DE19911620B4 - Air suspension system - Google Patents
Air suspension system Download PDFInfo
- Publication number
- DE19911620B4 DE19911620B4 DE19911620A DE19911620A DE19911620B4 DE 19911620 B4 DE19911620 B4 DE 19911620B4 DE 19911620 A DE19911620 A DE 19911620A DE 19911620 A DE19911620 A DE 19911620A DE 19911620 B4 DE19911620 B4 DE 19911620B4
- Authority
- DE
- Germany
- Prior art keywords
- shock absorber
- funnel
- shaped
- suspension system
- air
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- 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
- F16F9/02—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
- F16F9/42—Cooling arrangements
-
- 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
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/314—The spring being a pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/129—Damper mount on wheel suspension or knuckle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
-
- 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
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/70—Temperature of vehicle part or in the vehicle
- B60G2400/71—Temperature of vehicle part or in the vehicle of suspension unit
- B60G2400/712—Temperature of vehicle part or in the vehicle of suspension unit of spring
- B60G2400/7122—Fluid spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/70—Temperature of vehicle part or in the vehicle
- B60G2400/71—Temperature of vehicle part or in the vehicle of suspension unit
- B60G2400/716—Temperature of vehicle part or in the vehicle of suspension unit of damper
- B60G2400/7162—Fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Luftfederungssystem
(2) nach dem Patent Nr. 197 40 798 mit einer Luftfeder (16) und
einem darin integrierten Stoßdämpfer (18),
wobei die Luftfeder (16) aus einem Rollbalg (4), einem Abrollkolben
(6) und einer mit einem Aufsatz (20) versehenen Abdeckplatte (8) besteht,
und wobei ein düsenförmig sich
konisch verjüngender,
trichterförmiger
Einsatz (22), das Rohr des Stoßdämpfers (18)
zumindest teilweise umgibt,
dadurch gekennzeichnet,
– dass die
zwischen Rollbalg (4) und Aufsatz (20) befindliche Abdeckplatte
(8) den trichterförmigen
Einsatz (22) aufweist.Air suspension system (2) according to the Patent No. 197 40 798 with an air spring (16) and a shock absorber (18) integrated therein, wherein the air spring (16) from a rolling bellows (4), a rolling piston (6) and one with a top (20) provided cover plate (8), and wherein a nozzle-shaped conically tapered funnel-shaped insert (22), the tube of the shock absorber (18) at least partially surrounds,
characterized,
- That between the rolling bellows (4) and attachment (20) located cover plate (8) has the funnel-shaped insert (22).
Description
Die Erfindung handelt von einem Luftfederungssystem gemäß dem Oberbegriff des Anspruchs 1 und ist Zusatz zum Patent Nr. 197 40 798.The The invention relates to an air suspension system according to the preamble of claim 1 and is addition to patent No. 197 40 798.
Solch ein Luftfederungssystem besteht aus einer Luftfeder, die im wesentlichen einen Rollbalg und einen Abrollkolben umfaßt, und einem Stoßdämpfer. In diesem Stoßdämpfer wird während des Ein- und Ausfederns Schwingungsenergie in Wärme umgewandelt. Die so erzeugte Wärme gilt es abzuführen.Such An air suspension system consists of an air spring, which is essentially a rolling bellows and a rolling piston, and a shock absorber. In this shock absorber will while the compression and rebound vibration energy is converted into heat. The so produced Heat applies to dissipate it.
Zum
Stand der Technik wird auf die im Hauptpatent genannte
Wie bereits dem Hauptpatent so liegt auch dieser Zusatzanmeldung die Aufgabe zugrunde, den Stoßdämpfer komplett innerhalb einer Luftfeder anzuordnen. Dabei soll auch hier eine hinreichende Wärmeabfuhr von dem Stoßdämpfer gewährleistet sein.As already the main patent so also this additional application is the Task underlying the shock absorber completely to be arranged inside an air spring. Here is one here adequate heat dissipation be ensured by the shock absorber.
Der wesentliche Kern des Hauptpatents besteht darin, daß Luftfederbalg- und Abrollkolbenvolumen erfindungsgemäß durch eine zwischen Balg- und Kolbenvolumen befindliche Düse miteinander verbunden sind, durch die eine Luftzirkulation angeregt wird, die zur Kühlung eines innenliegenden Stoßdämpfers dient.Of the essential core of the main patent is that air bellows and rolling piston volume according to the invention by a between bellows and Piston volume located nozzle are interconnected, stimulated by the air circulation that is for cooling an internal shock absorber is used.
