EP4602284A1 - Agencement de fixation d'un reniflard dans un véhicule - Google Patents
Agencement de fixation d'un reniflard dans un véhiculeInfo
- Publication number
- EP4602284A1 EP4602284A1 EP23785821.2A EP23785821A EP4602284A1 EP 4602284 A1 EP4602284 A1 EP 4602284A1 EP 23785821 A EP23785821 A EP 23785821A EP 4602284 A1 EP4602284 A1 EP 4602284A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixing
- vehicle
- arrangement
- point
- breather
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
Definitions
- TITLE Arrangement for fixing a breather in a vehicle
- the invention relates to an arrangement for fixing a gearbox breather in a vehicle, particularly in the front structure of the vehicle.
- the invention also relates to a vehicle equipped with such an arrangement.
- the invention finally relates to a method of mounting an arrangement according to the invention.
- the front structure of vehicles and more particularly the engine compartment, is subject to numerous spatial constraints so that the space available for the installation of new components or the rearrangement of classic components is reduced.
- Such a problem is particularly present with the evolution of vehicles from traditional engines, with thermal engines, to electric or hybrid engines.
- a breather includes in particular a valve systematically causing an entry of air into an environment where a depression occurs. In order to ensure proper operation of such a breather, it must be implemented under specific conditions. In particular, in order to prevent the entry of foreign bodies into the housing, or casing, of the gearbox, such as dust and/or insects, it is known to equip the breather with a protective cap. Also, to avoid water intrusion, particularly in countries subject to the risk of monsoon, the breather outlet must conventionally be installed at a height, that is to say at a vertical position relative to the ground, predefined and suitable.
- the thermal engines have a vertical footprint allowing vertical installation at more or less suitable heights, the gearbox breather can then simply be fixed on the housing of the thermal engine.
- Such a principle cannot nevertheless be transposed to electric vehicles, on the one hand due to the smaller vertical dimensions of electric motors and on the other hand due to the different dimensions of the front structure of the vehicle, for example the presence of a crosspiece or beam extending across the engine compartment, making it impossible to raise a breather from the electric motor housing, that is to say vertically to the electric motor.
- the second fixing point being configured to prevent the transmission of vibrations and/or stresses from the engine to the free end of the tubing and the second fixing point being interposed between the first fixing point and the third fixing point fixation.
- the tongue and the second element of the front structure of the vehicle can form a one-piece assembly.
- the tongue may comprise at least one reinforcement and/or an oblong orifice capable of receiving a body for fixing the breather, such as a clip or a staple.
- the breather may also include a cover equipped with a filter placed on the free end of the tubing, the third fixing point being able to be made at said cover.
- the invention also relates to a motor vehicle, in particular a vehicle with an electric motor, comprising an arrangement according to the invention.
- the free end of the breather tube can be arranged at a height, defined along the vertical direction, greater than or equal to 650mm, or even 670mm relative to a ground on which the vehicle rests (100 ).
- the invention finally relates to a method of assembling an arrangement according to the invention, comprising successively:
- Figure 1 is a simplified schematic representation of an exemplary embodiment of an arrangement for fixing a gearbox breather produced according to a first embodiment.
- Figure 2 is a schematic top view of the arrangement illustrated in Figure 1.
- Figure 4 is a perspective representation of the fixing point of the breather implemented on the window washer chute.
- Figure 5 is a simplified schematic representation of an exemplary embodiment of the gearbox breather fixing arrangement produced according to a second embodiment.
- Figure 6 is a schematic top view of the arrangement illustrated in Figure 5.
- Figure 1 schematically illustrates an exemplary embodiment of an arrangement 1 for fixing a breather 2 of a gearbox 3 within a vehicle 100, in particular a motor vehicle, such an arrangement 1 being arranged at the level of the structure front of a vehicle 100.
- the vehicle 100 considered is particularly a motor vehicle with an electric motor.
- arrangement 1 according to the invention can be applied mutatis mutandis to vehicles 100 with a thermal engine comprising a thermal engine or to vehicles 100 with a hybrid engine comprising a thermal engine and at least one propulsion battery, also referred to as motor skills battery.
- the vehicle 100 considered may, for example, be a private vehicle or a utility vehicle.
- Figures 1 to 6 illustrate different examples and embodiments of arrangement 1 according to the invention.
- the direction in which the automobile vehicle 100 moves in a straight line is defined as being the longitudinal direction X.
- the direction perpendicular to the longitudinal direction and located in a plane parallel to the ground is called transverse direction Y.
