| 摘要 |
<p>The fan blade (1) has a leading edge (2) which is curved in an S shape in the plane of the fan blade, and an outside edge (4) which is shorter than the leading edge. The center point (M) of the outside edge is located near to the radial line (x) of the fan blade. The leading edge may be at least partially fringed. An independent claim is included for a fan.</p> |
