Abstract: The proposed internal combustion engine may be characterized by two mobile opposite cylinders rigidly attached to each other. Said cylinders move simultaneously in the same direction. The motions of said cylinders are transferred via a connecting rod and hinges to the rotational movements of the crankshaft. Inside the opposite cylinders are two mobile opposite pistons rigidly attached to each other and rigidly secured to the housing of the engine. There are two working cavities of variable volume between the corresponding opposite pistons and the opposite cylinders. The intake and exhaust valves with intake and exhaust manifolds, injectors with fuel pipes, spark plugs with high voltage wires, are placed on the said pistons. The compressor is rigidly connected to the engine housing and supplies air under high pressure to the working cavities of the engine through the air intake manifold.

Abstract: The offered internal combustion engine may be characterized by two mobile opposite cylinders fixed rigidly to each other. Said cylinders move simultaneously in the same direction. The motions of said cylinders are being transferred via connecting rod and hinges to the rotational movements of the crankshaft. Inside the opposite cylinders there are two immovable opposite pistons rigidly fixed to each other and rigidly secured to the housing of the engine. There are two working cavities of shifting volume between the corresponding opposite pistons and opposite cylinders. The inlet and exhaust valves with inlet and exhaust manifolds, injectors with fuel pipes, spark-plugs with high voltage wires are placed on the said pistons. The compressor rigidly connected with the engine housing and through the air inlet manifold supplies air under high pressure to the working cavities of the engine.

Abstract: The wind-driven power station comprises a closed-loop rail track consisting of sections of gradual ascent and descent. The descent section directed upwind is positioned in an artificial tunnel. Basic elongated sections of the rail track are situated across the predominant wind direction in the given area. A carriage with a sail assembly and a generator, whose rotor is connected to the wheel axis, moves along the rail track. A wind directing device is positioned along the basic elongated sections of the track and designed to direct wind upon said sail assembly. Wind flows which pass through channels of the wind directing device change their direction and from the rear push the sail assembly of the carriages and set them into motion. The carriage wheel rotation leads to generator rotor rotation and generation of current. At all sections of the rail track the carriages are affected by forces pushing them in the same direction.

Abstract: The fluid machine can be used as a pump, compressor, motor and internal combustion engine and is characterized by two mobile opposite cylinders fixed rigidly to each other. Said cylinders move simultaneously in the same direction. Inside the opposite cylinders there are two fixed opposite pistons rigidly secured to the housing and each said piston is made with suction and discharge valves designed to connect the working cavity between the corresponding piston and cylinder with low and high pressure sources. Within one cycle of the reciprocating movements of opposite cylinders (direct and back) the liquid is twice sucked into cylinder chambers from the low pressure source and is supplied twice under pressure to the high pressure source.

Abstract: The wind-driven power station comprises a closed-loop rail track consisting of sections of gradual ascent and descent. The descent section directed upwind is positioned in an artificial tunnel. Basic elongated sections of the rail track are situated across the predominant wind direction in the given area. A carriage with a sail assembly and a generator, whose rotor is connected to the wheel axis, moves along the rail track. A wind directing device is positioned along the basic elongated sections of the track and designed to direct wind upon said sail assembly. Wind flows which pass through channels of the wind directing device change their direction and from the rear push the sail assembly of the carriages and set them into motion. The carriage wheel rotation leads to generator rotor rotation and generation of current.

Abstract: The fluid machine can be used as a pump, compressor, motor and internal combustion engine and is characterized by two mobile opposite cylinders fixed rigidly to each other. Said cylinders move simultaneously in the same direction. Inside the opposite cylinders there are two fixed opposite pistons rigidly secured to the housing and each said piston is made with suction and discharge valves designed to connect the working cavity between the corresponding piston and cylinder with low and high pressure sources.