Abstract: A rotary engine is provided for providing torque. The engine includes a housing, a stator, a crank shaft, a rotor and a pair of vanes. The housing has an inner wall with an elliptical profile with major and minor axes. The stator has an outer wall and a double ellipsoid profile corresponding to the major and minor axes. The crank shaft is disposed at a junction of the major and minor axes, rotating about a spin axis orthogonal to the profiles. The rotor has an annular circular profile disposed between the inner and outer walls. The rotor turns on the crank shaft. The vanes radially slide within the rotor as the crank shaft rotates and as the vanes turn within the inner and outer walls.

Abstract: A six-stroke rotary-vane internal combustion engine includes a stator having working chambers for intake and compression of air-fuel mixture alternating with working chambers for expansion and removing of combustion products, and a cylindrical rotor including longitudinal grooves housing blades. Side walls of all the working chambers are formed by rotating parts of the rotor, the combustion chambers are formed as hemispherical recesses on a cylindrical surface of the rotor, the working chambers of the stator are formed as cylindrical borings with axes parallel to the stator axis and evenly spaced along an inner surface of the stator, each blade consists of separate plates freely displaceable relative to each other, each plate of the blade being made of two parts movable apart in axial direction by a spring, the number of blades is a multiple of the number of the chambers for intake of air-fuel mixture.

Abstract: One embodiment may include a rotary engine, whose cylinder is in doughnut-shape. A cross-section of the cylinder is circular. The engine includes a pair of rotation disks, a power disk and passive disk. A power-output shaft is coaxial with an axis of the cylinder. A power piston and passive piston rotate around an axis of the power-output shaft. A space between the power piston in front and the passive piston at the back is a working chamber. When combustion and expansion take place in the working chamber, the power piston will be pushed forward continuously by the expanding gases, and output power via the power-output shaft. The passive piston relies on a driving system to drive it moving forward. Volume of the working chamber varies within one revolution of rotation. Larger volume of the working chamber causes combustion and expansion. Smaller volume of the working chamber causes compression and emission.

Abstract: A rotary internal combustion engine including a rotor assembly where at least a first and a second of the combustion chambers have unequal theoretical volumetric ratios. Also, a rotary internal combustion engine including first and second rotor assemblies where at least one of the combustion chambers of the first rotor assembly and at least one of the combustion chambers of the second rotor assembly have unequal effective volumetric compression ratios and/or unequal effective volumetric expansion ratios.

Abstract: Electricity generators are provided that can include: members having opposing bases that include chambers to facilitate the conversion of source energy to mechanical energy with one of the members rotating in relation to another of the members and a housing about the rotating member. Generator components can be operably engaged to the housing and rotating member to generate electricity. Methods for generating electricity are also provided. The methods can include: rotating a first cylindrical member in relation to a fixed second member about a center rod along a shared axis within a housing; and generating electricity between conductive components along both the sidewalls of the first cylindrical member and the housing.

Abstract: The innovation concerns an orbiting planetary gearing system and an internal-combustion engine employing the same. In aspects, the engine can comprise an engine housing having a first wall delimiting a first combustion chamber, a first primary member having a first piston and a second primary member having a second piston. The pistons can also delimit the first combustion chamber. The first wall defines at least a section of a toroid, and the pistons are guided along a curved path defined by the section of the toroid. The primary members can be coupled to an intermediate member. In various embodiments, the intermediate member can couple motion of the primary members to a crankshaft via an orbiting planetary gearing system.

Abstract: A compound engine system comprising a rotary engine having a volumetric compression ratio lower than its volumetric expansion ratio, and a recess defined in the peripheral wall of the rotor in each of the chambers having a volume of more than 5% of the displacement volume of the chamber. The expansion in the turbine section compensates for the relatively low expansion ratio of the rotary engine.

Abstract: The present engine design can comprise one or more three-cylinder modules. Each module can comprise a left-hand combustion cylinder, a compression cylinder and a right-hand combustion cylinder. In an embodiment, the compression cylinder can function as a supercharger providing compressed air to the two combustion cylinders in order to improve performance and efficiency. Each module can comprise a specialized cylinder head comprising an intake air plenum configured to allow pressurized air to flow from the compression cylinder into each of the combustion cylinders. The flow of this pressurized air can be precisely controlled by valves that control airflow into and out of each of the three cylinders. Variable valve timing and computer controls can determine the exact amount of fuel, if any, which will be injected into the combustion cylinders to deliver high fuel economy while delivering an optimal level of power, horsepower and torque.

