EP 0227716 B1 19890208 - SWITCHING ARRANGEMENT FOR THE HYDRAULIC SUPPLY OF AGGREGATE OF A LOADER
Title (en)
SWITCHING ARRANGEMENT FOR THE HYDRAULIC SUPPLY OF AGGREGATE OF A LOADER
Publication
Application
Priority
DE 3516429 A 19850508
Abstract (en)
[origin: WO8606772A1] In order to obtain a switching arrangement of the hydraulic supply of aggregates of a loader, such as traction motors, bucket loaders fitted with crushers, cylinder and piston units and the like, which can cover all loading needs for which a loader is required in practice, at any time and with a minimum of equipment, the present switching arrangement comprises a pair of pumps having different powers. Said pumps (2, 3) are coupled to a main control valve (4) which, in its first position, connects the pump (2) having a higher power to the control valve (5) of the traction motors and the pump (3) of lesser power to the control valve (6) of the cylinder and piston unit. In its second position, the main control valve (4) connects the pump (2) of higher power to the control valves (6, 7) of the cylinder and piston units and of the crushers, and the pump (3) of lesser power to the control valve (5) of the traction motors.
IPC 1-7
IPC 8 full level
CPC (source: EP)
E02F 9/2239 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01)
Designated contracting state (EPC)
BE GB
DOCDB simple family (publication)
WO 8606772 A1 19861120; DE 3516429 A1 19861113; EP 0227716 A1 19870708; EP 0227716 B1 19890208; SU 1595347 A3 19900923
DOCDB simple family (application)
EP 8600240 W 19860419; DE 3516429 A 19850508; EP 86903295 A 19860419; SU 4028944 A 19870107