EP3571415A1 - Gebläse für einen verbrennungsmotor - Google Patents
Gebläse für einen verbrennungsmotorInfo
- Publication number
- EP3571415A1 EP3571415A1 EP17701666.4A EP17701666A EP3571415A1 EP 3571415 A1 EP3571415 A1 EP 3571415A1 EP 17701666 A EP17701666 A EP 17701666A EP 3571415 A1 EP3571415 A1 EP 3571415A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- blower
- internal combustion
- channel
- combustion engine
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000004804 winding Methods 0.000 abstract description 12
- 239000007921 spray Substances 0.000 abstract description 7
- 230000035515 penetration Effects 0.000 abstract description 2
- 238000005273 aeration Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/068—Mechanical details of the pump control unit
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/608—Aeration, ventilation, dehumidification or moisture removal of closed spaces
Definitions
- the invention relates to a blower for an internal combustion engine with an electric motor having a stator and a rotor which is fixed to a drive shaft, a housing which surrounds the electric motor, a delivery channel, which is formed in the housing, an intake manifold, the inlet channel limited and an outlet nozzle defining an outlet channel, an impeller which is mounted on the drive shaft, and via which fluid from the inlet channel via the conveying channel to the outlet channel is conveyed.
- blowers are for example used to promote secondary air in internal combustion engines, especially in gasoline engines, with which air is blown during the cold start phase for thermal afterburning in the exhaust system.
- hydrocarbons and carbon monoxide are reduced during the warm-up phase, since the air reacts exothermally with unburned exhaust gas components, which also supports the heating of the catalyst.
- Secondary air blowers are well known and are mostly designed as side channel blowers in recent years.
- Such a side channel blower as described for example in DE 10 2010 046 870 AI, usually has an axial inlet and a radial outlet, between which are designed as a delivery channel in the fan head side channels, which are arranged opposite to a driven impeller , by the rotation of the promotion from the inlet to the outlet takes place.
- a secondary air blower is additionally known, the intake manifold has two 90 ° elbow, so that a portion of the intake manifold extends parallel to the motor axis.
- the engine controller and an air mass meter via which an air flow in the intake manifold is measured, can be arranged in a common, separate housing, which is fastened to the intake manifold, wherein the electronics are connected via a cable to the stator windings of the motor.
- a blower with the features of the main claim 1. Characterized in that in the housing an electronics compartment is formed, in which a circuit board is arranged with electronic components, via which the electric motor is actuated, wherein the housing has an opening through which the electronics compartment is fluidically connected to the inlet channel, the pressure equalization via the inlet nozzle which is not in the area of the spray water during operation or during tests. In addition, it is ensured that a gas exchange takes place only with cleaned air, which is sucked through the nozzle, usually via a filter, so that in addition to avoiding condensation of the water contained in the air and excessive pressure fluctuations and damage by protective substances are avoided. Such a vent can be used both in a drive of the fan by an electronically commutated electric motor and brush motors.
- the electronics space limiting housing and the intake manifold on a common wall surface, in which the opening for connection of the inlet channel is formed with the electronics compartment. Accordingly, it is possible to dispense with additional components for producing the fluidic connection between the electronics compartment and the intake manifold. Instead, the pressure equalization can be done for example via a simple bore formed in the wall surface.
- the electronics compartment is arranged on a side of the electric motor which is axially opposite the impeller, and the intake stub extends at least along the axial length of the electric motor and the electronics compartment to the delivery channel.
- the intake manifold can simultaneously serve for heat dissipation by heat transfer through the wall surface between the sucked cold outside air and the windings of the stator and the electronics compartment.
- a gas-permeable membrane in both directions of flow is arranged in the opening, so that in particular dry gas can be exchanged, while possibly existing contaminants or water can not pass through the membrane and thus can not penetrate into the electronics compartment.
- the housing has a plurality of housing parts, which are arranged axially one above the other.
- the assembly can be done with the interposition of seals from a mounting side. This simplifies the manufacture of the blower.
- a preferred construction of the blower results when a first central housing part radially surrounds the electric motor and forms an axial section of the intake manifold, a second housing section closes the conveyor passage to the side opposite the electric motor, a third housing section radially surrounds the electronics compartment and an upstream side of the first housing section Section of the intake manifold forms and a fourth housing part closes the electronics compartment and forms an upstream to the third housing portion of the intake manifold.
- Such a housing division facilitates assembly, since no additional pipe sockets must be used for the production of the intake manifold.
- the individual parts of the blower remain easily accessible.
- both the heat dissipation from the stator and the ventilation and the heat dissipation from the electronics compartment can be easily made because common wall surfaces can be used. All components remain axially accessible and can be mounted or replaced.
- a bearing point of the drive shaft is formed on the third housing part, which is closed to the electronics compartment.
