Patent ID: 11885309
Assignee: VESTAS WIND SYSTEMS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 14:
15. A method of operating a wind turbine cooling system including a cooling circuit arranged to convey a cooling fluid to and from a heat source, a cooling device arranged to cool the cooling fluid, a pump arranged to circulate the cooling fluid in the cooling circuit, and a cooling fluid tank arranged in fluid connection with the cooling circuit and having a first fluid port adjacent a top of the tank and a second fluid port adjacent a bottom of the tank, wherein the second fluid port is arranged to communicate with the cooling circuit, wherein the pump has an outlet arranged in fluid connection with the cooling circuit and in fluid connection with the tank, and wherein a fluid path between the pump outlet and the tank includes a flow restriction device, the method comprising:
during normal operation of the wind turbine cooling system, operating the pump such that a portion of cooling fluid discharged from the pump is passed through the flow restriction device to the tank; and
operating the pump of the wind turbine cooling system such that gas in the cooling fluid in the cooling circuit is discharged from the pump and directed to the tank.