Patent ID: 11905153
Assignee: JUNGHEINRICH AKTIENGESELLSCHAFT
Field: Handling (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 1:
2. The industrial truck according to claim 1, wherein the hydraulic system comprises a hydraulic pump that is integrated in a hydraulic feed line and is configured to apply pressurized hydraulic fluid to the at least one mast lift cylinder and the at least one free lift cylinder in the load lifting operation, wherein the hydraulic feed line branches between the hydraulic pump and the lift cylinders into a first and a second supply branch, wherein the first supply branch runs to the free lift cylinder and the second supply branch runs to the mast lift cylinder, and wherein a lifting valve designed as a proportional valve is integrated in the hydraulic feed line with which a ratio between the volumetric flows in the first and in the second supply branch is changeable.