EP 1651870 B1 20070502 - HYDRAULIC CONTROL SYSTEM FOR BUILDING MACHINERY, PARTICULARLY EXCAVATORS
Title (en)
HYDRAULIC CONTROL SYSTEM FOR BUILDING MACHINERY, PARTICULARLY EXCAVATORS
Title (de)
HYDRAULISCHES STEUERSYSTEM FÜR BAUMASCHINEN, INSBESONDERE FÜR BAGGER
Title (fr)
SYSTEME DE COMMANDE HYDRAULIQUE POUR ENGINS DE CONSTRUCTION, EN PARTICULIER POUR EXCAVATEURS
Publication
Application
Priority
- DE 2004001513 W 20040713
- DE 10336334 A 20030808
Abstract (en)
[origin: WO2005015030A1] The invention relates to a hydraulic control system for building machinery, particularly for controlling hydraulic consumers of an excavator. According to the invention, pump channels P1 (17.3) and P2 (17.4) which ensure that the hydraulic consumers are supplied in parallel by means of the spool valve of the main control unit (2) of the piece of building machinery are provided in addition to previously existing pump channels P01 (17.1) and P02 (17.2) that ensure that said hydraulic consumers are serially supplied with a hydraulic fluid. The additional pump channels P1(17.3) and P2 (17.4) are arranged parallel to the previously existing ones.
IPC 8 full level
F15B 11/17 (2006.01); F15B 11/16 (2006.01)
CPC (source: EP US)
F15B 11/16 (2013.01 - EP US); F15B 11/17 (2013.01 - EP US); F15B 13/0871 (2013.01 - EP); F15B 2211/20576 (2013.01 - EP US); F15B 2211/3053 (2013.01 - EP US); F15B 2211/3116 (2013.01 - EP US); F15B 2211/3144 (2013.01 - EP US); F15B 2211/31582 (2013.01 - EP US); F15B 2211/329 (2013.01 - EP US); F15B 2211/50518 (2013.01 - EP US); F15B 2211/50536 (2013.01 - EP US); F15B 2211/528 (2013.01 - EP US); F15B 2211/6054 (2013.01 - EP US); F15B 2211/6355 (2013.01 - EP US); F15B 2211/71 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005015030 A1 20050217; AT E361430 T1 20070515; DE 10336334 B3 20050804; DE 502004003704 D1 20070614; EP 1651870 A1 20060503; EP 1651870 B1 20070502; ES 2282884 T3 20071016; JP 2007501914 A 20070201; JP 4691492 B2 20110601; US 2007056437 A1 20070315; US 7475502 B2 20090113
DOCDB simple family (application)
DE 2004001513 W 20040713; AT 04762373 T 20040713; DE 10336334 A 20030808; DE 502004003704 T 20040713; EP 04762373 A 20040713; ES 04762373 T 20040713; JP 2006522211 A 20040713; US 56780504 A 20040713