# US 9,039,369 B2 · Wind turbine nacelle with cooler top > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,369 B2 - Document ID: US9039369B2 - Status: Granted - Kind: B2 - Application number: 13/146,773 - Filed: 2010-01-29 - Published: 2012-04-12 - Granted: 2015-05-26 - Earliest claimed: 2009-01-30 - Assignees: Vestas Wind Systems A/S - Applicants: Krishnamoorthi Sivalingam; Anand Bahuguni; Ravi Kandasamy; Srikanth Narasimalu; John K. Grevsen; Jesper Nyvad; Paul T. Tietze - Inventors: Krishnamoorthi Sivalingam; Anand Bahuguni; Ravi Kandasamy; Srikanth Narasimalu; John K. Grevsen; Jesper Nyvad; Paul T. Tietze - Web page: https://patentgrep.com/patent/US9039369B2 ## CPC - F03D 80/60: Cooling or heating of wind motors - F03D 13/40: Arrangements or methods specially adapted for transporting wind motor components - F05B 2260/64: Aeration, ventilation, dehumidification or moisture removal of closed spaces - Y02E 10/72: Wind turbines with rotation axis in wind direction - F03D: WIND MOTORS - F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present invention relates to a wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising a cooling device extending from the top face of the nacelle and a cover having at least one inner face. The cooling device is enclosed by the top face of the nacelle and the inner face of the cover. ## Claims ### Claim 1 A wind turbine nacelle having a top exterior face with a longitudinal extension in a wind direction, comprising: a cooling device extending outwardly from the top face of the nacelle and being directly exposed to ambient wind flow, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle. ### Claim 2 (depends on 1) The wind turbine nacelle according to claim 1, further comprising a plurality of cooling devices arranged with a mutual distance, and the distance between two cooling device is between 20 and 200 mm. ### Claim 3 (depends on 1) A wind turbine comprising a wind turbine nacelle according to claim 1. ### Claim 4 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein the cooling device has a first face which is pivotably connected to the cover. ### Claim 5 (depends on 4) The wind turbine nacelle according to claim 4, wherein the first face is a top face of the cooling device, which top face is the face of the cooling device furthest away from the top face of the nacelle. ### Claim 6 (depends on 4) The wind turbine nacelle according to claim 4, wherein the first face is a first side face of the cooling device. ### Claim 7 (depends on 6) The wind turbine nacelle according to claim 6, wherein the cooling device has a second side face opposite the first side face, the first and second side faces being pivotably connected to the cover so that access can be gained by pivoting the cooling device. ### Claim 8 (depends on 4) The wind turbine nacelle according to claim 4, wherein the first face is a bottom face of the cooling device, which bottom face is the face of the cooling device closest to the top face of the nacelle. ### Claim 9 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein the cooling device has a centre of gravity and is connected with another part of the cooling device, the cover, or the top face of the nacelle in its centre of gravity. ### Claim 10 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein the movable part is a first part of the cooling device which is slidable in relation to a second part of the cooling device so that the first part is able to partly overlap the second part. ### Claim 11 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein the movable part is a door or a hatch pivotably connected to the cooling device or the cover. ### Claim 12 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein the cooling device is connected with another part of the cooling device, the cover, or the top face of the nacelle in at least one connection having a damper using hydraulic, pneumatic, or rubber, or a spring to control the movement of the cooling device. ### Claim 13 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, wherein at least one part of the cover is movable in relation to another part of the cover, the cooling device, or the top face of the nacelle. ### Claim 14 (depends on 13) The wind turbine nacelle according to claim 13, wherein the movable part of the cover is a hatch in the top of the cover. ### Claim 15 (depends on 13) The wind turbine nacelle according to claim 13, wherein the entire cover is movable, the entire cover thus constituting the movable part of the cover, the cover being pivotably connected to the nacelle. ### Claim 16 A wind turbine nacelle having a top face with a longitudinal extension in a wind direction, comprising: a cooling device extending from the top face of the nacelle, and a cover having at least one inner face, the cooling device being enclosed by the top face of the nacelle and the inner face of the cover, wherein at least one part of the cooling device is movable in relation to another part of the cooling device, the cover, or the top face of the nacelle, further comprising a plurality of cooling devices arranged with a mutual distance, and the distance between two cooling device is between 20 and 200 mm, wherein a hinge connection is arranged between at least two cooling devices. ### Claim 17 (depends on 16) The wind turbine nacelle according to claim 16, wherein the hinge connection is arranged at a top and at a bottom of the cooling devices. ### Claim 18 (depends on 16) The wind turbine nacelle according to claim 16, wherein the hinge connection comprises at least two corrugated metal pipes, the corrugated metal pipes being connected to and extending between the cooling devices, and the corrugated metal pipes preferably being made of stainless steel.