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EP1192367A1 - External guide from fiber-reinforced plastic for use in a pneumatic spring system - Google Patents

External guide from fiber-reinforced plastic for use in a pneumatic spring system

Info

Publication number
EP1192367A1
EP1192367A1 EP01931447A EP01931447A EP1192367A1 EP 1192367 A1 EP1192367 A1 EP 1192367A1 EP 01931447 A EP01931447 A EP 01931447A EP 01931447 A EP01931447 A EP 01931447A EP 1192367 A1 EP1192367 A1 EP 1192367A1
Authority
EP
European Patent Office
Prior art keywords
air spring
air
bellows
arrangement according
spring arrangement
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Withdrawn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
EP01931447A
Other languages
German (de)
French (fr)
Inventor
Antonio Branco
Michael Weber
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.)
Phoenix AG
Original Assignee
Phoenix 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 Phoenix AG filed Critical Phoenix AG
Publication of EP1192367A1 publication Critical patent/EP1192367A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7101—Fiber-reinforced plastics [FRP]

Definitions

  • the invention relates to an air spring arrangement according to the preamble of claim 1.
  • Air spring arrangements of this type are mainly used in automotive engineering.
  • a generic air spring arrangement with air spring cover, air spring piston and air spring bellows with an additional outer guide is described for example in the documents DE-A-3643073 and DE-A-10001 018. If appropriate, the air spring arrangement can also be provided with a vibration damper (shock absorber) and / or with a protective sleeve, reference being made in this regard in particular to the document DE-A-19753 637.
  • the air bellows is usually provided with an embedded reinforcement, in the form of an axial bellows (DE-A-3643073; Fig. 1) or cross-layer bellows (DE-A-2904522; Fig. 2).
  • an axial bellows with its axially extending thread reinforcements
  • the outer guide has been made of a metallic material, in particular an aluminum alloy.
  • the object of the invention is now to provide a more cost-effective alternative to the previously known outer guides, with a simultaneous reduction in weight.
  • Fig. 4 is a fabric in a crossed arrangement.
  • the air spring 1 shows an air spring arrangement 1, the air spring bellows 2 made of elastomeric material enclosing a volume-elastic air chamber 3.
  • the air bellows is usually provided with an embedded reinforcement, in particular in the form of an axial bellows.
  • the air spring cover 4 which is usually pot-shaped and also often serves as a pressure vessel, has a first fastening area 5, to which one end of the air spring bellows 2 is fastened by means of a clamping ring 6.
  • the air spring piston 7 as a tubular component comprises an end region 8 which is arranged opposite the air spring cover 4. This is followed laterally by the second fastening area 9 for the other end of the air bellows 2.
  • the attachment is also carried out here by means of a clamping ring 10, the bellows flanging the clamping ring.
  • This fastening area is usually provided with an undercut to form a shoulder.
  • the outer guide 13 which is fastened to the air spring cover and / or to a component fixed to the body and / or to the air bellows, reference being made, for example, to the publication DE-U-29823508, essentially encloses the entire area of the air bellows 2.
  • Fig. 2 now shows the tubular outer guide 13 made of plastic with high impact strength, preferably based on a polyamide or polyester.
  • the plastic is provided with an embedded reinforcement 14.
  • This reinforcement consists of fibers, especially glass fibers, which are in the plastic can be mixed in.
  • a fabric construction, in particular in the case of a single-layer arrangement, is also possible, two variants being presented below.
  • the fabric 15 is in a warp-weft arrangement, the warp direction A being the axial direction and the weft direction B being the circumferential direction (arrow direction) of the outer guide 13.
  • the fabric 16 has a crossed arrangement.
  • Glass fibers are preferably used as the base material for the fabric 15 and 16.
  • the plastic outer guide with the strength members presented here lead to a reduction in the wall thickness and thus to a weight reduction.
  • Air spring arrangement Air bellows Air chamber Air spring cover (air spring cup, pressure container) first fastening area clamping ring Air spring piston (rolling piston, plunger piston) forehead area second fastening area clamping ring Rolling surface loop (roll fold) External guide Strength support fabric in chain-weft arrangement with warp direction A and weft direction B Fabric in a crossed arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention relates to a pneumatic spring system (1), comprising at least the following components, namely air-spring bellows (2), an air-spring cover (4), an air-spring piston (7) and an external guide (13). The inventive pneumatic spring system (1) is characterized in that the external guide (13) consists of a plastic material with a solid support embedded therein.

