EP3029329B1 - Seitenkanalgebläse, insbesondere für ein fahrzeugheizgerät - Google Patents

Seitenkanalgebläse, insbesondere für ein fahrzeugheizgerät Download PDF

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Publication number
EP3029329B1
EP3029329B1 EP15196158.8A EP15196158A EP3029329B1 EP 3029329 B1 EP3029329 B1 EP 3029329B1 EP 15196158 A EP15196158 A EP 15196158A EP 3029329 B1 EP3029329 B1 EP 3029329B1
Authority
EP
European Patent Office
Prior art keywords
delivery
blower
channel
accordance
side channel
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
EP15196158.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3029329A1 (de
Inventor
Michael Humburg
Hermann Eppler
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
Eberspaecher Climate Control Systems GmbH and Co KG
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 Eberspaecher Climate Control Systems GmbH and Co KG filed Critical Eberspaecher Climate Control Systems GmbH and Co KG
Publication of EP3029329A1 publication Critical patent/EP3029329A1/de
Application granted granted Critical
Publication of EP3029329B1 publication Critical patent/EP3029329B1/de
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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal 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
    • 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/053—Shafts
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation

Definitions

  • the present invention relates to a side channel blower that can be used, for example, in a vehicle heater to promote the combustion air required for combustion with fuel from the environment of the vehicle heater in a combustion chamber, according to the preamble of claim 1.
  • a known side channel blower comprises a blower motor with a motor shaft, at the end regions in each case a conveying wheel is supported.
  • Each conveyor wheel covers a motor shaft or its axis of rotation annular surrounding, axially open conveyor channel.
  • the air to be conveyed may enter the delivery channel in a delivery medium inlet and may exit the delivery channel in a delivery medium exit provided generally near an interruption region.
  • a combustion air delivery rate adjustment is generally carried out by a variation of the rotational speed of the fan motor and thus also of the latter driven for rotation of the delivery wheel.
  • two conveying wheels acting in parallel with one another can be operated by a single blower motor.
  • Each of the conveyor wheels promotes a certain amount of the medium to be conveyed in the conveying operation, for example, the combustion air for a vehicle heater, so that by the addition of the two volume flows with respect to the operation of a single impeller double volume flow is achieved at much lower bainradrectiere. This reduces the power requirement of the fan as well as the noise emission.
  • a uniform conveying behavior of the two conveying regions is assisted by the fact that the first conveying channel and the second conveying channel with respect to a rotation axis substantially orthogonal plane of symmetry to each other are formed substantially mirror-symmetrical.
  • the first feed wheel and the second feed wheel are formed with respect to a mirror axis of rotation substantially orthogonal plane of symmetry substantially mirror-symmetrical.
  • the first conveying channel and the second conveying channel are arranged with angular offset from one another.
  • the motor shaft passes through a first shaft passage opening in the first blower housing area for coupling to the first conveyor wheel with its first end region, and / or the motor shaft with its second end region passes through a second shaft passage opening in the second fan housing area for coupling to the second conveyor wheel.
  • a compact design with very good space utilization can be obtained by the fact that the first axial side and the second axial side are axially oriented away from one another.
  • blower motor housing area is provided, wherein a stator and a rotor coupled to the motor shaft are arranged in the blower motor housing area.
  • a structurally simple embodiment with function merging of the different housing areas can be achieved in that a motor accommodating volume formed in the fan motor housing area is bounded axially by the first fan housing area and / or by the second fan housing area.
  • a conveying medium outlet space is formed in the blower housing, with the first conveying medium outlet and the second conveying medium outlet leading to the conveying medium outlet space.
  • An advantageous arrangement with regard to the volume flow delivery of the medium to be delivered and also with regard to the noise emission can provide that the first delivery medium outlet and the second delivery medium outlet are opposite one another in the axial direction.
  • the first impeller and the second impeller are arranged without angular offset from each other.
  • the conveyor wheels are also so relative to each other that they are positioned completely congruent in the circumferential direction. This leads to a substantially symmetrical conveying behavior of the two conveyor regions.
  • the first delivery wheel and the second delivery wheel are arranged at an angle offset from each other. In rotary operation, therefore, the two fan areas do not work in phase, so that there is the possibility of achieving destructive interference due to the phase-shifted noise emission.
  • the first delivery wheel may comprise a first delivery region surrounding the rotation axis in a ring-like manner with a plurality of circumferentially successive first delivery blades.
  • the second delivery wheel may comprise a second delivery region annularly surrounding the rotation axis and having a plurality of circumferentially sequential second delivery blades.
  • an arrangement pattern of the first conveying blades corresponds to an arrangement pattern of the second conveying blades.
  • the first conveying blades and the second conveying blades may be arranged with the same or varying circumferential distance from each other, which does not necessarily mean that the two conveyor wheels must be supported on the motor shaft so that in principle the same or mirror-symmetrical design of the same without angular offset to each other lie.
  • the compact design of the side channel blower according to the invention can be further supported by the fact that in the blower housing, a fluid inlet space is formed, wherein the first fluid inlet and the second fluid inlet lead away from the fluid inlet space.
  • a side channel blower is generally designated 8.
  • the side channel blower 8 which can be used, for example, for conveying combustion air to a fuel-operated vehicle heater, comprises a blower housing 10, which in the illustrated example is constructed with a first housing part 12 and a second housing part 14.
