IT1262428B - Complesso di sospensioni pneumatiche per autoveicoli da carico. - Google Patents

Complesso di sospensioni pneumatiche per autoveicoli da carico.

Info

Publication number
IT1262428B
IT1262428B ITRM930743A ITRM930743A IT1262428B IT 1262428 B IT1262428 B IT 1262428B IT RM930743 A ITRM930743 A IT RM930743A IT RM930743 A ITRM930743 A IT RM930743A IT 1262428 B IT1262428 B IT 1262428B
Authority
IT
Italy
Prior art keywords
valve
opening
complex
main chamber
pneumatic suspensions
Prior art date
Application number
ITRM930743A
Other languages
English (en)
Inventor
Emanuel Groll
Jochen Horwath
Hans-Christian Pflug
Klaus Russ
Dieter Ziegler
Original Assignee
Daimler Benz 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 Daimler Benz Ag filed Critical Daimler Benz Ag
Publication of ITRM930743A0 publication Critical patent/ITRM930743A0/it
Publication of ITRM930743A1 publication Critical patent/ITRM930743A1/it
Application granted granted Critical
Publication of IT1262428B publication Critical patent/IT1262428B/it

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
    • B60G17/015—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 the regulating means comprising electric or electronic elements
    • B60G17/0152—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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0155—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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
    • 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
    • B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
    • 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
    • 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
    • F16F9/049—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 multi-chamber units
    • 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
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/412—Pneumatic actuator
    • 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)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invenzione concerne un complesso di sospensioni pneumatiche con una camera principale che modifica il suo volume in presenza di frecce elastiche nonché con una camera ausiliaria presentante un volume sostanzialmente costante, la quale è collegabile con la camera principale ed è separabile da essa tramite una valvola, in modo che la progressività della sospensione possa essere modificata mediante apertura e rispettivamente mediante chiusura della detta valvola. Secondo l'invenzione è previsto che questa valvola presenti una posizione di apertura praticamente non parzializzata, a partire dalla quale essa può essere rapidamente chiusa; al contrario, l'apertura della valvola avviene con ritardo in quanto, per il ritardo di una compensazione di pressione tra la camera principale e la camera ausiliaria, viene percorsa prima una fase di preapertura che consente soltanto piccoli flussi.
ITRM930743A 1992-11-17 1993-11-10 Complesso di sospensioni pneumatiche per autoveicoli da carico. IT1262428B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4238790A DE4238790C2 (de) 1992-11-17 1992-11-17 Luftfederaggregat

Publications (3)

Publication Number Publication Date
ITRM930743A0 ITRM930743A0 (it) 1993-11-10
ITRM930743A1 ITRM930743A1 (it) 1995-05-10
IT1262428B true IT1262428B (it) 1996-06-19

Family

ID=6473108

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930743A IT1262428B (it) 1992-11-17 1993-11-10 Complesso di sospensioni pneumatiche per autoveicoli da carico.

Country Status (4)

Country Link
DE (1) DE4238790C2 (it)
FR (1) FR2698143B1 (it)
GB (1) GB2272499B (it)
IT (1) IT1262428B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608617A1 (de) * 1996-03-06 1997-09-11 Linke Hofmann Busch Verfahren zur Verbesserung des Fahrkomforts
DE19651673A1 (de) * 1996-12-12 1998-06-18 Wabco Gmbh Mit Druckmittel arbeitende Federeinrichtung für ein Fahrzeug
DE19710399C2 (de) * 1997-03-13 1999-05-20 Continental Ag Anordnung mit einer Luftfeder und einem Zusatzvolumen
SE513416C2 (sv) * 1997-12-18 2000-09-11 Volvo Lastvagnar Ab Förfarande för höjning och sänkning av ett fordonschassi
DE10336342B4 (de) * 2003-08-08 2016-04-28 Bayerische Motoren Werke Aktiengesellschaft Luftfedersystem für ein Fahrzeug-Fahrwerk
DE10348952B4 (de) * 2003-10-18 2013-05-23 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug mit Luftfederung und einem Achsträger
DE102005060581B4 (de) * 2005-12-17 2015-09-24 Continental Teves Ag & Co. Ohg Luftfeder- und Dämpfereinheit mit vorgesteuertem Hauptventil
DE102012214569B3 (de) * 2012-08-16 2013-10-31 Ford Global Technologies, Llc Luftfeder- und Dämpfereinheit mit Höhenverstellung
DE102016112307A1 (de) * 2016-07-05 2018-01-11 Progress-Werk Oberkirch Aktiengesellschaft Verfahren zum Herstellen eines Druckbehälters sowie derartiger Druckbehälter

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081780B (de) * 1956-04-19 1960-05-12 Wilhelm Herm Mueller & Co K G Luftfederung fuer Fahrzeuge
US2860889A (en) * 1956-12-27 1958-11-18 Westinghouse Electric Corp Vehicle stabilizer, tilter, and leveling device
DE1094785B (de) * 1957-08-28 1960-12-15 Knorr Bremse Gmbh Drucksicherungseinrichtung, insbesondere fuer die Luftfederung von Schienenfahrzeugen
FR1277895A (fr) * 1960-01-26 1961-12-01 Dewandre Co Ltd C Système de suspension pneumatique pour véhicules
GB1026167A (en) * 1961-10-25 1966-04-14 Bridgestone Tire Co Ltd Gas suspension device for a vehicle with variable throttling means
DE1144127B (de) * 1961-12-09 1963-02-21 Daimler Benz Ag Luftfederung fuer Fahrzeuge
DE1530632A1 (de) * 1965-11-04 1970-03-12 Daimler Benz Ag Pneumatische oder hydropneumatische Federung fuer Fahrzeuge,insbesondere fuer Kraftfahrzeuge zur Personenbefoerderung
JPS6099107U (ja) * 1983-12-14 1985-07-06 トヨタ自動車株式会社 空気ばね式サスペンシヨン
IT1178992B (it) * 1984-06-27 1987-09-16 Fiat Auto Spa Molla pneumatica a rigidezza variabile particolarmente per sospensioni di veicoli
DE3544474A1 (de) * 1985-12-16 1987-06-19 Anton Ing Grad Pfeifer Fahrzeugstossdaempfer
GB8531465D0 (en) * 1985-12-20 1986-02-05 Rubery Owen Rockwell Ltd Trailers
JPS61180034A (ja) * 1986-02-12 1986-08-12 Mitsubishi Motors Corp ばね定数可変型サスペンシヨン
US4844428A (en) * 1987-03-31 1989-07-04 Aisin Seiki Kabushiki Kaisha Air spring assembly
DE4018712A1 (de) * 1990-06-12 1991-12-19 Bosch Gmbh Robert Luftfeder mit umschaltbarer federsteifigkeit
DE4124516A1 (de) * 1990-09-07 1992-03-26 Iveco Magirus Mehrstufige luftfeder, insbesondere fuer eine luftgefederte fahrzeugachse eines nutzfahrzeuges

Also Published As

Publication number Publication date
GB2272499B (en) 1995-11-15
ITRM930743A0 (it) 1993-11-10
DE4238790A1 (de) 1994-05-19
FR2698143B1 (fr) 1995-03-31
GB2272499A (en) 1994-05-18
FR2698143A1 (fr) 1994-05-20
DE4238790C2 (de) 1996-07-25
GB9322938D0 (en) 1994-01-05
ITRM930743A1 (it) 1995-05-10

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971127