Description

Luftfederanordnung Air spring arrangement
Beschreibungdescription
Die Erfindung betrifft eine Luftfederanordnung gemäß Oberbegriff des Patentanspruches 1. Luftfederanordnungen dieser Art werden vorwiegend in der Kraftfahrzeugtechnik eingesetzt.The invention relates to an air spring arrangement according to the preamble of claim 1. Air spring arrangements of this type are mainly used in automotive engineering.
Eine gattungsgemäße Luftfederanordnung mit Luftfederdeckel, Luftfederkolben und Luftfederbalg mit zusätzlicher Außenführung ist beispielsweise in den Druckschriften DE-A-3643073 und DE-A-10001 018 beschrieben. Gegebenenfalls kann die Luftfederanordnung noch mit einem Schwingungsdämpfer (Stoßdämpfer) und/oder mit einer Schutzmanschette versehen sein, wobei diesbezüglich insbesondere auf die Druckschrift DE-A-19753 637 verwiesen wird.A generic air spring arrangement with air spring cover, air spring piston and air spring bellows with an additional outer guide is described for example in the documents DE-A-3643073 and DE-A-10001 018. If appropriate, the air spring arrangement can also be provided with a vibration damper (shock absorber) and / or with a protective sleeve, reference being made in this regard in particular to the document DE-A-19753 637.
Der Luftfederbalg ist zumeist mit einem eingebetteten Festigkeitsträger versehen, und zwar in Form eines Axialbalges (DE-A-3643073; Fig. 1) oder Kreuzlagenbalges (DE-A-2904522; Fig. 2). Bei einem Axialbalg mit seinen axial verlaufenden Fadenverstärkungen ist es dabei erforderlich, den Luftfederbalg mit einer Außenführung auszustatten. Dabei besteht die Außenführung bislang aus einem metallischen Werkstoff, insbesondere aus einer Aluminiumlegierung.The air bellows is usually provided with an embedded reinforcement, in the form of an axial bellows (DE-A-3643073; Fig. 1) or cross-layer bellows (DE-A-2904522; Fig. 2). In the case of an axial bellows with its axially extending thread reinforcements, it is necessary to provide the air bellows with an external guide. So far, the outer guide has been made of a metallic material, in particular an aluminum alloy.
Die Aufgabe der Erfindung besteht nun darin, eine kostengünstigere Alternative zu den bisher bekannten Außenführungen bereitzustellen, und zwar bei gleichzeitiger Gewichtsreduzierung.The object of the invention is now to provide a more cost-effective alternative to the previously known outer guides, with a simultaneous reduction in weight.
Gelöst wird diese Aufgabe gemäß Kennzeichen des Patentanspruches 1 dadurch, dass die Außenführung aus Kunststoff mit einem eingebetteten Festigkeitsträger besteht.This object is achieved in accordance with the characterizing part of patent claim 1 in that the outer guide consists of plastic with an embedded reinforcement.
Zweckmäßige Ausgestaltungen der Erfindung sind in den Patentansprüchen 2 bis 8 genannt.Advantageous embodiments of the invention are mentioned in claims 2 to 8.
Die Erfindung wird anhand von Ausführungsbeispielen unter Bezugnahme auf schematische Zeichnungen erläutert. Es zeigen: Fig. 1 eine Luftfederanordnung mit Außenführung;The invention is explained using exemplary embodiments with reference to schematic drawings. Show it: 1 shows an air spring arrangement with an outer guide;
Fig. 2 einen Querschnitt durch eine Außenführung;2 shows a cross section through an outer guide.
Fig. 3 ein Gewebe in Kette-Schuss-Anordnung;3 shows a fabric in a warp-weft arrangement;
Fig. 4 ein Gewebe in gekreuzter Anordnung.Fig. 4 is a fabric in a crossed arrangement.
Fig. 1 zeigt eine Luftfederanordnung 1, wobei der Luftfederbalg 2 aus elastomerem Werkstoff eine volumenelastische Luftkammer 3 einschließt. Der Luftfederbalg ist dabei zumeist mit einem eingebetteten Festigkeitsträger versehen, insbesondere in Form eines Axialbalges.1 shows an air spring arrangement 1, the air spring bellows 2 made of elastomeric material enclosing a volume-elastic air chamber 3. The air bellows is usually provided with an embedded reinforcement, in particular in the form of an axial bellows.
Der Luftfederdeckel 4, der üblicherweise topfförmig ausgebildet ist und zudem häufig als Druckbehälter dient, weist einen ersten Befestigungsbereich 5 auf, an dem das eine Ende des Luftfederbalges 2 mittels eines Klemmringes 6 befestigt ist.The air spring cover 4, which is usually pot-shaped and also often serves as a pressure vessel, has a first fastening area 5, to which one end of the air spring bellows 2 is fastened by means of a clamping ring 6.