Bei großen Federwegen ist es aufgrund der damit verbundenen Verwinkelung zwischen Luftfederabrollkolben und Stoßdämpferrohr kaum möglich, eine Düse zwischen Luftfederbalg- und Abrollkolbenvolumen anzuordnen.at huge Spring travel is due to the associated Verwinkelung between Air spring rolling piston and shock absorber tube hardly possible, one Nozzle between To arrange air spring bellows and rolling piston volume.
Da der Stoßdämpfer wegen der großen Federwege weit über den oberen Rand des Luftfederbalges hinaussteht, ergibt sich ein großer Aufsatz, ein sogenannter „Stoßdämpferdom". Gemäß der mit Anspruch 1 gegebenen weiteren Ausbildung wird das Volumen des Stoßdämpferdoms so ausgebildet, dass die obere Balgbefestigung zur Aufnahme einer erfindungsgemäßen Kühldüse geeignet ist. Als Verbindung zwischen Luftfederbalg und Fahrgestellrahmen sind Bördelplatte, Konusplatte, einvulkanisierte Platte und Spannring gebräuchlich. Mit allen vieren ist es möglich, eine Kühldüse einzubauen. Die Düse befindet sich zwischen Stoßdämpferdom – einerseits und Rollbalg – und Abrollkolbenvolumen andererseits. Bei Ein- und Ausfederungsvorgängen erfolgt eine Luftströmung durch die Düse, wodurch eine Abkühlung des Stoßdämpfers bewirkt wird.There the shock absorber the big Spring travel way over emerges from the upper edge of the air spring bellows, resulting in a greater Attachment, a so-called "shock absorber dome" 1 given further training is the volume of the shock absorber dome designed so that the upper Belgbefestigung suitable for receiving a cooling nozzle according to the invention is. As a connection between air spring bellows and chassis frame are crimping plate, Cone plate, vulcanized plate and clamping ring in use. With all fours it is possible to install a cooling nozzle. The nozzle is located between shock absorber dome - on the one hand and Rolling bellows - and Rolling piston volume on the other. In rebound and rebound operations is a airflow through the nozzle, causing a cooling the shock absorber causes becomes.
D.h.: Auch mit der nachfolgend beschriebenen Ausbildung des erfindungsgemäßen Luftfederungssystems wird die von einem handelsüblichen, in die Luftfeder integrierten Ein- oder Zweirohrstoßdämpfer erzeugte Wärme durch Konvektion abgeführt. Erfindungsgemäß wird auch hier die Funktion zweier Bauteile (Feder und Dämpfer) in einem einzigen Aggregat räumlich zusammengefaßt.ie .: Also with the below-described embodiment of the air suspension system according to the invention becomes that of a commercial, in the air spring integrated one or two-tube shock produced Heat through Convection removed. Also according to the invention Here the function of two components (spring and damper) in a single unit spatial summarized.
Dadurch, dass auch der weitergebildete Stoßdämpfer komplett innerhalb der Luftfeder angeordnet ist, steht auch in diesem Fall am Montageband eine einzige einbaufertige Komponente zur Verfügung. Dies hält die Anzahl der Montageschritte und damit die Verweildauer am Montageband gering.Thereby, that also the educated shock absorber completely within the Air spring is arranged, is also in this case on the assembly line a only ready-to-install component available. This keeps the number the assembly steps and thus the residence time on the assembly line low.
Die gesamte Einbauhöhe ist nicht größer als die Länge des Stoßdämpfers, so daß ein Einbau insbesondere an der Hinterachse von Nutzfahrzeugen problemlos möglich ist.The total installation height is not bigger than that Length of the shock absorber so that one Installation especially on the rear axle of commercial vehicles easily possible is.
Durch die düsenförmige Verengung des Einsatzes ergibt sich beim Ein- und Ausfedern ein Luftstrom entlang der Außenwand des Stoßdämpfers.By the nozzle-shaped narrowing the insert results in a compression and rebound airflow along the outside wall of the shock absorber.
Sind die äußeren Öffnungen des Einsatzes ebenfalls trichterförmig (aber der inneren trichterförmigen Verengung entgegengesetzt) ausgebildet, so wird beim Ein- und Ausfedern eine erhöhte Luftzirkulation erreicht.are the outer openings the insert also funnel-shaped (but the inner funnel-shaped narrowing formed opposite), so when compression and rebound a increased Air circulation achieved.
