EP3123058A1 - Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmission - Google Patents
Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmissionInfo
- Publication number
- EP3123058A1 EP3123058A1 EP15709718.9A EP15709718A EP3123058A1 EP 3123058 A1 EP3123058 A1 EP 3123058A1 EP 15709718 A EP15709718 A EP 15709718A EP 3123058 A1 EP3123058 A1 EP 3123058A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- grooves
- wall
- transmission shaft
- distributor
- 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.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000009826 distribution Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000011159 matrix material Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
Definitions
- the invention relates to a fluid pressure distributor tube device mounted inside a transmission shaft, for a continuously variable transmission system of a motor vehicle, particularly but not exclusively to a gearbox automatic or to a mechanical gearbox with hydraulic actuator.
- the invention also relates to a method of manufacturing such a dispenser tube device.
- a motor vehicle which comprises at least one such fluidic pressure distributor device.
- the hydraulic pressure distributor tube mounted in a mechanical transmission shaft carries or includes the housing in the form of grooves intended to receive the Seals between the tube and the shaft result in a relatively complex tube shape and, therefore, a relatively expensive tube. If one wants to keep a simple shape, economic, to the distributor tube, it is then necessary to postpone on the bore of the transmission shaft the formation of these housing in the form of grooves, which also leads to a relatively expensive solution .
- a hose assembly or flexible connector which comprises at least one tubular portion made by hydroforming for fixing a locking mechanism.
- the so-called "hydroforming" process is known per se.
- a hydroforming process is known in which a hollow metal part contained in a matrix is deformed.
- the matrix has an inner shape that corresponds to the shape of the part to be obtained.
- the hollow metal part is deformed under the action of the pressure of an incompressible liquid which is confined to it.
- Means which come into direct contact with the ends of the tube and provide, on the one hand, the sealed closure of the open ends of the hollow metal piece, and on the other hand, pressurizing the liquid that is confined in the latter.
- These means are likely to evolve at different speeds and may consist of pushers coming into direct contact with the ends of the tube, which pushers are driven by a relative movement of approach.
- the sealing of the hollow metal piece is by matting and hardening of the open ends of the piece in contact with the pushers.
- the object of the present invention is to provide a fluid pressure distributor tube device mounted inside a transmission shaft, intended in particular for a continuously variable transmission system or an automatic gearbox. or semi-automatic motor vehicle, which avoids a manufacture of the dispensing tube by machining by removal of material, too expensive process and source of fracture primers on thin thickness of the distributor tube.
- Another object of the present invention is to provide such a distributor tube device, which is of simple design and construction, which is reliable and economical, in particular by making it easier to achieve the tube sealing means, that is to say the support means of the seals mounted between the distributor tube and the transmission shaft.
- the present invention relates to a fluid pressure distributor tube device mounted within a transmission shaft. Seals are provided between the outer wall of the distributor tube and the bore of the transmission shaft within which the tube is mounted.
- the distributor tube is provided on its outer wall grooves for receiving each a seal.
- the grooves are made "monobloc" with the distributor tube and by deformation of the parts of the tube wall comprising the grooves. According to a preferred embodiment of the invention, this deformation has, for each groove, the shape of two external radial peripheral extensions of the outer wall of the tube, axially distant, between which is formed the surface of the groove intended to receive a seal.
- the dispensing tube may be made of one of the following materials: steel, steel alloy, aluminum, aluminum alloy. [001 1]
- the surfaces of the grooves for receiving the seals have a section substantially in a circular arc, and the seals are advantageously toric type seals.
- the device is a hydraulic pressure distribution tube of automatic or semi-automatic transmission of a motor vehicle.
- the aforementioned deformation of the parts of the outer wall of the tube to achieve the grooves for receiving seals is obtained by a hydroforming process.
- This hydroforming process may be a hydroforming method with fixed matrices, or a hydroforming method with moving matrices.
- the present invention also relates to a motor vehicle, which comprises a hydraulic automatic or semi-automatic gearbox, wherein the hydraulic pressure distributor device mounted in the transmission shaft is in accordance with the device dispenser tube described above in outline.
