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1. (WO1992010685) HYDRAULIC SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010685 International Application No.: PCT/DE1991/000976
Publication Date: 25.06.1992 International Filing Date: 14.12.1991
IPC:
E02F 9/22 (2006.01) ,F04B 49/06 (2006.01) ,F04B 49/08 (2006.01) ,F15B 11/16 (2006.01) ,F15B 21/08 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20
Drives; Control devices
22
Hydraulic or pneumatic drives
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
06
Control using electricity
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
49
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups F04B1/-F04B47/196
08
Regulating by delivery pressure
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
16
with two or more servomotors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
21
Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
08
Servomotor systems incorporating electrically- operated control means
Applicants:
BARMAG AG [DE/DE]; Sitz Remscheid Leverkuser Str. 65 Postfach 11 02 40 D-5630 Remscheid 11, DE (AllExceptUS)
EICH, Otwin [DE/DE]; DE (UsOnly)
SALZ, Franz-Peter [DE/DE]; DE (UsOnly)
Inventors:
EICH, Otwin; DE
SALZ, Franz-Peter; DE
Agent:
PFINGSTEN, Dieter; Barmag AG Leverkuser Str. 65 Postfach 11 02 40 D-5630 Remscheid 11, DE
Priority Data:
P 40 40 177.415.12.1990DE
P 41 24 792.226.07.1991DE
Title (DE) HYDRAULIKSYSTEM
(EN) HYDRAULIC SYSTEM
(FR) SYSTEME HYDRAULIQUE
Abstract:
(DE) In einem Hydrauliksystem werden mehrere Verbraucher (4) von einer gemeinsamen Pumpe gespeist. Dabei werden die Verbraucher (4) durch Steuerventile (6) gesteuert. Wenn die abgerufenen Ölströme die maximal förderbare Fördermenge überschreiten, tritt eine Regelung in Funktion, mit der die Sollwertsignale, mit welchen die Ventile (6) angesteuert werden, an den aktuell gemessenen Pumpenförderstrom, vorzugsweise an die Gewichtung des aktuell gemessenen Pumpenförderstroms mit dem maximal vorgegebenen Pumpenförderstrom, angepaßt werden.
(EN) The invention concerns a hydraulic system in which several consumers (4) are powered by a common pump, the consumers (4) being controlled by control valves (6). If the hydraulic-fluid flows called for exceed the maximum flow which can be produced, a correction comes into action with which the reference-value signals by means of which the valves (6) are controlled are adjusted to the currently measured pumping rate, and preferably to the currently measured pumping rate weighted with the maximum prescribed pumping rate.
(FR) Dans un système hydraulique, plusieurs consommateurs (4) sont alimentés par une pompe commune, les consommateurs (4) étant commandés par des soupapes de commande (6). Si les flux d'huile demandés dépassent le débit maximum réalisable, il intervient une régulation selon laquelle les signaux de valeur de consigne, par lesquels les soupapes (6) sont pilotées, sont adaptés au débit de pompage mesuré effectivement, de préférence à la pondération du débit de pompage mesuré effectivement avec le débit de pompage maximum prédéterminé.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0515639US5394696