Abstract: Improvements to an engine comprise an air compressor cylinder with a piston, a combustion chamber cylinder with a piston. An engine has added an expansion chamber cylinder with a piston. Pistons each have a connecting rod and connecting rod head and associated parts adapted for reciprocating motion via combustion products, and a transmission associated with the engine. Improvements are to the piston seals, ignition assembly, valve shape and stem/rocker, valve operating mechanism, construction of head, heat management/heat shield, connecting rod/piston rotator, engine balancing, fuel pump placement, and a machining process.

Abstract: New exemplary heat exchange configurations that incorporate internal or external surfaces equipped with perturbators, for changing the thermal behavior of the system, or for modulating the surface temperature distribution of the flow surfaces. This is achieved by applying an acoustic wave to the fluid flow in a heat exchange passage, and selecting the frequency of the acoustic exciting wave to be the same as the acoustic resonance frequency of the heat exchange passage itself. As the traveling waves interact with the boundaries confining the heat exchange passages, constructive interference of the incident and reflected waves give rise to a standing wave. Thus, the heat exchange passages act as a resonator, and by superimposing this standing wave on the separating and reattaching fluid flow, significant heat transfer improvement can be achieved. This is accomplished without the need to significantly increase the pressure required to achieve the desired through flow.

Abstract: A compact energy cycle construction that utilizes a working fluid in its operation is disclosed having a compact housing of a generally cylindrical form, an orbiting scroll type expander, a central shaft which is driven by the expander, a generator having a rotor and a stator with the central shaft being mounted to the rotor for rotating the rotor relative to the stator, a pump mounted to the central shaft, an evaporator positioned between the expander and the generator and surrounding the central shaft, and the orbiting scroll type expander, the central shaft, the generator, the pump, and the evaporator being housed within the compact housing to form an integrated system operable in accordance with an energy cycle.

Abstract: A positive displacement rotary motion device including in one example a pulse detonation device. Also; an indexing system for a rotor assembly where in one example the indexing system regulates the rotational location of drive rotors. In one example the rotors are configured to rotate about a shaft.

Abstract: The invention relates to mechanical engineering. The present device for obtaining mechanical work from a non-thermal energy source comprises a cylindrical housing, a rotor, a vacuum chamber, movable elements, and systems for removal and supply of a working fluid. The rotor is provided with blades and is fastened to the power shaft, disposed inside the housing. The chamber is formed by the outside surface of the bladed rotor and the inside surface of the housing. The movable elements are mounted in diametric opposition inside the housing of the device and divide the chamber into equal parts. The shaft and blades of the rotor are hollow. The inlet ports and outlet ports are provided in surfaces of the rotor blades. Or outlet ports are provided in the housing. The technical result is an increase in the output, efficiency and environmental friendliness of the device, together with a simplified design.

Abstract: A supercharger comprising a series of parallel rotors disposed within adjacent compartments within the housing of the supercharger. The rotors are designed to physically compress air that is drawn into the system in a gradual, linear manner, rather than in a stepped manner as is common to most conventional superchargers, in order to reduce the amount of energy loss to thermal energy and reduce the stress imparted upon the system via the compression of the air. The rotors comprise a shaft and a helical thread. The diameter of the shaft increases and the pitch of the helical thread decreases from the position of the inlet of the chamber in which the rotor is disposed to the position of the outlet of the chamber in which the rotor is disposed.

Abstract: A system is disclosed for use with a machine having an engine with at least one cylinder. The system may have at least one injector configured to inject fuel into the at least one cylinder, and a controller in communication with the at least one injector. The controller may be configured to determine an injection duration of the at least one injector. The controller may also be configured to calculate a fuel consumption value for the machine based on the injection duration.

Abstract: Combustion engine having a rotor, a housing and at least two combustion chambers which are formed between the rotor and the housing, wherein the housing has at least one ignition recess on the side thereof which faces the rotor, into which ignition recess a fuel feed and ignition system opens. At least one valve device which is mounted rotatably in the housing is configured for dividing the combustion chambers at least temporarily into an ignition chamber and a compression chamber. The valve device has at least one rotor passage section, at least one closing section and at least one gas passage section. Alternatively, the valve device temporarily at the same time disconnects a compression chamber from a first combustion chamber and an ignition chamber from a second combustion chamber, wherein there is a fluidic connection during this time between the ignition chamber and the compression chamber.

