A hydraulic oil supply device for an industrial vehicle includes a first hydraulic oil tank configured to store hydraulic oil; a second hydraulic oil tank configured to store the hydraulic oil; an upper communication pipe configured to communicate an upper part of the first hydraulic oil tank with an upper part of the second hydraulic oil tank; a lower communication pipe configured to communicate a lower part of the first hydraulic oil tank with a lower part of the second hydraulic oil tank; a first hydraulic oil pipe configured to communicate the first hydraulic oil tank with a hydraulic oil supply target subjected to supplying the hydraulic oil and to be provided, in the first hydraulic oil tank, with a suction port; a second hydraulic oil pipe configured to communicate the hydraulic oil supply target with the second hydraulic oil tank and to be provided, in the second hydraulic oil tank, with a discharge port; and a hydraulic oil pump configured to draw up the hydraulic oil from the first hydraulic oil tank. The second hydraulic oil tank is an airtight tank sealed hermetically against outside air, the upper communication pipe has a first open-end portion provided inside the first hydraulic oil tank and a second open-end portion provided inside the second hydraulic oil tank, the first open-end portion has an opening height higher than an opening height of the suction port, and the second open-end portion has an opening height higher than an opening height of the discharge port.
HYDRAULIC OIL SUPPLY DEVICE FOR INDUSTRIAL VEHICLE
HYDRAULIKÖLZUFUHRVORRICHTUNG FÜR EIN NUTZFAHRZEUG
DISPOSITIF D'ALIMENTATION EN HUILE HYDRAULIQUE POUR VÉHICULE INDUSTRIEL
2025-05-07
Patent
Electronic Resource
English
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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |