Abstract: System for the reversible transformation of a reciprocating motion in a rotary motion, which may include one or more actuating devices adapted to cooperate with a rotor which has a spiral shaped section, and has at least one interaction surface for interacting with said one or more actuating devices. Each actuating device of said plurality of actuating devices is an internal combustion cylinder and piston device. Each actuating device is associated with a rod which incorporates a slider with a follower which engages with said at least one interaction surface of said rotor.

Abstract: The present invention provides a system for the reversible transformation of a reciprocating motion in a rotary motion, which comprises one or more actuating devices (11) adapted to cooperate on at least one interaction surface of a spiral profiled rotor (3), the system it is characterized in that each actuating device of said plurality of actuating devices (11) comprises hydraulic or internal combustion cylinders; the arrangement being such that each actuating device (11) urges a tubular slidable rod coupled to a respective cylinder, said tubular rod being associated with a slider (5), the slider (5) being adapted to transmit the thrust of said tubular rod (6) on said at least one interaction surface of the spiral profiled rotor (3) creating a torque on said rotor (3).

Abstract: The present invention provides a system for the reversible transformation of a reciprocating motion in a rotary motion, which comprises one or more actuating devices (11) adapted to cooperate on at least one interaction surface of a spiral profiled rotor (3), the system it is characterized in that each actuating device of said plurality of actuating devices (11) comprises hydraulic or internal combustion cylinders; the arrangement being such that each actuating device (11) urges a tubular slidable rod coupled to a respective cylinder, said tubular rod being associated with a slider (5), the slider (5) being adapted to transmit the thrust of said tubular rod (6) on said at least one interaction surface of the spiral profiled rotor (3) creating a torque on said rotor (3).

Abstract: The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, in an internal combustion engine. The system comprising a rotor element and a stator element, one of said the rotor element and stator element having a closed spiral profile. The spiral profile having a continuous curvilinear portion for at least 270°, and a ramp portion joining the ends of the continuous curvilinear portion.

Abstract: The invention concerns a two-stroke internal combustion engine supplied with gasoline, diesel, fuel, or other conventional fuel comprising a piston (2)-cylinder (1) assembly, said cylinder (1) providing exhaust ports (11), said piston (2)-cylinder (1) assembly providing a head (5) slidable within said cylinder (1) between the Top Dead Centre of the piston (2) stroke and a closure position of the exhaust ports (11), said slidable head (5) providing a transfer valve (9) for fresh air or fresh air-fuel mixture within the compression and burst chamber of the piston (2)-cylinder (1) assembly, sliding of said slidable head (5) inside the cylinder (1) being controlled by actuation means co-ordinated with the piston (2) actuation system, upward said slidable head (5) a fresh air or fresh air-fuel mixture system (13, 14) being provided for suction during the stroke of said slidable head (5) between the Top Dead Centre and the exhaust port (11) closure point.

Abstract: The invention concerns a two-stroke internal combustion engine supplied with gasoline, diesel, fuel, or other conventional fuel comprising a piston (2)-cylinder (1) assembly, said cylinder (1) providing exhaust ports (11), said piston (2)-cylinder (1) assembly providing a head (5) slidable within said cylinder (1) between the Top Dead Centre of the piston (2) stroke and a closure position of the exhaust ports (11), said slidable head (5) providing a transfer valve (9) for fresh air or fresh air-fuel mixture within the compression and burst chamber of the piston (2)-cylinder (1) assembly, sliding of said slidable head (5) inside the cylinder (1) being controlled by actuation means co-ordinated with the piston (2) actuation system, upward said slidable head (5) a fresh air or fresh air-fuel mixture system (13, 14) being provided for suction during the stroke of said slidable head (5) between the Top Dead Centre and the exhaust port (11) closure point.

Abstract: The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, particularly for internal combustion engine, said system comprising a rotor element and a stator element, one of said rotor element and stator element having a closed spiral profile, said spiral profile having a continuous curvilinear portion for at least 270°, and a ramp portion joining the ends of said continuous curvilinear portion.