- the assembly of the electric motor remains simple, the shaft mounted with the rotor and then the storage can be completed by placing the third housing part.
- ribs are formed, through which the cold air flow around the surface of the inlet nozzle is increased, which in turn leads to improved heat dissipation from the stator.
- these ribs can be used to improve the flow of the impeller.
- blower according to the invention for an internal combustion engine is described with reference to a side channel blower, which is suitable for secondary air supply or activated carbon filter cleaning, and is shown in the figure.
- the figure shows a side view of a side channel blower according to the invention in a sectional view.
- the fan according to the invention has a fixed to a drive shaft 10 impeller 12 with impeller blades 14 which are displaceable via an electric motor 16 in rotation.
- the electric motor 16 in the present embodiment is an electronically commutated electric motor and consists of a stator 18, which has a wound on teeth of a stator 20 stator windings 22, and a rotor 24, are mounted in the magnets 26, which in a known manner with the stator windings 22nd to cooperate to generate a torque during energization of the stator windings 22.
- the rotor 24 is mounted on the drive shaft 10 so that it is also rotated upon rotation of the rotor 24 in rotation.
- the drive shaft 10 via two bearings 28, 30 is mounted, of which a first bearing 28 is disposed axially between the impeller 12 and the rotor 24 and a second bearing 30 at the end facing away from the impeller 12 of the drive shaft 10 on the opposite side of the rotor 24 is arranged.
- a bearing plate 32 In the radially inner of a bearing plate 32 is formed on an annular projection 34 of the bearing plate 32, a bearing receptacle 36 in which the first bearing 28 is received, and which has a central opening 38 through which the drive shaft 10 protrudes.
- the end shield 32 simultaneously defines a flow space of the fan in the direction of the electric motor 16 and is formed integrally with a first housing part 42 of a housing 44, which serves as a flow and motor housing.
- the first housing part 42 extends along a rear side of the impeller 12 and forms in the radially outer region of a first conveying channel 46 which is axially opposite the blades 14 of the impeller 12.
- This first housing part 42 is attached over its outer periphery to a housing 44 belonging to and serving as a blower head second housing part 48 which axially bounds the housing 44 of the side channel blower and in which a second delivery channel 40 is formed, with the exception of a breaker area over the circumference extends and how the first conveying channel 46 sucks in air via an inlet channel 50, which is conveyed via the two conveying channels 46, 40 to an outlet channel 52 which is formed in an outlet piece 54 extending tangentially from the first housing part 42.
- the first housing part 42 surrounds the electric motor 16 radially and is closed by a third housing part 56, which defines an electronics space 58 radially and the electric motor 16 axially, on the opposite side to the impeller 12.
- the second bearing 30 is arranged in a central second bearing 60, which is closed to the electronics compartment 58 by a bearing cap 61 and from which the third housing part 56 extends radially to side walls of the first housing part 42 and there on the first housing part 42 is attached.
- a fourth housing part 62 On the opposite axial side of the electronics compartment 58 is closed by a fourth housing part 62, which serves as a lid.
- Intake passage 50 is defined by an intake manifold 64 which extends along the axial length of stator 18 and electronics compartment 58 and has a common wall surface 66 with first housing member 42 surrounding stator 18 and third housing member 56 radially surrounding electronics compartment 58.
- portions of the intake stub 64 that lie one behind the other in the flow direction are formed integrally with the first, third and fourth housing parts 42, 56, 62.
- the common wall surface 66 arranged between the stator 18 or the electronics chamber 58 and the inlet channel 50 thus serves on the one hand as a boundary surface of the first and the third housing part 42, 56 and on the other hand as a boundary surface of the inlet channel 50.
- the stator lamination 20 is pressed into the first housing part 42 and lies correspondingly fully over its entire length against an inner wall 68 of the first housing part 42.
- the stator windings 22 are located on bobbins 70 made of plastic.
- an opening 74 is formed according to the invention, via which the electronics compartment 58 is fluidly connected to the inlet channel 50.
- the heat-generating, arranged on a board 76 electronic components 78 for controlling the blower, which is arranged in the electronics compartment 58, thus can be supplied with air from the inlet channel 50 and air can be discharged from the electronics compartment 58 into the inlet channel 50.
- This possible ventilation and venting of the electronics compartment 58 via the opening 74 means that no additional pressure can build up in the electronics compartment 58 with increasing temperatures, which can lead to condensation of water and increased pneumatic loading of the components. Accordingly, the life of the electronics can be increased.
- the air which is conveyed via the intake port 64 to the delivery channel 46, 40, causes active cooling of both the stator 18 and the stator windings 22 and the power electronics components 78 and the bearings 28, 30 upon rotation of the impeller 12 the electronics 78 heat dissipated directly into the intake manifold 64. Also, the heat dissipation from the bearings 28, 30 and the stator windings 22, from which the heat via the stator plate 20 to the housing 44 and the common wall surface 66, where the air flow for active heat dissipation over, is derived.
