EP 1188934 A3 20040121 - Control device for an hydraulic volume flow
Title (en)
Control device for an hydraulic volume flow
Title (de)
Steuerungsvorrichtung für einen hydraulischen Volumenstrom
Title (fr)
Dispositif de commande du volume d'un flux hydraulique
Publication
Application
Priority
DE 10045213 A 20000913
Abstract (en)
[origin: EP1188934A2] The control device controls a pump with at least one hydraulic cylinder (12) under load, e.g. for raising and lower a load, with at least one locking valve (18) and at least one hydraulic motor (20). A pressure reducing valve (22) is fitted between the cylinder and the hydraulic motor to reduce the pressure on the hydraulic motor when the load is being lowered.
IPC 1-7
IPC 8 full level
F15B 11/00 (2006.01); F15B 11/028 (2006.01); F15B 21/14 (2006.01)
CPC (source: EP)
F15B 11/003 (2013.01); F15B 11/028 (2013.01); F15B 21/14 (2013.01)
Citation (search report)
- [XY] US 5419411 A 19950530 - HASEGAWA FUMINORI [JP]
- [X] DE 4140408 A1 19930609
- [X] SU 735560 A1 19800525 - GO I INZH VODNOGO TRANSPORTA [SU]
- [X] DE 2618046 A1 19771110 - JONSSON SVEN O I
- [AY] AU 7232781 A 19820819 - GROH WEST PTY LTD
- [AY] US 2594626 A 19520429 - EARLE CLARENCE E
- [A] US 2493111 A 19500103 - COURTOT LOUIS B
- [A] CH 405851 A 19660115 - GUNZENHAUSER AG J & R [CH]
- [A] PATENT ABSTRACTS OF JAPAN vol. 009, no. 207 (P - 382) 24 August 1985 (1985-08-24)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1188934 A2 20020320; EP 1188934 A3 20040121; DE 10045213 A1 20020328
DOCDB simple family (application)
EP 01121812 A 20010911; DE 10045213 A 20000913