Abstract: A rotating detonation engine including an annular main chamber configured to sustain a main shockwave that moves along a perimeter of the main chamber and an annular pilot chamber configured to sustain a pilot shockwave that moves along a perimeter of the pilot chamber. The main shockwave may be generated in response to the pilot shockwave extending into the main chamber.

Abstract: A rotary combustion engine, such as a Wankel engine has a rotor with a rotor pocket for receiving air-fuel mixture that is combusted therein to propel the rotor within the housing. Rotor air channels extend from an inlet that is configured in the compression chamber to an outlet configured in the rotor pocket to deliver compressed air-fuel mixture to said rotor pocket. The rotor air channels have an open portion, open on the face of the rotor and a closed portion extending as a conduit into the rotor to the rotor pocket. Fuel may be delivered to the rotor air channel from a rotor-gear fuel conduit that receives fuel from the fixed gear or a side-wall fuel conduit that receives fuel from a housing side-wall injector through a side-wall fuel transfer port. Rotor air channels may be configured to direct air-fuel streams to intercept one another to enhance combustion.

Abstract: A rotary roller motor is disclosed herein. The rotary roller motor is a four-stroke internal combustion engine, wherein the rotor “rolls” around the inside of the engine block. The rotor is a two-part rotor having an inner part with a shaft and an offset circular lobe, and an outer rotor fit around the lobe. Two barriers are provided around the rotor chamber, a compression/power barrier and an exhaust/intake barrier. The combustion chamber has a non-reversing compression barrier and a compression hold barrier regulating the combustion of gas.

Abstract: Methods and systems are presented for improving engaging automatic vehicle motive power source stopping and inhibiting automatic vehicle motive power source stopping. The methods and systems include processing driver inputs in a machine learning model and characterizing the driver in one of a plurality of driver groups. Automatic vehicle motive power source stopping and starting may be adjusted responsive to a group in which a driver is a member.

Abstract: There is described a system and method for controlling a temperature in the subchamber of a rotary engine. At least one first measurement of at least one engine operating parameter, a second measurement of the actual value of a temperature in the subchamber, and at least one third measurement of at least one aircraft operating parameter are received. A setpoint for the temperature in the subchamber is determined from the at least one first measurement and the at least one third measurement. At least one control signal is output to the engine for adjusting the actual value of the temperature in the subchamber towards the setpoint.

Abstract: A method of reducing carbonaceous deposits on a fuel injector is provided in which a first fuel composition is supplied to the fuel injector in a dual fuel engine, the first fuel composition comprising natural gas fuel and a first percentage of diesel fuel; and a second fuel composition is supplied to the fuel injector in a dual fuel engine, the second fuel composition comprising a second percentage of diesel fuel that is greater than the first percentage of diesel fuel to cause cavitation to occur within the fuel injector, thereby reducing carbonaceous deposits.

Abstract: Embodiments of methods and systems related to operating a mobile asset are provided. In one example, a method for operating a mobile asset includes supplying an engine with a fuel controller a first amount of a first fuel and a second amount of a second fuel and combusting the first fuel and the second fuel at a fuel combustion ratio in at least one cylinder of the engine, the first amount and the second amount being selected based on route information for a route along which the mobile asset is operable to travel and a projected exhaustion of the first fuel that does not precede a projected exhaustion of the second fuel, wherein the mobile asset is unable to operate with the second fuel alone.

Abstract: A method of operating an internal combustion engine having a housing, a piston mounted in the housing for complex motion about a plurality of axes and coupled to a shaft, and wherein occur phases of compression, combustion, and expansion in the housing, and wherein, in the compression phase, air introduced through an intake port into the housing is compressed by reducing volume of a compression chamber in the housing from an initial volume to a second volume that is less than the initial volume, and in the expansion phase, byproducts of combustion expand from the second volume to a third volume that is greater than the initial volume.

