| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123221000 | With transfer means intermediate single compression volume means and single expansion volume means | 21 |
| 20090250036 | Rotary Engine - A lightweight rotary engine is provided that comprises a structurally efficient, lightweight rotor housing. Disposed in the wall of the rotor housing is a combustion zone thermal barrier insert. The thermal barrier insert is comprised of a material with low thermal conductivity. The use of the insert allows the rotor housing to be constructed from higher strength material such as steel or titanium. | 10-08-2009 |
| 20100251991 | VOLUME EXPANSION ROTARY PISTON MACHINE - The inventive volume expansion rotary piston machine includes a body ( | 10-07-2010 |
| 20110114057 | Hybrid Cycle Rotary Engine - 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. The working chamber over a second angular range of the cycle expands in volume while the piston receives, from the working medium as a result of its increased pressure, a force relative to the housing that causes motion of the piston relative to the housing. | 05-19-2011 |
| 20120031369 | SEPARATE-TYPE ROTARY ENGINE - The aim of the present invention is to provide a separate-type rotary engine which significantly reduces vibrations and weight as compared to conventional cylinder-type internal combustion engines, which is simple in configuration and thus reduces manufacturing costs, which directly generates rotary force rather than through a crankshaft to increase mechanical efficiency, and in which a compressor and a force generator are separated from each other to enable the simple design of an engine suitable for a variety of uses. The engine of the present invention shown in FIG. | 02-09-2012 |
| 20140209055 | INTERNAL ORBITAL ENGINE - An orbital engine with a first outer generally tubular body with a first axis, and a second generally tubular inner orbiter body with a second axis, the second inner body being moveable within the first outer body. The first and second axes are parallel, but not colinear. The second inner body revolves, but does not rotate, within the first outer body Vanes extending generally radially relative to both the inner and outer bodies define multiple chambers in the space between the outside of the inner body and the inside of the outer body. The vanes reciprocate relative to both the inner and outer bodies, and no vane traverses the entire inner surface of the outer body. When fitted with ports in the outer body and valves, the orbital engine may be implemented as an internal combustion engine, gas compressor, liquid pump, air motor, blower, fan or turbine, etc. | 07-31-2014 |
| 123223000 | Reciprocating or oscillating compression volume means | 2 |
| 20100122684 | Split-chamber rotary engine - 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. | 05-20-2010 |
| 123224000 | Radially spaced from expansion volume means | 1 |
| 20080210194 | Orbiting Piston Machines - The casing ( | 09-04-2008 |
| 123228000 | Compression volume means circumferentially disposed relative to expansion volume means | 6 |
| 20100050981 | Rotary internal combustion engine - A non-reciprocating circular engine includes a casing, a power-compression piston and an intake-exhaust piston connected to a central hub and movable along a circular path, a power-exhaust gate and a compression-intake gate each rotatable about an axis and configured to automatically open and close according to a position of at least one of the pistons, and a compression chamber located between the gates and comprising a recession formed into the casing. The engine is configured so that, in every cycle, only the power-compression piston provides a power stroke and compresses a gas for combustion, and only the intake-exhaust piston provides for intake of gas and exhaust of combustion gases. | 03-04-2010 |
| 20100242897 | INVERSE DISPLACEMENT ASYMMETRIC ROTARY (IDAR) ENGINE - An inverse displacement asymmetric rotary engine is provided which includes a chamber. The chamber includes a stationary island having an island outer surface. The outer surface is an elongated convex shape. The island includes a crankshaft port spaced from a center of the island. The chamber includes a front-plate attached to a front surface of the island. A concave shaped movable contour is include, which is biased toward the island outer surface and which revolves about the island. A working volume is defined between an inner surface of the contour and the outer island surface. At least one front-plate engaging bearing is provided, which extends from a front surface of the movable contour and over a guide edge of the front-plate. The front-plate engaging bearing engages the guide edge during a combustion cycle. | 09-30-2010 |
| 20140360457 | IDAR-ACE INVERSE DISPLACEMENT ASYMMETRIC ROTATING ALTERNATIVE CORE ENGINE - The disclosure provides engines or pumps that includes a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The engine or pump can further include a front side plate disposed adjacent to the front surface of the first island, and a rear side plate disposed adjacent to the rear surface of the first island. The engine or pump also includes a first contour assembly disposed between the front side plate and the rear side plate. | 12-11-2014 |
| 123231000 | Vane | 1 |
| 20090025677 | COMBUSTION ENGINE OF THE IMPULSE TYPE - A combustion engine comprising a mainly cylindrical housing ( | 01-29-2009 |
| 123232000 | Interengaging rotors | 2 |
| 20080251047 | TOROIDAL ENGINE METHOD AND APPARATUS - A rotary motion device having piston valves that define an open region that are adapted to engage a power tooth of the power ring as the power ring rotates around the piston valves and the piston valves rotate about their own separate axis that is fixed with respect to the base housing of the device. The power ring is provided with radially inward and outward ports in one form that are adapted to communicate with radially inward and outward ports of a static member of the device. The ports are utilized to compress and expand a gas and in one form are utilized for an internal combustion chamber to create an internal combustion rotary motion device. | 10-16-2008 |