Abstract: A liquid fuel derived from processed biomass having extremely low water content and suitable for use in diesel engines or as an additive to petroleum based fuels, or which can be used as a petroleum or coal slurry substitute in those uses where a lower cost fuel have reduced emission is desired, is described.

Abstract: A method of operating an internal combustion engine having a housing with a recess, and a piston rotatably mounted in the housing, wherein the housing and the piston form, over the course of shaft rotation, initial, second and third volumes in differing amounts for the phases of compression, combustion and expansion, in a manner that is smooth and continuous, which method includes (a) compressing air into a chamber formed by the recess and the piston, (b) introducing fuel into the chamber of compressed air, and (c) igniting the mixture of compressed air and fuel.

Abstract: An internal combustion engine includes in one aspect a source of a pressurized working medium and an expander. The expander has a housing and a piston, movably mounted within and with respect to the housing, to perform one of rotation and reciprocation, each complete rotation or reciprocation defining at least a part of a cycle of the engine. The expander also includes a septum, mounted within the housing and movable with respect to the housing and the piston so as to define in conjunction therewith, over first and second angular ranges of the cycle, a working chamber that is isolated from an intake port and an exhaust port. Combustion occurs at least over the first angular range of the cycle to provide heat to the working medium and so as to increase its pressure.

Abstract: The internal combustion engine includes at least one compression chamber, formed by a housing and therein compressor rotary pistons rotating on a shaft with compressor sealing strips, on which optionally movable toggle sealing strips are arranged. The compression chamber is in gas connection with at least one ignition chamber and this ignition chamber is in gas connection with at least one expansion chamber. This chamber is formed by the housing and by an expansion rotary piston rotating in this chamber on a shaft. An at least one flywheel rotating in the housing on a shaft provided for the power transfer together with the compressor rotary piston forms a compression chamber and together with the expansion rotary piston forms an expansion chamber. The ignition chamber is equipped with a device for igniting a compressed gas mixture.

Abstract: An improved internal combustion engine of the four-stroke variable volume type operates by refraining from introducing substantial fuel into the working medium during the compression stroke until substantially maximum pressure of the working medium has been reached and utilizing at least one of the following processes: (a) causing combustion of fuel under substantially constant volume conditions; and (b) causing the power stroke to provide a larger volume to combustion products than the compression stroke provides to the working medium. Related methods are also provided.

Abstract: A split-cycle variable capacity rotary spark ignition engine system having at least a first rotary configuration (C1) including repetitively volume variable working chambers [60, 61, 62] for carrying out the combustion-expansion and exhaust phases and at least a second rotary configuration (C2) including repetitively volume variable working chambers (70, 71, 72) for carrying out the intake and compression phases of a four phase engine cycle. Dividing seal means (73, 74 of C1, 75, 76 of C2) for periodically dividing each of successive working chambers into a volume enlarging leading portion and a volume contracting trailing portion. Discharge valve means for varying compression chamber capacity through discharging fraction of trapped intake gas from compression chambers. A first phase altering arrangement is provided for varying the phase relation between the first rotary configuration (C1) and the second rotary configuration (C2).

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 combustion engine, which is highly efficient, noiseless and lightweight, includes a combustion chamber without pistons. The combusted and expanded air exiting the combustion chamber flows into a displacement pump, such as a gear pump or radial vane pump. The displacement pump drives the load, and, in addition, another smaller displacement pump, which pressurizes fresh air and introduces same, via a feedback loop, into the combustion chamber. Gas or other burnable fuels are introduced in the combustion chamber, so that a continuous fuel burning will occur, after being ignited. The ratio of bigger to the smaller pump is influenced by the percentage of expansion of the air in the combustion chamber.

Abstract: A combustion apparatus having a housing including an inner surface that defines at least one chamber, a rotor, a rotor shaft, an intake shaft, an exhaust shaft, and a gearing mechanism. The chamber includes an intake valve port and an exhaust valve port, and the rotor shaft is coupled to a gear at one end and has at least two opposing flat surfaces received by an opening in the rotor. The intake and exhaust shafts are geared to the rotor shaft and have at least one opening each that is aligned with the intake and the exhaust valve ports. A gearing mechanism selectively controls the duration in which the openings are aligned with the ports. Two or more rotors may be utilized to produce more power and reduce vibration.

