EP 1577257 B1 20090114 - Hydraulic lifting device for battery-powered industrial vehicle
Title (en)
Hydraulic lifting device for battery-powered industrial vehicle
Title (de)
Hydraulische Hubvorrichtung für batteriebetriebene Flurförderzeuge
Title (fr)
Appareil de levage hydraulique pour chariot élévateur électrique
Publication
Application
Priority
DE 102004011913 A 20040311
Abstract (en)
[origin: EP1577257A2] The device has a hydraulic pump (5) coupled to an electric machine. The pump provides pressure medium being sucked from a tank for consumers. A lifting valve and a check valve (17) are disposed in a pressurizing or lifting conduit to a lifting cylinder. A lowering branch is connected between the lifting cylinder and the check valve. The lifting valve is disposed downstream from branching of a conduit.
IPC 8 full level
B66F 9/22 (2006.01); F15B 11/16 (2006.01)
CPC (source: EP US)
B66F 9/22 (2013.01 - EP US); F15B 11/163 (2013.01 - EP US); F15B 11/165 (2013.01 - EP US); F15B 2211/20515 (2013.01 - EP US); F15B 2211/20538 (2013.01 - EP US); F15B 2211/253 (2013.01 - EP US); F15B 2211/30535 (2013.01 - EP US); F15B 2211/50536 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 1577257 A2 20050921; EP 1577257 A3 20050928; EP 1577257 B1 20090114; DE 102004011913 A1 20051013; DE 102004011913 B4 20051229; DE 502005006449 D1 20090305; US 2005198950 A1 20050915; US 7181910 B2 20070227
DOCDB simple family (application)
EP 05004255 A 20050226; DE 102004011913 A 20040311; DE 502005006449 T 20050226; US 7551105 A 20050309