This invention refers to the engine-building area; in particular, to internal combustion engines with rotating parts, more specifically to a rotary-vane internal combustion engine (ICE), which can be used on water, air and land transport vehicles.

The rotary-vane ICE featuring the inlet and outlet ports and ignition plug holes with air-fuel intake and compression chambers alternating with the combustion product expansion and removal chambers, the cylindrical rotor attached to the shaft with longitudinal grooves with blades and combustion chambers arranged on the cylindrical surface of the rotor, the side walls, the front and rear end shields, in this case the side walls are arranged in the form of cylindrical borings with the axes being parallel to the stator axis and spaced evenly all over its internal surface, each blade consists of separate plates with possible mutual displacement, in this case each blade plate is made of two parts being pulled apart by a spring in axial direction and the number of blades is equal to the number of air-fuel mixture intake chambers The result to be achieved in this invention consists in simplifying the ICE design with rotary parts and in increasing its reliability and adaptability to streamlined manufacture, preventing the unburned fractions of air-fuel mixture from being emitted into atmosphere as well as ensuring that the engine can be switched over to economic run.

Provided herein is a rotary steam motor comprising an inlet assembly, a rotor assembly, and an exhaust assembly. The inlet assembly includes an inlet port and an inlet housing, the inlet port being configured to allow steam to enter the inlet housing. The rotor assembly includes a rotor having a plurality of vane slots, a support shaft, and a plurality of vanes, wherein the support shaft is configured to rotate with the rotor, and each vane is configured to slidably engage within a respective vane slot. The exhaust assembly includes an exhaust port and an exhaust housing, the exhaust port being configured to allow steam to exit the exhaust housing. The rotary steam engine further comprises a variable duration throttle assembly, wherein the variable duration throttle assembly is configured to regulate the flow of steam into the rotor assembly from the inlet assembly.

Engines and methods execute a high efficiency hybrid cycle, which is implemented in a volume within an engine. The cycle includes isochoric heat addition and over-expansion of the volume within the engine, wherein the volume is reduced in a compression portion of the cycle from a first quantity to a second quantity, the volume is held substantially constant at the second quantity during a heat addition portion of the cycle, and the volume is increased in an expansion portion of the cycle to a third quantity, the third quantity being larger than the first quantity.

A Circle-Ellipse Engine comprises a stationary circular outer Housing having a fixed elliptical inner cam surface, and a separate internal round Rotor partitioned into equal segments that are populated by identical movable radial Vanes. During rotation, the end of the Vanes are positioned a constant distance from the elliptical inner cam surface of the Housing. The internal round Rotor has the same radius as the minor axis of the elliptical inner cam surface. During rotation, a variable height cavity is created representing the difference between the major and minor axes of the elliptical inner cam surface and the Rotor face.

The position of the radial Vanes is guided by the slots in the symmetrical Rotor, extending to the elliptical inner cam surface of the Housing. The precise extension is governed by a pin track machined into the dual End Plates.

There are no pistons, camshaft, timing chains, valves, valve lifters, rocker arms, connecting rods, or wrist pins. As a benefit, size and weight are significantly reduced when compared to a reciprocating engine of similar horsepower. Normal aspirated air is continuously drawn into the engine when an adjacent pair of radial Vanes passes the air inlet port. Similarly, exhaust products are expelled after a combustion event when the pair of adjacent Vanes passes over the exhaust port.

The resultant geometer results in a continuous implementation of the Otto Cycle; namely intake, compression, expansion or power stroke, and exhaust during a single rotation of the internal round Rotor.

Because the Otto Cycle is executed each revolution of the Rotor, the Circle-Ellipse Engine achieves the same power as a conventional reciprocating engine of the same displacement and compression ratio, at half the RPM. This implementation greatly reduces component ware and extends the life and maintenance cycle by a factor of four. As a side benefit, the power losses and vibration common to all reciprocating engines are eliminated.

