EP2558743A2 - Ressort pneumatique - Google Patents

Ressort pneumatique

Info

Publication number
EP2558743A2
EP2558743A2 EP11710432A EP11710432A EP2558743A2 EP 2558743 A2 EP2558743 A2 EP 2558743A2 EP 11710432 A EP11710432 A EP 11710432A EP 11710432 A EP11710432 A EP 11710432A EP 2558743 A2 EP2558743 A2 EP 2558743A2
Authority
EP
European Patent Office
Prior art keywords
air spring
spring
air
piston
level
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Withdrawn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
EP11710432A
Other languages
German (de)
English (en)
Inventor
Marco Willems
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 EP2558743A2 publication Critical patent/EP2558743A2/fr
Withdrawn legal-status Critical Current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
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
    • 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
    • F16F9/05—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 the flexible wall being of the rolling diaphragm type
    • 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
    • F16F9/38—Covers for protection or appearance

Definitions

  • the invention relates to an air spring, in particular for sprung suspension of motor vehicle suspensions, with one, an air spring piston with an air spring cover to connect a dense air chamber cylindrical see Heilfederrollbalg of elastomeric material, changing the Heilrelimmervolumens between a level at a sprung air spring piston and a level
  • Air bellows must absorb the resulting from the internal pressure axial and radial forces.
  • the present invention seeks to provide an air spring in which the work that must apply the outer guide during compression process is reduced to a minimum and a simpler design of the air spring is achieved.
  • the air spring according to the invention is characterized in that the outer guide has an integrated in the elastomer hose, with sprung air spring piston on train resilient coil spring, and that the outer guide is connected to both the air spring cover and the air spring base, the axial length of the outer guide according to Spring movement of the air spring is variable.
  • This embodiment of the air spring is in an advantageous manner achieved that the work to be applied to the axial deformation of the outer guide in the region of the construction position is reduced, and at the same time the construction is simplified by omitting the usual Switzerlanddorf- feather.
  • An advantageous embodiment of the air spring according to the invention is characterized in that both the coil spring and the elastomeric tube are biased into the outer guide, wherein the bias and the spring rate and the spring stiffness of the coil spring and the bias and the spring rate and the spring stiffness of Elastomerschlauchs are chosen so that cancel the spring rates of the coil spring and the elastomeric hose at a lying between the level at sprung air spring piston and the level at the spring-loaded air spring piston normal level around the outer guide, whereby the response of the formed from the elastomeric tube and the coil spring total improves significantly becomes.
  • a further advantageous embodiment of the air spring according to the invention is characterized in that the elastomer hose forms a Elastomermatirx that forms a smooth surface for rolling the Luftfederroll- bellows, so that the air bag receives a prolonged life, because the mechanical stress is reduced in the spring operations.
  • a further advantageous embodiment of the inventive air spring is characterized in that the Lucasfederrollbalg has an axial thread reinforcement. Since the pure axial thread reinforcement of the air spring bellows is optimal from the point of view of harshness, it is an advantage of the outer guide according to the invention that such a configuration of the air spring bellows is made possible.
  • Figure 1 shows a schematic representation of an air spring according to the invention in the rebounded state
  • Figure 2 shows a schematic representation of the outer guide and the bellows in the rebound state, the remaining parts of the air spring are omitted
  • Figure 3 shows the air spring according to the invention in the spring-loaded state
  • FIG. 4 shows an outer guide and the air spring bellows in FIG
  • Figure 1 shows schematically the essential parts of an air spring 2, which has an air spring cover 4 and an air spring base 6, which is connected in the case of an air spring 2 for a motor vehicle application to the body of the motor vehicle.
  • an air spring base 6 of the air spring piston 8 At the air spring base 6 of the air spring piston 8 is mounted, which forms a volume variable air chamber 12 together with an air spring bellows 10.
  • the air spring bellows 10 is fastened on the one hand to the air spring cover 4 and on the other hand to the inside end of the air spring piston 8.
  • the air bag 10 is supported by an outer guide 14 radially outward.
  • the outer guide 14 comprises an elastomer tube 16 as a matrix material and a coil spring 18 which is integrated into the elastomer tube 16.
  • the outer guide 14, which consists of the elastomeric tube 16 and the integrated coil spring is connected to both the air spring cover 4 and the air spring base 6.
  • Both the coil spring 18 and the elastomer tube are biased into the outer guide 14, wherein the bias and the spring rate the spiral spring 18 and the bias and the spring rates of the elastomeric tube 16 are selected so that the spring rates of the coil spring 18 and the E lastlastschlauch 16 at a lying between the level at a compressed air spring piston and the level at Sprungfedertem air spring piston normal level around the outer guide 14th picking up around.
  • the bias of the coil spring 18 is selected so that the coil spring at the compressed level of the air spring piston 8 to pressure, at Sprungfederten level of the air spring piston 8 to train and at the normal level of the air spring piston 8 is charged to pressure. Is.
  • the bias of the elastomeric tube 16 is selected so that the elastomeric tube 16 is loaded at the Kitschederten level of the air spring piston 8 without bias, at Sprungfederten level of the air spring piston 8 to train and at the normal level of the air spring piston 8 to train.
  • the coil spring 18 is a thin plastic or metal spring having a low spring stiffness, and the elastomeric tube 16 is made of a thin elastomeric matrix so that the spring stiffness values of all the elastomeric tube 16 and the coil spring 18 can be matched.
  • the elastomeric tube 16 is formed as an elastomer matrix, the elastomeric tube 16 on its inner side provides a smooth surface for the unrolling of the air spring bellows 10.
  • the coil spring 18 is shown clearly visible in the elastomeric tube 16.
  • the Heilfederrollbalg 10 has a pure axial thread structure, which is not shown in the plan view of Figure 2.
  • FIGS. 3 and 4 show the air spring 2 according to FIG. 1 and the schematic representation according to FIG. 2 in the compressed state of the air spring 2. It can be seen from the comparison of FIGS. 1 and 3 that the axial length of the outer guide 14 corresponds to FIG Spring movement of the air spring 2 and the air spring piston 8 is variable. The axial length of the outer guide 14 is significantly longer in Figure 1 than in Figure 3, and the difference in length is received by the elastomeric tube 16 and the coil spring 18 together.