- the direction perpendicular to the directions The terms “high” and “low” or “upper” and “lower” are understood in their general sense, the terms “low” and “lower” designating greater proximity to the ground.
- the terms “first”, “second” are intended to distinguish similar elements and not to define a hierarchy within said elements.
- the arrangement 1 according to the invention comprises at least one motor 4, for example an electric motor 4, a gearbox 3, a breather 2 connected to said gearbox 3, a first element 5 and a second element 6 of the front structure of the vehicle 100, distinct from each other.
- the breather 2 is a valve system configured to allow air to enter into an environment where a depression occurs, in this case in the gearbox 3.
- the breather 2 comprises a tube 21, which is connected to the box speeds 3 at a first end.
- a second, free end of said tubing 21 comprises an air inlet.
- the arrangement 1 particularly comprises at least three distinct fixing points arranged along the tubing 21.
- fixing point is meant a fixing interface between the breather 2, in particular the tubing 21, a member of fixing 7 as further explained below and a component serving as a support for said fixing member 7.
- At least one of said points is particularly configured in order to prevent the transmission of vibrations and/or stresses coming from the motor 4 up to the free end of the tubing 21.
- at least two fixing points are configured in order to prevent the transmission of such vibrations and/or stresses. Indeed, during the operation of the vehicle 100, for example in the driving phase, the accelerations and decelerations of the motor 4 result in movements and vibrations thereof. As illustrated in Figure 1 with the representations in dotted lines, the tube 21 of the breather 2 is then stressed by the movements of the motor 4 and the vibrations are transmitted to it.
- the fixing points described below are particularly intended to prevent such a phenomenon.
- the tubing 21 has a structure that is at least partly curved, in particular at least partly “S-shaped”.
- the tubing 21 includes, in in addition, at least one rectilinear part at which one of the fixing points is implemented.
- the tubing 21 comprises at least as many rectilinear parts as the arrangement 1 comprises fixing points, each fixing point being implemented at one of said rectilinear parts.
- the arrangement 1 comprises three fixing points and the tube 21 comprises three rectilinear parts.
- the arrangement 1 comprises a first point 81 for fixing the tubing 21, made on a housing of the motor 4.
- the first point 81 for fixing is made at the level of a removable fixing tab 8, attached to the motor housing 4.
- the tab 8, and by extension the first fixing point 81 is fixed relative to the motor 4.
- the fixing tab 8 is made of a metallic material.
- the tubing 21 is connected to the fixing tab 8 via a fixing member 7.
- the fixing member 7 can in particular be a staple or a clip.
- the fixing member 7 can, for example, have two curved and articulated arms, said arms being able to close around the tubing 21 of the breather 2.
- the fixing member 7 can comprise a ring .
- the fixing tab 8 can be a multifunction fixing tab 8 configured to hold at least one cable or pipe.
- the fixing tab 8 can be configured to hold an electrical power cable of the vehicle 100, in particular a 12V electrical cable supplying a utility battery.
- the fixing tab 8 being mounted on the housing of the motor 4, it is subject to vibrations and movements.
- At least a second point 82 for fixing the tube 21 is made on the first element 5 of the front structure of the vehicle 100 and a third point 83 for fixing the tube 21 is made on the second element 6 of the front structure of the vehicle 100.
- the second fixing point 82 is a fixed point relative to the front structure of the vehicle 100.
- a fixed point is meant a point which is not moved, in particular which is not moved with the engine 4 when it is in operation as explained above.
- such a fixed point aims to limit the transmission of vibrations and stresses along at least part of the tubing 21.
- the second fixing point 82 is made at a part of the front structure sufficiently solid not to be moved or torn off in the event of extreme stress on the engine 4.
- the second fixing point 82 is arranged so as to be interposed between the first fixing point 81 and the free end of the tube 21.
- the second fixing point 82 is produced via a fixing member 7 such as explained previously, directly mounted on the first element 5 of the front structure.
- a fixing member 7 such as explained previously, directly mounted on the first element 5 of the front structure.
- directly we mean that the fixing member 7 is directly mounted on the first element 5, without any other intermediary.
- the fixing member 7 can be clipped or screwed at a threaded hole included in the first front structural element 5.
- first point 81 and second fixing point 82 thus virtually delimit three distinct segments of the tubing 21 of the breather 2.
- segment means a portion of a whole, in this case a portion of the tubing 21.
- first segment 210 of the tubing 21 is fitted without a fixing collar onto a connection 11 of the gearbox housing 3 and held at the level of the first fixing point 81.
- This first segment 210 is fixed, or substantially fixed, with the gearbox 3, that is to say relative to the gearbox 3.
