EP 0505977 B1 19950524 - Velocity control circuit for hydraulic drives, prefably for hydraulic cylinders.
Title (en)
Velocity control circuit for hydraulic drives, prefably for hydraulic cylinders.
Title (de)
Schaltungsanordnung zur Geschwindigkeitssteuerung von hydraulischen Antrieben, vorzugsweise hydraulischen Arbeitszylindern.
Title (fr)
Système de contrÔle de vitesse pour entraînements hydrauliques de préférence pour vérins hydrauliques.
Publication
Application
Priority
DE 4109754 A 19910325
Abstract (en)
[origin: EP0505977A1] In a velocity control circuit for hydraulic drives, preferably for hydraulic cylinders, in which one drive velocity each, selected and set via a command switch, is allocated to different quantities of the hydraulic medium, the invention is characterised in that, in the inflow and outflow line of the drive (Z), in each case a nozzle (1 to 3; 1' to 3') is allocated to a stage of the drive velocity, and nozzles (1, 1'; 2, 2'; 3, 3') allocated to the same velocity stage are each allocated to a connect-through position of a drive-side distributing slide valve (V1), and the medium passes through the connect-through positions (I to III) of the distributing slide valve (V1) in the direction of increasing or falling velocity graduations in one actuating direction each of the command switch (K). <IMAGE>
IPC 1-7
IPC 8 full level
F15B 11/00 (2006.01); F15B 11/04 (2006.01); F15B 11/042 (2006.01); F15B 11/044 (2006.01); F15B 11/12 (2006.01)
CPC (source: EP KR US)
F15B 11/04 (2013.01 - KR); F15B 11/042 (2013.01 - EP US); F15B 11/044 (2013.01 - EP US); F15B 2211/3051 (2013.01 - EP US); F15B 2211/30525 (2013.01 - EP US); F15B 2211/3127 (2013.01 - EP US); F15B 2211/327 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/411 (2013.01 - EP US); F15B 2211/428 (2013.01 - EP US); F15B 2211/455 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/50518 (2013.01 - EP US); F15B 2211/5153 (2013.01 - EP US); F15B 2211/55 (2013.01 - EP US); F15B 2211/6355 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/75 (2013.01 - EP US); F15B 2211/7741 (2013.01 - EP US)
Designated contracting state (EPC)
ES FR GB GR IT
DOCDB simple family (publication)
EP 0505977 A1 19920930; EP 0505977 B1 19950524; AU 1315792 A 19921001; AU 654846 B2 19941124; BR 9201043 A 19921124; DE 4209472 A1 19921008; ES 2073804 T3 19950816; HU 9200956 D0 19920629; HU T62376 A 19930428; JP H0571504 A 19930323; KR 920019060 A 19921022; RU 2066405 C1 19960910; TR 27218 A 19941120; US 5325761 A 19940705
DOCDB simple family (application)
EP 92105043 A 19920324; AU 1315792 A 19920324; BR 9201043 A 19920325; DE 4209472 A 19920324; ES 92105043 T 19920324; HU 9200956 A 19920323; JP 6754692 A 19920325; KR 920004948 A 19920325; SU 5011367 A 19920324; TR 30392 A 19920325; US 85598092 A 19920323