Landscapes

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

Abstract

L'invention concerne un ressort pneumatique, en particulier pour des suspensions de roue montées sur ressort de châssis de véhicule automobile, comprenant un soufflet roulant de ressort pneumatique (10) cylindrique, reliant un piston à ressort pneumatique (8) à un couvercle de ressort pneumatique (4) pour former une chambre d'air étanche (12), et à base de matériau élastomère, qui roule en modifiant le volume de chambre d'air entre un niveau avec piston à ressort pneumatique (8) comprimé et un niveau avec piston à ressort pneumatique (8) décomprimé et en formant un pli roulant avec sa surface d'enveloppe extérieure côté piston à ressort pneumatique sur le piston à ressort pneumatique (8) et côté couvercle à ressort pneumatique sur un guide extérieur (14), le guide extérieur (14) présentant un flexible élastomère (16) avec une insertion de renfort. Le guide extérieur (14) comprend un ressort en spirale intégré dans le flexible élastomère (16), pouvant être sollicité en traction lorsque le piston à ressort pneumatique est comprimé, et celui-ci est relié aussi bien au couvercle de ressort pneumatique (4) qu'au fond de ressort pneumatique (6), la longueur de construction axiale du guide extérieur (14) étant variable en fonction du déplacement du ressort pneumatique (2).
EP11710432A 2010-04-10 2011-03-10 Ressort pneumatique Withdrawn EP2558743A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010014559A DE102010014559A1 (de) 2010-04-10 2010-04-10 Luftfeder
PCT/EP2011/001376 WO2011124325A2 (fr) 2010-04-10 2011-03-10 Ressort pneumatique

Publications (1)

Publication Number Publication Date
EP2558743A2 true EP2558743A2 (fr) 2013-02-20

Family

ID=44041578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710432A Withdrawn EP2558743A2 (fr) 2010-04-10 2011-03-10 Ressort pneumatique

