Patent ID: 11971095
Assignee: DEERE & COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 16:
17. A hydraulic arrangement for an agricultural or industrial utility vehicle, comprising:
a main hydraulic circuit and a main hydraulic pump, wherein hydraulic fluid can be fed to the main hydraulic circuit by the main hydraulic pump;
a charge pump, wherein hydraulic fluid can be fed to the main hydraulic pump by the charge pump;
a lubricating hydraulic circuit and a gearbox lubricating hydraulic circuit, wherein at least a part of the hydraulic fluid delivered by the charge pump can be fed to the lubricating hydraulic circuit;
a shifting hydraulic circuit for shifting a gearbox;
a gearbox pump, wherein hydraulic fluid can be fed to the shifting hydraulic circuit by the gearbox pump;
a first valve unit which has an inlet connected to the charge pump and an outlet connected to the gearbox lubricating hydraulic circuit, wherein the first valve unit is actuable to control the connection between the charge pump and the gearbox lubricating hydraulic circuit; and
a second valve unit which has an inlet connected to the gearbox pump and an outlet connected to the gearbox lubricating hydraulic circuit, wherein the second valve unit is actuable to control the connection between the gearbox pump and the gearbox lubricating hydraulic circuit.