Abstract: This invention of a continuous motion revolving piston engine describes a machine comprising piston(s) fitted to rings that revolve around a stator circular base which has a cavity in which a disc fits to create a closed combustion compartment together with the casing. The disc has a disc cavity to allow the piston to pass. The rotation of the disc and piston are synchronized to allow the piston to pass through the disc cavity. As there are no reciprocating parts and optionally enables an oil free operation, it is more efficient and has cleaner exhaust than existing engines.

Abstract: Embodiments of the invention provide swallowable devices, preparations and methods for delivering drugs and other therapeutic agents within the GI tract. Some embodiments provide a swallowable device such as a capsule for delivering drugs into the intestinal wall or other GI lumen. The device comprises a capsule sized to be swallowed and pass through the intestinal tract. The capsule can include at least one guide tube, one or more tissue penetrating members positioned in the guide tube, a delivery member, an actuating mechanism and a release element. The release element degrades upon exposure to various conditions in the intestine so as to release and actuate the actuating mechanism. Embodiments of the invention are particularly useful for the delivery of drugs which are poorly absorbed, tolerated and/or degraded within the GI tract.

Abstract: The present invention relates to an engine or pump called rotary piston engine or pump, comprising a shape of revolution F relative to a delta axis, and rotatably movable about said delta axis in relation to an envelope V, and n cavities distributed over the perimeter of F. In each cavity is housed a rotating roller, characterized in that at least one roller has its center angle determined so as to obtain the closed volumes it delimits, as large as possible.

Abstract: A planetary rotary type rotation device comprises a stator, a rotor, and a center sun wheel drum (10). The stator includes a hollow cylinder block (1) having a cylinder. The rotor includes a main shaft (3), planetary piston wheel fixation flanges (9), and a planetary piston wheel (8). The two planetary piston wheel fixation flanges (9) are symmetrically fixed to the main shaft (3). The center sun wheel drum (10) is disposed between the two planetary piston wheel fixation flanges (9) and fitted over the main shaft (3). An annular piston space (19) is formed between an outer circular surface of the center sun wheel drum (10) and a cylinder wall of the cylinder of the cylinder block (1). The planetary piston wheel (8) is a cylindrical roller. The cylindrical roller is disposed in the annular piston space (19) in a rolling manner. Both ends of the cylindrical roller are fixed to the planetary piston wheel fixation flanges (9).

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: 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 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: 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: 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: An internal combustion device, rotor self cooled, concentric and symmetric shape, dynamically variable compression ratio; capable of developing multiple Otto cycles per rotation, using modules, each made, mainly of a solenoid gate valve and three chambers operating at the rotor periphery. High power/weight ratio, that improves substantially, by increasing quantity of working modules, and without any drive shaft lengthening. With volumetric asymmetry ratio between chambers, combustion gasses quick exhaust and fast rise of air/fuel mix pressure peak. Proper for many types of combustion and class of fuels, including hydrogen, and efficient use of compressed air as external energy supply. Excels in aircraft use.

Abstract: A rotary engine includes pistons disposed in operating chambers of a rotary member. The pistons are guided by guiding pieces engaged in a guiding groove formed at a housing so that the operating chambers are expanded. Each of the operating chambers includes an intake/exhaust port, which is opened or closed by a shutoff valve and a shutoff plate guided along guiding grooves formed at the housing. An exhaust chamber is caved in the housing so that an explosion stroke is carried out at the rear part of the exhaust chamber, whereby a rotating force is obtained. Compressed air is supplied into the operating chambers through air-supplying channels, which are opened or closed by shutoff valves, so that gas left in the operating chambers is forcibly discharged. Consequently, introduction of lubricant through the intake/exhaust ports or leakage of pressure is prevented, and large power is obtained.

