "real" tangential outflow can be realized with high efficiency.
  • the pot part 10 can be produced from a duroplastic material as a workpiece-falling workpiece. Due to the fact that the conveyor channel 12 and the Fianschteil 41 with the groove 42 no special treatment or Revision is needed » is also the cover Iteil 16 manufactured as werkschwmaschinefa I lendes workpiece.
  • this may be a pump with only one side channel, or the outlet opening and interruptor shape may be configured correspondingly both with respect to the inlet channel leading to the larger current and to the channel opposite to it.

Abstract

L'invention concerne un ventilateur à canal latéral, notamment un ventilateur à air secondaire destiné à un moteur à combustion interne. Le ventilateur comprend un boîtier (2) en plusieurs parties qui comporte au moins une première partie (10) conçue comme une partie formant cuvette et une deuxième partie (16) conçue comme une partie formant couvercle. La partie formant cuvette (10) et la partie formant couvercle (16) sont reliées entre elles dans un plan de séparation (46) avec interposition d'un élément d'étanchéité (48) et inclut une chambre de ventilateur (17). Une entrée (6), qui débouche par une région d'entrée (8) dans au moins un canal de distribution (12, 14) s'étendant de manière sensiblement annulaire et pourvu d'une paroi de délimitation radiale (33), et une sortie (20) sont prévues. Le ventilateur comprend également un rotor (4) qui peut être entraîné par une unité d'entraînement (3), qui est monté à rotation dans le boîtier (2) et qui comporte des pales de transport (22) qui coopèrent avec le canal de transport opposé (12, 14). La sortie (20) comporte une partie de canal de sortie (58) dans laquelle débouche au moins un canal de transport (12, 14). La partie de canal de sortie (58) comporte une ouverture d'éjection (60) dirigée vers l'extérieur et une ouverture de sortie (62) dirigée vers le canal de transport (12, 14). Le plan de séparation (46) s'étend dans la partie formant couvercle (16) à hauteur ou au-dessous d'une surface de fond du canal de transport (14).
PCT/EP2017/084205 2017-12-21 2017-12-21 Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne WO2019120550A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2017/084205 WO2019120550A1 (fr) 2017-12-21 2017-12-21 Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne
EP17823139.5A EP3728859A1 (fr) 2017-12-21 2017-12-21 Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/084205 WO2019120550A1 (fr) 2017-12-21 2017-12-21 Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne

Publications (1)

Publication Number Publication Date
WO2019120550A1 true WO2019120550A1 (fr) 2019-06-27

Family

ID=60915524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/084205 WO2019120550A1 (fr) 2017-12-21 2017-12-21 Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP3728859A1 (fr)
WO (1) WO2019120550A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020182270A1 (fr) * 2019-03-08 2020-09-17 Pierburg Gmbh Soufflante de canal latéral
DE102019130732A1 (de) * 2019-11-14 2021-05-20 Pierburg Gmbh Seitenkanalgebläse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070530A1 (fr) * 1981-07-17 1983-01-26 Friedrich Schweinfurter Pompe à canal latéral ayant des pales radiales de secours
DE102009006652A1 (de) 2009-01-29 2010-08-05 Pierburg Gmbh Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine
WO2017009065A1 (fr) * 2015-07-15 2017-01-19 Gebr. Becker Gmbh Compresseur à canaux latéraux ou pompe à vide à canaux latéraux muni de bandes d'étanchéité d'entrée entre deux canaux annulaires qui se trouvent de chaque côté d'un disque de rotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070530A1 (fr) * 1981-07-17 1983-01-26 Friedrich Schweinfurter Pompe à canal latéral ayant des pales radiales de secours
DE102009006652A1 (de) 2009-01-29 2010-08-05 Pierburg Gmbh Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine
WO2017009065A1 (fr) * 2015-07-15 2017-01-19 Gebr. Becker Gmbh Compresseur à canaux latéraux ou pompe à vide à canaux latéraux muni de bandes d'étanchéité d'entrée entre deux canaux annulaires qui se trouvent de chaque côté d'un disque de rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020182270A1 (fr) * 2019-03-08 2020-09-17 Pierburg Gmbh Soufflante de canal latéral
DE102019130732A1 (de) * 2019-11-14 2021-05-20 Pierburg Gmbh Seitenkanalgebläse

Also Published As

Publication number Publication date
EP3728859A1 (fr) 2020-10-28

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