Der Luftfederkolben 7 als rohrförmiges Bauteil umfasst einen Stirnbereich 8, der dem Luftfederdeckel 4 gegenüberliegend angeordnet ist. Hieran schließt sich seitlich der zweite Befestigungsbereich 9 für das andere Ende des Luftfederbalges 2 an. Die Befestigung erfolgt auch hier mittels eines Klemmringes 10, wobei das Balgende den Klemmring umbördelt. Dieser Befestigungsbereich ist zumeist mit einer Hinterschneidung unter Bildung einer Schulter versehen. Beim Einfedern des Luftfederbalges 2 entsteht ferner eine Schlaufe 12, die an der Abrollfläche 11 des Luftfederkolbens abrollen kann.The air spring piston 7 as a tubular component comprises an end region 8 which is arranged opposite the air spring cover 4. This is followed laterally by the second fastening area 9 for the other end of the air bellows 2. The attachment is also carried out here by means of a clamping ring 10, the bellows flanging the clamping ring. This fastening area is usually provided with an undercut to form a shoulder. When the air bellows 2 is deflected, a loop 12 is also formed which can roll on the rolling surface 11 of the air spring piston.
Die Außenführung 13, die am Luftfederdeckel und/oder an einem karosseriefesten Bauteil und/oder am Luftfederbalg befestigt ist, wobei diesbezüglich beispielsweise auf die Druckschrift DE-U-29823508 verwiesen wird, umschließt im wesentlichen den gesamten Bereich des Luftfederbalges 2.The outer guide 13, which is fastened to the air spring cover and / or to a component fixed to the body and / or to the air bellows, reference being made, for example, to the publication DE-U-29823508, essentially encloses the entire area of the air bellows 2.
Fig. 2 zeigt nun die rohrförmige Außenführung 13 aus Kunststoff mit hoher Schlagzähigkeit, vorzugsweise auf der Basis eines Polyamids oder Polyesters. Der Kunststoff ist dabei mit einem eingebetteten Festigkeitsträger 14 versehen. Dieser Festigkeitsträger besteht aus Fasern, insbesondere Glasfasern, die in den Kunststoff eingemischt werden können. Auch eine Gewebekonstruktion, insbesondere bei einer einlagigen Anordnung, ist möglich, wobei im folgenden zwei Varianten vorgestellt werden.Fig. 2 now shows the tubular outer guide 13 made of plastic with high impact strength, preferably based on a polyamide or polyester. The plastic is provided with an embedded reinforcement 14. This reinforcement consists of fibers, especially glass fibers, which are in the plastic can be mixed in. A fabric construction, in particular in the case of a single-layer arrangement, is also possible, two variants being presented below.
Nach Fig. 3 liegt das Gewebe 15 in einer Kette-Schuss-Anordnung vor, wobei die Kettrichtung A die axiale Richtung und die Schussrichtung B die Umfangsrichtung (Pfeilrichtung) der Außenführung 13 ist.According to FIG. 3, the fabric 15 is in a warp-weft arrangement, the warp direction A being the axial direction and the weft direction B being the circumferential direction (arrow direction) of the outer guide 13.
Nach Fig. 4 hat das Gewebe 16 eine gekreuzte Anordnung.4, the fabric 16 has a crossed arrangement.
Als Grundmaterial für das Gewebe 15 und 16 werden vorzugsweise Glasfasern verwendet.Glass fibers are preferably used as the base material for the fabric 15 and 16.
Die Außenführung aus Kunststoff mit den hier vorgestellten Festigkeitsträgern führen zu einer Reduzierung der Wandstärke und somit zu einer Gewichtsreduzierung. The plastic outer guide with the strength members presented here lead to a reduction in the wall thickness and thus to a weight reduction.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
Luftfederanordnung Luftfederbalg Luftkammer Luftfederdeckel (Luftfedertopf, Druckbehälter) erster Befestigungsbereich Klemmring Luftfederkolben (Abrollkolben, Tauchkolben) Stirnbereich zweiter Befestigungsbereich Klemmring Abrollfläche Schlaufe (Rollfalte) Außenführung Festigkeitsträger Gewebe in Kette-Schuss-Anordnung mit Kettrichtung A und Schussrichtung B Gewebe in gekreuzter Anordnung Air spring arrangement Air bellows Air chamber Air spring cover (air spring cup, pressure container) first fastening area clamping ring Air spring piston (rolling piston, plunger piston) forehead area second fastening area clamping ring Rolling surface loop (roll fold) External guide Strength support fabric in chain-weft arrangement with warp direction A and weft direction B Fabric in a crossed arrangement

