Abstract: A wind machine with aerodynamic elements to concentrate and accelerate an wind flow entering from outside, said machine having a housing, with an air intake, a first section converging up to an element having a substantially spherical or cylindrical section, a second and a third section, downwind said first converging section, each of said first section, said second section and said third section causing said wind flow to contact said element which has a substantially spherical or cylindrical section substantially up to its median line, a first and a second auxiliary air intake, coincident with said median line of said element having a substantially spherical or cylindrical section, said element having a substantially linear portion, being downwind of said first and second air intakes, and having a fourth and fifth section after said third section.

Abstract: The present invention relates to a wind machine with aerodynamic elements to concentrate and accelerate an Aeolian flow entering from outside, said machine being characterized in that it is provided with a housing (1), with an air intake, a first section (3) converging up to an element (5) having a substantially spherical or cylindrical section, a second and a third section (6A, 6B), downward said first converging section (3), each one licking said element (5) having a substantially spherical or cylindrical section substantially up to its median line, e first and a second auxiliary air intake (8), in correspondence of said median line of said element (5) having a substantially spherical or cylindrical section, said element (5) having a substantially linear portion (9), downward said first and second air intake (8), a fourth and a fifth section (10A, 10B).

Abstract: The invention relates to an eolic silos (1) comprising, from the bottom toward the upper portion, or vice versa, a base (2), a body (1) and a turbine, said silos (1) providing n conducts for inlet of air, with n 2, a first outer conduct (3), with intake of air laterally from said silos body, and a second conduct (4) inner with respect to said first conduct (3), with inlet of air from the bottom.

Abstract: The present invention relates to a crank system for the transformation of reciprocating linear motion into rotary motion, particularly suitable for reciprocating endothermic engines, comprising a wheel or rotating connection rod (2), idly provided on the engine piston (5) pin (3), and a cam (1), provided on the output shaft (6), having a perimetric profile made up of at least two segments or cam arches for the optimisation of the engine cycle strokes, said wheel (2) rotating along the profile of said cam (1) with a coupling characterized by the absence of friction or by a minimum friction.

Abstract: This invention relates to a valve system for reciprocating engines, said system comprising at least two cylindrical guides obtained in the cylinder head; a valve for each guide, said valve being slidable inside the guide itself, without never projecting into the cylinder; ducts or channels obtained in said cylinder head which make one of said guides and hence the cylinder itself to communicate, following to the motion of the corresponding valve, with the induction or the exhaust system; and sealing means between each one of said valves and the corresponding guide; said valves being designed so as to open in their motion the passage of the corresponding channel or duct towards the outside of the cylinder.

Abstract: A lubrication system with oil recovery for a two-stroke engine piston with pump-sump for scavenging, said system consisting of a lubicating oil pressure circulation system having inlet and outlet holes for the oil, said holes passing through the wall of the cylinder, and of shaped scraper rings, each ring being housed within a circular housing or seat obtained on the outside skirt of the piston, said circular housings being provided on the skirt of the piston at a height which does not allow any overlapping of said scraper rings on the transfer ports of the two-stroke engine.