Sectional mold for wind power rotor blade made of fiber-reinforced resin, produces blades of differing size and improved aerodynamic efficiency, avoiding cost of stocking one mold per blade

摘要

The negative mold is in sections, one (1) for the root, another (2) for the main section (or mainboard) and another (3) for the tip. Alternatively there is one for the root, and another for both main section and tip. They fit together at the joins. Preferred features: Root molds may have differing lengths and/or differing dimensions of connection to a corresponding rotor hub. The root mold joins flush with the aerodynamically-efficient profile extending over the length of the rotor blade. The root mold may be divided into a mold section to suit differing hub fitting sizes, and a mold section for length compensation.