The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The disclosure further provides embodiments having stationary islands and casings that rotate about the island.

A rotary motor (10;1 10) is described, comprising a stationary cylinder housing (12;1 12) having an internal mainly circular rotor (20;120) mounted on a drive shaft (14;1 14) and where the rotor (20;120) is equipped with a piston (16;1 16) and that provided about the rotor (20;120) is a circular working chamber (18;1 18) with an inlet (42;142) and an outlet (32;132) for supply and removal, respectively, of the relevant drive medium, where provided in front of the inlet (42; 142) of the working chamber (18;1 18) there is a passage valve (30; 130) arranged to allow passage of the piston (16;1 16) and to close the working chamber (18;1 18) after the piston (16;1 16) has passed. The inlet (42;142) in the cylinder housing (12;1 12) is connected to an external combustion chamber (40; 140) for introducing the drive medium to the working chamber (18;1 18), where the combustion chamber (40; 140) comprises means for increasing the compression pressure in the combustion chamber, as said means comprises a compression rod (50;150), or a piston, arranged to be pushed into the combustion chamber (40;140) to increase the compression pressure.

A rotary motor (10;1 10) is described, comprising a stationary cylinder housing (12;1 12) having an internal mainly circular rotor (20;120) mounted on a drive shaft (14;1 14) and where the rotor (20;120) is equipped with a piston (16;1 16) and that provided about the rotor (20;120) is a circular working chamber (18;1 18) with an inlet (42;142) and an outlet (32;132) for supply and removal, respectively, of the relevant drive medium, where provided in front of the inlet (42; 142) of the working chamber (18;1 18) there is a passage valve (30; 130) arranged to allow passage of the piston (16;1 16) and to close the working chamber (18;1 18) after the piston (16;1 16) has passed. The inlet (42;142) in the cylinder housing (12;1 12) is connected to an external combustion chamber (40; 140) for introducing the drive medium to the working chamber (18;1 18), where the combustion chamber (40; 140) comprises means for increasing the compression pressure in the combustion chamber, as said means comprises a compression rod (50;150), or a piston, arranged to be pushed into the combustion chamber (40;140) to increase the compression pressure.

A device for internal cooling and pressurization of rotary engine, comprising: a mechanical charger, a charger outlet tube, a core cooling intake tube, an engine air intake tube, a first valve, a second valve, and a third valve. The mechanical charger is mounted in a ventilated place. The charger outlet tube is used to dispense air, and the charger outlet tube has two sides, with one side coupled to the mechanical charger. The core cooling intake tube is connected to another side of the charger outlet tube, and is used to dispense air. The engine air intake tube is connected to another side of the charger outlet tube. The device for cooling and pressurization of rotary engine is capable of achieving improved cooling and performance of rotary engine, through switching a plurality of valves, in automatic control manner and/or in remote control manner.

A device for internal cooling and pressurization of rotary engine, comprising: a mechanical charger, a charger outlet tube, a core cooling intake tube, an engine air intake tube, a first valve, a second valve, and a third valve. The mechanical charger is mounted in a ventilated place. The charger outlet tube is used to dispense air, and the charger outlet tube has two sides, with one side coupled to the mechanical charger. The core cooling intake tube is connected to another side of the charger outlet tube, and is used to dispense air. The engine air intake tube is connected to another side of the charger outlet tube. The device for cooling and pressurization of rotary engine is capable of achieving improved cooling and performance of rotary engine, through switching a plurality of valves, in automatic control manner and/or in remote control manner.

The basic Wotary Engine is a mechanical device consisting of two rotating components. A valve rotating within a valve cavity and a piston continuously rotating through a toroidal cylinder. A wide variety of fuels can be used within the toroidal cylinder to convert solid, liquid, or gaseous fuel, as well as energy sources such water pressure, steam, or air pressure, into rotational mechanical output via a shaft and flywheel which are attached to the pistons.

The Wotary Engine can also be constructed with wire coils closely and sequentially surrounding the toroidal cylinder. As a strongly magnetic piston rotates past the coils, electricity can be conducted off the coils.

Properly timed input of electrical energy to the coils can also be used to impart rotary force to the magnetic piston in the Wotary Engine, thus providing yet another energy source for conversion to rotating mechanical output.

A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, and controlling air intake flows communicating between an air source and the primary and secondary inlet ports. During engine start-up, a primary valve is closed to prevent the intake air flow between the primary inlet port and the air source and a secondary valve is opened to allow the intake air flow between the secondary inlet port and the air source. A rotary engine defining different compression ratios through actuation of a valve is also discussed.

A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, and controlling air intake flows communicating between an air source and the primary and secondary inlet ports. During engine start-up, a primary valve is closed to prevent the intake air flow between the primary inlet port and the air source and a secondary valve is opened to allow the intake air flow between the secondary inlet port and the air source. A rotary engine defining different compression ratios through actuation of a valve is also discussed.

The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The disclosure further provides embodiments having stationary islands and casings that rotate about the island.

A method and apparatus for controlling an air input in a rotary engine, including selectively controlling a plurality of inlet ports communicating with an internal combustion cavity of the engine, the ports located serially downstream of the exhaust port relative direction of a revolution of a rotor of the engine. The inlet ports are controlled to alter air intake at various engine operational stages, such as start up, idle, etc., to allow for varying operational requirements to be met. For example: when a power demand on the engine lower than a predetermined threshold, control may be effected by opening a primary inlet port and closing a secondary inlet port; and, when the power demand exceeds the predetermined threshold, control may be effected by opening the primary inlet port and opening the secondary inlet port, the secondary inlet port being located such as to be in communication with the exhaust port throughout portions of the revolution of the engine to purge exhaust gases of the engine.