Abstract: An improved internal combustion engine of the four-stroke variable volume type operates by refraining from introducing substantial fuel into the working medium during the compression stroke until substantially maximum pressure of the working medium has been reached and utilizing at least one of the following processes: (a) causing combustion of fuel under substantially constant volume conditions; and (b) causing the power stroke to provide a larger volume to combustion products than the compression stroke provides to the working medium. Related methods are also provided.

Abstract: The aim of the invention is to improve the efficiency of an axial-piston motor. To this end, the axial-piston motor comprises at least one compressor cylinder, at least one working cylinder and at least one pressure line guiding the compressed fuel from the compressor cylinder to the working cylinder via a combustion chamber. The fuel flow from the combustion chamber to the working cylinder is controlled by at least one control piston driven by a control drive, and the control piston is subjected to a compensation force oriented against the combustion chamber pressure, on the side thereof facing away from the combustion chamber, in addition to the force applied by the control drive.

Abstract: A combustible fluid operated orbital engine has plural sets of cooperating cylinder and piston members with respective parallel axes of rotation, respective cylinder and piston carrier wheels with respective axes of rotation parallel to the members' axes of rotation carrying said members circularly and orbitally and at all times in opposed relation on a common longitudinal axis along intersecting counter paths. Respective gearing structures supported by the cylinder and piston carrier wheels rotate the members counter to their circular motion direction to maintain their opposed relation for their periodic interfittment when their respective paths intersect. A combustible fluid supply is provided to the cylinder member for combustion coincident with the periodic interfittment in engine operating relation. The common longitudinal axes of the cylinder/piston sets are at all times parallel with each other.

Abstract: A positive-displacement turbine engine comprising two rotors, exhaust opening for discharging exhaust gas, intake opening for receiving air and fuel or air-fuel mixture, turbine channels, turbine shaft, plurality of turbine blades, and spark plug. The rotors share a single shaft and are positioned in the opposite sides of the combustion head. Each of the turbine channels has a constant depth and varying width and comprises an intake zone, compression zone, combustion-expansion power-stroke zone, and exhaust zone. Each of the turbine channels widens in the intake zone, narrows in the compression zone, widens in the combustion-expansion power-stroke zone, and narrows in the exhaust zone. The turbine blades maintain a constant lateral orientation while the two rotors rotate. Each turbine blade has a blade-rod with two ends and a downward-offset crank on one end of the blade-rod that maintains the turbine blade in a constant horizontal orientation during rotation of the rotors.

Abstract: The split-chamber rotary engine includes a rotary power module having a case with a circular rotor installed therein. At least one, and preferably two or more combustion chambers are formed peripherally in the rotor. The generally circular rotor cavity of the case includes at least one, and preferably two or more, peripheral expansion chambers. A corresponding number of reciprocating compressor modules are installed upon the case, with the compressor module axis being aligned generally tangentially to the rotor periphery. The compressor module includes concentric reciprocating pistons and valves that compress the air charge and transfer the compressed charge to the rotary power module for power production. The compressor module is driven purely by combustion gas pressure acting upon its inboard piston. No mechanical linkage exists from power module to compressor module. The engine may include multiple rotor and case rows, as desired.

Abstract: An internal combustion engine includes in one aspect a source of a pressurized working medium and an expander. The expander has a housing and a piston, movably mounted within and with respect to the housing, to perform one of rotation and reciprocation, each complete rotation or reciprocation defining at least a part of a cycle of the engine. The expander also includes a septum, mounted within the housing and movable with respect to the housing and the piston so as to define in conjunction therewith, over first and second angular ranges of the cycle, a working chamber that is isolated from an intake port and an exhaust port. Combustion occurs at least over the first angular range of the cycle to provide heat to the working medium and so as to increase its pressure.

Abstract: An internal combustion engine having at least one working chamber limited by a piston and means for fuel injection, wherein said fuel injection means are arranged in a separate ignition chamber communicating with said working chamber, and means for tuning said ignition chamber and fuel injected by said fuel injection means such that substantially only burnt, expanding combustion gas enters the working chamber.

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 sump housing for scavenging lubricant is disclosed herein. The sump housing includes an outer wall defining a chamber. A lubricated structure operable to rotate can be disposed within the sump housing. The sump housing also includes an out-take for lubricant scavenging. The out-take extends across a chordal arc of the chamber. The out-take includes an upstream first portion of the outer wall diverging away from the chordal arc at a first rate. The out-take also includes a downstream second portion of the outer wall opposite the first portion. The second portion diverges away from the chordal arc toward the first portion at a second rate greater than said first rate to define a blunt wall facing the first portion for reducing the likelihood that windage will limit lubricant scavenging.