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: The rotary vane engine of this invention includes a housing and a rotor. The housing is formed by a stator and front and rear covers. The rotor comprises hollow vanes set up in an inner space of the housing. The wall of the inner space and peripheral wall of the rotor consists of two pairs of symmetric intake-compression chambers and power-exhaust chambers. The volume of the power-exhaust chamber is larger than the intake-compression chamber. An inlet is mounted in the wall of the stator in the beginning of the intake-compression chamber and an outlet is mounted in the wall of the stator in the end of said power-exhaust chamber. In the upper and lower ends of the stator, there are two symmetric cylinders, there is a combustor consisting of separated combustion chambers in the cylinders respectively. In the wall of the cylinders, there are compressed gas channels and combustion gas nozzles coupled with the inner space.

Abstract: A rotary internal combustion engine includes a housing having a separate compression chamber and power chamber formed therein with a fuel and air mixture reservoir disposed intermediate the two chambers. A plenum chamber is disposed in the housing intermediate the power chamber and the fuel and air mixture reservoir with a rotating impeller disposed therein forming a magazine which rotates synchronously with the rotors to deliver compressed volumes of fuel and air mixture into the power chamber for enhanced power delivery capabilities.

Abstract: A rotary internal combustion engine including a rotary screw compressor for receiving and compressing a mixture of air and fuel, a rotary positive displacement pump for receiving the compressed air and fuel mixture from the rotary screw compressor and pumping the mixture of compressed air and fuel therethrough, the pump having igniting means for igniting the mixture of compressed air and fuel inside of the pump, and a rotary screw expander for receiving the ignited mixture of compressed air and fuel and for expanding the volume of the ignited mixture of air and fuel therethrough.

Abstract: A rotary engine is provided with a rotary piston that is rotatively mounted within a housing. The rotary piston includes a surrounding circumferential edge that is provided with a series of distinct depressions formed therein. Formed in the housing outwardly of the rotary piston is a pair of valve housings with each valve housing including a rotary valve mounted therein. Each of the rotary valves are driven in time relationship to the rotary piston. As the rotary piston rotates within the housing, there is a series of chambers defined between respective depressions and the housing. Moreover, as the rotary piston and rotary valves rotate, they cooperate to form four separate chambers around the rotary piston, including combustion, exhaust, intake, and compression chambers. In the embodiment illustrated herein, for each revolution of the rotary piston, there are two compression, intake, exhaust and combustion cycles or phases.

Abstract: A rotary internal combustion twin engine includes matching pairs of multilobed interengaging compression rotors compressing gas and air mixtures into compression chambers defined by concavities of transfer rotors. With a 180 degree rotation of transfer rotors, compression chambers become combustion chambers containing intermittent ignition devices. Ignited and expanded gasses impel lobes of matching pairs of multilobed interengaging expansion rotors providing rotational energy and exhausting burned gasses.

Abstract: A rotary engine is provided comprising a housing (12) and a rotor (14) comprising a compression eccentric (20) and a power eccentric (22). Gases are compressed within the space formed by the housing (12), the compression eccentric (20) and a compression gate (72), after being introduced through an intake manifold (28). Gases are transferred from the compression eccentric to the power eccentric through a rotary combustion chamber (36), in which combustion of the gases is initiated by an ignition device. Expanding gases cause rotation of the rotor (14) by expanding in the space formed by the housing (12), power eccentric (22) and a power gate (66). Gases exit from the power eccentric (22) through an exhaust port (80).

Abstract: An internal combustion motor consists of three rotary units, namely a pump (A) with blades, a bladed motor (C) and a combustion space (B) which is a cylindrical chamber (7) including a rotor (8) performing a rotary motion in a sealed manner, having at least one open cavity (9) on the mantle near to its edge. An inflow port (1) of the pump (A) communicates with the ambient atmosphere through an air filter (11). The outflow port (2) communicates with the inflow port (2') of the combustion space (B). The outflow port (4') of the combustion space (B) is connected to the inflow port (4) of the motor (C), while the outflow port (5) of the motor (C) is connected through the silencer (13) with the ambient air. Progressing from the inflow port (2') to the outflow port (4') in a sense of rotation in the wall of the chamber (7) an aperture (3) is formed for injecting fuel and/or an ignition plug (14 ) is fastened therein. The central angle between the nearest points of the combustion space (B), i.e.

