Patent ID: 11885292
Assignee: HANGZHOU JIANGHE HYDRO-ELECTRICAL SCIENCE & TECHNOLOGY CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 2:
3. The tidal current energy generating device of claim 2, wherein the first concavo-convex portion comprises a first edge, a second edge, a third edge and a fourth edge; the first edge, the second edge, the third edge and the fourth edge are connected in sequence along the second direction; a shortest distance between each part on the first edge and the second concavo-convex portion is the same; a shortest distance between the second edge and the second concavo-convex portion decreases from an end of the second edge connected with the first edge to an end of the second edge connected with the third edge; a shortest distance between the third edge and the second concavo-convex portion from an end of the third edge connected with the second edge to an end of the third edge connected with the fourth edge increases; among the first edge, the second edge, the third edge and the fourth edge, a shortest distance between the fourth edge and the second concavo-convex portion is the largest; the adjustment wheel is configured to abut against the first edge; the adjustment plate is configured to be driven under the action of the tidal current flowing along the first direction to move along the first direction relative to the adjustment wheel, so that the adjustment wheel is in contact with the first edge, the second edge, the third edge and the fourth edge in sequence, thereby making the adjustment wheel swing to drive the impeller blade to rotate around the axis of the impeller blade relative to the impeller hub to adjust the angle of the impeller blade.