Abstract: A rotary engine including an insert in one of the walls of the outer body. The insert has a pilot subchamber defined therein communicating with the internal cavity and includes a subchamber wall surrounding the pilot subchamber. A main fuel injector is in communication with the internal cavity at a location spaced apart from the insert. A pilot fuel injector is in communication with the pilot subchamber. A heating element extends within the subchamber wall completely outside of the pilot subchamber, in heat transfer communication with the subchamber wall. An outer body for a rotary engine and a method of combusting fuel in a rotary engine are also provided.

Abstract: Gas engine arrangement having a gas engine, a gas rail, via which a first gas in the form of fuel gas can be supplied to at least one gas metering device of the gas engine, and a gas control section, which is designed to supply fuel gas to the gas rail via a supply path on the outflow side. A purge line is passed into the gas rail. The gas engine arrangement is designed to selectively supply fuel gas or a second gas to the purge line, and the gas engine arrangement is designed to displace gas from the gas rail and to discharge it via the supply path when the fuel gas or second gas is supplied to the purge line.

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: A rotary machine is described with a vane carried by a rotor in a housing. The vane includes: a central vane axis extending radially outward along a y-axis from a center of the rotor through the vane to the housing. A centrifugal force of the vane against the housing is primarily distributed with a first sealing element mounted on an end of the vane, such as a rotatable element supported by a rigid support. The rigid structure of the first sealing element facilitates use of a second flexible sealing element mounted on the vane end. The second flexible sealing element performs as a sliding seal between a trailing expansion chamber and a leading expansion chamber on opposite sides of the vane. The rigid seal and the flexible sliding seal typically function independently of each other as separate constituents of the tip or end of a given vane.

Abstract: A rotary engine includes: a frame; a flywheel rotor having an axle rotatably mounted on the frame; a plurality of erectable pistons respectively mounted in an annular trough concentrically recessed in a rim of the flywheel rotor; and a cylinder block fastened on a housing secured to the frame and cooperatively forming an engine cylinder with the annular trough of the flywheel rotor, whereby each erectable piston is operatively erected beyond a cylinder head of the engine cylinder to dynamically define an instant combustion chamber among the cylinder head, the cylinder block, the piston and the annular trough of the rotor; and whereby upon combustion and explosion in the combustion chamber, the explosion gases will force and drive the erectable piston to rotate the flywheel rotor for outputting mechanical energy.

Abstract: According to the invention, a rotary engine is disclosed. The rotary engine may include a body, a rotor, and an ignition element. The body may define a rotor cavity, an intake channel, and a first exhaust channel. The rotor may be disposed within the rotor cavity and may define at least one chamber. Each chamber may receive a fuel from the intake channel when the rotor is in a first position. Each chamber may also at least partially contain combustion of the fuel when the rotor is in a second position. Each chamber may further output an exhaust to the first exhaust channel when the rotor is in a third position. The ignition element may be in communication with each chamber when each chamber is in the second position.

Abstract: 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.

Abstract: A rotary engine and a rotary unit thereof are provided. The rotary engine includes an air-compressed rotary unit provided in an engine body and a power rotary unit moving in coordination with the air-compressed rotary unit. Each rotary unit includes an outer rotor and an inner rotor provided eccentrically within the outer rotor, inner teeth constituted by convex arc surfaces are formed in an inner circumference of the outer rotor and outer teeth constituted by concave arc surfaces are formed in an outer circumference of the inner rotor, such that intake and compression strokes of the air-compressed rotary unit and power and exhaust strokes of the power rotary unit are achieved during the engagement and disengagement between the inner and outer teeth. The rotary engine has a compact structure, a smooth output torque, a high power per liter, and can be widely used in fields of vehicle, power machinery, etc.

Abstract: This is an engine that uses combustion pressures and shock waves to provide moment about an axis on a rotor producing a torque. This engine is a torque driven power plant which can be used for a variety of energy applications. At the core of this engine is a large diameter right cylinder that uses internal vectored combustion to rotate a shaft that can be attached to various mechanisms for use in diverse applications. This engine can be scaled to be various sizes with the functionality of the engine unaffected. This engine has a unique internal rotational-recoil disk (piston head type) that rotates in a circle making it extremely efficient. This engine has directional intake valves and removes the exhaust through the center of the rotation-recoil disk.

