WO2007066001A1 - Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur - Google Patents
Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur Download PDFInfo
- Publication number
- WO2007066001A1 WO2007066001A1 PCT/FR2006/002657 FR2006002657W WO2007066001A1 WO 2007066001 A1 WO2007066001 A1 WO 2007066001A1 FR 2006002657 W FR2006002657 W FR 2006002657W WO 2007066001 A1 WO2007066001 A1 WO 2007066001A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- deflector
- retarder
- radial
- faces
- fan
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
Definitions
- the present invention relates to a deflector intended to be arranged coaxially with respect to a rotating shaft of an electromagnetic retarder, as well as an electromagnetic retarder comprising such a deflector.
- An electromagnetic retarder comprises means for creating a current of a gaseous fluid, typically a stream of air, for cooling the induction coils arranged in a crown on a rotor of the retarder and inside a stator which surrounds the rotor and is intended to be mounted on a chassis of a vehicle.
- a gaseous fluid typically a stream of air
- One of these means is a fan described for example in documents EP-A-0331559 and FR-A-1467310.
- the fan In electromagnetic retarders, the fan is often also used to cool other heating elements, for example electronic circuits. Some retarders have two fans; they are usually attached to a retarder shaft. Thus, when a retarder enters into operation, the fan or fans create a current of air which flows towards the coils of the retarder and towards the electronic circuits to cool them. This cooling prevents a drop in performance of the hot retarder. Overall, thanks to the increase in performance, a fan contributes to creating up to ten percent of the total retarding resistive torque generated by the retarder. However, the use of such fans has limits.
- the rotor shaft constantly rotates.
- the fan drive therefore generates significant mechanical power consumption, even when the retarder is not in operation.
- the fan consumes unnecessary mechanical torque, which translates into unnecessary consumption of fuel, generally diesel. This also applies when the retarder is connected to the input shaft of the rear axle of a motor vehicle.
- the fan arranged at the outlet must be a radial fan due to the presence of the mechanical group (rear axle, gearbox or other) to which the retarder output shaft is connected. Because the use of an axial fan in this location would cause very significant pressure losses and greatly reduce the air flow passing through the interior of the retarder.
- the object of the invention is to overcome the various drawbacks mentioned above.
- the invention must propose a solution that would, if possible, to have a robust, simple and compact and which when the solution had to include additional rooms compared to fans used before the invention, allows them to be housed inside the retarder or, at the very least, so that they do not contribute to an increase in the size of the retarder.
- the invention must propose a solution making it possible to improve the performance of the retarder, in particular by reducing the no-load losses.
- the invention must facilitate the cooling of the coils, while limiting the consumption of a torque on the shaft, in particular during periods of non-use of the retarder.
- the object of the invention is achieved with a deflector for an electromagnetic retarder comprising a rotating shaft with a fan for circulating a cooling gaseous fluid on induction coils intended to generate, on command, eddy currents in a surrounding stator the rotating shaft and the induction coils.
- the deflector comprises a body provided with at least one deflection face, called a radial deflection face, intended to cause the gaseous fluid to be discharged from the retarder, the body being shaped to allow the deflector to be arranged in such a way non-rotating and coaxially with respect to the retarder shaft.
- the invention therefore proposes to use a stationary mechanical interface and to arrange it in the rear part of the retarder, seen in the direction of the flow of the cooling gaseous fluid, that is to say approximately at the place where a radial fan is arranged in the retarders used before the invention.
- the arrangement of stationary radial return means at the rear of an electromagnetic retarder cleverly uses the design of the retarder.
- the retarder comprises a rotating shaft intended to be hooked to a main or secondary output shaft of a gearbox, to an input shaft of a bridge rear of a motor vehicle to a rear axle of ⁇ a trailer or semi-trailer or a gearbox speed multiplication, and a rotor fixed in rotation with the rotating shaft, of induction coils arranged in a crown on the rotor and inside a stator surrounding the rotor and intended to be mounted on a chassis of the vehicle, a generator mounted on one end of the rotating shaft of the rotor and supplying the induction coils, and an axially acting fan for bringing a cooling gaseous fluid inside the retarder and for circulating it on the induction coils.