- the first segment 210 can be caused to be moved concomitantly with the gearbox 3 depending on the accelerations and decelerations of the engine 4.
- the first fixing point 81 thus has the function of intermediate fixing of the tube 21 intended to limit or prevent vibrations or stresses of the first segment 210 so as to prevent any tearing of the tubing 21 from the connection 11.
- the first point 81 and the second fixing point 82 delimit a second segment 211 of the tubing 21.
- the second segment 211 can, as explained previously, be subjected to vibrations and stresses. Examples of movements of the second segment 211 are illustrated in particular in dotted lines in Figure 1.
- the second segment 211 extends only over part of the length of the tubing 21, the movement observed, that is to say the The amplitude of the movements of said segment due to the vibrations and stresses of the motor 4 is limited.
- a third segment 212 is delimited by the second fixing point 82 on the one hand and the free end of the tubing 21 on the other hand.
- the third segment 212 notably comprises the third fixing point 83.
- the third segment 212 is fixed or substantially fixed relative to the front structure of the vehicle, in particular relative to the first element 5 and/or the second element 6 of the front structure, that is to say it is little or even not , subject to vibrations and stresses of the motor 4, in particular due to the installation of the second fixing point 82.
- the second segment 211 of the tube 21 thus extends within the front structure in order to reach the fixed point formed by the first element 5 of the front structure.
- the second segment 211 can extend in particular along the longitudinal direction X and/or along the transverse direction Y.
- the second segment 211 can also rise in height, along the vertical direction Z.
- the third segment 212 of the tubing 21 extends essentially, that is to say mostly or mainly, along the vertical direction Z until the free end of the tubing 21 reaches a suitable, predefined height.
- the third segment 212 can also extend at least partly along the longitudinal direction X and/or along the transverse direction Y.
- the arrangement according to the invention advantageously allows positioning of the free end of the tube 21 at any type of height required and in particular at high heights greater than 600mm, relative to the ground when the arrangement 1 is equipped within the vehicle , thanks to the solid and resistant fixing implemented.
- the first element 5 of the front structure of the vehicle 100 can thus be a nozzle of a fan 51 placed on the front face of the vehicle 100.
- the first element 5 of the front structure of the vehicle 100 can be a fixed element of the body structure, such as a spar or a crossmember.
- the arrangement 1 according to the invention may comprise a plurality of second fixing points 82, fixed, as explained previously, arranged between the first fixing point 81 and the third fixing point 83.
- the plurality of second fixing points 82 can advantageously be produced according to the first embodiment and/or according to the second embodiment.
- the third fixing point 83 can optionally be configured to prevent the transmission of vibrations and/or stresses from the motor 4 to the free end of the tubing 21.
- the third point 83 fixing can be fixed relative to the second element 6 of the front structure.
- the third fixing point 83 is arranged so that the second fixing point 82 is interposed between the first fixing point 81 and the third fixing point 83 along the tubing 21.
- the tongue 9 and the second element 6 of the front structure of the vehicle 100 can form a single-piece assembly.
- one-piece assembly is meant that the tongue 9 and at least part of the second element 6 of the front structure are made in one piece so that they cannot be separated from each other without resulting in the degradation, even destruction, of one or the other.
- the tongue 9 extends here horizontally, or substantially horizontally.
- the tongue 9 can come from a longitudinal member of the vehicle 100 and extend towards the engine compartment 4.
- the tongue 9 can in particular comprise a flat portion comprising an orifice 91 capable of receiving the fixing member 7.
- the orifice 91 can be an oblong orifice 91.
- the tongue 9 may also include a reinforcement 92 extending transversely to the flat portion of the tongue 9 and configured to ensure the mechanical strength of the tongue 9 and, by extension, the good holding of the tubing 21.
- the third fixing point 83 is made at said cover 10.
- the fixing member 7 implemented at the third fixing point 83 then cooperates with the cover 10, which surrounds the tubing 21.
- the cover 10 as illustrated has an upper end part 101, free, and a lower end part 102.
- the configuration member cooperates with an intermediate portion of the cover 10, included between the upper end part 101 and the lower extreme part 102.
- the free end of the tubing 21, not visible, then extends in a space delimited by the cover 10, between the upper end part 101 and the lower end part 102.
- the cover 10 may comprise a rib 103 extending over all or part of the periphery of the intermediate part of the cover 10 and configured to form a stop for the fixing member 7 along at least one direction, especially along the vertical direction Z.
- the breather 2 comprises such a cover 10
- at least the free end of the tube 21 is arranged at the desired, predefined height, all or part of the cover 10 then being able to have a vertical positioning greater than such a height.
