EP2069154A1 - Jambe de suspension pneumatique - Google Patents

Jambe de suspension pneumatique

Info

Publication number
EP2069154A1
EP2069154A1 EP07787300A EP07787300A EP2069154A1 EP 2069154 A1 EP2069154 A1 EP 2069154A1 EP 07787300 A EP07787300 A EP 07787300A EP 07787300 A EP07787300 A EP 07787300A EP 2069154 A1 EP2069154 A1 EP 2069154A1
Authority
EP
European Patent Office
Prior art keywords
air spring
spring strut
motor vehicle
bearing element
bearing
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Withdrawn
Application number
EP07787300A
Other languages
German (de)
English (en)
Inventor
Ralf Pielock
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental 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 Continental AG filed Critical Continental AG
Publication of EP2069154A1 publication Critical patent/EP2069154A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B60G15/14—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements

Definitions

  • the invention relates according to the preamble of claim 1 an air spring strut for a motor vehicle comprising a bearing element, an elastomeric component, a hose rolling bellows, which is connected at its first end with a cylindrical member and at its second end with a rolling piston and thus forms a first active space, a Shock absorber and a connecting element, and wherein the bearing element on one side by means of the elastomeric component fixed to the cylinder element and on the other side with the bodywork of the motor vehicle is connectable.
  • air spring strut of the aforementioned type is known from DE10315679A1.
  • the known from this document air spring strut has a bearing element which is connected via an elastomeric component with a cylinder element.
  • a bellows is arranged, which encloses an air spring volume.
  • the bearing element is connected by bolts fixed to the body of the vehicle.
  • a damper bearing is arranged, which is on the other hand connected to the piston rod of the shock absorber of the air spring strut.
  • the area of the damper bearing is sealed by a lid by means of two O-rings against the atmosphere, since the so-called additional space above the damper bearing with the spring chamber is connected and otherwise the air could escape from the spring chamber into the atmosphere.
  • a disadvantage of the known construction of an air spring strut is that the cover has a very complex structural design and requires large wall thicknesses of the cover for the corresponding receiving groove of the O-rings for the application of conventional O-rings.
  • the object of the invention is to provide an air spring strut with a simple structural and inexpensive construction, which allows the use of thin-walled components.
  • the elastomeric component communicates through at least one opening in the bearing element with a sealing element on the other side of the bearing element in order to seal the first reaction space from the atmosphere.
  • a sealing element associated with the elastomeric component no extra components, e.g. O-rings are necessary, and thus a particularly simple and inexpensive installation of the bearing element incl.
  • the sealing element is possible.
  • Another advantage is that a particularly low overall height in the region of the sealing element can be achieved.
  • the sealing element has a sealing lip. With this sealing lip, the sealing effect of the sealing element can be improved and possibly achieved by the pressure in the first active space supported and thus increased sealing effect.
  • the elastomeric component and the sealing element are made in one piece.
  • the advantage of this development is that the one-piece production is particularly simple and inexpensive and the assembly of the bearing element incl.
  • the sealing element and the elastomer component is simplified and thus improved.
  • the sealing element between the bearing element and the body of the motor vehicle is arranged.
  • the advantage of this development is the fact that the seal between the bearing element and the vehicle body with a structurally simple and inexpensive construction is possible and allows a particularly simple installation.
  • the sealing element between the bearing element and a lid is arranged.
  • the advantage of this development is that the air spring strut can be manufactured as a closed module and tested (eg leakage) can be. Thus, the assembly of the air spring strut to the vehicle body is much easier, and the structural design, such as the tolerance requirements, the vehicle body can be reduced in this area, which saves costs.
  • the sealing element is arranged in the region of the body or the lid facing inner diameter of the bearing element.
  • the bearing element has at least one bore, wherein the sealing element between the bore and an axis of the air spring strut is arranged.
  • a bolt is arranged within the bore such that the head of the bolt is located on the one, the elastomeric component associated side.
  • Fig.l an air spring strut
  • FIG. 2 shows a detail of an air spring strut.
  • Fig.l shows an air spring strut 1 with a bearing element 2, which is fixedly connected to an elastomeric component 4.
  • a cylinder element 8 is vulcanized.