Abstract: An internal combustion engine is provided. The engine comprises at least one combustion chamber. The engine is suitable for various types of fuel. The engine, depending on fuel type, may have at least one spark plug. The engine uses an external source of compressed oxidant, such as air, which is delivered from a compressor and/or pressurized storage tank. Compressed oxidant, such as air, is delivered directly into the combustion chamber. Fuel is delivered directly into the combustion chamber. Oxidant and fuel mixture is ignited either by means of a spark plug, laser ignition, or by other means, or ignites spontaneously, depending on fuel type and pressure in the combustion chamber. The engine may comprise at least one cylinder, or may be of rotary or other type. A hybrid vehicle based on such an engine is provided. An automatic parking system for such a vehicle is provided.

Abstract: A rotary internal combustion diesel engine (46) comprising: a posterior plate (78), an intermediate plate (80), and an anterior plate (82); a rotor-housing unit (46) on each side of the intermediate plate (80), each containing a yousroid chamber (48), and a 2-apex rotor (56) containing an aperture (58). The chamber (48) wall contains an intake valve (68), an exhaust valve (70), and a fuel supply device (72); in gasoline embodiments, an ignition device (76) is added; compressed air/gas and hydraulic embodiments, require an input port (74) and an output port (70a). A shaft (52) rotatably mounted, extends through the housing, having essentially rectangular segments (54) within the chambers (48). There are seals (not shown) on the rotor apices (60, 62) and on the anterior (82) intermediate (80), and posterior plate (78).

Abstract: The invention relates to a rotary piston engine, in particular a rotary engine of trochoidal design, with a side disk (4) on the exhaust side and a rotary piston (6) with at least of one, and preferably three, through-flow openings (6) through which the mixture can flow axially, wherein the side disk (4) on the exhaust side has a side exhaust port (43) and the at least of one through-flow opening (60) has an asymmetric internal contour (600) at least on its exhaust side, so that when the rotary piston (6) passes over the side exhaust port (43) the said side exhaust port (43) is not in fluid communication with an internal area of the through-flow opening (60). The invention further relates to a rotary piston (6) for a rotary piston engine.

Abstract: A first fuel charge having low reactivity (low cetane number) is injected into a rotary engine, e.g., a Wankel engine, sufficiently early during the intake stroke that a subsequent higher-reactivity injected fuel charge forms one or more stratified high-reactivity regions within the engine chamber. Compression ignition then begins at the high-reactivity regions and propagates to the lower-reactivity regions. Appropriate choice of the timings, quantities, and other parameters of the injections can allow control of the timing and rate of combustion, such that work output can be maximized, unburned fuel can be minimized, and chamber temperature can be controlled to reduce heat losses and NOx emissions. As a result, rotary engine efficiency can be enhanced while emissions are reduced. Since the invention can be implemented in a lightweight and compact rotary engine, it is well suited for use in hybrid and compact vehicles.

Abstract: The subject of the invention is a variable-volume rotary device with a housing (1) comprising an inner spherical cavity, inlet and exhaust ports and a bypass flow path. Within the housing (1) a rotary displacement member with spherical outer configurations capable of revolving around the center point of the spherical inner surface of the housing is mounted. Said rotary displacement member is equipped with a centrally disposed, disc-shaped partition (6) that forms a mutually isolated division in the spherical inner cavity of the housing (1) and has two pivot vanes (7, 8), splitting the housing cavity further into four isolated quadrants, the volume of which vary during gyration. Vanes (7, 8) are similar in shape to orange segments. Vanes (7, 8) are connected to opposing sides of and along the diameters of the central disc (6), and extend in mutually perpendicular planes, allowing for rotary movement.

