WATER-TURBINE, TURBINE PROVIDED WITH BLADES TAKING SHEET-FORM ONLY WHEN STREAM HITS ORTHOGONALLY, AND STRUCTURALLY CHANGING FROM CORRUGATE-FORM TO GRILLWORK AT OTHER ANGLES

摘要

PPROBLEM TO BE SOLVED: To reduce resistance of stream in the conventional water-turbine having sheet-shaped blades, in which too high stream-resistance is caused against the torque, that is, water-resistance hitting the blades in plunging into the water, water-resistance when submerging from the surface, water-resistance when coming up from the water into the air, and air-resistance receibed in the air. PSOLUTION: A plurality of longitudinal blades 1 with screws are placed on different levels on alternate lines of attachment rod 13. The blades are rotated by straight-line teeth made on roller-attachment rods 3, and by the rotation, the blades are changed from a lattice-form to a wave-form, and then to sheet-form, further to rectangular sheet-form in which the highest torque is received. PCOPYRIGHT: (C)2005,JPO&NCIPI