Country Status (5)

Country Link
EP (1) EP2558743A2 (fr)
KR (1) KR20130006688A (fr)
CN (1) CN102834640B (fr)
DE (1) DE102010014559A1 (fr)
WO (1) WO2011124325A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102370375B1 (ko) * 2015-05-12 2022-03-04 삼성전자주식회사 적응적인 순서로 결정되는 블록을 이용하여 영상을 부호화 또는 복호화하는 방법 및 장치
CN105156579B (zh) * 2015-09-01 2017-04-26 上海交通大学 一种减振抗冲击液压缸及其抗冲击方法
US10525785B2 (en) 2016-09-22 2020-01-07 Beijingwest Industries Co., Ltd. Air suspension assembly
DE102018207076B4 (de) * 2018-05-07 2022-02-24 Audi Ag Luftfeder, insbesondere für ein Fahrzeug, Fahrzeug mit wenigstens einer solchen Luftfeder sowie Verfahren zum Betreiben einer solchen Luftfeder
DE102022210872A1 (de) 2022-10-13 2024-04-18 Continental Automotive Technologies GmbH Luftfedereinrichtung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878012A (en) * 1954-07-15 1959-03-17 Rockwell Standard Co Bellows damper
JPS6049145B2 (ja) * 1980-01-26 1985-10-31 日本電気硝子株式会社 結晶化ガラスの製造方法
FR2507516A1 (fr) * 1981-06-16 1982-12-17 Fiz Tekhn I Ak Procede d'usinage par electroerosion de materiaux electroconducteurs et dispositif pour sa mise en oeuvre
JPS5843813A (ja) * 1981-09-09 1983-03-14 Yamaha Motor Co Ltd 車両の緩衝装置
JPS6049145A (ja) * 1983-08-25 1985-03-18 Kayaba Ind Co Ltd 油圧緩衝器の懸架ばね
JPS62155345A (ja) * 1985-12-26 1987-07-10 Daihatsu Motor Co Ltd サスペンシヨン
US4741517A (en) * 1986-09-24 1988-05-03 The Goodyear Tire & Rubber Company Air spring with extensible fabric restraining cylinder
GB9801135D0 (en) * 1998-01-21 1998-03-18 Rover Group An air spring for a motor vehicle
US6511057B1 (en) * 1998-12-03 2003-01-28 Phoenix Aktiengesellschaft Pneumatic suspension system
EP1192367A1 (fr) * 2000-05-02 2002-04-03 Phoenix AG Guide externe constitue de matiere plastique renforcee par des fibres et destine a un dispositif de suspension pneumatique
US20040026836A1 (en) * 2002-08-07 2004-02-12 Brookes Graham R. Vehicle suspension system
JP2004156663A (ja) * 2002-11-05 2004-06-03 Bridgestone Corp 空気ばね
DE10323332A1 (de) 2003-05-23 2004-12-09 Bayerische Motoren Werke Ag Luftfeder
DE102004023561A1 (de) * 2004-05-13 2005-12-08 Vibracoustic Gmbh & Co. Kg Luftfederanordnung
US20060208402A1 (en) * 2005-03-21 2006-09-21 Arvinmeritor Technology, Llc Air spring protector
DE102005026314C5 (de) * 2005-06-07 2008-09-25 Lkh-Kunststoffwerk Gmbh & Co. Kg Tauchkolben aus Kunststoff für eine Luftfeder
DE102006046560A1 (de) * 2006-09-30 2008-04-03 Bayerische Motoren Werke Ag Luftfeder, insbesondere für das Fahrwerk eines Fahrzeugs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2011124325A2 *

Also Published As

Publication number Publication date
KR20130006688A (ko) 2013-01-17
CN102834640A (zh) 2012-12-19
WO2011124325A2 (fr) 2011-10-13
DE102010014559A1 (de) 2011-10-13
CN102834640B (zh) 2015-03-11
WO2011124325A3 (fr) 2013-02-28

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