  • the second end 6b of the hose roll bellows 6 is fixedly and sealingly connected by means of a second clamping ring 7b to a rolling piston 20.
  • the rolling piston 10 is supported on a cylinder 14 of a shock absorber.
  • the conventional hydraulic shock absorber has, in addition to the cylinder 14, a piston rod 13.
  • the cylinder 14 of the shock absorber is connected at its lower end to a connecting element 16 which is connectable to a wheel carrier or the like, not shown, of a motor vehicle.
  • shock absorber bearing 15 The protruding from the cylinder 14 of the shock absorber end of the piston rod 13 of the shock absorber is connected via a shock absorber bearing 15 with the bearing element 2.
  • an additional spring element 17 is arranged, which can be supported at a strong deflection of the air spring strut 1 at one axial end of the cylinder 14.
  • a cover 19 fixes the shock absorber bearing 15 in the axial direction relative to the bearing element 2.
  • this function could also be taken over by the body 18 of the motor vehicle with a corresponding geometric design.
  • a first active space 12 is enclosed, in which the pressure medium or spring and / or damping medium is, for example air .
  • the second reaction space surrounding the shock absorber bearing 15 communicates with the first reaction space 12 so that pressure fluid from the first reaction space 12 can reach the atmosphere via the second reaction space.
  • the shock absorber bearing 15 has a metallic inner bearing shell and an elastomeric outer region, which is preferably made of polyurethane. Since polyurethane is porous and thus permeable to air, an additional sealing of the bearing element 2 in the region of the shock absorber bearing 15 and the second effective space is required.
  • a sealing element 22 is arranged, which communicates via two openings 20 in the bearing element 2 with the elastomeric component 4 on the other side of the bearing element 2 in connection.
  • the sealing element 22 is vulcanized for fixing to the bearing element 2 on.
  • the elastomer of the elastomeric component 4 is guided through the openings 20 and so used to form the sealing element 22.
  • the lid 19 is connected by crimping, gluing, screwing or welding firmly to the bearing element 2, so that the air spring strut 1 can be filled, transported and mounted as a closed unit and with pressure medium.
  • FIG. 2 shows a section of an air spring strut with a bearing element 2, an elastomeric component 4, a cylinder element 8, wherein the elastomeric component 4 to the
  • Bearing element 2 and the cylinder element 8 is vulcanized.
  • a sealing element 22 is arranged in the area of one, the body (not shown) facing side and the inner diameter d of the bearing element 2, a sealing element 22 is arranged.
  • two or more bolts 30 are fixedly connected to the bearing element 2.
  • the bolts are guided through a bore 26 of the bearing element 2 such the head 30a of the bolt 30 is surrounded by the elastomer component 4.
  • the other end of the bolt 30 protrudes on one side of the bearing element 2 beyond this in order to be bolted to the body can.
  • the sealing element 22 is vulcanized onto the bearing element 2 and is connected to the elastomer component 4 via at least one opening 20, in this case two openings 20.
  • the sealing element 22 and the elastomeric component 4 are made of the same elastomeric material.
  • the sealing element 22 is arranged between the bore 26 and an axis 28 of the bearing element 2, so that a secure seal of the first and / or second reaction space is ensured. For better sealing of the first and / or second
  • the sealing element 22 has two circumferential sealing lips 24. It is also possible that only one circumferential sealing lip 24 or more than two circumferential sealing lips 24 are used.
  • the invention is not limited to the embodiments of Fig.l or Fig.2. It is also possible to use the invention in hydropneumatic air spring struts or gas spring damper units without hydraulic damper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Jambe de suspension pneumatique (1) pour un véhicule automobile. Elle comprend un élément de palier (2), une pièce en élastomère (4) et un soufflet roulant (6), qui est relié à sa première extrémité (6a) à un élément cylindrique (8) et à sa deuxième extrémité (6b) à un piston de déroulement (10) et forme ainsi un premier espace actif (12). Elle comprend également un amortisseur de chocs (14) et un élément de liaison (16). L'élément de palier (2) peut être relié sur un côté fixement à l'élément cylindrique (8) au moyen de la pièce en élastomère (4), et sur l'autre côté à la carrosserie (18) du véhicule automobile. La pièce en élastomère (4) communique par au moins une ouverture (20) dans l'élément de palier (2) avec un élément d'étanchéité (22) sur l'autre côté de l'élément de palier (2), afin de rendre étanche le premier espace actif (12) vis-à-vis de l'atmosphère.
EP07787300A 2006-09-15 2007-07-10 Jambe de suspension pneumatique Withdrawn EP2069154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610043471 DE102006043471A1 (de) 2006-09-15 2006-09-15 Luftfederbein
PCT/EP2007/057025 WO2008031649A1 (fr) 2006-09-15 2007-07-10 Jambe de suspension pneumatique