Abstract: A thermal engine that comprises a rotary element. A plurality of drive elements are arranged in the rotary element. Each drive has a plurality of piston/cylinder arranged around a common central expansion space. Piston heads of the pistons abut on a power transmission surface of the rotary element in order to drive the same.

Abstract: A rotary piston and cylinder assembly having two rotary piston and cylinder devices, each device including a rotor and a stator, the stator at least partially defining an annular cylinder space, the rotor being in the form of a ring, and the rotor having at least one piston which extends from the rotor ring into the annular cylinder space. In use the at least one piston is moved circumferentially through the annular cylinder space on rotation of the rotor relative to the stator, the rotor body being sealed relative to the stator, and the device further having cylinder space shutter means which is capable of being moved relative to the stator to a closed position in which the shutter means partitions the annular cylinder space, and to an open position in which the shutter means permits passage of the at least one piston, the cylinder space shutter means including a shutter disc, wherein the devices are connected by a transfer passage.

Abstract: An energy transfer machine, for example, a positive displacement internal combustion device, has a fixed outer housing, an internal rotating carrier and one or more inner rotors with rotational axes which are offset from the inner rotor carrier rotational axis. Projections from the fixed outer housing and rotor mesh with each other to define variable volume chambers. In another energy transfer machine, in which the outer housing may be fixed or rotating, projections of the rotor are expandable within cylinders defined by projections of the outer housing.

Abstract: An engine is shown and disclosed having individual components that can be optimized depending upon the situation, application or desired performance of the engine. The individual components perform the intake, compression, combustion, expansion and exhaust elements of the cycle. These individual components can all be optimized for the particular application in which this engine is designed. The components can be easily individually controlled either mechanically or electrically and easily removed for repair or replacement.

Abstract: A heat engine having a rotary vane compressor and a rotary vane turbine operates in a highly efficient thermodynamic cycle which includes a power expansion phase up to ambient pressure and a limited temperature constant volume combustion followed by a constant pressure combustion and/or a constant temperature combustion. A compound propulsion engine utilizing the thermodynamic cycle has a primary stage having an axial compressor and a rotary vane turbine, and a secondary stage having an axial turbine and a rotary vane compressor, the two stages being aero-thermodynamically coupled to each other without provision of an interconnecting drive shaft.

Abstract: A rotary combustion engine with one or more working units, which include a peripheral housing, a front housing plate, a rear housing plate on the output side, an eccentric shaft, and a piston, where the eccentric shaft includes an eccentric, and front and rear sealing parts. Lubricating oil is conveyed by an oil pump from an oil tank through the eccentric shaft to first and second main bearings, and to an eccentric bearing, from which a bevel on the front sealing part conveys it to a piston space, from which it is conveyed by way of a bevel on the piston and a rear bevel back to the oil tank to close the oil circuit. The bevels direct the oil circulation from the front of the working unit to the rear, reduce splash losses, and increase the cooling action on the internal surfaces of the piston.

Abstract: The rotary piston power system includes a housing having a drum and a cover rotatably mounted on the drum. The drum has high pressure and low pressure ports defined in its peripheral wall and a central separator wall having arcuate end faces and a pair of semicylindrical recesses defined in opposing sidewalls. A pair of pistons are rotatably mounted on axles on opposite sides of the separator wall and fit closely between the separator wall and the peripheral wall. Each piston has a plurality of radially disposed cylindrical recesses defining slots in the piston's peripheral wall. The cover has a plurality of radially disposed vanes extending into the drum defining a number of cylinders or chambers double the number of recesses defined in a single piston. An input/output shaft extends from the opposite side of the cover for coupling to a prime mover or to a load.

Abstract: A three-stage internal combustion rotary engine, comprised of: a compressor feeding compressed air to a combustor for compression, fuel injection, combustion, and expansion of gases which rotate the rotor. The combustor rotor generates torque and drives the compressor and afterburner rotors simultaneously. The afterburner receives the combusted gases and scavenged air from the combustor for secondary combustion and expels the exhaust gases. Each unit consists of a housing joined together on a common axis and a rotor with a shaft mounted in an eccentric position of the housing side-walls. The shafts are interconnected by splines. The rotors have radial blind slots which contain slidable, movable vanes fitted with half-round knobs on opposite sides, aligned with the top surface and fit in the hemispherical grooves on the interior side-walls of the housing. This maintains a permanent contact with the interior housing periphery, regardless of gas pressures and rotating speed.