Abstract: A rotary internal combustion engine includes an outer housing and an inner housing and an enclosure defined therebetween. At least one of the outer and inner housings is rotatable relative to the other and at least two barriers are disposed in the enclosure and divide the enclosure into a combustion chamber and an exhaust chamber. At least one barrier is rotatable relative to at least one other barrier and at least one barrier comprises a retractable barrier mounted along a pivot axis and is pivotable between an extended position and a retracted position. An intake port, exhaust port, and ignition source are also provided. A method of combusting a fuel comprises rotating a drive member to expand a combustion chamber and substantially isolate the combustion chamber from an exhaust chamber, and introducing and combusting a combustion fluid and a fuel in the combustion chamber as the combustion chamber is expanding.

Abstract: The invention relates to a novel pressure engine, in particular an internal combustion engine which includes an annular structure, a driven shaft running along the annular axis, an annular housing with a housing wall and at least one rotating piston that rotates in the annular housing along a circuit in a sealed manner in relation to the housing. The piston is rotationally fixed to the driven shaft by a connection member and delimits a segment shaped combustion chamber that rotates with the piston, at least on the side lying in the rotation direction when viewed from the combustion chamber. The chamber has connections at given points on the annular housing to a compressed air supply and to an exhaust system. This piston has a piston housing which contains an inner piston which is pushed towards the combustion chamber by a pre-tensioning force.

Abstract: A fuel-conditioning-method and coupled-combustion process incorporated into internal combustion engines minimizes exhaust emission and improves fuel economy. Gasification chamber 10 affixed into piston 12 is placed under piston crown 14, transfer port 18 carved into cylinder 20 wall connects into combustion chamber 22, arrow 26 indicates that gasified fuel is transferred from chamber 10 into combustion chamber 22 initiating combustion. When pressure inside combustion chamber 22 is higher than that inside chamber 10 a reverse flow fills chamber 10 with hot combustion gases. During piston 12 downstroke gasification chamber inlet/outlet 34 overpass bottom edge 36 part of transfer port 18, therefore hot combustion gases are shut close inside chamber 10 by cylinder 20 wall. When piston 12 is at BDC fuel injector 24 injects fuel that absorbs heat from entrapped combustion gases vaporizing. During piston upstroke gasification chamber inlet/outlet 34 reaches the bottom edge 36 and the cycle repeats.

Abstract: An apparatus for facilitating combustion in a rotary engine with planetary rotors orbiting inside a housing containing a main rotor. In various embodiments, the planetary rotor has a multi-faceted face that engages a bridge during the transition from the compression cycle to the combustion cycle with the bridge and face forming a dynamic seal; the planetary rotor has a face engaging a bridge during the transition from the compression cycle to the combustion cycle such that the bridge and face have a gap that allows gas flow from the trailing volume to the leading volume and the gap is sufficiently small to quench flame propagation from the leading volume to the trailing volume; and/or the face of the planetary rotor opposite a fuel injector has a pocket that allows the fuel cloud to expand without impinging or wetting the face of the planetary rotor.

Abstract: The rotary engine includes a circular stator, a circular rotor rotating about the stator; the rotor and the stator being separated by a circular cylinder and at least one element with two flanges. The rotor includes two compression pistons attached to the inner surface of the rotor. These two pistons are located at the two extremities of a first diameter of the rotor and kept substantially in contact with the outer surface of the stator. The stator includes a recess at each extremity of a diameter. Each recess forms a compression chamber with the compression piston positioned at the end of the recess in the direction of rotation of the rotor and one of the flanges of the element with two flanges, referred to as the cylinder head flange. The motive force is applied to the compression piston when the pressure of the gases inside the compression chamber is suddenly increased to a predefined value.

Abstract: A system for operating a vehicle including an engine operating on at least one type of fuel is provided. The system includes a locator element to determine a location of the vehicle, a characterization element to provide information about a terrain of the vehicle, a database to store characteristic information for each type of fuel, and a processor operable to receive information from the locator element, the characterization element, and the database. An algorithm is embodied within the processor with access to the information for creating a trip plan that optimizes performance of the vehicle in accordance with one or more operational criteria for the vehicle.

Abstract: The present invention relates to positive displacement pneumatic machines, and more particularly the present invention relates to internal combustion engines. A rotor-piston internal combustion engine of the invention comprises a body comprising a main cylindrical cavity in which a rotor-piston is concentrically mounted, the rotor-piston comprising radial protrusions and radial recesses on the peripheral surface thereof, the radial protrusions and radial recesses forming, in conjunction with substantially cylindrical inner walls of the body, a plurality of closed segmental cavities; combustion chambers comprising nozzles to inject fuel and spark plugs; three-blade separating rotors installed in the combustion chambers with the possibility of discrete turn through 120° with stops; and gas distribution devices comprising inlet channels and outlet channels.

Abstract: A rotary piston machine has a housing in which are arranged at least two pistons which are able to revolve together in the housing about an axis of rotation which is fixed with respect to the housing, the pistons being mounted slidingly in a piston cage which is mounted in the housing and revolves together with the pistons about the axis of rotation, the two pistons executing mutually opposing reciprocating motions while revolving about the axis of rotation in order alternately to increase and decrease the volume of a working chamber defined by end faces oriented towards one another of the two pistons and by the piston cage, the axis of rotation passing through the working chamber and the piston cage having a gas exchange opening for admitting and discharging gas to and from the working chamber.

Abstract: A device and a method for evaluating a sensor signal indicating the position of an accelerator pedal of a motor vehicle. For this purpose, the device compares the sensor signal to a first comparison level, and an idle state is ascertained if the first comparison level is undershot. When a start of the motor vehicle from rest is detected, a departure from the idle state is inferred if a second comparison level, which is lower than the first comparison level, is exceeded.

Abstract: The thermionic Rotodin is derived from a generating energetic hybrid system through which the contemporaneous action of three components is generated: 1) Thermodynamic combustion rotary engine (FIG. 4, n° 1); 2) Electric motor: integrator of dynamic power (FIG. 4, n° 3); 3) Thermionic cells: storage-generators of electric power (FIG. 4, n° 2). The combustion rotary engine and the electric motor have the mutual supports of the rotary axis without any friction, because the axis is held up in suspension by a double pneumatic bearing made of opposed vortexes and supplied with the exhaust gas through a whirling magnetic self-centring. The recovery of thermal energy from the re-circulation generated by the motor pump is used to feed the thermionic cells, which feed both the whole three phase electric system and the electronic monitoring system controlled by the frequency generator. The evaporator for the production of H2O vapour is used to feed the carburetion injector.

Abstract: A rotary engine has a first rotary unit and a second rotary unit. The first rotary unit has a chamber containing a remaining compressed air charge. After combustion in the second rotary unit, the resulting second unit exhaust is in fluid communication with said remaining compressed air charge via a second passageway. An injector is in fluid communication with said remaining compressed air charge in the first rotary unit. The injector injects fuel into the mixture containing the remaining compressed air charge in the first rotary engine and the second unit exhaust from the second rotary engine. This mixture is combusted either with a spark or via auto (diesel) ignition. In this way, the engine produces additional useful work by combusting the remaining compressed air charge and additional fuel. Alternatively, the injector described in the first rotary unit may be located in the second passageway.

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: The subject of the invention is a variable-volume rotary device with a housing (1) comprising an inner spherical cavity, inlet and exhaust ports and a bypass flow path. Within the housing (1) a rotary displacement member with spherical outer configurations capable of revolving around the center point of the spherical inner surface of the housing is mounted. Said rotary displacement member is equipped with a centrally disposed, disc-shaped partition (6) that forms a mutually isolated division in the spherical inner cavity of the housing (1) and has two pivot vanes (7, 8), splitting the housing cavity further into four isolated quadrants, the volume of which vary during gyration. Vanes (7, 8) are similar in shape to orange segments. Vanes (7, 8) are connected to opposing sides of and along the diameters of the central disc (6), and extend in mutually perpendicular planes, allowing for rotary movement.