Publications (1)

Publication Number Publication Date
EP2069154A1 true EP2069154A1 (fr) 2009-06-17

Family

ID=38606448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07787300A Withdrawn EP2069154A1 (fr) 2006-09-15 2007-07-10 Jambe de suspension pneumatique

Country Status (3)

Country Link
EP (1) EP2069154A1 (fr)
DE (1) DE102006043471A1 (fr)
WO (1) WO2008031649A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015100281A1 (de) * 2015-01-09 2016-07-14 Trelleborgvibracoustic Gmbh Verbundbauteil sowie Luftfederkomponente mit einem derartigen Verbundbauteil
DE102016205741A1 (de) * 2016-04-05 2017-10-05 Continental Teves Ag & Co. Ohg Luftfederdeckel
DE102017217041B4 (de) 2017-09-26 2023-06-07 Continental Automotive Technologies GmbH Luftfederbein mit verschiebbarer Konturschale und Fahrwerk mit einem solchen
DE102017217044B4 (de) 2017-09-26 2021-12-09 Continental Teves Ag & Co. Ohg Luftfederbein mit verschiebbaren Rollflächensegmenten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291720A2 (fr) * 1987-05-18 1988-11-23 Bridgestone/Firestone, Inc. Système de suspension pour véhicules comportant un élément formant support isolateur et organe d'étanchéité de ressort pneumatique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574450A (en) * 1981-11-24 1986-03-11 General Motors Corporation Method of servicing a vehicle suspension unit with replacement air spring
DE3605292A1 (de) * 1986-02-19 1987-08-20 Wolf Woco & Co Franz J Rollbalg-gasdruckfeder
DE3726923C2 (de) * 1986-08-22 1997-02-06 Volkswagen Ag Luftfeder zur Abfederung eines Kraftfahrzeuges
CA1336616C (fr) * 1988-10-05 1995-08-08 I. Davis Roy Suspension active electrique pour vehicule
US5180144A (en) * 1991-09-03 1993-01-19 General Motors Corporation Air spring module for a damper
US6547224B2 (en) * 2001-04-12 2003-04-15 Delphi Technologies, Inc. Pneumatic self leveling suspension damper
DE10121918B4 (de) * 2001-05-05 2004-10-07 Daimlerchrysler Ag Feder-Dämpfer-System mit federndem Anschlag
DE10225354B4 (de) * 2002-06-07 2006-07-13 Daimlerchrysler Ag Kopflager eines Kraftfahrzeugfederbeins
DE10236621B4 (de) * 2002-08-09 2005-02-03 Daimlerchrysler Ag Luftfedersystem eines McPherson-Federbeins
DE10315679A1 (de) * 2003-04-07 2004-10-21 Bayerische Motoren Werke Ag Luftfederbein für ein Kraftfahrzeug
DE102004060727A1 (de) * 2004-12-17 2006-07-06 Vibracoustic Gmbh & Co. Kg Luftfeder und Verfahren zur Abdichtung einer Luftfeder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291720A2 (fr) * 1987-05-18 1988-11-23 Bridgestone/Firestone, Inc. Système de suspension pour véhicules comportant un élément formant support isolateur et organe d'étanchéité de ressort pneumatique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008031649A1 *

Also Published As

Publication number Publication date
DE102006043471A1 (de) 2008-03-27
WO2008031649A1 (fr) 2008-03-20

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