Abstract: A rotary piston machine with a housing forming a prismatic cavity with a cavity wall. The cross section of the prismatic cavity is a cavity oval. A rotary piston is guided for rotary movement in the cavity. The rotary piston moves in consecutive intervals of motion from one blocking position to an adjacent end position. The rotary piston, during the consecutive intervals of motion rotates, in the same rotational direction, alternatingly about one of two different axes. A transmission arrangement transmits the rotary motion about two axes. When the rotary piston reaches a blocking position, there is an associated larger diameter cavity circular arc, in which the larger diameter piston circular arc was slidingly guided during the preceding interval of motion.

Abstract: A device to convert energy having exterior and interior rotors where the number of legs (?) of an interior rotor divided by the number of chambers (X) defined by the fins of the outer rotor is equal to the effective radius of the inner reference circle ri divided by the effective radius of the outer reference circle ro (i.e. ?/X=ri/ro). Where the surface of the fins of the outer rotor and the toe and heel portion of the interior rotor allow for a sealed chamber for a finite amount of rotation of the inner and outer rotors.

Abstract: The invention relates to propulsion engineering and particularly to internal-combustion engines. The problem solved by the present invention is improving fuel efficiency and ecological compatibility, as well as providing the ability to set advance ignition at higher rotation, increasing the rotation frequency of the working shaft and decreasing its vibration, thus making the manufacture of such engines more cost effective. This problem is solved by the operational rotor being oval-shaped when viewed in cross-section, whilst the compression rotor being square-shaped when viewed in cross-section.

Abstract: A rotary engine is provided with solid vanes which extend through the rotor and engage opposing interior wall portions of the stator housing. A series of grooves in the interior wall permit the expanding exhaust gases to by-pass the minimal surface area of vanes proximate to the combustion chamber to engage the larger surface area of a vane which is protruding more significantly from the rotor. This robust rotary engine is preferably made of cast iron, having internal portions coated with ceramic so that it readily can operate at temperatures exceeding 850° F. The heat energy is utilized to obtain maximum productive work rather than being discarded as a waste product as is typical with most state of the art power plants, resulting in an efficiency rating exceeding 60%.

Abstract: A microturbine for the generation of mechanical and electrical power comprising a positive displacement axial vane rotary compressor and an axial vane rotary expander. The compressor and expander are joined by a common shaft. The system further includes at least one combustor for heating a driving fluid prior to its entering the expander. The driving fluid, such as air, enters the compressor at ambient conditions of pressure and temperature and is compressed. The compressed driving fluid is preheated by the exhaust from the expander, then passes through a combustor to bring its temperature to a desired expander inlet temperature and then enters the expander where the expansion force of the hot driving fluid acting against the vanes of the expander is translated into rotation of the common shaft for driving both the compressor and a suitable power device such as an electrical generator.

Abstract: An engine including a housing formed with a pair of side-by-side intersecting substantially cylindrical cavities, and a pair of counter-rotating power rotors rotatably mounted within the cavities. The pair of power rotors include intermeshing lobes that each define open ended combustion chambers.

Abstract: An internal combustion engine including a housing, an intake port defined in the housing, an exhaust port defined in the housing, and a generally cylindrical combustion chamber defined in the housing. The combustion chamber communicates with the intake port and the exhaust port and a combustion geroter is received by and rotatable within the combustion chamber. During operation, the combustion geroter receives a fuel mixture, compresses the fuel mixture, combusts the fuel mixture, and discharges the combusted fuel mixture to the exhaust port.

Abstract: An internal combustion rotary engine which includes a housing encased rotor having: cam actuated inwardly and outwardly extending vanes, a combustion chamber communicating with a fluid inlet port to the vanes within the housing, and an exhaust chamber communicating with the fluid outlet port from the vanes of the housing, air and fuel injectors associated with the combustion chamber for delivery of an air and fuel mixture to the combustion chamber, and igniter means associated with the combustion chamber for igniting air and fuel mixture within that chamber. Controls are provided to properly control the sequence of air and fuel injection, fuel ignition and exhaust valve opening and closing during operation of the engine to provide simpler and more economical rotary engine.

