EP 0000287 A1 19790110 - A hydro-pneumatic spring suspension strut for motor vehicles.
Title (en)
A hydro-pneumatic spring suspension strut for motor vehicles.
Title (de)
Hydropneumatisches Federbein für Fahrzeuge.
Title (fr)
Jambe de suspension hydropneumatique pour véhicule.
Publication
Application
Priority
HU AU000377 A 19770630
Abstract (en)
A hydro-pneumatic spring suspension strut for vehicles provides damping limited proportionally to the load, and comprises an hydraulic telescopic oneway shock absorber (3) and a load bearing pneumatic spring (2). The gas space of the pneumatic spring (2) is bounded by a rolling membrane (6) and rigid walls (4, 7) fixable to the vehicle body and wheels. The shock absorber cylinder (22) is connected to an auxiliary membrane (15) open to the pressure prevailing inside the pneumatic spring (2) to urge the cylinder (22) in the direction of extension of the strut (1, 35, 41) and to bear against a piston column (5) in the strut (1, 35, 41) the oscillation of which is to be damped. The auxiliary membrane (15) enables the cylinder (22) to move relative to the piston column (5) when its biasing force is balanced by the damping force of the shock absorber (3).
IPC 1-7
IPC 8 full level
B60G 11/27 (2006.01); B60G 15/12 (2006.01); B60G 17/015 (2006.01); B60G 17/04 (2006.01); B60G 17/08 (2006.01); F16F 9/084 (2006.01); F16F 9/512 (2006.01)
CPC (source: EP US)
B60G 11/27 (2013.01 - EP US); B60G 15/12 (2013.01 - EP US); B60G 17/04 (2013.01 - EP US); F16F 9/084 (2013.01 - EP US); F16F 9/5123 (2013.01 - EP US); B60G 2202/314 (2013.01 - EP US); B60G 2204/128 (2013.01 - EP US); B60G 2204/41 (2013.01 - EP US); Y10S 267/01 (2013.01 - EP US)
Citation (search report)
- DE 1003608 B 19570228 - METALLGUMMI GMBH
- US 3140098 A 19640707 - BROADWELL ROBERT J
- FR 2064601 A6 19710723 - ALLINQUANT FERNAND, et al
- US 3178167 A 19650413 - OF MENAR ALEXANDER V LOEWIS
- FR 2097305 A5 19720303 - ALLINQUANT FERNAND, et al
- [A] DE 1087466 B 19600818 - BETEILIGUNGS & PATENTVERW GMBH
- [A] DE 1480170 A1 19700611 - SCHOPF WALTER
- [A] CH 359984 A 19620131 - SCHWEIZ WAGONS AUFZUEGEFAB [CH]
- [A] FR 2038840 A5 19710108 - ALLINQUANT FERNAND MICHE, et al
Designated contracting state (EPC)
BE CH DE FR GB NL SE
DOCDB simple family (publication)
EP 0000287 A1 19790110; EP 0000287 B1 19820217; BG 41477 A3 19870615; CS 222266 B2 19830624; DE 2861632 D1 19820325; DK 151247 B 19871116; DK 151247 C 19880411; DK 295578 A 19781231; HU 174666 B 19800328; IT 1206581 B 19890427; IT 7883412 A0 19780629; JP S5470520 A 19790606; JP S6127201 B2 19860624; PL 128434 B1 19840131; PL 208072 A1 19790226; RO 76797 A 19810530; US 4325541 A 19820420
DOCDB simple family (application)
EP 78300106 A 19780629; BG 4026278 A 19780630; CS 430578 A 19780629; DE 2861632 T 19780629; DK 295578 A 19780629; HU AU000377 A 19770630; IT 8341278 A 19780629; JP 7880378 A 19780630; PL 20807278 A 19780630; RO 9451778 A 19780630; US 13849580 A 19800409