EP 1045993 A1 20001025 - CONTROL ARRANGEMENT FOR A HYDRAULIC MOTOR
Title (en)
CONTROL ARRANGEMENT FOR A HYDRAULIC MOTOR
Title (de)
STEUERVORRICHTUNG FÜR EINEN HYFRAULIKMOTOR
Title (fr)
MECANISME DE COMMANDE DE MOTEUR HYDRAULIQUE
Publication
Application
Priority
- DE 19800722 A 19980112
- DK 9900011 W 19990108
Abstract (en)
[origin: DE19800722A1] A control arrangement for a hydraulic motor, which is, at least in one working direction, loadable by an external force, with a control valve (3) having in this working direction an inflow control throttle (5) in an inflow path (6), and a return control throttle (7) in a return path (8). Further, a load retaining valve (10) is arranged in the return path (8), which is loaded in the closed position by its outlet pressure (PF) and a spring (11) and in the opening direction by the motor inflow pressure (PA). Besides, means are provided for increasing the pressure drop between load retaining valve (10) and tank connection (T) to a value higher than the pressure drop between pump connection (P) and inflow motor connection (A). This gives a better stabilisation towards oscillations.
IPC 1-7
IPC 8 full level
B66C 13/18 (2006.01); B66F 9/22 (2006.01); E02F 9/22 (2006.01); F15B 13/01 (2006.01)
CPC (source: EP)
B66C 13/066 (2013.01); B66C 13/18 (2013.01); B66F 9/22 (2013.01); E02F 9/226 (2013.01); F15B 11/003 (2013.01); F15B 13/01 (2013.01); F15B 2211/50545 (2013.01)
Citation (search report)
See references of WO 9935406A1
Designated contracting state (EPC)
AT DE IT
DOCDB simple family (publication)
DE 19800722 A1 19990715; DE 19800722 B4 20040819; AU 1960499 A 19990726; EP 1045993 A1 20001025; WO 9935406 A1 19990715
DOCDB simple family (application)
DE 19800722 A 19980112; AU 1960499 A 19990108; DK 9900011 W 19990108; EP 99900441 A 19990108