- the outlet of the gaseous fluid is assisted by means giving the flow of the gaseous fluid a transverse orientation relative to the axis of the retarder.
- the invention therefore implements means which are permanently stationary, which therefore do not need any control means and whose shape can be optimized so as to reduce the noise generated by friction and the turbulence of the gaseous fluid cooling along the walls.
- the invention thus makes it possible to increase the performance of the retarder by better control of the cooling of the coils but also by good control of the fuel consumption of the vehicle when the retarder is not used, ie 85% of its time.
- the solution that the invention proposes is simple to integrate into the design of a retarder, is not bulky, is light and very economical.
- the deflector body is an individual part: the deflector body consists of a rear flange of the retarder;
- the body of the deflector is formed from flat plates
- the body of the deflector has a generally frustoconical shape
- the deflector comprises two radial deflection faces each disposed on approximately one half of the body of the deflector;
- the deflector comprises three radial return faces, one of which is disposed on approximately a first half of the body of the deflector and the other two of which are arranged together on approximately a second half of the body of the deflector;
- the radial return faces each have approximately the shape of a gutter in an arc of a circle
- the radial return faces each have approximately the shape of a gutter in a helical arch
- the radial return faces are formed by elements added or formed in one piece with the body of the deflector and having the general shape of blades of a centrifugal or helico-centrifugal fan.
- the object of the invention is also achieved with an electromagnetic retarder comprising a deflector having the characteristics described above.
- FIG. 1 is a perspective view, with local cutaway, of an electromagnetic raitor comprising several fans mounted on a rotating shaft of the retarder secured to an output shaft of a gearbox,
- FIG. 2 shows a deflector according to an embodiment of the invention in a perspective view
- FIG. 3 shows a deflector according to an alternative embodiment of the invention in a front view
- FIG. 4 shows the deflector of FIG. 3 in a sectional view along a line of strokes IV-IV of FIG. 3,
- FIG. 5 shows the deflector of FIG. 3 in a perspective view with a cutout
- FIG. 6 shows the arrangement of a deflector of the invention with respect to the coils of the rotor of a retarder. .
- Figure 1 recalls the general structure of an electromagnetic retarder with two fans mounted on a rotating shaft of the retarder.
- the electromagnetic retarder is shown in a perspective view with partial axial section and as being mounted on a gearbox 105 of a motor vehicle.
- This retarder is intended to slow down a transmission shaft of the vehicle and more particularly here the output shaft of the gearbox 105, here via a speed multiplier described for example in the document FR-A-2861912 to which one is carry forward, generating a magnetic field with alternating distribution in a ferromagnetic part 121 of a stator 110 which also includes a cooling jacket 103 in a helical shape in a single turn.
- the jacket 103 is provided with an intake duct C and an exhaust duct D.
- the jacket 103 defines, with the internal part 121, a chamber inside which circulates a cooling fluid, here that the engine of the vehicle.
- the reaser comprises a rotating shaft 102 attached to the output shaft of the gearbox 105 and a rotor 101 integral in rotation with the rotating shaft 102.
- Induction coils 107 are arranged in a crown on the rotor 101 and at the interior of the stator 110 surrounding the rotor 101.
- the stator 110 which comprises the cooling water jacket 103 and the internal part 121, is intended to be mounted on a chassis of the vehicle.
- the retarder also includes a generator 106 mounted on one end of the rotating shaft 102 of the rotor 101, a rotor (not visible) constituting an armature of the generator 106 and two fans 108 and 109 for circulating a gaseous cooling fluid, generally of the air, on the induction coils 107, therefore for cooling the rotor 101.
- the fan 109 is axially acting while the fan 108 is radially acting, that is to say of the centrifugal type, the blades these two fans being configured accordingly.
- the generator 106 supplies the excitation energy necessary to generate the alternating distribution magnetic field.
- This generator 106 comprises an inductor stator formed by a ring of coils or windings 104 of electric wires around cores constituting multiple magnetic poles with alternating polarities, and the rotor.
- the inductor stator surrounds the induced rotor with a small air gap.
