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WO2021121761A1 - Ensemble d'admission et d'évacuation d'air pour une unité de véhicule - Google Patents

Ensemble d'admission et d'évacuation d'air pour une unité de véhicule Download PDF

Info

Publication number
WO2021121761A1
WO2021121761A1 PCT/EP2020/081046 EP2020081046W WO2021121761A1 WO 2021121761 A1 WO2021121761 A1 WO 2021121761A1 EP 2020081046 W EP2020081046 W EP 2020081046W WO 2021121761 A1 WO2021121761 A1 WO 2021121761A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
housing
unit
opening
sleeve
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
Application number
PCT/EP2020/081046
Other languages
German (de)
English (en)
Inventor
Ferenc JANOSI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of WO2021121761A1 publication Critical patent/WO2021121761A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the invention relates to a ventilation arrangement for a vehicle unit, in particular a vehicle transmission, according to the preamble of claim 1.
  • a vehicle transmission can be exposed to significant temperature differences during ferry operation.
  • the vehicle transmission can be designed with a ventilation arrangement.
  • a pressure equalization valve connected to the transmission housing connects the interior of the transmission via a transmission opening in a liquid-impermeable and air-permeable manner with the environment.
  • the pressure compensation valve has a valve housing with a connecting piece protruding therefrom.
  • a connecting hose element and an adapter piece are provided in the prior art to connect the pressure equalization valve to the transmission housing.
  • the gear opening has an internal thread.
  • the adapter piece is screwed into the gear opening.
  • the connecting hose element is plugged with its one hose end onto a connection contour of the screwed-in adapter piece.
  • the other hose end of the connecting hose element is in a plug-in connection with the connecting piece formed on the valve housing.
  • the pressure equalizing valve known from the prior art protrudes from the transmission housing with a comparatively large protrusion. To this way, the ventilation arrangement known from the prior art requires a large amount of space. In addition, in the prior art, the assembly of the pressure compensation valve is associated with high component costs and high manufacturing costs.
  • the object of the invention is to provide a ventilation arrangement for a vehicle assembly which, compared to the prior art, has a reduced space requirement.
  • connection of the pressure compensation valve on the unit tegephaseuse (ie on the transmission housing) is designed so that the pressure compensation valve protrudes from the unit housing with a reduced overhang compared to the prior art, whereby the space requirement is accordingly reduced.
  • the connection of the pressure compensation valve to the unit housing is implemented as a press fit, in which the connection piece of the pressure compensation valve protrudes into the unit assembly opening.
  • the connection piece is pressed into the unit assembly opening in a plugging process with a sleeve-shaped connecting element in between.
  • the press connection therefore acts in the radial direction between the connection piece of the pressure equalization valve, the connecting element and the assembly installation opening.
  • the sleeve-shaped connecting element is made of a soft component, in particular special rubber.
  • the sleeve-shaped connecting element is elastically deformed during the plugging process while a pressing force is built up.
  • both the connection piece and the opening edge of the unit installation opening can be made of a hard component which, in contrast to the elastically deformable connecting element, remains undeformed during the plugging process.
  • the pressure compensation valve can have a valve housing made of plastic, in which a prefilter and an air-permeable and liquid-impermeable membrane are arranged.
  • the upper side of the valve housing can be covered air-permeable from by means of a valve cap.
  • the connection piece can be formed of the same material and in one piece on a valve housing base. In the case of operation, an air flow path is thus provided between the unit interior and the environment, in which the connection piece, the pre-filter and the membrane are fluidically integrated.
  • valve housing and the connecting piece formed thereon can be designed to be rotationally symmetrical about a central axis in a space-saving manner, the connecting piece being made smaller in diameter compared to the valve housing.
  • the housing bottom of the valve housing can act as a joining stop which, during the plugging process, can be brought directly or indirectly into contact with an end-face opening edge region of the assembly opening.
  • the sleeve-shaped connecting element has an annular collar with a large diameter on its side facing the pressure compensation valve. In the assembled position, this can lie on a front opening edge area of the unit assembly opening.
  • the ring collar of the sleeve-shaped connection element is in the assembly position between the valve housing bottom and the front opening edge area of the unit Assembly opening arranged, namely with the formation of a sealing plane between tween the valve housing and the unit assembly opening.
  • the pressure equalization valve according to the invention is not mounted via a screw connection, but via a plug connection directly into the assembly assembly opening, so that an internal thread in the assembly assembly opening can be omitted. Rather, the inner circumference of the aggregate gate mounting opening and / or the outer circumference of the sleeve-shaped connection element can be smooth-surfaced, in particular smooth-cylindrical.
  • a displacement clearance is formed on the inner circumference of the unit installation opening and / or on the outer circumference of the sleeve-shaped connecting element that interacts therewith.
