US 12,421,933 B1
Low speed multiblade wind turbine
Sikandar Khan, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Nov. 7, 2024, as Appl. No. 18/939,611.
Application 18/939,611 is a continuation of application No. 18/609,714, filed on Mar. 19, 2024, granted, now 12,173,684.
This patent is subject to a terminal disclaimer.
Int. Cl. F03D 1/06 (2006.01)
CPC F03D 1/0641 (2013.01) [F05B 2240/2211 (2013.01); F05B 2240/301 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wind turbine for a region with a yearly average wind speed of less than 5 m/s, comprising:
a rotor comprising a rotor hub wherein the rotor has a rotor diameter and is configured for rotation with a starting torque and a torque-magnitude-profile-over-time; and
a plurality of blades wherein each blade of the plurality of blades:
is connected to the rotor hub;
extends radially about the rotor hub;
has a blade root and a blade tip; and
has a plurality of sections distributed longitudinally between the blade root and the blade tip, wherein each section of the plurality of sections has a chord length and an angle of twist set forth in Table 5;
wherein the plurality of blades includes three or more blades;
wherein the chord length is a first non-dimensional value from 0 to 1 and the angle of twist is specified in radian; and
wherein the first non-dimensional value is convertible to a dimensional value in meters by multiplying the first non-dimensional value of the chord length.