ITMI911541A1 - PNEUMATIC SPRING WITH Switchable stiffness - Google Patents
PNEUMATIC SPRING WITH Switchable stiffnessInfo
- Publication number
- ITMI911541A1 ITMI911541A1 IT001541A ITMI911541A ITMI911541A1 IT MI911541 A1 ITMI911541 A1 IT MI911541A1 IT 001541 A IT001541 A IT 001541A IT MI911541 A ITMI911541 A IT MI911541A IT MI911541 A1 ITMI911541 A1 IT MI911541A1
- Authority
- IT
- Italy
- Prior art keywords
- pneumatic spring
- switchable
- stiffness
- switchable stiffness
- pneumatic
- Prior art date
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
- 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
- B60G17/019—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 type of sensor or the arrangement thereof
- B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
-
- 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
- B60G17/048—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics with the regulating means inside the fluid springs
- B60G17/0485—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics with the regulating means inside the fluid springs the springs being pneumatic springs with a flexible wall, e.g. with levelling valves
-
- 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
-
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
-
- 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
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/154—Fluid spring with an accumulator
-
- 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
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/11—Mounting of sensors thereon
- B60G2204/111—Mounting of sensors thereon on pneumatic 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
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- 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)
- Combined Devices Of Dampers And Springs (AREA)
- Level Indicators Using A Float (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4018712A DE4018712A1 (en) | 1990-06-12 | 1990-06-12 | Air spring with variable stiffness for motor vehicle - has rigid-walled auxiliary air chamber surrounding main air chamber adjusted by level of liq. filling |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI911541A0 ITMI911541A0 (en) | 1991-06-05 |
ITMI911541A1 true ITMI911541A1 (en) | 1992-12-05 |
IT1247985B IT1247985B (en) | 1995-01-05 |
Family
ID=6408215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI911541A IT1247985B (en) | 1990-06-12 | 1991-06-05 | PNEUMATIC SPRING WITH Switchable stiffness |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE4018712A1 (en) |
FR (1) | FR2663100B1 (en) |
IT (1) | IT1247985B (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4204939C2 (en) * | 1992-02-19 | 1999-05-20 | Continental Ag | Air spring or air spring damper unit with an air bellows made of elastomeric material |
DE4238790C2 (en) * | 1992-11-17 | 1996-07-25 | Daimler Benz Ag | Air suspension unit |
FR2715108B1 (en) * | 1994-01-17 | 1996-04-05 | Peugeot | Suspension device for a motor vehicle. |
DE19704433C2 (en) * | 1997-02-06 | 2001-06-13 | Daimler Chrysler Ag | Air spring with a variable air chamber delimited by a roller bellows for cushioning the wheels of motor vehicles |
DE19710399C2 (en) * | 1997-03-13 | 1999-05-20 | Continental Ag | Arrangement with an air spring and an additional volume |
WO2000075527A1 (en) * | 1999-06-09 | 2000-12-14 | Speirs Robertson And Company Limited | Low profile damped air filled vibration isolator |
DE19961719A1 (en) | 1999-12-21 | 2001-07-05 | Daimler Chrysler Ag | Spring damper system with hose bellows |
US6402128B1 (en) | 2000-01-31 | 2002-06-11 | The Goodyear Tire And Rubber Company | Air spring with lateral restraint and axial control |
DE10025749C1 (en) * | 2000-05-24 | 2001-10-31 | Continental Ag | Valve used in vehicle pneumatic springs, comprises a star-shaped nozzle having a valve seat and concentric arms having a specified length and width |