| 20090159040 | ENERGY TRANSFER MACHINE WITH INNER ROTOR - An energy transfer machine, for example, a positive displacement internal combustion device, has a fixed or rotating 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. Circumferentially expandable projections from the outer housing and rotor mesh with each other to define variable volume chambers. | 06-25-2009 |
| 123234000 | Compression volume means axially disposed relative to expansion volume means | 4 |
| 20100024765 | Rotary piston internal combustion engine - The invention relates to a central-axis rotary piston internal combustion engine, having a round cylindrical rotor housing ( | 02-04-2010 |
| 20100192904 | Rotating Internal Combustion Engine - The invention is an internal combustion engine converting the fuel/air mixture ( | 08-05-2010 |
| 123236000 | Vane | 1 |
| 20100251992 | Radial pulsed rotary internal combustion engine - A radial pulsed rotary engine a rotor mounted for rotation between two parallel circular discs and creates pulsed focused fuel/air mixture ignitions sequentially within many wedge shaped chambers of a flat circular rotor. The rotor has a number of wedge shaped chambers that are defined by a number of rotor partitions that extend from positions near the center of the rotor to positions at or near the outer periphery of the rotor and are sequentially in communication with a fuel/air supply, defined by one of the disks, and an outer peripheral portion that is sequentially in communication with exhaust discharge openings that are defined by a housing within which the rotor is positioned. Spark plugs are mounted to the housing and fire sequentially in response to the position of the rotor within the housing. | 10-07-2010 |
| 123238000 | Interengaging rotors | 1 |
| 20080276902 | Rotary Piston Machine Comprising Two Piston Mounts Arranged on an Axle - The object of the invention of developing a rotary piston machine, which is to be embodied as a prime mover or as a work machine consisting of two piston mounts rotatably mounted on an axle and being capable of performing a relative movement, wherein they are connected to a straight-line thrust crank mechanism, which serves to generate a relative movement, which causes a conversion of a uniform movement into an non-uniform straight-line movement of the piston mount, was solved in that a center axle of each piston liner stands at right angles on a diameter of a piston mount and in that each piston mount comprising elliptical gearwheels, which are turned relative to one another by 90° and the gearwheels, as mating gears being turned relative thereto by 90°, are fixedly connected to an output, wherein they are rotatably mounted on the axle in the point of intersection of the smallest and of the greatest diameter, on the one hand, and are connected to the output shaft on the other hand, and the working pistons in the piston liners of the one piston mount are connected to the other piston mount via hinged levers and the working pistons in the piston liners of the other piston mount are connected to the first piston mount via hinged levers. | 11-13-2008 |
| 123239000 | Compression volume means radially disposed relative to expansion volume means | 4 |
| 20080202466 | Rotary internal combustion engine and rotary compressor - The rotary internal combustion engine is a rotary internal combustion engine that uses the unique combination of multiple rotors on a vertical axis with piston vanes, which are intersected by horizontally oriented valve rings so that rotating rotors intersect gaps on the rotating valve rings, thus creating the intake compression and power and exhaust cycles on this internal combustion engine. The unique design allows the motor to operation as either a motor or pump. High volume of compressed air virtually eliminates the need for a storage tank. These engines are an elegant solution that fulfills the century long quest for quiet, clean, highly efficient rotary power. When available, the demand for the benefits of rotary piston power in air, surface, and marine applications, will be immediate and rewarding. | 08-28-2008 |
| 20090120407 | Internal combustion engine with toroidal cylinders - The instant invention provides a torodial internal combustion engine with lengthened pistons that move through three perpendicularly intersecting torodial cylinders. The engine includes one central power ring and a pair of charge rings which intersect opposite quadrants of the power ring at right angles to supply a fuel/air mixture to the power ring for combustion. The charge rotors are connected to the power rotor, through a gear-train, so that all of the rotors rotate at the same rate. The fuel/air mixture is combusted within a combustion chamber formed entirely within the power ring. | 05-14-2009 |
| 20160131027 | ROTARY ENGINE HAVING TWO ROTORS WITH INTERSECTING PATHWAYS - An engine including a block that has first and second intersecting pathways, and first and second rotors positioned within the first and second pathways, respectively. The first and second rotors are moveable within the first and second pathways, respectively, between first and second combustion positions. A first combustion chamber is formed within the first pathway between the first and second rotors when they are in the first combustion position, and a second combustion chamber is formed within the second pathway between the first and second rotors when they are in the second combustion position. The pathways and rotors are preferably torus shaped, and the rotors preferably have concave leading and trailing ends. The engine block preferably has a single intake for both of the first and second combustion chambers. Recesses are preferably formed in the block to receive seals that engage the rotors. | 05-12-2016 |
| 123240000 | Concentric | 1 |
| 20080196688 | Internal Combustion Engine - An engine with expansion piston located on the end of a motion arm connected to the engine shaft. On the shaft, rotating compression pistons are mounted. The distance between the two piston types allows for the production of great torque. The geometry of expansion chamber and compression chamber is concentric toroidal. A pressure chamber stores the air-fuel mixture coming from the compression chamber to the expansion chamber and is therefore interposed between the two. The timing of the two or more sliding ports attached to the compression chambers determines the compression volume, while the valves control the communication of the pressure chamber with the other chambers. | 08-21-2008 |