Claims

Patentansprüche claims
1. Luftfederanordnung (1), bestehend aus wenigsten folgenden Bauteilen:1. Air spring arrangement (1), consisting of at least the following components:
- einem Luftfederbalg (2) aus elastomerem Werkstoff, der eine volumenelastische Luftkammer (3) einschließt, wobei der Luftfederbalg zumeist mit einem eingebetteten Festigkeitsträger versehen ist, insbesondere in Form von axial verlaufenden Fadenverstärkungen;- An air bellows (2) made of elastomeric material, which includes a volume-elastic air chamber (3), the air bellows is usually provided with an embedded reinforcement, in particular in the form of axially extending thread reinforcements;
- einem Luftfederdeckel (4) mit einem ersten Befestigungsbereich (5), an dem das eine Ende des Luftfederbalges (2) mittels eines Klemmringes (6) oder dergleichen befestigt ist;- An air spring cover (4) with a first fastening area (5) to which one end of the air spring bellows (2) is fastened by means of a clamping ring (6) or the like;
- einem Luftfederkolben (7), umfassend- An air spring piston (7), comprising
• einen Stirnbereich (8), der dem Luftfederdeckel (4) gegenüberliegend angeordnet ist;• an end region (8) which is arranged opposite the air spring cover (4);
• einen zweiten Befestigungsbereich (9), an dem das andere Ende des Luftfederbalges (2) ebenfalls mittels eines Klemmringes (10) oder dergleichen befestigt ist; und• a second fastening area (9), to which the other end of the air bellows (2) is also fastened by means of a clamping ring (10) or the like; and
. eine seitliche Abrollfläche (11), an der der Luftfederbalg (2) unter Bildung einer Schlaufe (12) abrollen kann;, a lateral rolling surface (11) on which the air bellows (2) can roll to form a loop (12);
- sowie aus einer Außenführung (13) für den Luftfederbalg (2);- And from an outer guide (13) for the air bellows (2);
dadurch gekennzeichnet, dasscharacterized in that
- die Außenführung (13) aus Kunststoff mit einem eingebetteten Festigkeitsträger (14) besteht.- The outer guide (13) made of plastic with an embedded reinforcement (14).
Luftfederanordnung nach Anspruch 1 , dadurch gekennzeichnet, dass der Kunststoff ein Polymer mit hoher Schlagzähigkeit ist, vorzugsweise auf der Basis eines Polyamids oder Polyesters. Air spring arrangement according to claim 1, characterized in that the plastic is a polymer with high impact strength, preferably based on a polyamide or polyester.
3. Luftfederanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Festigkeitsträger (14) aus Fasern besteht.3. Air spring arrangement according to claim 1 or 2, characterized in that the strength member (14) consists of fibers.
4. Luftfederanordnung nach Anspruch 3, dadurch gekennzeichnet, dass der Festigkeitsträger (14) aus Glasfasern besteht.4. Air spring arrangement according to claim 3, characterized in that the strength member (14) consists of glass fibers.
5. Luftfederanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Festigkeitsträger (14) in Form eines Gewebes (15, 16) vorliegt.5. Air spring arrangement according to one of claims 1 to 4, characterized in that the strength member (14) is in the form of a fabric (15, 16).
6. Luftfederanordnung nach Anspruch 5, dadurch gekennzeichnet dass das Gewebe (15) in einer Kette-Schuss-Anordnung vorliegt, wobei die Kettrichtung (A) die axiale Richtung und die Schussrichtung (B) die Umfangsrichtung der Außenführung (13) ist.6. Air spring arrangement according to claim 5, characterized in that the fabric (15) is in a warp-weft arrangement, the warp direction (A) the axial direction and the weft direction (B) is the circumferential direction of the outer guide (13).
7. Luftfederanordnung nach Anspruch 5, dadurch gekennzeichnet, dass das Gewebe (16) in gekreuzter Anordnung vorliegt.7. Air spring arrangement according to claim 5, characterized in that the fabric (16) is in a crossed arrangement.
8. Luftfederanordnung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass das Gewebe (15, 16) einlagig angeordnet ist. 8. Air spring arrangement according to one of claims 5 to 7, characterized in that the fabric (15, 16) is arranged in one layer.
EP01931447A 2000-05-02 2001-04-20 External guide from fiber-reinforced plastic for use in a pneumatic spring system Withdrawn EP1192367A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10021020 2000-05-02
DE10021020 2000-05-02
PCT/DE2001/001526 WO2001084010A1 (en) 2000-05-02 2001-04-20 External guide from fiber-reinforced plastic for use in a pneumatic spring system

