| 摘要 |
The invention is related to the wind energetics branch, in particular to the wind motors with rotation around the vertical axis. Its aim is increasing of the power of the wind motor by increasing the speed of the local wind streaming and simplifying the devices that prepare wind flow touching the effective working surfaces of the blades. Wind motor shown in Fig.1 and Fig.2 is based on the joint rotating platform (1) on which two rotors (2, 3), which are able to rotate under influence of the wind into the directions opposite to each other with angular speeds W1 and W2, are installed, and the support (6) with aerodynamic profile is strictly fixed onto the platform (1) between the both rotating wing ends (4, 5). The support (6) is created in the place where the current wind flow, increased to the maximum with its aerodynamic profile (Fig.3), goes on the blades (4, 5) receiving this flow. Besides, the support (6) fulfils the function of platform rotation axis according to the principle of feathering in the way that the forepart of the aerodynamic profile with the support (6) always would be oriented against the wind. On the Fig. 3 there are indicated: length b and thickness C of chord of aerodynamic profile of the support (6); value l shows the position on the chord; value la shows the place on the profile close to which the streaming of the wind is increased to the maximum; value r shows the maximum bend radius inside of the profile. Dimensions of said values related to the legth of chord satisfy the following relationships: l/b?0.25; c/b?0.2; La/b?0.18; r/b?0.05. Rotation centre and rotation axes of the rotors (2, 3) are created on the perpendiculars Ca and Cb in the profile contact points la. |