Abstract: A rotary internal combustion engine has a shaft, a compression chamber, an ignition chamber, a center wall, a first rotor, and a second rotor. The shaft is fixed to the rotors while being rotatably mounted to the compression and ignition chambers. The compression chamber has an oval shaped chamber wall and receives fuel and compresses the fuel. The ignition chamber has an oval shaped chamber wall and receives compressed fuel from the compression chamber and combusts the compressed fuel. The center wall is located between the compression chamber and ignition chamber and allows passage of compressed fuel from the compression chamber to the ignition chamber. The first rotor has a circular perimeter surface and is rotatably received within the compression chamber. The second rotor has a circular perimeter surface and is rotatably received within the ignition chamber.

Abstract: A rotor for use with a rotary machine, and a rotary machine incorporating such, the rotor having a pair of parallel side surfaces, and a curved perimeter surface formed therebetween formed of a plurality of contiguous mutually tangential curved portions including include a major portion defining a first major arc subtending a predetermined angle at a predetermined center of rotation, and having a first radius; a minor portion defining a first minor arc subtending a predetermined angle at the predetermined center of rotation, and having a second radius, shorter than the first radius, the major and minor arcs being arranged along an axis of symmetry; and a pair of similar, intervening curved portions extending tangentially between major and minor arcs, each of the pairs formed of a second major arc and a second minor arc, of predetermined radii; the curved perimeter surface shaped such that when mounted for coplanar, non-touching, and same-directional rotation with another rotor of identical construction, and h

Abstract: A modified spiral internal combustion engine is disclosed having a cylindrical housing, an intake end and a combustion end. A central shaft to which at least 2 spirals are attached is interposed through the housing. Fuel mixture enters the housing through an intake port and travels along the spirals toward the combustion end. The rotation of each of the spirals forms a sealed combustion chamber in the combustion end of the housing as they pass over the indentation in the end plate, which has the ignition devise. Ignition of the fuel within the chamber exerts a force on the combustion chamber portion of the spiral causing the central shaft to rotate. The rotation of the central shaft causes the combustion chamber portions of each spiral to individually pass by an exhaust port in the housing after they have ignited, allowing the spent gases to escape.

Abstract: The engine has an input system formed with a fluid displacement pump that enables substantially continuous pumping from a low-pressure side to a high-pressure side substantially without any backflow or backpressure pulsations. The output system, in one embodiment, is an output system having a turbine rotation about an axis that is substantially orthogonal to the pressure flow originating from the prime mover. The output system may include a first turbine which provides for the mechanical work output of the engine and a second turbine which feeds back to drive the input system. Any increase in the load to be driven by the first turbine translates into a proportional increase in the drive energy fed back to the input system. In an alternative embodiment, a differential may be used to distribute the output power to a load or back to the input compressor.

Abstract: The engine includes a cylindrical rotor, set up in the interior of a stator, limited by two flat surfaces forming a first chamber to provided the admission phase and the compression phase and another chamber to provided the expansion phase (D1) and the exhaust phase. The chambers are separated by two section. The peripheral interior surface of the stator is adjusted to the rotor periphery and its extension corresponds to the gap between two pistons.

Abstract: A method for determining the ideal fuel usage value of a locomotive or other off-highway vehicle is disclosed. The time spent in each of a plurality of operating modes is determined and applied to an algorithm for calculating the ideal fuel usage associated with that operating mode. The individual values calculated for each operating mode are summed in accord with the operating modes experienced during a given train run. The sum value represents the ideal fuel usage quantity for the train run.

Abstract: An eccentric engine has been used for many different purposes, such as in a piston motor, in a steam engines in a compressor and pump. An eccentric engine include two or more cylinders (stator and rotors) located one within other. The stator has two sections (compression and expansion) and the rotor has slots and blades which are fastened at one end at a rod at a minimum of two symmetrically points about blade center. The blades can reciprocate in slots of rotor. In modification 1 the blade rod has a shape of crankshaft and rotates in opposite direction of rotor; the internal surface of stator is oval or wave formed. In modification 2 the sections of compression and expansion are located along the stator axis, and the rotor is common in both sections. The engine has two combustion chambers. In modification 3 engine has two rotors are separated by partition and connected by rotary blade rod. The rotors can have different diameters and widths.

Abstract: An engine displacement device including a casing with two internal overlapping rotor chambers, and rotors within the rotor chambers which are arranged to contra rotate to provide internal combustion and/or compression chambers. The casing provides for primary and secondary combustion of a fuel mix, where the device is adapted as a combustion engine.