Publications (1)

Publication Number Publication Date
EP1192367A1 true EP1192367A1 (en) 2002-04-03

Family

ID=7640317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931447A Withdrawn EP1192367A1 (en) 2000-05-02 2001-04-20 External guide from fiber-reinforced plastic for use in a pneumatic spring system

Country Status (4)

Country Link
US (1) US20030102612A1 (en)
EP (1) EP1192367A1 (en)
DE (1) DE10119363A1 (en)
WO (1) WO2001084010A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10321877B4 (en) * 2003-05-15 2005-04-28 Daimler Chrysler Ag Wheel carrier bearing with pendulum plate
DE102006005459A1 (en) 2006-02-07 2007-08-09 Continental Aktiengesellschaft Air spring with external guide
US7506881B2 (en) * 2006-08-30 2009-03-24 Bfs Diversified Products Llc Protective curtain for vehicle suspension components
US7784771B2 (en) * 2007-08-31 2010-08-31 Firestone Industrial Products Company, Llc Spring body for gas spring assembly and method of forming same
DE102010014559A1 (en) * 2010-04-10 2011-10-13 Audi Ag air spring
US20140352528A1 (en) * 2011-06-10 2014-12-04 Maxine C. McKenzie Air spring with constrained elastic sleeve
US10578180B2 (en) * 2011-06-10 2020-03-03 Richard Conaway Air spring with constrained elastic sleeve
DE102013108900B4 (en) * 2013-08-16 2025-01-23 Contitech Luftfedersysteme Gmbh Air spring bellows with supporting fabric and method for producing such a
US10451136B2 (en) * 2017-12-15 2019-10-22 Continental Automotive Systems, Inc. High creep resistance plastic material reinforced rings
DE102019209491A1 (en) 2018-12-18 2020-06-18 Continental Teves Ag & Co. Ohg Air spring with a plastic outer guide
DE102020204753A1 (en) 2020-03-12 2021-09-16 Continental Teves Ag & Co. Ohg Air spring with an external guide and a method for producing an air spring

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2118857A1 (en) * 1970-04-23 1972-01-13 Dunlop Holdings Ltd Pressure medium spring device
DE2064751A1 (en) * 1970-12-31 1972-08-03 Continental Gummi-Werke Ag, 3000 Hannover Textile reinforced rubber bellows - used as vehicle pneumatic suspension
AT340209B (en) * 1975-04-07 1977-12-12 Taurus Gumiipari Vallalat BELLOWS FOR AIR SPRINGS
DE2904522A1 (en) 1979-02-07 1980-08-21 Continental Gummi Werke Ag ROLL BELLOWS FOR VEHICLE AIR SUSPENSIONS
US4722516A (en) * 1986-09-24 1988-02-02 The Goodyear Tire & Rubber Company Air spring with fabric restraining cylinder
DE3643073A1 (en) 1986-12-17 1988-06-30 Phoenix Ag Pneumatic spring
DE3840584A1 (en) * 1988-12-02 1990-06-07 Continental Ag Pressure hose with braiding insert of flat-strip material
DE4136460A1 (en) * 1991-11-06 1993-05-13 Continental Ag ROLLING BALL AIR SPRING MADE OF ELASTOMERIC MATERIAL
DE4423601C2 (en) * 1994-07-06 1997-08-21 Continental Ag Air spring bellows made of elastomeric material
HUP0000477A3 (en) 1996-12-17 2001-02-28 Phoenix Ag Pneumatic suspension system
DE19716250A1 (en) * 1997-04-18 1998-10-22 Contitech Luftfedersyst Gmbh Tubular elastic air spring in vehicle
DE29823508U1 (en) 1998-05-07 1999-08-12 Phoenix Ag, 21079 Hamburg Air spring
DE50006725D1 (en) 1999-01-21 2004-07-15 Phoenix Ag AIR SPRING SYSTEM

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0184010A1 *

Also Published As

Publication number Publication date
DE10119363A1 (en) 2001-11-08
US20030102612A1 (en) 2003-06-05
WO2001084010A1 (en) 2001-11-08

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