Abstract: A rotary engine includes a first rotary unit operable to provides a first phase of compression to a fresh air charge drawn in through an inlet port to the first rotary unit. A second rotary unit in communication with the first rotary unit through a first passage, the second rotary unit operable to provide a second phase of compression to the first phase of compression, a combustion phase and a first phase of expansion, the second rotary unit in communication with the first rotary unit through a second passage such that the first rotary unit provides a second phase of expansion to the first phase of expansion and an exhaust phase that exhausts the first rotary unit via an exhaust port. A first fuel injector is in communication with the second rotary unit operable to initiate the combustion phase and a second fuel injector is in communication with the first rotary unit operable to selectively initiate augmented operation.

Abstract: A rotary engine which provides a supplemental phase of compression between a first phase of compression and a second phase of compression.

Abstract: An improved rotary engine system has two stationary buffer seals located at the two ends of the minor axis of a rotor housing that divide the rotor housing into two separate volumes. A first volume is an intake and compression volume and a second volume downstream to the first volume is an expansion and exhaust volume. A rotating combustion chamber flow control device (CCFC) is synchronized with a rotor, for receiving compressed fluid from the first volume, for receiving fuel injected by a fuel injector located within a corresponding CCFC, for igniting and burning an air-fuel mixture, to allow combustion products to expand in the second volume, and for transferring the combustion products to the second volume. In one embodiment, the CCFC is synchronized with two longitudinal shafts fitted at centers of first and second housings, respectively, in each of which are located a pair of side by side rotors.

Abstract: An axial vane rotary combustion engine includes various performance improving features. These features include fluid film bearings that enable the vane assemblies to react large loads, a dual vane assembly configuration that share vane loads over two cylindrical bearing supports, a vane actuation mechanism that provides positive actuation even with cam surface tolerance variations, and various features to reduce friction to thereby improve efficiency and reduce heat generation.

Abstract: The problems of prior compressor structures relying upon conventional check valves are obviated by using, instead, flow control passages which operate to control flow while avoiding mechanical moving elements which may become problematical.

Abstract: A novel combustion engine with turbine like properties is disclosed. The novel engine (10) comprises an air intake, a first compressor stage, coupled to the air intake, a second compressor stage, coupled to the first compressor stage, a transfer valve, placed between the compressor stages and an annular race. Within the annular race, toroidal piston travels and passes over the transfer valve. The valve, toroidal piston and race form a temporary combustion chamber that expands as the piston travels within the annular race. Compressed air and fuel are introduced into the temporary combustion chamber and ignited to release the chemical energy and force the turbine piston to travel faster within the annular race. The first compressor stage is rotatably coupled to a crank shaft, which drives the first compressor stage and connects to an armature, which also connects the turbine piston so that useful work can be extracted from the energy released from the combustion of the fuel-air mixture.

Abstract: The present invention is an engine, which includes a positive displacement compression process, a variably fueled, continuous combustor and/or heat exchanger, and a positive displacement, work-producing expander. This arrangement avoids the traditional stochiometric mixture requirements utilized in spark-ignition based engines and the emission problems associated with diesel engines.

Abstract: The invention relates to an internal combustion engine comprising a rotor which is mounted in such a way that it can be rotated about a central axis in a housing, and in which cylinders are arranged in the same plane, pistons being introduced into said cylinders, the inner end of said pistons being connected to an eccentrically arranged axis in an articulated manner. The cylinders are rotatably mounted in the outer edge of the rotor respectively with the outer ends thereof, and end in the outer envelope of the rotor. At least one combustion chamber is arranged in the housing, the inner end of the chamber ending in the inner housing wall that surrounds the outer envelope of the rotor. The combustion chamber is arranged at an angle of between 45 and 90 degrees, especially between 70 and 85 degrees, to the radius of the rotor.

