Abstract: The device is intended to adjust the pitch of blades or propellers which are articulately coupled by means of end supports inside radial bearings which are solidly joined to a rotating head-piece of a wind generator. This adjustment may be performed either actively or passively. It is characterized in that the rotating head-piece incorporates a linear actuator (1), such as a cylinder, the shaft of which is connected to a crosspiece (14), the latter being associated with intermediate mechanisms connected to the end supports (7) of the blades (6) so as to vary the pitch thereof when the crosspiece (14) moves, being driven by the shaft of the cylinder.

Abstract: The device is intended to adjust the pitch of blades or propellers which are articulately coupled by means of end supports inside radial bearings which are solidly joined to a rotating head-piece of a wind generator. This adjustment may be performed either actively or passively. It is characterised in that the rotating head-piece incorporates a linear actuator (1), such as a cylinder, the shaft of which is connected to a crosspiece (14), the latter being associated with intermediate mechanisms connected to the end supports (7) of the blades (6) so as to vary the pitch thereof when the crosspiece (14) moves, being driven by the shaft of the cylinder.

Abstract: The invention relates to a solar tracker including a structure formed by means of a plurality of rigid frames formed by pairs of pillars (1 and 2) connected with ties (4) and collaterally with ties forming Saint Andrew's crosses (5), such that those rigid frames which are anchored to the ground through struts (3) driven therein form the mounting support for a corresponding solar panel-supporting grate (6), the latter being mounted with the possibility of pivoting towards one side or the other and being oriented according to the direction of the sun's rays. Those rigid frames with the grates form alignments in which groups are established, wherein the panels of each group are connected with a tubular element forming a connecting rod (13) which is driven by a power unit to transmit the movement, either in a linear manner and converted into a pivoting movement to the grates (6), or in a pivoting manner directly to said grates (6), and achieve the suitable orientation thereof.