- a rectifier bridge (not visible) is interposed between the induced rotor of the generator 106 and the coils, as described in documents EP-A-0331559 and FR-A-1467310.
- the coils 104 are supplied by a direct current source such as a vehicle battery equipped with the retarder.
- the intensity of this current is adjusted as a function of the resistive retarding torque that the retarder must produce.
- the intensity of the induction current of the coils 104 the intensity of the electric current generated by the generator 106 is regulated, and, by this finally, the intensity of the eddy currents which generate slowdown resisting torque and heating, generated in the ferromagnetic part 121 of the stator 110 of the retarder.
- the generation of the electric supply current necessary for the generation of the eddy currents, by a generator 106 integrated in the retarder brings a double advantage.
- the first advantage consists in a very low supply of external electrical energy taken from the vehicle battery, for example of the order of 20 to 30% of the total energy required.
- the second advantage is that the generation of electric current by the generator itself consumes a certain mechanical energy taken from the shaft to be slowed down.
- the excitation current generated by the generator 106 feeds the induction coils 107 of the rotor 101 of the retarder to generate a magnetic field.
- the coils 107 are formed by windings of electric wires around cores forming integral parts of the rotor 101.
- the cores belong to the body of the rotor 101 made of ferromagnetic material and form salient poles.
- the magnetic field induces the stator 110 of the retarder and generates eddy currents there, in particular in the internal part 121 of the stator 110 made of a ferromagnetic material.
- the eddy currents being opposed, by their effects, to the cause which gives them meaning, namely the rotational movement of the rotor; the rotational movement of the rotor 101 thus generates a reverse torque, therefore a resisting torque for slowing down the shaft 102.
- the rear fan is replaced by a deflector 1 ( Figure 2) or 20 ( Figures 3 and following) and the perforated rear support 114 is shaped accordingly.
- the rear support 114 of FIG. 1 is thus replaced by an outlet part.
- This outlet part is made of moldable material, for example based on aluminum such as the cooling jacket 103.
- This part is shaped at the same time to constitute an outlet flange.
- FIG. 2 shows a deflector 1 according to an embodiment of the invention in a perspective view.
- the deflector 1 is integrated in an outlet flange 10 of an electromagnetic retarder, that is to say formed in one piece with it, and comprises a body 2 provided with three return faces 3 to 5, called radial return faces, arranged around an opening 6.
- the opening 6 is central, while the radial return faces 3 to 5 are intended to evacuate the gaseous fluid radially from the raisisseur, for example through radial outlet openings 7 formed in the body 2. Thanks to the opening 6, the body 2 can be arranged coaxially with respect to the shaft 102 of the raisisseur.
- the opening 6 is shaped to cooperate with, or form part of, a bearing for the shaft 102 which thus passes through the deflector without making it integral in rotation with the shaft 102.
- the deflector can be mounted stationary relative to the outlet flange or, as in the embodiment shown, be an integral part of the outlet flange.
- the deflector shown in FIG. 2 has three return faces referenced 3, 4 and 5 respectively. Each of these return faces is shaped to redirect a corresponding part of the flow of cooling gaseous fluid axially passing through the interior of the retarder, to give it a radial orientation towards radial outlet openings of the flange, for example the outlet openings 7. While the return face 3 occupies approximately half of the space around the opening 6, the two return faces 4, 5 each occupies about a quarter of this space. This is due to the presence of a protrusion 11 in the flange 10, oriented towards the inside of the retarder.
- Each of the return faces 3, 4 and 5 has the general shape of a gutter formed in a helical arch. However, alternatively, these faces could each have the shape of a toroidal arch. The main thing is to conform the return faces 3, 4 and 5 so that they can reorient the flow of gaseous fluid relatively gently, that is to say not suddenly, to avoid mechanical losses as much as possible.
- the body 2 - outlet flange 10 assembly is obtained here by molding of aluminum-based material and we see in 30 four ears. These ears 30 are intended to be drilled for the formation of holes for the passage of fixing members, such as screws, for fixing the cooling jacket 103 to this assembly.
- the assembly also has other holes (not visible in the drawings) for fixing it on the casing of the gearbox 105.
- the number of ears 30 depends on the applications.