Abstract: Rotary engine and operational methods wherein a rotor rotates within a stator having an enclosed combustion housing. Housing seals bear upon the rotor and seals on the rotor move in response to the housing interior wall. Combustion chambers are defined between the stator, stator seals, rotor and rotor seals. Multiple combustion chambers are provided for increased torque and varied firing frequencies. Multiple ignitions can be performed per chamber per revolution to provide high torque. The average firings per revolution and fuel and air introduction may be controlled to provide various frequencies and patterns of combustion chamber activity and operating pressures to optimize performance and economy.

Abstract: An ECU determines the presence/absence of a fault of a negative pressure generation device that has an ejector that generates a negative pressure that is greater than the negative pressure that is to be extracted from an intake manifold of an internal combustion engine, and a VSV that causes the ejector to function or stop functioning. The ECU includes a presence/absence-of-abnormality determination portion that determines the presence/absence of an abnormality of the negative pressure generation device on the basis of variation of the rotation speed Ne of the internal combustion engine in accordance with change in the state of operation of the VSV.

Abstract: This rotary internal combustion engine has two rotatable vane type pistons mounted for axial rotation in a sealed casing. In an exemplary cycle, one piston is released to rotate at or prior to initiating combustion in the combustion space between the two pistons, while the other remains fixed. As the free piston rotates around to the position where the fixed piston is located, it drives exhaust from a prior cycle out of an exhaust outlet and then compresses air towards the combustion space. The roles of the pistons are reversed on the next cycle. Two units may be operated in tandem so that the power stroke of one unit provides power to help finalize the cycle of the other. Hydrogen is used as a preferred fuel, and water preferably serves as a lubricant.

Abstract: A rotary combustion engine includes a peripheral housing, side housing plates, a piston, and an eccentric shaft, where the triangular piston mounted on the eccentric shaft rotates between the side plates around an epitrochoidal orbit with a long and short axis inside the housing to form three working spaces, where the gas exchange is controlled by an intake port and an exhaust port. Fuel is supplied by an injection nozzle located on the short axis of the peripheral housing, and combustion is initiated by a spark plug located shortly after the injection nozzle in the housing relative to the direction of rotation of the piston. Nozzle bores in the injection nozzle are designed in such a way that, in conjunction with a multi-fuel injection system, they guarantee reliable ignition of the fuel during each cycle.

Abstract: A hydrogen peroxide-fueled engine system is provided. Embodiments of the system include: a source outputting liquid hydrogen peroxide; a decomposition chamber including an inlet in fluid communication with the source for receiving the liquid hydrogen peroxide, an outlet, and a catalyst interposed between the inlet and the outlet; and a rotary expansion engine including a gas outlet, a gas inlet in fluid communication with the outlet of the decomposition chamber, a generally lobe-shaped expansion chamber in fluid communication with the gas inlet and the gas outlet, and a rotor contacting a surface of the lobe-shaped expansion chamber between the gas outlet and the gas inlet, the rotor including an output shaft and diametrically-opposed first and second sealing arms that pivot outwardly to contact the surface. In another aspect, a method of producing rotational energy from decomposition of liquid hydrogen peroxide is provided.

Abstract: A rotary combustion engine with at least one working unit, which has essentially a peripheral engine housing, a side housing plate on one side, a side housing plate on the power takeoff side, a triangular piston, and an eccentric shaft. The piston is configured of several parts, which are connected to each other. The connection is accomplished by electron-beam welding under vacuum, which yields excellent results as long as certain conditions are met. The one sidewall and the power takeoff sidewall of the piston are preferably welded to a piston housing, as a result of which the casting molds can be of simpler design and simpler contours can be used, which leads to welds of higher quality and to a decrease in the costs of casting.

Abstract: Systems, methods and apparatus' of converting an engine into a multi-fuel engine are provided. One embodiment reduces particulate emissions and reduces the amount of combusted gasoline or diesel fuel by replacing some of the fuel with a second fuel, such as natural gas, propane, or hydrogen. One feature of the present invention includes a control unit for metering the second fuel. Another feature of the present invention includes an indicator that indicates how much second fuel is being combusted relative to the diesel or gasoline. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Abstract: The present invention relates to a design and method of operation of an improved rotary piston engine. In particular, a preferred embodiment of the present invention is directed to a rotary engine with improved reliability, comprising a housing, having side portions and a peripheral portion defining a chamber, a rotor, disposed within the chamber, and at least one exhaust port in one of the side portions.

