| 摘要 |
A motorboat water inlet foil grating comprises a frame and a pair of wing pieces. The frame is fastened to the water inlet located at the bottom of a motorboat hull. The wing pieces are mounted obliquely on the frame such that the lower segments of the wing pieces face forward and that the upper segments of the wing pieces face rearward. Each of the wing pieces has a concave upper surface and a convex lower surface. The concave upper surface faces upwards while the convex lower surface faces downwards. The frame is provided with a reinforcing portion for bracing the wing pieces which are capable of guiding water to flow evenly in the water channel of the motorboat so as to enable the propeller of the motorboat to compress the water current efficiently to enhance the forward power of the motorboat.
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