EP2386764A2 - Ensemble ventilateur pour véhicules - Google Patents
Ensemble ventilateur pour véhicules Download PDFInfo
- Publication number
- EP2386764A2 EP2386764A2 EP11165462A EP11165462A EP2386764A2 EP 2386764 A2 EP2386764 A2 EP 2386764A2 EP 11165462 A EP11165462 A EP 11165462A EP 11165462 A EP11165462 A EP 11165462A EP 2386764 A2 EP2386764 A2 EP 2386764A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- rotation
- fan
- toothed ring
- radiator
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
Images
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
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
Definitions
- the present invention relates to a fan assembly for cooling a radiator, a radiator-condenser assembly, or a radiator-condenser-intercooler assembly of a vehicle.
- a fan assembly for cooling a radiator or a radiator-condenser assembly of a vehicle comprises a casing, having a through opening, and a motor-fan assembly, carried by the casing and designed to generate a flow of air through said opening.
- the fan is generally of an axial type and comprises a hub, rotatable about an axis of rotation parallel to the direction of the flow, and a plurality of blades, which extend radially from said hub.
- the object of the present invention is to provide an improved geometry of the toothed ring surrounding the fan that, as compared to solutions of a known type, will reduce the tonal component of the noise generated by the fan without altering the efficiency of the system in terms of air-delivery capacity and head.
- the fan assembly 10 is a fan assembly designed to perform cooling of a radiator, of a radiator-condenser assembly, or of a radiator-condenser-intercooler assembly of a vehicle.
- the fan assembly 10 comprises a casing 12 preferably made of injection-moulded plastic material having a shape designed to convey a flow of air through a radiator, a radiator-condenser assembly, or a radiator-condenser-intercooler assembly.
- the casing 12 has a through opening 14 and a support 16 located at the centre of the opening 14.
- the support 16 is connected to the edges of the opening 14 by means of radial arms 18.
- the support 16 carries a motor-fan assembly designated by 20 in Figure 1 .
- the motor-fan assembly 20 comprises an axial fan 22 made of injection-moulded plastic material.
- the fan 22 comprises a hub 24, extending from which is a plurality of blades 26.
- the fan 22 is rotatable with respect to the support 16 about an axis of rotation designated by X in Figure 4 .
- the fan 22 can be provided with an external ring 28 fixed with respect to the outer end of the blades 26.
- the external ring 28, if present, is constituted by a cylindrical wall 30 sharing the axis of rotation X and a radial wall 32 contained in a plane orthogonal with respect to the axis of rotation X.
- the casing 12 comprises a toothed ring 34 fixed or else formed integrally with the casing and located along the edge of the opening 14.
- the toothed ring 34 surrounds the fan 22 and is provided with a plurality of teeth 36 that follow one another with a constant pitch in a circumferential direction.
- the teeth 36 can extend in a uniform way along a circumference or else can extend on arcs of circumference that are set at angular distances apart.
- the toothed ring 34 has a front surface 38 that is cylindrical or shaped like a truncated cone, shares the axis of rotation X, and defines the walls of the teeth 36 facing the fan.
- the wall 38 is set at a constant or variable distance in the direction of the axis X from the outer end of the fan 22 or, if present, from the cylindrical wall 30 of the external ring 28.
- the toothed ring 34 moreover has a side wall 40 that forms the sides of the teeth 36.
- the distance in a direction parallel to the axis of rotation X between the side wall 40 and a plane orthogonal to the axis of rotation X varies in a periodic way in the circumferential direction.
- the teeth 36 project in a direction parallel to the axis of rotation X with respect to a radial plane passing through the base of said teeth.
- the teeth 36 can have an undulated profile as illustrated in the figures or else can have a sawtooth shape or a shape of some other type.
- the length L of an arc of a circle with centre on the axis of rotation X of the fan 22 and passing through each tooth 36 remains constant for each radius comprised between the radii R1 and R2, where R1 and R2 are the internal radius and the external radius of the circumferential surfaces of the teeth 36.
- the axial arrangement of the teeth 36 enables provision of a periodic sequence of cavities.
- the purpose of the toothed ring 34 is to provide a circumferential coupling to the fan of a sequence of volumes designed to dissipate the radial component of the fluctuations of lift generated by the blades.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO2010A000393A IT1399992B1 (it) | 2010-05-11 | 2010-05-11 | Gruppo ventilatore per veicoli |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2386764A2 true EP2386764A2 (fr) | 2011-11-16 |
EP2386764A3 EP2386764A3 (fr) | 2017-11-15 |
EP2386764B1 EP2386764B1 (fr) | 2019-12-04 |
Family
ID=43301980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11165462.0A Active EP2386764B1 (fr) | 2010-05-11 | 2011-05-10 | Ensemble ventilateur pour véhicules |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2386764B1 (fr) |
IT (1) | IT1399992B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012207552A1 (de) * | 2011-05-13 | 2012-11-15 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Kühlerlüftermodul |
WO2020169546A1 (fr) * | 2019-02-18 | 2020-08-27 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Ventilateur de radiateur d'un véhicule à moteur |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6863496B2 (en) | 2002-02-27 | 2005-03-08 | Halla Climate Control Corporation | Fan and shroud assembly |
US7481615B2 (en) | 2005-03-26 | 2009-01-27 | Halla Climate Control Corp. | Fan and shroud assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6874990B2 (en) * | 2003-01-29 | 2005-04-05 | Siemens Vdo Automotive Inc. | Integral tip seal in a fan-shroud structure |
EP1515000B1 (fr) * | 2003-09-09 | 2016-03-09 | Alstom Technology Ltd | Aubage d'une turbomachine avec un carenage contouré |
-
2010
- 2010-05-11 IT ITTO2010A000393A patent/IT1399992B1/it active
-
2011
- 2011-05-10 EP EP11165462.0A patent/EP2386764B1/fr active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6863496B2 (en) | 2002-02-27 | 2005-03-08 | Halla Climate Control Corporation | Fan and shroud assembly |
US7481615B2 (en) | 2005-03-26 | 2009-01-27 | Halla Climate Control Corp. | Fan and shroud assembly |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012207552A1 (de) * | 2011-05-13 | 2012-11-15 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Kühlerlüftermodul |
US9714666B2 (en) | 2011-05-13 | 2017-07-25 | Brose Fahrzeugteile Gmbh & Co. Kg | Cooling fan module |
WO2020169546A1 (fr) * | 2019-02-18 | 2020-08-27 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Ventilateur de radiateur d'un véhicule à moteur |
Also Published As
Publication number | Publication date |
---|---|
EP2386764A3 (fr) | 2017-11-15 |
IT1399992B1 (it) | 2013-05-09 |
EP2386764B1 (fr) | 2019-12-04 |
ITTO20100393A1 (it) | 2011-11-12 |
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