Abstract: The Quasiturbine (Qurbine in short) described in patent U.S. Pat. No. 6,164,263 uses a rotor arrangement peripherally supported by four rolling carriages, the carriages taking the pivoting blade pressure-load, of the blades forming the rotor, and transferring the load to the opposite contoured housing wall. For the same, similar or other applications, the present invention discloses a central, annular, rotor support for the rotor geometry defined by the pivoting blades and associated wheel-bearings, while still maintaining the important center-free engine characteristic. The pressure-load on each pivoting blade is taken either by its own set of wheel-bearings rolling on annular tracks attached to the central area of lateral side covers forming part of the casing, or is cancelled out in symmetrically pressurized fluid energy converter mode through the central holding action of annular power sleeves.

Abstract: An internal combustion rotary engine generating continuous torque throughout an entire combustion cycle by an inverse displacement of a moving chamber and stationary convex surface is described. A rotary engine having one or more of asymmetric chambers, asymmetric crank shaft placement, and a mechanical crank arm of varying length is disclosed. An engine having greater horsepower output per unit of engine displacement than traditional piston or rotary engines is described.

Abstract: An exhaust-gas purification installation for purifying exhaust gas from an internal combustion engine includes an exhaust-gas catalytic converter which is arranged in an exhaust pipe of the internal combustion engine and a catalytic fuel reformer for generating a hydrogen-containing reformer gas which can be fed to the exhaust pipe on an entry side of the exhaust-gas catalytic converter. It is possible for a hydrocarbon-containing fuel, which can be used to operate the internal combustion engine, to be fed to the fuel reformer in order to generate the reformer gas. An exhaust-gas heater can heat the exhaust-gas part-stream which is fed to the fuel reformer. In a method according to the invention, an exhaust-gas part-stream which is removed from the exhaust pipe is heated and fed to the fuel reformer.

Abstract: There are provided a control device, a control method, a control unit, and an engine control unit, which are capable of controlling a controlled object with relatively large phase delay and dead time, while attaining elimination of lag in control timing between the input and output of the controlled object and improvement of control accuracy at the same time. A state predictor calculates a deviation (output deviation) between an output from an oxygen concentration sensor and a predetermined target value at a predetermined deviation calculation period. Then, a DSM controller calculates a target air-fuel ratio for converging the output from the oxygen concentration sensor to the predetermined target value, according to the calculated deviation, based on any one of a &Dgr; modulation algorithm, a &Dgr;&Sgr; modulation algorithm, and a &Sgr;&Dgr; modulation algorithm at a predetermined calculation period shorter than the predetermined deviation calculation period.

Abstract: A fuel injector, in particular for direct injection of fuel into the combustion chamber of an internal combustion engine having mixture compression and spark ignition, has an armature, which cooperates with a solenoid, and a valve needle, which is connected to the armature, and on which a valve-closure member is provided which, together with a valve-seat surface, forms a sealing seat. The valve needle has a conical area, which cooperates with a conical recess in the armature so that the armature, is joined to the valve needle in a friction-locking and form-locking manner.

Abstract: The present invention relates to a design and method of operation of an improved rotary piston engine. In particular, a preferred embodiment of the present invention is directed to a rotary engine with improved reliability, comprising a housing, having side portions and a peripheral portion defining a chamber, a rotor, disposed within the chamber, and at least one exhaust port in one of the side portions.

Abstract: The present invention relates to a design and method of operation of an improved rotary piston engine. In particular, a preferred embodiment of the present invention is directed to a rotary engine with improved reliability, comprising a housing, having side portions and a peripheral portion defining a chamber, a rotor, disposed within the chamber, and at least one exhaust port in one of the side portions.