The invention relates to a hydraulic control system of a hoist drive of a lifting frame of an industrial truck, wherein the control system has a directional control valve device which is connected with a delivery line of a hydraulic pump, a reservoir line leading to a reservoir and a connecting line leading to the hoist drive, wherein the directional control valve device is configured to control the lifting operation and the lowering operation of the hoist drive. The control system has a pressure protection valve that is associated with the connecting line, wherein the pressure protection valve is configured to limit a peak pressure introduced into the lifting frame in the event of a fault scenario of the directional control valve device.
HYDRAULISCHES STEUERUNGSSYSTEM EINES HUBANTRIEBS EINES HUBGERÜSTES EINES FLURFÖRDERZEUGS UND FLURFÖRDERZEUG
HYDRAULIC CONTROL SYSTEM OF A LIFT DRIVE OF A LIFTING FRAME OF A FORKLIFT AND FORKLIFT
SYSTÈME DE COMMANDE HYDRAULIQUE D'UN ENTRAÎNEMENT DE LEVAGE D'UN CHÂSSIS DE LEVAGE D'UN CHARIOT DE MANUTENTION ET CHARIOT DE MANUTENTION
2024-12-25
Patent
Electronic Resource
German
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
European Patent Office | 2023
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