EP 0191275 A1 19860820 - Anti-saturation system for hydraulic control circuits for working members of earth-moving machines.
Title (en)
Anti-saturation system for hydraulic control circuits for working members of earth-moving machines.
Title (de)
Anti-Sättigungssystem für hydraulische Steuerkreisläufe von Arbeitsgeräten von Erdbewegungsmaschinen.
Title (fr)
Système d'anti-saturation des circuits hydrauliques de commande pour les outils d'engins de terrassement.
Publication
Application
Priority
IT 6714985 A 19850214
Abstract (en)
An anti-saturation system for hydraulic control circuits with pumps and pressure-compensated distributors (3, 4) for working members (1, 2) of earth-moving machines, including depressurising valve means (10) which, in the event of a decrease in the difference between the pressure delivered by the pump (6, 7) and that of the working members (1, 2), act to reduce the delivery supplied to the working members (1, 2) by the respective distributors (3, 4).
IPC 1-7
IPC 8 full level
E02F 3/30 (2006.01); E02F 3/32 (2006.01); E02F 9/22 (2006.01); F15B 11/05 (2006.01); F15B 11/16 (2006.01)
CPC (source: EP)
E02F 9/2217 (2013.01); E02F 9/2232 (2013.01); E02F 9/226 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 11/163 (2013.01); F15B 11/166 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/212 (2013.01); F15B 2211/30535 (2013.01); F15B 2211/3111 (2013.01); F15B 2211/329 (2013.01); F15B 2211/50536 (2013.01); F15B 2211/6054 (2013.01); F15B 2211/7058 (2013.01); F15B 2211/7142 (2013.01)
Citation (search report)
- [X] US 3916624 A 19751104 - MACHENS KARL-HEINZ, et al
- [X] US 3156098 A 19641110 - LA ROU ALBERT M
- [X] GB 911053 A 19621121 - PARKER HANNIFIN CORP
- [A] GB 1057752 A 19670208 - ORENSTEIN & KOPPEL AG
- [A] US 3543646 A 19701201 - IIJIMA KATSUHIKO
- [A] US 4343152 A 19820810 - HABIGER CYRIL W
- [A] US 4139987 A 19790220 - BUDZICH TADEUSZ
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0191275 A1 19860820; EP 0191275 B1 19891004; AT E46940 T1 19891015; DE 3573453 D1 19891109; IT 1234937 B 19920602; IT 8567149 A0 19850214
DOCDB simple family (application)
EP 85830286 A 19851120; AT 85830286 T 19851120; DE 3573453 T 19851120; IT 6714985 A 19850214