  • a blower housing 10 In the blower housing 10 is a generally designated 16 to be electrically driven blower motor with a stator 18 and a provided with a motor shaft 20 coupled rotor 22.
  • a blower motor housing portion 24 essentially accommodating the blower motor 16 comprises on the first housing part 12 and on the second housing part 14 respective substantially circular-cylindrical walls 26, 28 which are arranged concentrically to a rotational axis D of the blower motor 16 substantially and in the assembled state a motor housing volume of the blower housing 10 in common surround.
  • a first fan housing portion 30 is provided on the first housing part 12.
  • This comprises a first delivery channel 34 which is open to a first axial side 32 and surrounds the rotation axis D in a ring-like manner with a first delivery medium inlet 36 and a first delivery medium outlet 38.
  • the first delivery medium inlet 36 and the first delivery medium outlet 38 are through a first interruption region 40 separated from each other.
  • a first end region 44 of the motor shaft 20 passes through a shaft passage opening 42 in the first fan housing region 30, so that with this first end region 44 a first delivery wheel 46 can be coupled, for example by pressing.
  • the first feed wheel 46 comprises the first feed channel 34 opposite a first conveying region 48 having a plurality of circumferentially successive first impeller blades 50.
  • the first impeller 46 rotates in a direction indicated by an arrow P 1 rotation about the rotation axis D and thereby promotes medium to be conveyed, for example air, along the first delivery channel 34 from the first delivery medium inlet 36 to the first delivery medium outlet 38.
  • a second fan housing portion 52 is provided with a second delivery channel 56 which is open to a second axial side 54 and which surrounds the rotation axis D in a ring-like manner.
  • the second delivery channel 56 is assigned a second delivery medium inlet 58, a second delivery medium outlet 60 and an intermediate second interruption region 62.
  • a second axial end region 64 of the motor shaft 20 passes through a second shaft passage opening 66 in the second fan housing region 52, so that a second delivery wheel 68 is non-rotatably coupled thereto, for example, by being pressed onto the second end region 64 of the motor shaft 20 can.
  • the second feed wheel 68 comprises the second feed channel 56, axially opposite, a second feed section 70 having a plurality of circumferentially successive second feed vanes 72. Since the first feed wheel 46 and the second feed gear 68 are coupled to the motor shaft 20 for common rotation, the second rotates Conveyor 68 in a direction indicated by the arrow P 2 direction of rotation about the axis of rotation D, wherein this direction corresponds to the direction of rotation of the first feed wheel 46. In accordance with the conveying effect of the first delivery wheel 46, the second delivery wheel 68 also delivers air from the second delivery medium inlet 58 along the second delivery channel 56 to the second delivery medium outlet 60 during rotation operation.
  • a conveying medium inlet space 78 is formed in the blower housing 10 .
  • a e.g. inlet opening 80 formed in a connecting piece leads to the conveying medium inlet space 78.
  • the two conveying medium inlets 36, 58 are also open to the conveying medium inlet space 78, so that the air entering the conveying medium inlet space 78 via the conveying medium inlets 36, 58 into the first conveying channel 34 and the second conveying channel 56 can flow.
  • the two walls 74, 76 are arranged such that the conveying medium inlet space 78 surrounds the walls 26, 28 essentially providing the fan motor housing area 24, heat generated in the area of the fan motor 16 during conveying operation can flow from the direction of the two conveying channels 34, 56 Medium air to be dissipated.
  • a delivery medium 82 which is also substantially delimited by the wall 74 or delimited from the delivery medium inlet space 78, is formed.
  • This delivery medium outlet space 82 may be open on one side of the blower housing 10, where it may subsequently be positioned, for example, on a combustion chamber assembly of a vehicle heater.
  • the two delivery medium outlets 38, 60 lead the conveyed medium emerging from the delivery channels 34, 56 into the delivery medium outlet space 82, from which a unified, shared stream of the delivery medium can leave the blower housing 10.
  • the two delivery channels 34, 56 provided in the fan housing regions 30, 52 and open with respect to opposite axial sides 32, 54 are substantially mirror-symmetrical with respect to a plane of symmetry substantially orthogonal to the axis of rotation D.
  • these two conveying channels 34, 56 are not only mirror-symmetrical, so they have a mutually mirror-symmetrical geometric design, but they are positioned without angular offset about the rotation axis D with respect to each other, not according to the invention, so that the two delivery medium outlets 38th , 60 are completely overlapping one another in the circumferential direction and in the radial direction, and thus are positioned axially opposite one another.
  • the two conveyor wheels 46, 68 can also be constructed in such a way that they have an arrangement, which is essentially mirror-symmetrical with one another, in particular of their conveyor regions 48, 70. This means that in the case of both conveying wheels 46, 68, the first and second conveying blades 50, 72 can be arranged with the same circumferential spacing or the same variation of the circumferential spacing, for example according to a pseudo-random binary sequence.
  • the two thus fundamentally mirror-symmetrically constructed conveyor wheels 46, 68 can be mounted on the common motor shaft 20 so that they are supported without angular offset, so even with mirror-symmetrical positioning on the motor shaft 20.
  • the two conveyor wheels 46, 68 with angular offset from one another, which may correspond, for example, to half the angular spacing or the mean angular spacing of the immediately consecutive conveying blades 50, 72.
  • angular offset may correspond, for example, to half the angular spacing or the mean angular spacing of the immediately consecutive conveying blades 50, 72.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP15196158.8A 2014-12-05 2015-11-25 Seitenkanalgebläse, insbesondere für ein fahrzeugheizgerät Active EP3029329B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014224954.6A DE102014224954B4 (de) 2014-12-05 2014-12-05 Seitenkanalgebläse, insbesondere für ein Fahrzeugheizgerät

