초록 ▼

The invention concerns a rotor blade of a wind power installation and a wind power installation. One advantage of the present invention is to provide a rotor blade having a rotor blade profile, and a wind power installation, which has better efficiency than hitherto. A rotor blade of a wind power in

The invention concerns a rotor blade of a wind power installation and a wind power installation. One advantage of the present invention is to provide a rotor blade having a rotor blade profile, and a wind power installation, which has better efficiency than hitherto. A rotor blade of a wind power installation, wherein the rotor blade has a thickness reserve approximately in the range of between 15% and 40%, preferably in the range of between about 23% and 28%, and wherein the greatest profile thickness is between about 20% and 45%, preferably between about 32% and 36%.

대표청구항 ▼

The invention claimed is: 1. A wind power installation rotor blade, comprising: a rotor blade trailing edge and a rotor blade leading edge, a rotor blade chord that extends from the centre of the rotor blade trailing edge to a foremost point of the rotor blade leading edge, and a thickness reserve

The invention claimed is: 1. A wind power installation rotor blade, comprising: a rotor blade trailing edge and a rotor blade leading edge, a rotor blade chord that extends from the centre of the rotor blade trailing edge to a foremost point of the rotor blade leading edge, and a thickness reserve of the rotor blade, positioned in the range of 15% to 40% of the length of the rotor blade chord, wherein the rotor blade has a greatest profile thickness in the range of 20% to 45% of the length of the rotor blade chord, and wherein the rotor blade leading edge has a radius of about 0.146 of a profile depth of the rotor blade in a lower third of the rotor blade adjoining a rotor blade connection. 2. The rotor blade according to claim 1 wherein: the rotor blade has a thickness reserve in the range of 23% to 28% at the length of the rotor blade chord, and the rotor blade has a greatest profile thickness in the range between 42% to 45% of the length of the rotor blade chord. 3. The rotor blade according to claim 1 wherein: a cross-section of the rotor blade is defined by a mean camber line, whose the greatest camber is in a range between 50�� to 70��. 4. The rotor blade according to claim 3 wherein: the greatest camber is in the range of 60�� to 65��. 5. The rotor blade according to claim 3 wherein: the greatest camber of the rotor blade is a value between 3% to 10% of the length of the rotor blade chord. 6. The rotor blade according to claim 5 wherein: the greatest camber of the rotor blade is a value between 4% to 7% of the length of the rotor blade chord. 7. The rotor blade according to claim 2 wherein: the cross-section is arranged in the lower third of the rotor blade, which adjoins a rotor blade connection. 8. A rotor blade according to claim 1, further comprising: an increased-pressure side and a reduced-pressure side, wherein the increased-pressure side has a portion with a concave curvature and wherein the reduced-pressure side has a portion with a substantially straight part. 9. The rotor blade according to claim 1 wherein: the outline of the cross-section of the rotor blade crosses the rotor blade chord twice. 10. The rotor blade according to claim 8 wherein: the ratio of the length of the reduced-pressure side to the length of the increased-pressure side is less than a value of 1.2. 11. The rotor blade according to claim 10 wherein: the ratio of the length of the reduced-pressure side to the length of the increased-pressure side corresponds to a range of values between 1 to 1.03. 12. A wind power installation comprising at least one rotor blade according to claim 1.