Abstract: An internal combustion engine includes a set of gas chambers including a compression chamber for compressing a fuel/gas mixture and a combustion and exhaust chamber for combusting the fuel/gas mixture and for exhausting the waste gases. The compression chamber and the combustion and exhaust chamber are defined by a stationary wall and a moving wall. Means are provided for sequestering a portion of the gases in the compression chamber. The sequestering means are controlled by the position of the sequestering means with respect to the wall of the compression chamber. A transfer chamber saves the sequestering gases and releases the sequested gases into the combustion and exhaust chamber at a predetermined time in the engine cycle before the gases are exhausted from the engine. The gas sequestering and transfer means can be used in a rotary engine, a linear engine, and a reciprocating engine.

Abstract: The disclosure is of an axial flow rotary internal combustion engine constructed in three sections, a compressor section, a combustion section and an expander section. The compressor section includes male and female rotors with complementary, single turn lobe and groove in which an air-fuel mixture is compressed and discharged from a port at the end of the groove as the port overtakes and traverses an arcuate intake port in the cylindrical combustion block, which is rotating at a slower speed. After the intake port is traversed and sealed off, an ignition port in the combustion chamber exposes a spark plug and the mixture is ignited. Substantially complete combustion takes place while the combustion chamber is sealed off and isolated. Then an entry port into the helical groove of female expander rotor overtakes and traverses an arcuate combustion chamber exhaust port and the combusted gases are discharged and expanded into the expander section.

Abstract: A rotary internal combustion engine is disclosed which provides a power rotor that rotates about its center on a shaft in a stator housing. The power rotor has spring-loaded sliding vanes seated in diametrically opposed radial slots thereon. The outer ends of the vanes contact the interior surface of the stator housing at all times as they sweep through an arcuate compression and expansion chamber defined therein. Adjacent the stator housing is a housing portion having a cylindrical cavity in which a rotary transfer valve rotates on a shaft. The periphery of the rotary transfer valve which has a sealing contact with the interior surface of the cylindrical cavity has generally U-shaped pockets formed on diametrically opposed portions thereof. A cam wheel assembly is keyed to the shaft of the power rotor and a follower in the form of a timing wheel is keyed to the shaft of the rotary transfer valve.

Abstract: A disc is fixedly secured to a main shaft for rotation therewith between a cover member and a housing. The disc carries four piston lugs equally disposed about its periphery and which extend radially therefrom for rotary passage through an annular action channel formed between the cover and the housing. Three radially extending combustion members are carried by the housing, equally spaced about the axis of rotation of said main shaft and so that a portion of each of said combustion members extends into said annular action channel for successive co-operation with each of said piston lugs. Each combustion member carries a cam follower which extends from its respective combustion chamber into a radial cam track formed in a cam member carried by the main shaft for rotation therewith. The rotary piston engine provides a highly efficient use of fuel with an advantegeous weight to power output ratio.

Abstract: A rotary engine, preferably operating on the 4-event Otto cycle, has a stator ring stationary on a base which also supports a shaft rotational about an axis. The stator ring has oppostie faces normal to the axis. A pair of rotor rings concentric with and mounted on the shaft abut the stator ring side faces. There are cylinders through the stator ring with their axes parallel to the shaft axis. Hollow pistons in the cylinders at their opposite ends bear against cam rings facing and complementary to each other and disposed in the rotor rings. The stator, pistons and cam rings define separate, variable volume chambers to which fuel mixture is supplied through ports in the stator ring and in the piston walls. Ignition devices fire the fuel mixture inside the hollow pistons. Exhaust is through ports in the pistons and stator ring. Lubrication and water cooling connections are provided to and from the stator ring.

Abstract: The present invention teaches a novel internal combustion engine wherein a unique structural means of transmitting combustion-generated forces and motion is incorporated. A journalled rotor assembly having combustion cavities in each of opposing faces thereof receives a combustible fluid. A main cam carried by an output shaft which is integral with the rotor assembly drives intermittent-motion cams carried on transfer shafts. Transfer plates integral with the transfer shafts and captively movable within housings rotate into and out of the combustion cavities so as to define the variable working volumes of each cavity. With each of the firings, the rotor is caused to spin in a direction opposite with respect to the relative rotational direction of the respective transfer plates.