Abstract: A computer controlled rotary piston engine includes a blower housing containing a rotatable impeller assembly, for pushing ambient air into the housing, and forcing the air to pass through a normally open valve mechanism into a combustion chamber. A plurality of fuel injectors are selectively operable for injecting fuel into the combustion chamber, followed by selective operation of at least one spark plug for igniting the fuel/air mixture, thereby causing the valve mechanism to close, and the combustion gases to pass through a plurality of spaced apart intake manifolds into always open intake ports of a piston chamber for rotating a vaned or bladed rotary piston therein, followed by spent combustion gases being forced out of a plurality of spaced always open exhaust ports into an exhaust manifold. The distance the piston travels during a power cycle is adjustable, and inversely proportional to the frequency of combustion or number of combustion cycles within a given period of time.

Abstract: A multi-channel combustion device is provided. The device includes an inlet port, at least one radially partitioned inlet zone within the inlet port, and a plurality of circumferentially spaced combustion chambers in which deflagrative or detonative combustion occurs. The inlet port may have a plurality of separate, circumferentially partitioned inlet zones for supplying fuel and air mixtures to the inlet end of the combustion chambers. Each inlet zone is capable of introducing a different combustible mixture sequentially to a given combustion chamber as the chamber communicates with the inlet zones. The inlet of at least one combustion chamber is radially partitioned. At least one inlet zone is radially partitioned to permit radial stratification within the combustion chambers. The multi-channel combustion device may be a combustion wave rotor or a valved combustor.

Abstract: A combustion engine comprised of (i) at least one compression stage, (ii) at least one combustion unit, and (iii) at least one expansion stage is described. The compression and expansion stages include tongue and groove cylindrical rotors in sealing relation to one another for fluid volume displacement and transfer of rotational force from expansion of compressed fluid volumes following combustion. Related methods of providing a rotational force to a drive shaft are also described.

Abstract: A two stage rotary vaned internal combustion engine using cylindrical rotors that spin inside a pair of specially shaped chambers with extendable vanes that seal the space between the spinning rotor and the stationary chamber each rotor and chamber form a plurality of compression spaces connected by valves to combustion/expansion chambers the intake flow runs along the axis of the rotors and is partially pressurized before being directed into the compression chamber where further compression takes place and compressed air is then directed through the valve body into the combustion chamber where ignition and expansion take place causing the rotor to rotate exhaust takes place simultaneously with the next ignition and expansion process. This process takes place at the same time in all chambers. This engine will operate on gasoline and alternative fuels.

Abstract: A continuous combustion rotary engine (100) is provided for powering such vehicles as aircraft, boats and automobiles with an efficiency which approaches the total expansion of combustion gases. The continuous combustion rotary engine (100) includes a plurality of power stages (110, 130 and 150) for sequential progressive expansion of combustion exhaust gases in order to generate rotative forces on a plurality of main rotors (112, 114, 132, 134, 152, 154). Simultaneously, the driven rotors (112, 114, 132, 134, 152 and 154), acting in pairs, progressively compress air for use in supporting the continuous combustion in the central portion of the expansion section (92) within stage (110). The use of the same rotors to both be driven by the expanding combustion gases and compress the inlet air provides the instrumentality for cooling the rotors, the heat transferred therefrom serving to increase the efficiency of the compression process.

Abstract: A rotary internal combustion engine including a housing defining a combustion chamber; a first vane mounted for rotation in the combustion on a fixed axis; a second vane mounted for rotation in the combustion chamber on the fixed axis independently of the first vane; a separate ratchet mechanism respectively engaging the first and second vanes to preclude rotation of the vanes in one direction about the axis while allowing free rotation in the other direction; a converter mechanism, including an output shaft, drivingly connected to the vanes and operative to convert the rotation of the vanes into a unidirectional, constant speed rotation of the output shaft of the converter means; and a supercharger drivingly connected to the output shaft of the converter mechanism and operative to deliver a continuous charge under boost pressure to the input port of the combustion chamber to facilitate starting of the engine and preclude stalling of the engine under idling conditions.

Abstract: A rotary engine including a compressor, an external pressure vessel, an internal pressure vessel defining a combustion chamber, and a fuel nozzle opening into the combustion chamber. Both compressed air and fuel are pumped into the fuel nozzle. Water is sprayed into the compressed air prior to entering the nozzle. Compressed air and water are directed between the interior and exterior pressure vessels so that the water cools the walls of the interior vessel and is turned to compressed steam. A mixture of steam, compressed air and fuel is formed at the fuel nozzle and is directed into the combustion chamber where it is ignited by an ignitor to produce a high temperature high pressure gas. The high temperature high pressure gas is directed into a dynamic rotor cylinder where its pressure eccentrically rotates a dynamic rotor which is in turn coupled to an output shaft.

