Patent ID: 8508060

Claim:
A hydraulic supply unit for lubricating and/or cooling mechanical and electrical components disposed in a nacelle of a wind power plant, and for supplying hydraulic actuating devices with hydraulic fluid, comprising; a tank divided into chambers and including: a first chamber for providing oil lubricating a gearbox of a wind power plant, a second chamber, fluidly isolated from the first chamber, for providing hydraulic oil used to operate hydraulic actuating devices of the wind power plant, a first connection for connecting the first chamber to a line for supplying the gearbox with lubricating oil, and a second connection for connecting the second chamber to a line for supplying the hydraulically operated actuating devices with hydraulic oil, and a heat exchanger for dissipating heat from the hydraulic oil, the lubricating oil and a coolant that is fed to the heat exchanger and absorbs lost heat at electrical components of the wind power plant, wherein the hydraulic supply unit is pre-assembled and can be tested as a functional unit prior to being installed in the wind power plant.