- the outlet outlets 7 are formed in two lateral edges 31, 32 of axial orientation, each edge 31, 32 connecting two ears 30 to one another. There are also provided upper 34 and lower 33 partitions lightened by recesses.
- the upper partition 34 is in two parts, the protrusion 11 being interposed between the two parts.
- the protuberance 11 is due here to the presence of a speed multiplier interposed between the shaft 102 and a secondary output shaft of the gearbox 105. More specifically, this speed multiplier comprises gears of which a first is mounted in the protrusion 11. Another gear is provided. This gear meshes with the first gear and engages with the grooved end of the shaft 102, which passes through the opening 6 delimited by a first sleeve or internal sleeve 35. This sleeve 35 is connected by a web 37 of tortuous shape to a second sleeve or external sleeve 36 extending axially the return faces 3 to 5. The web 37 and the sleeves 35, 36 are also visible in FIGS. 4 to 6.
- junctions 23 each connect one of the flanges 31, 32 to the external sleeve 36.
- the junctions 23 are partitions between the return face 3 and respectively the return face 4 and the return face 5, the return faces 4 and 5 being separated from each other by the protrusion 11. Thus, it is formed of the blind cavities delimited by the return faces 3 to 5, the external sleeve 36, the flanges 31, 32, the partitions 34, 33 and the junctions 23, as visible in FIG. 2.
- the return faces 3 to 5 are generally curved to return the air to the openings 7.
- the number of return faces depends on the applications. Thus, in other examples, this number of faces is different from three, for example from four or two. To do this in one embodiment, the junctions are offset.
- Figure 3 shows an alternative embodiment of a deflector according to the invention.
- the deflector 20 corresponds to the deflector 1 insofar as it is integrated in an outlet flange 10 of an electromagnetic retarder, that is to say formed in one piece with it, and comprises a body 2 with a opening 6 thanks to which the body 2 can be arranged coaxially with respect to the shaft 102 of the retarder, and with radial outlet openings 7 visible in FIGS. 4 and 5.
- the deflector 20 differs from the deflector 1 in that the body 2 is provided with two radial return faces 21 and 22 arranged around the opening 6 and intended to evacuate the gaseous fluid radially from the retarder, for example through the radial outlet openings 7.
- the two return faces 21, 22 each occupy approximately half of the return space around the opening 6, that is to say they each have the general shape of a hoop in a semicircle.
- junctions 23A, 23B which stand between the ends of the two return faces 21, 22 are located in areas of the flange where it there are no outlet openings 7.
- the junctions 23A, 23B each connect one of the partitions 33, 34 to the outer sleeve 36.
- the junction 23A is a partition between the lower parts (according to the representation of the Figures 3 and 5) return faces 21 and 22 and the junction 23B is a partition between the upper parts (still in the direction of the representation of Figures 3 and 5) of the return faces 21 and 22.
- the junction 23B is additionally located in front of the projection 11 without this significantly affecting the efficiency of the deflector 20.
- it is formed of the blind cavities delimited by the return faces 21, 22, the external sleeve 36, the flanges 31, 32, the partitions 34, 33 and the junctions 23A, 23B, as visible in Figures 3 and 5.
- Figure 4 shows, in the form of an axial section along the line IV-IV of Figure 3, the deflector 20 of Figure 3.
- This sectional view shows more particularly the curved shape of the return faces 21, 22 without which the flow of gaseous fluid would land frontally on the outlet flange 10.
- FIG. 5 shows the deflector 20 of FIG. 3 in a perspective view with a partial cut-out to show more particularly the curved shape of the return walls 21, 22 of the deflector 20.
- FIG. 6 represents the deflector 20 together with the induction coils 107 of the rotor 101 of the retarder.
- This figure shows more particularly that the return faces 21, 22 are arranged in axial extension of the coils 107 and that the flow of cooling gaseous fluid therefore arrives, in an axial direction, on these return faces to be reoriented radially outwards from the retarder, namely mainly through the outlet openings 7.
- the present invention is not limited to the embodiments described.
- the generator 106 can be replaced by a generator with brushes scraping on slip rings connected by wire connections to the coils 107.
