Abstract: A convertiplane has the ability to take off like a helicopter and then fly horizontally like a conventional aircraft. The aircraft includes a variable incidence front wing of variable span located below the fuselage and mounted on a structure in the form of a venturi tube, a rear wing having two propellers for controlling the stability of the vehicle in pitch and roll installed therein, two counter-rotating, pivotally mounted ducted propellers equipped with four flaps orthogonal to each other provided on the sides of the cockpit, engines placed behind the cockpit close to the center of gravity, a static balancing system for controlling the center of gravity of the aircraft consisting of a weight placed in the lower part of the fuselage, self-propelled on the track rack longitudinally to the fuselage, and a digital flight control system.

Abstract: A convertiplane has the ability to take off like a helicopter and then fly horizontally like a conventional aircraft. The aircraft includes a variable incidence front wing of variable span located below the fuselage and mounted on a structure in the form of a venturi tube, a rear wing having two propellers for controlling the stability of the vehicle in pitch and roll installed therein, two counter-rotating, pivotally mounted ducted propellers equipped with four flaps orthogonal to each other provided on the sides of the cockpit, engines placed behind the cockpit close to the center of gravity, a static balancing system for controlling the center of gravity of the aircraft consisting of a weight placed in the lower part of the fuselage, self-propelled on the track rack longitudinally to the fuselage, and a digital flight control system.

Abstract: The present invention relates to the reciprocating internal combustion engine sector and more specifically concerns a mechanical system of linking to the master connecting rod for transmission of the motion of the pistons of an internal combustion engine consisting of a lever, which can be completely rigid or made up of a flexible part and a rigid part, and a connecting rod connected to it that rotates a crankshaft; two coaxial pistons with opposed heads that act practically in the same cylinder and have opposed combustion chambers are connected by two small connecting rods at the top of the said lever, which has its fulcrum—fixed or moving—in the engine bedplate.

Abstract: The present invention relates to the reciprocating internal combustion engine sector and more specifically concerns a mechanical system of linking to the master connecting rod for transmission of the motion of the pistons of an internal combustion engine consisting of a lever, which can be completely rigid or made up of a flexible part and a rigid part, and a connecting rod connected to it that rotates a crankshaft; two coaxial pistons with opposed heads that act practically in the same cylinder and have opposed combustion chambers are connected by two small connecting rods at the top of the said lever, which has its fulcrum—fixed or moving—in the engine bedplate.

Abstract: The mechanic system in object uses the new structure of the crank mechanism assembly, for internal combustion engines at alternating cycle, without modifying the cycle. The system, places instead of traditional connecting rod a new system. The system allows using two coaxial pistons with the opposite head, acting in the same cylinder and has opposed combustion chambers. The system then replace the classical three elements for piston (piston, connecting rod and crankshaft), with a system that can be considered to be composed of four elements for two Pistons with an evident general kinematic savings. The salient features of the system are: 1. Reduced lateral piston friction on the cylinder; 2. Reduction of General weights of the crankshaft assembly; 3. Lack of sucking effect resulting in better efficiency; 4. The new system of transmission is composed of two parts. that allows controlling the compression ratio and NOK.