- FIG. 1 is a schematic longitudinal sectional view of the fluid pressure distributor tube device mounted in a cylindrical bore shaft according to the present invention
- FIG. 2 is a longitudinal sectional view, schematic also enlarged, showing a radial housing formed in the distributor tube for receiving an O-ring seal between said tube and the cylindrical bore in which the distributor tube is mounted.
- this tube 10, of axis XX ' is the hydraulic distribution tube of an automatic transmission of a motor vehicle or of a mechanical gearbox with hydraulic control of a motor vehicle.
- the arrows P of Figure 1 illustrate the arrival of hydraulic pressure (oil) in the device.
- the reference 40 designates an oil inlet bushing and the reference 50 a support bearing of the transmission shaft 20.
- Seals collective reference 30, are provided between the outer wall 1 1 of the distributor tube 10 and the bore 21 of the shaft 20.
- the seals 30 are carried by radial housings in the form of "grooves" of collective reference 12. These grooves 12 of seal 30 are made “monobloc” with the distributor tube 10, by deformation of parts of the wall of the tube 10 comprising the grooves 12.
- this deformation of the cylindrical wall of the tube 10 in the region of the grooves 12 has the form of two external radial peripheral extensions, designated by the references 13 and 14. These two extensions 13 and 14 are spaced axially by a distance "d" between which is formed the surface 15 substantially in the form of an arc of the groove 12 intended to receive a seal 30.
- this deformation of the wall of the distributor tube 10 is performed by a so-called “hydroforming” process, of a type known per se.
- Hydroforming is a manufacturing process by plastic deformation of small thickness parts, such as plates or tubes.
- the initial shape of the piece is defined by a mold called "matrix".
- matrix Unlike stamping, there is no complementary matrix hydroforming in this process, which is replaced by a fluid under high pressure which forces the part to take the shape of the imprint of the matrix.
- the use of a fluid under pressure makes it possible to apply a force in areas that are difficult to access, or even inaccessible, by conventional means.
- the materials used for this process are very diverse but have an essential feature in common: their elastic range is as small as possible to avoid too much springback when the pressure of the fluid is released.
- hydroforming aluminum alloys specific steel alloys, in particular.
- the hydroforming process is essentially used in aeronautics. He also knows an application in the manufacture of frames of aluminum bicycles. Finally, it is known for manufacturing some structural vehicle parts, chassis or cradle type, sheet metal, and this process allows for complex shapes in large series, limiting the cost of production.
- the hydroforming process used for the manufacture of the distributor tube 10 may be a so-called "fixed matrix” process, in which only the pressurization of the pressurized fluid contributes to obtaining the final form, or else alternatively, a so-called “moving matrix” method, in which different matrices complete the deformation once it has been initiated by the pressure of said hydroformed pressure fluid.
- the shape of the groove 12 may vary depending on the chosen sealing technology, particularly depending on the shape of the seal 30 (segment, O-ring, flat seal, etc.). .