DE10126458C2 (en) | 2001-05-31 | 2003-06-12 | Daimler Chrysler Ag | Tightness and functional testing of a check valve in a pneumatic suspension |
US6698730B2 (en) | 2001-10-04 | 2004-03-02 | Bfs Diversified Products, Llc | Dual rate air spring |
US8464850B2 (en) | 2006-11-16 | 2013-06-18 | Fox Factory, Inc. | Gas spring curve control in an adjustable-volume gas-pressurized device |
US7703585B2 (en) | 2002-06-25 | 2010-04-27 | Fox Factory, Inc. | Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring |
US20080296814A1 (en) | 2002-06-25 | 2008-12-04 | Joseph Franklin | Gas spring with travel control |
US10941828B2 (en) | 2002-06-25 | 2021-03-09 | Fox Factory, Inc. | Gas spring with travel control |
US7963509B2 (en) | 2007-01-31 | 2011-06-21 | Fox Factory, Inc. | Travel control for a gas spring and gas spring having very short travel modes |
DE10257009A1 (en) * | 2002-12-06 | 2004-06-17 | Continental Aktiengesellschaft | Air spring cover with extra volume and method for its production |
DE10319568B4 (en) * | 2003-04-30 | 2006-11-23 | Man Nutzfahrzeuge Ag | Air spring for a motor vehicle |
DE102007060102A1 (en) | 2007-12-13 | 2009-06-18 | Continental Aktiengesellschaft | Suspension device of a wheeled vehicle |
DE102007060703A1 (en) | 2007-12-17 | 2009-06-25 | Continental Aktiengesellschaft | Method for controlling a motor vehicle chassis |
US8403115B2 (en) | 2008-01-11 | 2013-03-26 | Penske Racing Shocks | Dual rate gas spring shock absorber |
DE102011107970B4 (en) | 2011-07-20 | 2015-05-21 | Vibracoustic Cv Air Springs Gmbh | Sensor for detecting the level position of a supported by an air spring structure, in particular a motor vehicle |
DE202012103305U1 (en) * | 2012-08-30 | 2012-09-12 | Contitech Luftfedersysteme Gmbh | Air suspension system for a rail vehicle |
DE102013100295B4 (en) * | 2013-01-11 | 2023-03-30 | Miro Gudzulic | Air suspension system for a vehicle |
WO2015172004A1 (en) * | 2014-05-09 | 2015-11-12 | Firestone Industrial Products Company, Llc | Gas spring end members as well as gas spring assemblies including same |
US10508703B2 (en) * | 2015-01-12 | 2019-12-17 | Firestone Industrial Products Company, Llc | Lateral support elements, gas spring assemblies, suspension systems and methods |
CN106369098B (en) * | 2016-10-08 | 2018-09-25 | 西南交通大学 | A kind of novel air spring of two stage stiffness automatic adjusument |
US10900538B2 (en) | 2018-10-29 | 2021-01-26 | Continental Automotive Systems, Inc. | Pressure relief for air springs |
CN113623348B (en) * | 2021-08-20 | 2022-08-26 | 西南交通大学 | Air spring and railway vehicle |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1243388A (en) * | 1958-12-29 | 1960-10-07 | Ganz Vagon Es Gepgyar | Device for adjusting the level of a vehicle with air mattress suspension |
DE1275882B (en) * | 1961-03-18 | 1968-08-22 | Daimler Benz Ag | Air suspension for vehicles, in particular for motor vehicles |
DE1144127B (en) * | 1961-12-09 | 1963-02-21 | Daimler Benz Ag | Air suspension for vehicles |
BE635155A (en) * | 1962-07-20 | |||
FR1369405A (en) * | 1963-05-27 | 1964-08-14 | Advanced air suspension for vehicles | |
US4386791A (en) * | 1981-07-06 | 1983-06-07 | Ford Motor Company | Actively controlled suspension system and height sensor |
JPS6099107U (en) * | 1983-12-14 | 1985-07-06 | トヨタ自動車株式会社 | air spring suspension |
IT1178992B (en) * | 1984-06-27 | 1987-09-16 | Fiat Auto Spa | VARIABLE STRENGTH PNEUMATIC SPRING PARTICULARLY FOR VEHICLE SUSPENSIONS |
-
1990
- 1990-06-12 DE DE4018712A patent/DE4018712A1/en not_active Withdrawn
-
1991
- 1991-05-30 FR FR9106510A patent/FR2663100B1/en not_active Expired - Fee Related
- 1991-06-05 IT ITMI911541A patent/IT1247985B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT1247985B (en) | 1995-01-05 |
FR2663100B1 (en) | 1993-02-19 |
FR2663100A1 (en) | 1991-12-13 |
ITMI911541A0 (en) | 1991-06-05 |
DE4018712A1 (en) | 1991-12-19 |
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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: 19960514 |