Nacelle for a wind turbine

1. A nacelle for a wind turbine, the nacelle comprising:

a nacelle housing;

a rotor hub; and

a rotor bearing for bearing the rotor hub on the nacelle housing;

wherein the rotor bearing has at least one inner ring element and at least one outer ring element;

wherein at least one oil-lubricated sliding bearing element of the rotor bearing is formed between the inner ring element and the outer ring element;

wherein a sealing element is formed between the nacelle housing and the rotor hub and/or between the nacelle housing and a rotor shaft;

wherein the sealing element seals a lubricating oil sump in the rotor hub;

wherein the lubricating oil sump serves to receive that lubricating oil which serves for the lubrication of the oil-lubricated sliding bearing element;

wherein in the operating state, the lubricating oil sump is filled with lubricating oil up to a lubricating oil level; and

wherein a sliding surface of the oil-lubricated sliding bearing element is at least partially below the lubricating oil level.

2. The nacelle according to claim 1 , wherein the sealing element is designed as an axial seal, which is arranged between a front side of the nacelle housing and a front side of the rotor hub.

3. The nacelle according to claim 1 , wherein the sealing element is designed as a radial seal, which is arranged between the nacelle housing and the rotor hub and/or between the nacelle housing and the rotor shaft.

4. The nacelle according to claim 1 , wherein the sealing element is designed as a mechanical end-face seal.

5. The nacelle according to claim 1 , wherein the sealing element comprises at least two segments, which can be put over the rotor shaft in a radial direction.

6. The nacelle according to claim 1 , wherein the sealing element is provided in the form of a labyrinth seal.

7. The nacelle according to claim 6 , wherein the labyrinth seal has a return line which leads into the lubricating oil sump.

8. The nacelle according to claim 1 , wherein the sealing element is accommodated in the nacelle housing and the rotor hub can be rotated relative to the sealing element.

9. The nacelle according to claim 1 , wherein the sealing element contacts a sealing surface, which is movable relative to the sealing element, wherein the sealing surface has a sliding lacquer coating.

10. The nacelle according to claim 1 , wherein a sliding sleeve is arranged on the rotor hub or on the rotor shaft, which sliding sleeve cooperates with the sealing element.

11. The nacelle according to claim 1 , wherein an oil drip element in the form of a plunge-cut groove or of an elevation is formed on the rotor shaft.

12. The nacelle according to claim 1 , wherein two sealing elements, which are axially spaced apart from each other, are formed.