US 12,110,874 B2
Nacelle for a wind turbine
Johannes Sebastian Hoelzl, Berg im Attergau (AT)
Assigned to Miba Gleitlager Austria GmbH, Laakirchen (AT)
Appl. No. 17/295,183
Filed by Miba Gleitlager Austria GmbH, Laakirchen (AT)
PCT Filed Dec. 9, 2019, PCT No. PCT/AT2019/060425
§ 371(c)(1), (2) Date May 19, 2021,
PCT Pub. No. WO2020/118333, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. A 51113/2018 (AT), filed on Dec. 13, 2018.
Prior Publication US 2022/0010784 A1, Jan. 13, 2022
Int. Cl. F03D 80/70 (2016.01); F03D 1/00 (2006.01); F16J 15/16 (2006.01)
CPC F03D 80/70 (2016.05) [F03D 1/101 (2023.08); F05B 2240/50 (2013.01); F05B 2240/57 (2013.01); F05B 2260/98 (2013.01); F16C 2300/14 (2013.01); F16C 2360/31 (2013.01); F16J 15/164 (2013.01)] 12 Claims
OG exemplary drawing
 
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.