- ribs 80 extending into the inlet channel 50 are formed in the interior of the intake stub 64, by means of which the surface serving for heat transfer is enlarged. Also on the fourth housing part 62 outwardly facing ribs 82 are formed so that in addition to the fourth housing part 62 heat from the electronics compartment 58 can be dissipated.
- the arrangement of the opening 74 in the wall surface 66 between the electronics compartment 58 and the intake manifold 64 has the great advantage that the electronics compartment is reliably protected from penetrating spray water and other dirty water.
- neither waste water produced during operation can enter the inlet channel 50, into which fresh air is sucked in via a filter, nor can sprays flow into the electronics compartment 58 during tests with high-pressure cleaners or salt spray tests, since there is no opening to the surroundings and the inlet to the inlet channel 50 can be arranged so that even with a leaky filter no water along the inlet channel to the fan can flow.
- a gas-permeable and dirt-repellent and water-repellent membrane 84 can still be mounted in the opening 74. So is a reliable ventilation of the Electronics space 58 without additional components made possible by the electronics is reliably protected from harmful substances.
- blowers can be used for various applications.
- other types of blowers such as radial blowers or the like can be used.
- various design variants compared to the embodiment are conceivable, such as a different connection of the bearings to the surrounding housing or the use of another housing division.
- the drive of such a blower can be done both by electronically commutated electric motors and brush motors, both internal rotor and external rotor can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2017/051183 WO2018133943A1 (de) | 2017-01-20 | 2017-01-20 | Gebläse für einen verbrennungsmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3571415A1 true EP3571415A1 (de) | 2019-11-27 |
EP3571415B1 EP3571415B1 (de) | 2023-07-12 |
Family
ID=57906606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17701666.4A Active EP3571415B1 (de) | 2017-01-20 | 2017-01-20 | Gebläse für einen verbrennungsmotor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3571415B1 (de) |
CN (1) | CN110546388B (de) |
WO (1) | WO2018133943A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3136512B1 (fr) * | 2022-06-14 | 2024-04-26 | Psa Automobiles Sa | Systeme de pompe a air additionnelle de depollution d’un moteur thermique equipe d’un support |
WO2024002469A1 (de) * | 2022-06-28 | 2024-01-04 | Pierburg Gmbh | Gebläse |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54150708A (en) * | 1978-05-18 | 1979-11-27 | Matsushita Electric Ind Co Ltd | Multi-plate blower |
US5049770A (en) * | 1990-03-26 | 1991-09-17 | General Motors Corporation | Electric motor-driven impeller-type air pump |
DE4244458A1 (en) * | 1991-12-27 | 1993-07-01 | Mitsubishi Electric Corp | Electric pump supplying by=pass air to vehicle catalytic converters - circulates air inside motor case for cooling of motor, and has noise absorbers in air suction port |
US6129524A (en) * | 1998-12-07 | 2000-10-10 | Turbodyne Systems, Inc. | Motor-driven centrifugal air compressor with axial airflow |
US6393208B1 (en) * | 2000-08-14 | 2002-05-21 | Daniel M. Nosenchuck | Compressor with integrated impeller and motor |
JP2007218163A (ja) * | 2006-02-16 | 2007-08-30 | Nidec Sankyo Corp | ポンプ及びポンプシステム |
DE102011006487B4 (de) * | 2011-03-31 | 2014-05-08 | Eberspächer Climate Control Systems GmbH & Co. KG | Gebläse, insbesondere Verbrennungsluftgebläse für ein Fahrzeugheizgerät |
GB2504415B (en) * | 2011-08-26 | 2014-08-13 | Dyson Technology Ltd | Turbomachine |
DE102015100021A1 (de) * | 2014-01-10 | 2015-07-16 | Johnson Electric S.A. | Spülmaschine und Gebläse |
KR102124513B1 (ko) * | 2014-01-29 | 2020-06-18 | 삼성전자주식회사 | 모터 |
DE102015114783B3 (de) * | 2015-09-03 | 2016-09-22 | Nidec Gpm Gmbh | Elektrische Kühlmittelpumpe mit strömungsgekühlter Steuerschaltung |
-
2017
- 2017-01-20 WO PCT/EP2017/051183 patent/WO2018133943A1/de unknown
- 2017-01-20 CN CN201780073882.6A patent/CN110546388B/zh active Active
- 2017-01-20 EP EP17701666.4A patent/EP3571415B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
WO2018133943A9 (de) | 2019-07-18 |
CN110546388A (zh) | 2019-12-06 |
EP3571415B1 (de) | 2023-07-12 |
WO2018133943A1 (de) | 2018-07-26 |
CN110546388B (zh) | 2022-02-11 |
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