- the arrangement 1 according to the invention thus advantageously makes it possible to integrate the resistant fixing tab 9 into existing references fitted to the vehicle 100 at a lower cost.
- the fixing carried out, in a plurality of fixing points, is adapted to significant stresses and vibrations of the motor 4.
- the arrangement 1 also makes it possible to simplify the assembly of the breather 2, as explained below with reference to the method assembly according to the invention, eliminating the need to integrate multiple support or fixing parts attached.
- the arrangement 1 advantageously allows the free end of the tube 21 of the breather 2 to be arranged at a height, defined along the vertical direction, predefined and adapted.
- the free end of the tubing 21 is arranged at a height, relative to a ground on which the vehicle 100 rests, greater than or equal to 650mm, or even greater than or equal to 670mm.
- the vertical positioning of the tube 21 can be achieved as a function of the free end of the tube 21 and/or as a function of the position of the cover 10
- the lower end part 102 of the cover 10 can have a positioning, along the vertical direction Z, at a predefined desired height, for example a height greater than or equal to 650mm, or even greater than or equal to 670mm.
- the third fixing point 83 corresponding to the zone of cooperation between the breather 2 and the fixing member 7, thus has a vertical position strictly greater than the targeted, predefined height.
- the third fixing point 83, in particular the fixing member 7, extends to a height strictly greater than 650mm, or even strictly greater than 670mm relative to the ground, for example of the order of 690mm.
- the present invention also relates to a method of mounting an arrangement 1 as explained previously.
- Said method initially comprises fitting the tubing 21, particularly the first end of the tubing 21, of the breather 2 onto the housing of the gearbox 3.
- the first point 81 for fixing the tubing 21 is then fixed to the motor housing 4 via the attached removable tab 8.
- breather 2 can be clipped onto tab 8.
- the electrical wiring of at least one electrical power cable can be maintained on this same tab 8.
- the breather 2 is then placed in a waiting position on the motor 4.
- the fixing of the second point 82 of fixing of the tube 21 is implemented on the first element 5 of the front structure of the vehicle 100.
- the fixing of the third point 83 for fixing the tube 21 is carried out on the second element 6 of the front structure of the vehicle 100
- the various fixings can be made by clipping.
- the present invention thus proposes an arrangement for fixing a gearbox breather making it possible to limit, or even prevent, the propagation of vibrations and stresses coming from the engine over the entire breather tube.
- the arrangement ensures solid and resistant fixing at varying heights on elements conventionally fitted to vehicles.
- the invention is suitable for use in electric vehicles, which are conventionally unsuitable for positioning the breathers at a high height.
- the invention also advantageously allows a limitation of references and a reduction of costs by the use of existing elements in the vehicle.
- the invention allows simplified assembly and handling by limiting the number of references involved in the front structure of the vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2210347A FR3140659B1 (fr) | 2022-10-10 | 2022-10-10 | Agencement de fixation d’un reniflard dans un véhicule |
| PCT/EP2023/077987 WO2024079088A1 (fr) | 2022-10-10 | 2023-10-10 | Agencement de fixation d'un reniflard dans un véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4602284A1 true EP4602284A1 (fr) | 2025-08-20 |
Family
ID=84361936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23785821.2A Pending EP4602284A1 (fr) | 2022-10-10 | 2023-10-10 | Agencement de fixation d'un reniflard dans un véhicule |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4602284A1 (fr) |
| FR (1) | FR3140659B1 (fr) |
| WO (1) | WO2024079088A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260130A (en) * | 1963-07-29 | 1966-07-12 | Charlie C Pitts | Ventilation system for gear housings |
| JP2000266166A (ja) * | 1999-03-15 | 2000-09-26 | Suzuki Motor Corp | 変速機のエアブリーザ構造 |
| FR3084426B1 (fr) * | 2018-07-25 | 2021-01-15 | Akwel | Capuchon d’aeration d’une transmission |
| JP7085582B2 (ja) * | 2020-03-31 | 2022-06-16 | 本田技研工業株式会社 | 車両のブリーザ構造 |
-
2022
- 2022-10-10 FR FR2210347A patent/FR3140659B1/fr active Active
-
2023
- 2023-10-10 WO PCT/EP2023/077987 patent/WO2024079088A1/fr not_active Ceased
- 2023-10-10 EP EP23785821.2A patent/EP4602284A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3140659B1 (fr) | 2024-09-27 |
| WO2024079088A1 (fr) | 2024-04-18 |
| FR3140659A1 (fr) | 2024-04-12 |
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