Publications (2)

Publication Number Publication Date
EP3029329A1 EP3029329A1 (de) 2016-06-08
EP3029329B1 true EP3029329B1 (de) 2018-01-10

Family

ID=54705409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15196158.8A Active EP3029329B1 (de) 2014-12-05 2015-11-25 Seitenkanalgebläse, insbesondere für ein fahrzeugheizgerät

Country Status (4)

Country Link
US (1) US10184480B2 (enrdf_load_stackoverflow)
EP (1) EP3029329B1 (enrdf_load_stackoverflow)
DE (1) DE102014224954B4 (enrdf_load_stackoverflow)
NO (1) NO2755958T3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018231892A1 (en) * 2017-06-15 2018-12-20 Seitz Michael W Universal fan unit for modular cleaning system for airborne dust
DE102021005466A1 (de) 2021-11-04 2023-05-04 Truma Gerätetechnik GmbH & Co. KG Vorrichtung zum Erhitzen einer Flüssigkeit und/oder zum Erwärmen von Luft sowie Seitenkanalgebläse

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US5692054A (en) * 1992-10-08 1997-11-25 Noise Cancellation Technologies, Inc. Multiple source self noise cancellation
DE202013005423U1 (de) * 2013-06-17 2013-07-02 Robert Bosch Gmbh Kühlanlage für Schienenfahrzeuge

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Publication number Priority date Publication date Assignee Title
JPS61261699A (ja) * 1985-05-15 1986-11-19 Nippon Denso Co Ltd 送風機
US5692054A (en) * 1992-10-08 1997-11-25 Noise Cancellation Technologies, Inc. Multiple source self noise cancellation
DE202013005423U1 (de) * 2013-06-17 2013-07-02 Robert Bosch Gmbh Kühlanlage für Schienenfahrzeuge

Also Published As

Publication number Publication date
EP3029329A1 (de) 2016-06-08
US20160160865A1 (en) 2016-06-09
DE102014224954A1 (de) 2016-06-09
US10184480B2 (en) 2019-01-22
DE102014224954B4 (de) 2019-10-24
NO2755958T3 (enrdf_load_stackoverflow) 2018-01-06

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