- the embodiment of the distributor tube 19 by hydroforming allows to integrate the grooves 12 for receiving seals 30.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1452618A FR3019249B1 (fr) | 2014-03-27 | 2014-03-27 | Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmission. |
| PCT/FR2015/050368 WO2015144999A1 (fr) | 2014-03-27 | 2015-02-16 | Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3123058A1 true EP3123058A1 (fr) | 2017-02-01 |
Family
ID=51168081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15709718.9A Withdrawn EP3123058A1 (fr) | 2014-03-27 | 2015-02-16 | Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmission |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3123058A1 (fr) |
| CN (1) | CN106164538B (fr) |
| FR (1) | FR3019249B1 (fr) |
| WO (1) | WO2015144999A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL137426C (fr) * | 1966-12-08 | |||
| FR2679159B1 (fr) * | 1991-07-18 | 1995-03-24 | Louis Thiberge | Procede d'hydroformage et dispositif pour le mettre en óoeuvre. |
| US6270126B1 (en) * | 1998-01-08 | 2001-08-07 | Formrite Companies, Inc. | Hydroformed hose fittings and related hose assemblies |
| US6543266B1 (en) * | 1999-08-24 | 2003-04-08 | Magna International Inc. | Hydroformed collapsible driveshaft and steering shaft and methods of making the same |
| US7080436B2 (en) * | 2001-10-18 | 2006-07-25 | Torque-Traction Technologies, Llc | Method of manufacturing an axially collapsible driveshaft |
-
2014
- 2014-03-27 FR FR1452618A patent/FR3019249B1/fr not_active Expired - Fee Related
-
2015
- 2015-02-16 EP EP15709718.9A patent/EP3123058A1/fr not_active Withdrawn
- 2015-02-16 CN CN201580016615.6A patent/CN106164538B/zh not_active Expired - Fee Related
- 2015-02-16 WO PCT/FR2015/050368 patent/WO2015144999A1/fr not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015144999A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106164538A (zh) | 2016-11-23 |
| CN106164538B (zh) | 2018-12-28 |
| FR3019249B1 (fr) | 2017-08-25 |
| WO2015144999A1 (fr) | 2015-10-01 |
| FR3019249A1 (fr) | 2015-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3818266B1 (fr) | Machine hydrostatique comportant une bague de came | |
| EP3025060B1 (fr) | Dispositif d'etancheite pour piston | |
| EP2960531B1 (fr) | Pièce à sertir sur un support, dispositif comprenant une telle pièce et procédés de fabrication d'une telle pièce et d'un tel dispositif | |
| FR2999965A1 (fr) | Dispositif et procede de formage par emboutissage a grande vitesse | |
| FR3004368A1 (fr) | Brasage sans outillage | |
| FR2523490A1 (fr) | Procede pour fixer axialement une roue dentee metallique sur un arbre metallique et element ainsi produit | |
| EP3755925B1 (fr) | Assemblage d'étanchéité métallique pour l'étanchéité entre un arbre tournant et un bâti fixe | |
| CA2919963C (fr) | Machine d'electro-hydroformage pour la deformation plastique d'une partie projectile de la paroi d'une piece a former | |
| EP2905091A1 (fr) | Procédé d'assemblage d'un insert sur un support | |
| EP3375542A1 (fr) | Procédé d'assemblage d'un insert sur un support, et insert à assembler sur un support | |
| EP3123058A1 (fr) | Dispositif de tube distributeur de pressions fluidiques monte a l'interieur d'un arbre de transmission | |
| FR3061863A1 (fr) | Dispositif d’emboutissage par magneto-formage et procede associe | |
| EP3017210B1 (fr) | Dispositif de freinage par piston à fonction de recul total | |
| FR2535987A1 (fr) | Procede de formage d'un ou plusieurs bulbes, par deformation plastique en expansion de la paroi d'un troncon de tube | |
| EP3051149B1 (fr) | Actionneur d'atterrisseur d'aéronef comprenant un système de commande comportant une tige de commande | |
| FR2997327A1 (fr) | Procede de realisation d'un piston avec un dispositif d'etancheite ainsi que le piston correspondant | |
| EP3496876B1 (fr) | Outil, dispositif et procédé de formage par emboutissage électrohydraulique indirect | |
| FR2979406A1 (fr) | Dispositif permettant d'assurer l'etancheite pour plusieurs canaux hydrauliques, procedes de fabrication et procede de montage d'un tel dispositif | |
| EP1461171A1 (fr) | Procede et dispositif de dudgeonnage et articulation elastique ainsi dudgeonnee | |
| FR2713724A1 (fr) | Rivet à fermeture par dépression. | |
| FR3054284A1 (fr) | Agencement de raccordement de conduite | |
| EP2173505B1 (fr) | Dispositif pour la transformation d'une extremite d'une douille | |
| EP0080914B1 (fr) | Procédé de fixation d'un axe sur un support métallique, outil pour effectuer cette fixation et assemblage ainsi obtenu | |
| FR3084410A1 (fr) | Machine hydraulique | |
| WO2022184991A1 (fr) | Elément tubulaire fileté à segment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20160920 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PSA AUTOMOBILES SA |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20171213 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20180424 |