Hydraulic unit for battery powered warehouse vehicle e.g. forklift truck, has electrical drive machine in form of synchronous machine stimulated by permanent magnets with drive connection to hydraulic machine

摘要

The hydraulic unit supplies a working hydraulic arrangement with at least one hydraulic load and has at least one electrical drive machine with a drive connection to a hydraulic machine. The electric drive machine is in the form of a synchronous machine stimulated by permanent magnets. Alternatively, the electric drive machine is in the form of an electronically commutated d.c. machine