and the reduction is about 5% for the fully nonlinear dynamo model D3. In the B-type models the reduction of the latitudinal shear is about 5 % of the $\Delta\Omega_{\odot}$ in the case B3. In the fully nonlinear B-type dynamo model the change of the latitudinal shear is relatively small. It is less than 1 % of the $\Delta\Omega_{\odot}$. The magnitude of the torsional oscillations behave similarly. The model D2 with the period of rotation 14.5 days shows the torsional oscillations of magnitude about 70 m/s at the surface.

Dynamo amplitude and period vs period of rotation
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We find that for the fast rotation case the nonlinear dynamos of D-type can show the multiply periods. However, in the given range of the rotational periods and for the given choice of the dynamo parameters, the regime of the multiply dynamo periods is not well developed. Figure 6 illustrates variations of the total unsigned magnetic flux of the toroidal field generated by the dynamo in the model D3 for the rotational periods 25.3 and 14.5 days and for the models D1 and D2 for the rotational period 14.5 days. For the period of rotation 14.5 days the D1 model for the 