CPC F03D 7/0232 (2013.01) [F03D 1/0633 (2013.01); F05B 2240/3052 (2020.08)] | 18 Claims |
1. An arrangement for controlling inflow and outflow of a fluid into and out of an expandable container arranged to change a state of an adaptable flow regulating device installed at a wind turbine rotor blade, the arrangement comprising:
an inflow valve arranged to control fluid inflow into the container;
an outflow valve arranged to control fluid outflow out of the container;
wherein the inflow valve and the outflow valve are configured to prohibit fluid flow into and out of the container in case of a safety stop event such that the adaptable flow regulating device is maintained at a respective state.
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