A pneumatic motor with dual air intake includes a pneumatic cylinder and a rotor. The pneumatic cylinder includes a cylinder body, and an elliptic-cylinder-shaped accommodating room located in the cylinder body. The cylinder body has two air inletting paths, two air venting paths, two air venting holes and a front axial hole, which communicate with the accommodating room and outside. The rotor includes a rotor body rotatably accommodated in the accommodating room of the pneumatic cylinder, a plurality of grooves parallel provided on the rotor body, a plurality of vanes accommodated in the grooves respectively, and a front axle extended from the rotor body and inserted through the front axial hole. As a result, the pneumatic motor with dual air intake is lowered in friction of the rotor when it rotates, raised in power output, and lowered in vibration when in use.

A double-working-medium expander used for a two-stage organic Rankine cycle, comprising a cylinder body, a rotor disposed inside the cylinder body and provided with a plurality of slip sheets in a radial direction of the cylinder body, and a rotary shaft fixedly connected to the center of the rotor, wherein, the cylinder body is of an annular structure formed by two semi-oval structures which are in butt joint with unequal semi-major axes and equal semi-minor axes; the outer peripheral surface of the rotor can be rotationally tangent to the inner peripheral surface of the cylinder body at the butt joint position of the two semi-oval structures of the cylinder body; a low-temperature cycle volume for expanding the low-temperature working medium with a large flow and a small expansion ratio and a high-temperature cycle volume for expanding the high-temperature working medium with a small flow and a large expansion ratio are formed among two sides of the rotor and the cylinder body, respectively; and, a first fluid inlet and a first fluid outlet, which are arranged on the wall of the cylinder body, are communicated with the low-temperature cycle volume, and a second fluid inlet and a second fluid outlet, which are arranged on the wall of the cylinder body, are both communicated with the high-temperature cycle volume. In the present invention, two working mediums in the two-stage organic Rankine cycle can do expansion work in an expansion mechanism.

A hydraulic device can include two or more rings, a rotor having a plurality of vanes, and an adjuster. The two or more rings can be rotatably mounted within the hydraulic device and arranged adjacent one another configured for relative rotation with respect to one another. The rotor can be disposed for rotation about an axis within the two or more rings and can have a plurality of circumferentially spaced slots, each slot having at least one of the plurality of vanes located therein. The plurality of vanes can be configured to be movable between a retracted position and an extended position where the plurality of vanes work a hydraulic fluid introduced adjacent to the rotor. The adjuster can be configured to translate linearly to rotatably position the two or more rings relative to one another to increase or decrease a displacement of the hydraulic fluid between the rotor and the two or more rings.

The rotary combustion engine (1) has an alternated combustion device (11) adapted (19, 20) for injecting and combusting fuel in a combustion chamber (14, 15) which is fluidically connected to an oxidant gas inlet (12) in fluidic communication with an oxidant gas intake compartment (7), and to a burnt gas outlet (13) in fluidic communication with a burnt gas exhaust compartment (8), via an alternated fluidic communication device (16, 17, 18) configured to alternately bring the combustion chamber (14, 15) into fluidic communication with the oxidant gas inlet (12) and the burnt gas outlet (13).

A vane for a vane cell device comprising a stator and a rotor rotatably arranged in the stator with a plurality of guide grooves in each of which a vane can be movably mounted along a direction of movement. The vane has a high-pressure side, and a low-pressure side facing the high-pressure side, for fluid conveyed or flowing through a workspace of the vane cell device. The vane has a first side wall formed on the high-pressure side and a second side wall formed on the low-pressure side, wherein the first and second side wall are connected to each other by a plurality of ribs forming lateral limits of fluid channels. The first and second side wall are offset relative to each other so that the high-pressure side is only partially covered by the first side wall, and the low-pressure side is only partially covered by the second side wall.

A guided-vane rotary internal combustion engine including a plurality of working chambers which are separated from one another by way of vane assemblies which rotate with a rotor assembly about an axis employs a rotor assembly having a plurality of sectors wherein each sector is associated with a corresponding working chamber and a plurality of spark plugs wherein each spark plug is mounted within a corresponding sector for igniting an air/fuel mixture contained within a corresponding working chamber. A rotor disk is mounted upon the rotor assembly for rotation therewith and acts as a distributor through which energizing charges are conducted to the spark plugs. In addition, a controller is utilized for selectively activating or de-activating the working chambers of the engine upon the occurrence of a predetermined event.