Wählt man für das innere trichterförmige Teilstück des Einsatzes ein flexibles Material aus, so wird auch bei extremen Torkelbewegungen der Luftfeder eine Zerstörung des Einsatzes vermieden.You choose for the inner funnel-shaped section The use of a flexible material, so even at extreme Storkelbewegungen the air spring avoided destruction of the insert.
Die mit der Zusatzanmeldung gegebene weitere Ausbildung der Erfindung wird anhand der Abbildung näher erläutert.The with the additional application given further embodiment of the invention becomes closer to the illustration explained.
Luftfedern
Eine
derartige Luftfeder
Konusplatte
Die öffnung der
sonst üblicherweise
druckdichten Konusplatte
In
dem dargestellten Ausführungsbeispiel
ist nicht nur der innere Bereich des Einsatzes
Die
Wirkungsweise des erfindungsgemäß kühlbaren
Luftfedersystems
Beim
Einfedern wird der Rollbalg
Unterstellt
man in grober Näherung
ideale Verhältnisse,
so ist nach Bernoulli der sich aus statischem Druck und Staudruck
zusammensetzende Gesamtdruck p = p0 + ρv2/2 konstant, was bedeutet, daß am Düsenausgang
Beim
Ausfedern wirkt der entgegengesetzt orientierte äußere Trichter
- 22
- LuftfederungssystemAir suspension system
- 44
- Rollbalg, Luftfederbalgbellows, suspension bellows
- 66
- Abrollkolbenroll-off
- 88th
- Konusplatte, AbdeckplatteCone plate, cover
- 1010
- Bodenplattebaseplate
- 1212
- Rollbalg-Innenraum, Volumen des RollbalgsBellows interior, Volume of the rolling bellows
- 1414
- Abrollkölben-Innenraum, Volumen des AbrollkolbensAbrollkölben interior, Volume of the rolling piston
- 1616
- Luftfederair spring
- 1818
- Stoßdämpfer, StoßfängerShock absorbers, bumpers
- 2020
- Fortsatz, Aufsatz, StoßdämpferdomExtension Tower, shock absorber dome
- 2222
- Einsatzcommitment
- 2424
- Verengung, innerer Trichterconstriction inner funnel
- 2626
- öffnungenopenings
- 2828
- äußerer Trichterouter funnel
- 3030
- Luftzirkulation, StrömungspfeileAir circulation, flow arrows
- 3232
- Volumen des Stoßdämpferdomsvolume of the bumper dome
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19911620A DE19911620B4 (en) | 1997-09-17 | 1999-03-16 | Air suspension system |
CA002272830A CA2272830C (en) | 1997-09-17 | 1999-05-26 | Air spring system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19740798A DE19740798B4 (en) | 1997-09-17 | 1997-09-17 | Air suspension system |
DE19911620A DE19911620B4 (en) | 1997-09-17 | 1999-03-16 | Air suspension system |
US09/317,187 US6089552A (en) | 1997-09-17 | 1999-05-24 | Air spring system |
CA002272830A CA2272830C (en) | 1997-09-17 | 1999-05-26 | Air spring system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19911620A1 DE19911620A1 (en) | 2000-09-21 |
DE19911620B4 true DE19911620B4 (en) | 2006-08-24 |
Family
ID=32096929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19911620A Expired - Lifetime DE19911620B4 (en) | 1997-09-17 | 1999-03-16 | Air suspension system |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2272830C (en) |
DE (1) | DE19911620B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006040804A1 (en) | 2006-08-31 | 2008-03-06 | Zf Friedrichshafen Ag | air spring |
DE102013212974A1 (en) * | 2012-08-21 | 2014-05-22 | Continental Teves Ag & Co. Ohg | Air suspension module |
CN112248736B (en) * | 2020-10-24 | 2023-03-14 | 安徽思诺物流装备有限公司 | Air spring suspension system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1043425A (en) * | 1962-11-24 | 1966-09-21 | Bosch Gmbh Robert | Improvements in suspension systems |
-
1999
- 1999-03-16 DE DE19911620A patent/DE19911620B4/en not_active Expired - Lifetime
- 1999-05-26 CA CA002272830A patent/CA2272830C/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1043425A (en) * | 1962-11-24 | 1966-09-21 | Bosch Gmbh Robert | Improvements in suspension systems |
Also Published As
Publication number | Publication date |
---|---|
CA2272830A1 (en) | 2000-11-26 |
CA2272830C (en) | 2007-07-31 |
DE19911620A1 (en) | 2000-09-21 |
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