Abstract: With shaped connecting rod, piston and cylinder, an advantageous asymmetric timing of the two-stroke engine is achieved, wherein the combustion chamber communicates with the crankcase through a transfer port controlled by the piston and through a respective piston port controlled by the connecting rod, with the transfer port and its respective piston port arranged “in series”, and wherein an intake port communicates with the crankcase through a piston port controlled by the connecting rod, with the intake port and its respective piston port arranged “in series”.

Abstract: A valve integral with, or secured to, the connecting rod small end of a reciprocating piston positive displacement machine opens and closes a port controlling the communication of two spaces, for gas pumps, scavenging pumps, compressors, superchargers, pumps etc.

Abstract: With shaped connecting rod, piston and cylinder, an advantageous asymmetric timing of the two-stroke engine is achieved, wherein the combustion chamber communicates with the crankcase through a transfer port controlled by the piston and through a respective piston port controlled by the connecting rod, with the transfer port and its respective piston port arranged “in series”, and wherein an intake port communicates with the crankcase through a piston port controlled by the connecting rod, with the intake port and its respective piston port arranged “in series”.

Abstract: A single-crankshaft single-cylinder fully-balanced opposed piston engine module that provides extra time for the injection and the combustion of the fuel.

Abstract: A valve integral with, or secured to, the connecting rod small end of a reciprocating piston positive displacement machine opens and closes a port controlling the communication of two spaces, for gas pumps, scavenging pumps, compressors, superchargers, pumps etc.

Abstract: Uniflow two-stroke engines without ports on the cylinder and with four-stroke lubrication.

Abstract: A single-crankshaft single-cylinder fully-balanced opposed piston engine module that provides extra time for the injection and the combustion of the fuel.

Abstract: Uniflow two-stroke engines without ports on the cylinder and with four-stroke lubrication

Abstract: A single-crankshaft single-cylinder fully-balanced opposed piston engine module that provides extra time for the injection and the combustion of the fuel.

Abstract: The piston is connected to the crankshaft via a connecting rod, while the crankshaft is disposed between the wrist pin and the combustion chamber. This way the combustion is shifted to the slow dead center, enabling the diesel to perform at higher revs, improving the spark engine efficiency and making HCCI combustion easier. Though the crankshaft is of one piece, more connecting rods can be used for a piston. As opposed piston, the PRE engine further combines top specific power, top thermal efficiency, built in scavenging pumps, and compactness.

Abstract: The piston is connected to the crankshaft via a connecting rod, while the crankshaft is disposed between the wrist pin and the combustion chamber. This way the combustion is shifted to the slow dead center, enabling the diesel to perform at higher revs, improving the spark engine efficiency and making HCCI combustion easier. Though the crankshaft is of one piece, more connecting rods can be used for a piston. As opposed piston, the PRE engine further combines top specific power, top thermal efficiency, built in scavenging pumps, and compactness.

Abstract: A compact and lightweight portable flyer. Compared to the prior art, it is like an oversimplified synchropter without any casing or frame, without special control equipment, without servomechanisms. The body of the pilot is the sensors and the servomechanisms: just like a rider controls his bike with his body movements.