Abstract: An improved "Wankel-type" rotary engine wherein the same trochoidal cavity employed for effecting a four-phase internal combustion engine operation is also employed to perform a supercharging function in that air is compressed in one chamber (chambers being defined between seals of the rotor with the wall bounding the trochoidal cavity) and transferred to another chamber in synchronization with the latter making its transition from its intake to its compression phase, with such transference being carried out in a manner causing substantial turbulence. The engine can optionally be operated in a diesel mode with diesel fuel injection being made at the conventional phase condition, or as a spark ignition engine with gasoline carburetion of air fed to the supercharging compression chamber being effected. Engine exhaust heat is optionally applied to compressed air or air-fuel mixture as the latter is being transferred respectively in the diesel or spark mode of engine operation.

Abstract: An internal combustion power plant system provides a rotary engine and a rotary fuel/air mixture compressor for the rotary engine on a common driveshaft, coaxially mounting each end and supported between them by a gearbox which synchronizes operation of various ignition and valve and abutment components of the system; compressed fuel/air mixture is supplied to and ignited in a valve-isolated manifold chamber in the rotary engine in successive charges following which each ignited charge is valved radially into one of plural expanding chambers defined by the rotary engine rotor and abutment mechanism, where it urges rotation of the rotor and then exhausts radially; in preferred embodiment the exhaust actuates a parallel fuel-feed which booster pumps fuel/air mixture into the manifold chamber; detail improvements disclosed include designs of runners, abutments, valving and rotary compressor mechanism.

Abstract: The improved split cycle engine comprises a compression unit 1 mechanically connected to an expansion unit 3 via shaft 2 and to a load via a coupling or centrifugal clutch 5, and a second compression unit 7 which is mechanically connected by shaft 9 to a second expansion unit 8. Compression unit 1 is fed by compression unit 7 and its output is fed to expansion unit 3 via a variable cut-off valve. Fuel is burnt in the air supplied by compression unit 1. The exhaust of expansion unit 3 feeds expansion unit 8. At high cut-off ratios shaft 9 rotates many times faster than shaft 2 and its relative speed is reduced as the cut-off ratio is decreased. At high cut-off ratios the torque output is substantially higher than that of a conventional internal combustion engine so that a complicated transmission is not necessary.

Abstract: A variable volume gas generator for charging a self-contained power turbine having heat engines for generating hot compressed gases including a first and second module each forming motor for the production of the hot compressed gases, a third module connected to the first and second modules and which forms an air compressor to charge the heat engines, the modules comprising a fixed housing delimiting an annular space, a plurality of pistons which rotate in the same direction noted in the annular space, wherein four of the pistons are mounted in each module, first and second rods diametrically connecting the pistons in pairs and being further propelled by a cyclical speed variation which causes a volume variation in the space delimited by the radial surfaces of the pistons, a first and second shaft which are coaxial wherein the first rod of each module is mounted on the first shaft and the second rod of each module is mounted on the second shaft such that single connecting rod mechanism rotors of the modules h

Abstract: A rotary piston engine having a supercharging blower located in the intake passage upstream of the throttle valve. A lubricating oil supply system includes oil passages opening through oil discharge nozzles to the intake passage downstream of the throttle valve and to the rotor housing. Air passages are provided and communicating at one ends with the oil passages and opening at the other end to the intake passage between the supercharging blower and the throttle valve.

Abstract: Rotary piston engine having a main intake port in one side housing of the casing. The side housing is further formed with a supercharging air port which is connected with a supercharging passage leading from an air pump. The supercharging air port is so formed that it is opened substantially simultaneously with and closed later than the main intake port. A control valve may be provided in the supercharging passage to open the passage when the main intake port is substantially closed.

Abstract: Rotary piston engine having a main intake port in one side housing of the casing. The side housing is further formed with a supercharging air port which is connected with a supercharging passage leading from an air pump. The supercharging air port is so formed that it is opened substantially simultaneously with and closed later than the main intake port. A timing valve is provided in the supercharging passage to open the passage cyclically so that the supercharging is performed at the end period of the intake stroke. A centrifugal device controls the valve timing so that the valve timing is advanced under an increased engine speed.