- the fan 109 can be a fan with at least two stages making it possible to improve the performance of the fan and to reduce the no-load losses. Such a fan facilitates the cooling of the coils, while limiting the consumption of a torque on the shaft, especially during periods of non-use of the retarder.
- such a fan comprises a hub and at least two sets of blades arranged radially around the hub.
- the first set of blades is arranged directly around the hub and forms a first stage of the fan, and the other set or blades are arranged around the first set of blades and successively form, towards the outside of the fan, a second stage, a third floor etc. fan, each stage having a number of blades greater than that of the lower stage.
- the design of a fan with at least two stages also makes it possible to optimize the efficiency of the fan by varying the inclination of the blades from the center to the periphery.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Motor Or Generator Cooling System (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/090,436 US20090174294A1 (en) | 2005-12-05 | 2006-12-05 | Deflector for an electromagnetic retarder and electromagnetic retarder including one such deflector |
| MX2008007325A MX2008007325A (es) | 2005-12-05 | 2006-12-05 | Deflector para un desacelerador electromagnetico y desacelerador electromagnetico que comprende dicho deflector. |
| EP06841864A EP1958317A1 (fr) | 2005-12-05 | 2006-12-05 | Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur |
| BRPI0618439A BRPI0618439A2 (pt) | 2005-12-05 | 2006-12-05 | defletor para um desacelerador eletromagnético, e, desacelerador eletromagnético |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0553726 | 2005-12-05 | ||
| FR0553726A FR2894409B1 (fr) | 2005-12-05 | 2005-12-05 | Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007066001A1 true WO2007066001A1 (fr) | 2007-06-14 |
Family
ID=36952406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2006/002657 Ceased WO2007066001A1 (fr) | 2005-12-05 | 2006-12-05 | Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090174294A1 (fr) |
| EP (1) | EP1958317A1 (fr) |
| CN (1) | CN101322300A (fr) |
| BR (1) | BRPI0618439A2 (fr) |
| FR (1) | FR2894409B1 (fr) |
| MX (1) | MX2008007325A (fr) |
| WO (1) | WO2007066001A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI517782B (zh) * | 2011-11-11 | 2016-01-11 | 華碩電腦股份有限公司 | 散熱模組 |
| CN110460216B (zh) * | 2018-05-07 | 2024-08-09 | 迈格钠磁动力股份有限公司 | 一种摆臂式车用液冷盘式永磁涡流柔性缓速器 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE531006A (fr) * | ||||
| GB540354A (en) * | 1940-05-04 | 1941-10-14 | Martin Phillip Winther | Improvements in electrical apparatus of the eddy current type |
| GB1173210A (en) * | 1966-12-14 | 1969-12-03 | Bosch Gmbh Robert | Improvements in Power Tools |
| JPS5941169A (ja) * | 1982-08-30 | 1984-03-07 | Hino Motors Ltd | リタ−ダ |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734604A (en) * | 1986-08-01 | 1988-03-29 | Cuisinarts, Inc. | Friction braking system and apparatus for appliance induction motor drive |
| US6703754B1 (en) * | 2001-10-01 | 2004-03-09 | Ametek, Inc. | Electric motor and brush retaining assembly |
| FR2847085B1 (fr) * | 2002-10-28 | 2005-03-04 | Valeo Equip Electr Moteur | Dispositif de refroidissement de l'electronique de puissance integree a l'arriere d'un alternateur ou d'un alterno-demarreur |
-
2005
- 2005-12-05 FR FR0553726A patent/FR2894409B1/fr not_active Expired - Fee Related
-
2006
- 2006-12-05 BR BRPI0618439A patent/BRPI0618439A2/pt not_active IP Right Cessation
- 2006-12-05 US US12/090,436 patent/US20090174294A1/en not_active Abandoned
- 2006-12-05 MX MX2008007325A patent/MX2008007325A/es unknown
- 2006-12-05 CN CNA2006800457612A patent/CN101322300A/zh active Pending
- 2006-12-05 WO PCT/FR2006/002657 patent/WO2007066001A1/fr not_active Ceased
- 2006-12-05 EP EP06841864A patent/EP1958317A1/fr not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE531006A (fr) * | ||||
| GB540354A (en) * | 1940-05-04 | 1941-10-14 | Martin Phillip Winther | Improvements in electrical apparatus of the eddy current type |