  • the material of the sleeve-shaped connecting element can be displaced into the displacement space.
  • the displacement clearance can be a circumferential annular groove worked into the inner circumference of the unit assembly opening, for example.
  • the pressure equalization valve can be kept as a separate pre-assembly unit. Their overall height, viewed in the plug-in direction, is made up of a valve housing height and a connecting piece length. After the assembly process has taken place (that is, after the insertion process has taken place), the connection piece of the pressure compensation valve is at least partially, in particular completely, immersed in the assembly assembly opening. The pressure compensation valve therefore protrudes from the unit housing with a significantly reduced protrusion compared to the prior art. The reduced protrusion corresponds roughly to the height of the valve housing.
  • Fig. 3 is a view corresponding to FIG. 1 according to the prior art
  • the ventilation arrangement has a pressure equalization valve 1 connected to the gear housing 19 with a cup-shaped plastic valve housing 3 with a housing base 11 and a circumferential side wall 12 raised by it.
  • a prefilter 5 and an air-permeable and liquid-impermeable membrane 7 are arranged in the valve housing 3 .
  • the top of the valve housing 3 is covered by a Ven tilkappe 9 air-permeable.
  • a connecting piece 13 with a connecting piece length I protrudes downward.
  • the connection piece 13 is dimensioned to be significantly smaller in diameter.
  • the valve housing 11 and the connecting piece 13 are designed to be rotationally symmetrical with respect to a valve longitudinal axis V (FIG. 2).
  • the pressure equalization valve 1 provides an air flow path L between a transmission interior 15 and the environment 17, in which the connection piece 13, the prefilter 5 and the membrane 7 are incorporated.
  • connection of the pressure compensation valve 1 to the unit housing 19 is described below: Accordingly, the connecting piece 13 formed on the valve housing 3 protrudes into a gear opening 21.
  • the connection piece 13 has been pressed into the gear opening 21 by means of a plugging process with the interposition of a sleeve-shaped connecting element 23, namely with the formation of a radial interference fit P ( Figure 1) consisting of the gear opening 21, the connecting element 23 and the connecting piece 13.
  • the sleeve-shaped connecting element 23 is made of an elastically deformable rubber material, while the connecting piece 13 is made of a hard plastic component which (like the gear opening 21) remains undeformed during the plugging process.
  • the sleeve-shaped connecting element 23 has an annular collar 25 of large diameter on its side facing the pressure compensation valve 1. In the installation position shown, this lies between an opening edge area 27 of the transmission opening and the valve housing base 11 and forms a horizontally aligned sealing plane D between the pressure compensation valve 1 and the unit housing 19.
  • the connecting piece 13 is inserted with displacement of the rubber material of the sleeve-shaped connecting element 23. In this way, a pressing force is built up in the sleeve-shaped connecting element 23, by means of which the connecting piece 13 is reliably positioned in the gear opening 21.
  • the sleeve-shaped connecting element 23 is first inserted into the gear opening 21 in a first process step until the ring collar 25 acting as a height stop of the sleeve-shaped connecting element 23 in contact with the opening edge area 27 of the Transmission opening 21 is brought.
  • Both the outer circumference 29 of the sleeve-shaped connecting element 23 and the inner circumference 31 of the gear opening 21 are smooth-surfaced.
  • a circumferential annular groove 33 is incorporated in the inner circumference 31 of the gear opening 21. This acts as a displacement clearance into which the rubber material of the hül seniform connecting element 23 is displaced during the plugging process.
  • valve housing 3 with its connecting piece 13 is inserted into the sleeve-shaped connecting element 23 in a joining direction F (FIG. 2) until the valve housing base 11, which acts as a joining stop, comes into contact with the annular collar 25 of the sleeve-shaped connecting element 23.
  • a total overall height h ges of the pressure compensation valve 1, viewed in the joining direction F, is composed of a valve housing height hv and a connecting piece length I.
  • the connecting piece 13 is essentially completely immersed in the gear opening 21.
  • the pressure compensating valve 1 therefore protrudes from the transmission housing 19 with a protrusion ai that is reduced compared to the prior art (FIG. 3).
  • FIG. 3 a ventilation and Entlüf processing arrangement according to the prior art is shown in a view corresponding to FIG.
  • an adapter piece 37 is provided in addition to a connec tion hose element 35.
  • the gear opening 21 has an internal thread 39.
  • the adapter piece 37 is screwed into the gear opening 21.
  • the connecting hose element 35 is plugged with a lower hose end onto a connection contour 41 of the adapter piece 37.
  • the upper hose end of the connecting hose element 35 is in a plug-in connection with the connecting piece 13 of the valve housing 3 of the pressure compensation valve 1.
  • the pressure compensating valve 1 protrudes from the housing 19 with a significantly larger overhang a2 compared to the invention.
  • this is composed of a hose length s of the valve hose element 35 and the overall height of the valve housing hv.
  • the protrusion a2 resulting in FIG. 3 is therefore larger by approximately the height dimension s than the protrusion ai shown in FIG. 1.
  • the ventilation arrangement shown in FIG. 1 therefore has a greatly reduced installation space requirement compared to FIG. REFERENCE LIST
  • gear housing or unit housing 19 gear housing or unit housing 21 gear opening or unit assembly opening 23 sleeve-shaped connecting element 25 ring collar

