초록

A wind turbine rotor blade (10) comprising one or more means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature. The means comprises at least one laminate having at least two layers of materials with differing thermal expansion coefficients.

대표청구항 ▼

1. A wind turbine rotor blade (10) comprising one or more profile adjusting means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature characterized in that the profile adjusting means (4) comprises at least one laminate having at least two layers o

1. A wind turbine rotor blade (10) comprising one or more profile adjusting means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature characterized in that the profile adjusting means (4) comprises at least one laminate having at least two layers of materials with differing thermal expansion coefficients, and the profile adjusting means (4) is formed of a laminate comprising a first and a second laminate layer of a composite material, and the profile adjusting means is a flap (4) mounted adjacent the trailing edge of the rotor blade (10), and the flap (4) comprises several laminates facing opposite each other and joined along the leading and trailing edges of the flap (4).2. A wind turbine rotor blade (10) according to claim 1, characterized in that the flap (4) is mounted on the pressure side (2) of the blade (10).3. A wind turbine rotor blade (10) comprising one or more profile adjusting means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature characterized in that the profile adjusting means (4) comprises at least one laminate having at least two layers of materials with differing thermal expansion coefficients, and the profile adjusting means (4) is formed of a laminate comprising a first and a second laminate layer of a composite material, and the first layer is made of fibreglass-reinforced epoxy, in which the fibers extend in the transverse direction of the profile adjusting means, and the second layer is made of aramid fibre-reinforced epoxy, in which the fibers extend in the longitudinal direction of the profile adjusting means, and the profile adjusting means is a flap (4) mounted adjacent the trailing edge of the rotor blade (10), and the flap (4) comprises several laminates facing opposite each other and joined along the leading and trailing edges of the flap (4).4. A wind turbine rotor blade (10) according to claim 3, characterized in that the flap (4) is mounted on the pressure side (2) of the blade (10).5. A wind turbine rotor blade (10) comprising one or more profile adjusting means (4) secured to the blade (10) for changing the profile thereof depending on the atmospheric temperature characterized in that the profile adjusting means (4) comprises at least one laminate having at least two layers of materials with differing thermal expansion coefficients, and the laminate is made of a bimetal, and the profile adjusting means is a flap (4) mounted adjacent the trailing edge of the rotor blade (10), and the flap (4) comprises several laminates facing opposite each other and joined along the leading and trailing edges of the flap (4).6. A wind turbine rotor blade (10) according to claim 5, characterized in that the flap (4) is mounted on the pressure side (2) of the blade (10).