EP 1046003 A1 20001025 - CONTROL VALVE FOR A HYDRAULIC MOTOR
Title (en)
CONTROL VALVE FOR A HYDRAULIC MOTOR
Title (de)
STEUERVENTIL EINES HYDROMOTORS
Title (fr)
SOUPAPE DE COMMANDE DE MOTEUR HYDRAULIQUE
Publication
Application
Priority
- DE 19800720 A 19980112
- DK 9900010 W 19990108
Abstract (en)
[origin: DE19800720A1] A control valve for a hydraulic motor with a slide (3) extending in a housing bore (2), the slide having on both sides of a neutral position working areas, each allocated to a working direction, in which working areas an inflow throttle (14, 15) and approximately at the same time also a return throttle (18, 19) open after passing through a deadband (c). The return throttle (18, 19) is open in the neutral position and closes on passing through the deadband (c). Thus, a pressure-relief valve can drain off pressure fluid to the tank in the neutral position under maintenance of the good control properties.
IPC 1-7
IPC 8 full level
F15B 13/04 (2006.01); F16K 11/07 (2006.01)
CPC (source: EP)
F15B 13/04 (2013.01); F15B 13/0402 (2013.01)
Citation (search report)
See references of WO 9935424A1
Designated contracting state (EPC)
DE IT SE
DOCDB simple family (publication)
DE 19800720 A1 19990715; DE 19800720 C2 20011031; AU 1960399 A 19990726; DE 69916573 D1 20040527; DE 69916573 T2 20040819; EP 1046003 A1 20001025; EP 1046003 B1 20040421; WO 9935424 A1 19990715
DOCDB simple family (application)
DE 19800720 A 19980112; AU 1960399 A 19990108; DE 69916573 T 19990108; DK 9900010 W 19990108; EP 99900440 A 19990108