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un ensemble d'admission et d'évacuation d'air pour une unité de véhicule, en particulier des transmissions de véhicule, comprenant une soupape d'équilibrage de pression (1) qui est fixée au boîtier d'unité (19) et qui relie l'intérieur de l'unité (15) à l'environnement (17) d'une manière imperméable aux liquides et perméable à l'air par l'intermédiaire d'une ouverture d'installation d'unité (21). Selon l'invention, la fixation de la soupape d'équilibrage de pression (1) au boîtier d'unité (19) se présente sous la forme d'un ensemble d'ajustement serré (P) dans lequel une pièce de liaison (19) de la soupape d'équilibrage de pression (1) fait saillie dans l'ouverture d'installation d'unité (21). Dans l'ensemble d'ajustement serré (P), la pièce de liaison (13) est pressée dans l'ouverture d'installation côté boîtier (21) avec interposition d'un élément de liaison en forme de manchon (23) durant un processus d'enfichage.
PCT/EP2020/081046 2019-12-17 2020-11-05 Ensemble d'admission et d'évacuation d'air pour une unité de véhicule Ceased WO2021121761A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019134788.2 2019-12-17
DE102019134788.2A DE102019134788A1 (de) 2019-12-17 2019-12-17 Be- und Entlüftungsanordnung für ein Fahrzeugaggregat

Publications (1)

Publication Number Publication Date
WO2021121761A1 true WO2021121761A1 (fr) 2021-06-24

Family

ID=73172668

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/081046 Ceased WO2021121761A1 (fr) 2019-12-17 2020-11-05 Ensemble d'admission et d'évacuation d'air pour une unité de véhicule

Country Status (2)

Country Link
DE (1) DE102019134788A1 (fr)
WO (1) WO2021121761A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113459720B (zh) * 2021-08-02 2025-04-11 康迈(南京)机械有限公司 带透气防水功能的油润滑商用车轮毂通气塞及轮毂
DE102024202573A1 (de) 2024-03-19 2025-09-25 Robert Bosch Gesellschaft mit beschränkter Haftung Druckausgleichselement eines Gehäuses
DE102024110575A1 (de) * 2024-04-16 2025-10-16 Mann+Hummel Gmbh Entlüftungseinheit zur Be- und Entlüftung eines Innenraums

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831572A1 (fr) * 1996-09-18 1998-03-25 Nitto Denko Corporation Organe de dégazage
DE202005001931U1 (de) 2005-02-07 2005-04-07 Boellhoff Verbindungstechnik Be- und Entlüftungsventil
DE102008013137A1 (de) 2008-03-07 2009-02-05 Daimler Ag Entlüftungseinrichtung
WO2010076326A1 (fr) * 2008-12-31 2010-07-08 W. L. Gore & Associates Gmbh Dispositif d'aération
FR2966660A1 (fr) 2010-10-25 2012-04-27 Valeo Systemes Dessuyage Bouchon d'etancheite pour sortie de ventilation
US10228009B2 (en) * 2015-09-21 2019-03-12 Apple Inc. Vent for portable electronics combined with enclosure mounting fastener

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359960A (en) * 1964-12-21 1967-12-26 Gen Motors Corp Crankcase ventilation
JP3889924B2 (ja) * 2000-11-17 2007-03-07 本田技研工業株式会社 ブローバイガス還元装置用流量制御弁の取付構造
DE102015002320B4 (de) * 2015-02-26 2022-11-24 Gkn Automotive Ltd. Verfahren zum Abscheiden von Öl

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831572A1 (fr) * 1996-09-18 1998-03-25 Nitto Denko Corporation Organe de dégazage
DE202005001931U1 (de) 2005-02-07 2005-04-07 Boellhoff Verbindungstechnik Be- und Entlüftungsventil
DE102008013137A1 (de) 2008-03-07 2009-02-05 Daimler Ag Entlüftungseinrichtung
WO2010076326A1 (fr) * 2008-12-31 2010-07-08 W. L. Gore & Associates Gmbh Dispositif d'aération
FR2966660A1 (fr) 2010-10-25 2012-04-27 Valeo Systemes Dessuyage Bouchon d'etancheite pour sortie de ventilation
US10228009B2 (en) * 2015-09-21 2019-03-12 Apple Inc. Vent for portable electronics combined with enclosure mounting fastener

Also Published As

Publication number Publication date
DE102019134788A1 (de) 2021-06-17

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