| GB1173210A (en) * | 1966-12-14 | 1969-12-03 | Bosch Gmbh Robert | Improvements in Power Tools |
| JPS5941169A (ja) * | 1982-08-30 | 1984-03-07 | Hino Motors Ltd | リタ−ダ |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 008, no. 131 (E - 251) 19 June 1984 (1984-06-19) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101322300A (zh) | 2008-12-10 |
| US20090174294A1 (en) | 2009-07-09 |
| BRPI0618439A2 (pt) | 2016-11-22 |
| EP1958317A1 (fr) | 2008-08-20 |
| FR2894409B1 (fr) | 2008-06-06 |
| MX2008007325A (es) | 2008-09-23 |
| FR2894409A1 (fr) | 2007-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1695431A1 (fr) | Ralentisseur electromagnetique comportant des moyens pour assurer une ventilation | |
| EP1784908A1 (fr) | Chemise de refroidissement pour une machine rotative et machine rotative comportant une telle chemise de refroidissement | |
| EP1293026B1 (fr) | Ventilateur pour machine electrique tournante | |
| EP2873139B1 (fr) | Machine électrique tournante pour véhicule automobile | |
| FR2835111A1 (fr) | Circulation pour un alternateur refroidi par un liquide | |
| WO2020115417A1 (fr) | Moteur electrique intelligent compact | |
| EP1351367A1 (fr) | Machine électrique à stator et/ou rotor modulaire et échangeur de chaleur de véhicule automobile comprenant une telle machine | |
| FR2836761A1 (fr) | Alternateur refroidi par liquide | |
| EP1878105A1 (fr) | Ventilateur debrayable pour un ralentisseur electromagnetique | |
| EP1958317A1 (fr) | Deflecteur pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel deflecteur | |
| EP0093817A1 (fr) | Unité de ventilation pour moteur à combustion interne de véhicule automobile | |
| FR3084622A1 (fr) | Architecture de traction comportant des machines electriques basse tension integrees dans les roues d'un vehicule automobile | |
| CA2549520A1 (fr) | Machine electrique tournante, notamment alternateur de vehicule automobile, dont les entrees/sorties d'air comprennent des ailettes inclinees par rapport aux pales des ventilateurs | |
| FR3062252B1 (fr) | Machine electrique tournante de traction pour vehicule automobile a commutation de flux | |
| WO2008000992A2 (fr) | Stator pour machine electrique tournante et une telle machine | |
| EP2050180A2 (fr) | Agencement d'un circuit electronique dans une machine electrique tournante et machine electrique tournante comportant un tel agencement | |
| WO2016189230A1 (fr) | Machine electrique tournante a circuit de refroidissement optimise | |
| FR2867914A1 (fr) | Canalisation de refroidissement pour une machine electrique rotative, ainsi qu'une machine electrique rotative comprenant une telle canalisation | |
| FR2894090A1 (fr) | Ventilateur a au moins deux etages pour un ralentisseur electromagnetique et ralentisseur electromagnetique comportant un tel ventilateur | |
| FR2993421A1 (fr) | Machine electrique tournante pour vehicule automobile | |
| FR2864368A1 (fr) | Dispositif de renforcement de la ventilation d'une machine electrique et machine electrique comportant un tel dispositif | |
| FR2864367A1 (fr) | Dispositif de ventilation pour machine electrique tournante autour d'un arbre, a ventilateur independant de l'arbre | |
| FR2829885A1 (fr) | Dispositif de ventilation pour machine electrique tournante et machine electrique pourvue d'un tel dispositif | |
| FR2864370A1 (fr) | Ralentisseur electromagnetique comportant des moyens pour creer un courant d'air | |
| FR2864369A1 (fr) | Ralentisseur electromagnetique comportant des moyens pour creer un courant d'air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200680045761.2 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: MX/a/2008/007325 Country of ref document: MX |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2006841864 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 2006841864 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12090436 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref document number: PI0618439 Country of ref document: BR Kind code of ref document: A2 Effective date: 20080512 |