PARAFFIN ACTUATOR

摘要

The invention relates to a solar paraffin actuator which operates based on the dilatation effect generated upon the paraffin passing from the solid phase to the liquid phase. According to the invention, the actuator mainly comprises a Bourdon tube (1) filled with a medium (2) consisting of paraffin and communicating through a connection conduit (3) with a spherical metal container (4) which is also filled with paraffin, said container (4) being placed, by means of a thermally-insulating leg (5) in the focus point of a parabolic concentrator (6) and being heated mainly by the radiation reflected and concentrated onto the lower surface, while the elements (1 and 2) are under the influence of the direct solar radiation, where, under the effect of the heat, the paraffin placed in the elements (1, 2 and 4) dilates and causes the deformation of the Bourdon tube (1) which, in its turn, changes the position of an actuated element (8).