EP 0897062 A3 19991201 - Pressure control circuit for more than one hydraulic pump with a pressure averager
Title (en)
Pressure control circuit for more than one hydraulic pump with a pressure averager
Title (de)
Druckregelkreis für mehrere Hydropumpen mit Druckmittler
Title (fr)
Circuit de contrÔle de pression pour plusieures pompes hydrauliques avec un transmetteur de pression moyenne
Publication
Application
Priority
DE 19735110 A 19970813
Abstract (en)
[origin: EP0897062A2] The pressure regulating device (1) has at least one setting device (6a,b) for setting the displacement volume of the hydro-pumps (2a,b) and a hydraulic regulator (30,11a,b,19a,b,20a,b) controlling the setting devices, provided with a pressure equaliser (30) coupled to the working line pressures (P1,P2) and having a source (33) employing an electromagnet, providing an electrical signal representing the mean pressure.
IPC 1-7
IPC 8 full level
F04B 49/00 (2006.01); F04B 49/12 (2006.01)
CPC (source: EP US)
F04B 49/002 (2013.01 - EP US); F04B 49/12 (2013.01 - EP US); F04B 2205/05 (2013.01 - EP); F04B 2207/01 (2013.01 - EP)
Citation (search report)
- [XA] US 4248573 A 19810203 - UEHARA KAZUO, et al
- [XY] DE 4018700 A1 19911212 - LINDE AG [DE]
- [Y] EP 0144788 A1 19850619 - HYDROMATIK GMBH [DE]
- [DA] EP 0133870 A1 19850313 - HYDROMATIK GMBH [DE]
- [DA] DE 3407827 A1 19841004 - HYDROMATIK GMBH [DE]
- [A] EP 0610940 A1 19940817 - DAEWOO HEAVY IND CO LTD [KR]
- [A] BRUECKLE F.: "Energy efficient pumps and controls for multiple pump excavator circuits", PROCEEDINGS OF THE NATIONAL CONFERENCE ON FLUID POWER, vol. 34, 1981, Cleveland, Ohio, pages 77 - 103, XP002117376
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0897062 A2 19990217; EP 0897062 A3 19991201; EP 0897062 B1 20030903; DE 19735110 A1 19990225; DE 19735110 B4 20040916; DE 59809468 D1 20031009
DOCDB simple family (application)
EP 98113906 A 19980724; DE 19735110 A 19970813; DE 59809468 T 19980724