Abstract: A system for reversibly converting stadiums into multifunctional infrastructure by removing the pitch and storing it in a pit (6), the pitch having a set of trays (1) having a total length equal to the pitch in a longitudinal direction of the pit, which are moveable, self-supporting and have layers of soil, irrigation and turf; a set of transport trolleys (2) for lifting and moving each tray (1) from its position on the pitch to the pit (6); a set of retractable trellises (5) that can be unfolded on the pit (6), for the entry of each tray (1) from above the pit; an elevator system (8) inside the pit (6) to move each tray to its final position, in storage, or on the pitch; and a storage system (7) for storing each tray in a fixed and stable position.

Abstract: Azimuthal rotation mechanism for solar trackers having a vertical pedestal (1) on which a rotating support (2) holding the solar panels (7) is mounted, which is actuated by at least three hydraulic cylinders (4, 5 and 6) located in the same horizontal plane and articulated through the casing to the rotating support (2) by a first movable vertical shaft (18), while the piston rods of the three cylinders pass through the wall of the rotating support and are articulated at the same height to the pedestal by a second fixed vertical rotation shaft (21).

Abstract: Azimuthal rotation mechanism for solar trackers comprising a vertical pedestal (1) on which a rotating support (2) holding the solar panels (7) is mounted, which is actuated by means of at least three hydraulic cylinders (4, 5 and 6) located in the same horizontal plane and articulated through the casing to the rotating support (2) by means of a first movable vertical shaft (18), while the piston rods of the three cylinders pass through the wall of the rotating support and are articulated at the same height to the pedestal by means of a second fixed vertical rotation shaft (21).

Abstract: A solar receiver panel comprising a header comprising header body (18, 18?) having a header wall surrounding an inner chamber (11, 11?), at least one access opening (21, 21?) communicating with the inner chamber (11, 11?) with a substantially spherical shape for connecting a fluid pipe, and a plurality of junction nozzles (16, 16?) provided in the header wall which are connectable to respective solar absorption pipes (14) wherein at least one of the junction nozzles (16, 16?) are located in a spherical segment of the inner chamber (11, 11?) that is transversally opposed to said access opening (21, 21?), been the access opening (21, 21?), inner chamber (11, 111 and nozzles (16, 16?) arranged to allow a thermal fluid to flow there through.

Abstract: A solar receiver panel comprising a header comprising header body (18, 18?) having a header wall surrounding an inner chamber (11, 11?), at least one access opening (21, 21?) communicating with the inner chamber (11, 11?) with a substantially spherical shape for connecting a fluid pipe, and a plurality of junction nozzles (16, 16?) provided in the header wall which are connectable to respective solar absorption pipes (14) wherein at least one of the junction nozzles (16, 16?) are located in a spherical segment of the inner chamber (11, 11?) that is transversally opposed to said access opening (21, 21?), been the access opening (21, 21?), inner chamber (11, 111 and nozzles (16, 16?) arranged to allow a thermal fluid to flow there through,

Abstract: Heliostat facet configured from a flat structure comprising a central section (1) and a peripheral section (2) comprising first (3) and second sides (4), being both sections linked together by a plurality of arms (5, 6), which starting from the central section (1) radially run towards the peripheral section (2) taking as reference the geometrical center (7) of the facet. In at least three of the arms (5, 6), there are support points (15) of the facet in the corresponding heliostat support (16). The arms (5,6) comprise first arms (5) which are arranged from the central section (1) to the peripheral section (2) running in a divergent manner and at least two couples of second arms (6) which starting from the central section (1) run to the peripheral section (2), the arms (6) of each couple radially running in a convergent manner.

Abstract: The invention relates to a thin wall header with a variable cross-section for solar absorption panels, manufactured in nickel-based superalloy and formed by a main thin wall body (18) and by a plurality of nozzles (16,21). The header (10) is connected to a series of junction nozzles (16) wherein respective solar absorption tubes (14) are connected, and at least one inlet or outlet nozzle (21) wherein at least a fed tube is connected. The body (18) can have a spindle shape or can be formed by two frustoconical sections joined by the larger base, and can further have a central cylindrical section at the height of the inlet or outlet nozzles (21). It is applicable in the collection of fluids at high temperature, especially in solar panels.

Abstract: Heliostat facet configured from a flat structure comprising a central section (1) and a peripheral section (2) comprising first (3) and second sides (4), being both sections linked together by a plurality of arms (5, 6), which starting from the central section (1) radially run towards the peripheral section (2) taking as reference the geometrical centre (7) of the facet. In at least three of the arms (5, 6), there are support points (15) of the facet in the corresponding heliostat support (16). The arms (5,6) comprise first arms (5) which are arranged from the central section (1) to the peripheral section (2) running in a divergent manner and at least two couples of second arms (6) which starting from the central section (1) run to the peripheral section (2), the arms (6) of each couple radially running in a convergent manner.

Abstract: The invention relates to a thin wall header with a variable cross-section for solar absorption panels, manufactured in nickel-based superalloy and formed by a main thin wall body (18) and by a plurality of nozzles (16,21). The header (10) is connected to a series of junction nozzles (16) wherein respective solar absorption tubes (14) are connected, and at least one inlet or outlet nozzle (21) wherein at least a fed tube is connected. The body (18) can have a spindle shape or can be formed by two frustoconical sections joined by the larger base, and can further have a central cylindrical section at the height of the inlet or outlet nozzles (21). It is applicable in the collection of fluids at high temperature, especially in solar panels.

Abstract: Noise reduction conduit for non rotary components of aircraft engines, subjected to a characteristic range of temperatures of a gas turbine engine, constituted by an annular structure composed of an aerodynamic wet wall (10a, 10b), perforated and resistant mechanically and thermally; of a dry wall (12a, 12b), not resistant and of light weight; and of some intermediate elements to which both walls are mechanically attached and that define a jump or difference of temperature between the wet and dry walls; between which wet (10a, 10b) and dry walls (12a, 12b) there are partitions that define cavities (16a, 16b) isolated with regard to each other.

Abstract: Noise reduction conduit for non rotary components of aircraft engines, subjected to a characteristic range of temperatures of a gas turbine engine, constituted by an annular structure composed of an aerodynamic wet wall (10a, 10b), perforated and resistant mechanically and thermally; of a dry wall (12a, 12b), not resistant and of light weight; and of some intermediate elements to which both walls are mechanically attached and that define a jump or difference of temperature between the wet and dry walls; between which wet (10a, 10b) and dry walls (12a, 12b) there are partitions that define cavities (16a, 16b) isolated with regard to each other.