Abstract: A seal segment includes a flapper seal, a wire mesh acting as a hinge for the flapper seal, and a spring. The flapper seal has a first surface and a second surface. The wire mesh includes a first section connected to the first surface of the flapper seal and a second section connected to the first section. The spring includes a first end that is in contact with the first section of the wire mesh to apply pressure to the first surface of the flapper seal and a second end adjacent the second section of the wire mesh.

Abstract: A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the turbine and a tip portion disposed on an inner side in the radial direction of the rotor and having a tip surface facing the outer peripheral surface of the rotor. Each of the thin plates is configured such that a width direction of the thin plate is parallel to an axial direction of the rotor at a side of the root portion, and the tip portion of each of the thin plates is configured such that an end on a side of the high-pressure space is positioned downstream of another end on a side of the low-pressure side.

Abstract: An assembly includes a plurality of seal shoes arranged about an axial centerline in an annular array. The assembly also includes a seal base and a plurality of spring elements. The seal base circumscribes the annular array of the seal shoes. A threaded base aperture extends axially through the seal base. Each of the spring elements is radially between and connects a respective one of the seal shoes with the seal base. The spring elements are formed integral with the seal base and the seal shoes as a unitary body.

Abstract: An assembly includes a monolithic carrier structure and a seal assembly. The monolithic carrier structure includes a carrier base and a support ring. The carrier base extends axially along the centerline. The support ring projects radially inward from the carrier base. The seal assembly is nested radially within the carrier base and axially next to the support ring. The seal assembly includes a seal base, a plurality of spring elements and a plurality of seal shoes arranged about the centerline in an annular array. The seal base circumscribes the annular array of the seal shoes. Each of the spring elements is radially between and connects a respective one of the seal shoes with the seal base.

Abstract: The present disclosure is directed to an aircraft power generation system including a reverse Brayton cycle system, a gas turbine engine, and a gearbox. The gas turbine engine includes a compressor section, a turbine section, and an engine shaft. The compressor section is arranged in serial flow arrangement with the turbine section. The engine shaft is rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. The reverse Brayton cycle system includes a compressor, a driveshaft, a turbine, and a first exchanger. The driveshaft is rotatable with the compressor or the turbine, and the compressor, the first heat exchanger, and the turbine are in serial flow arrangement. The gearbox is configured to receive mechanical energy from the engine shaft and transmit mechanical energy to the reverse Brayton cycle system through the driveshaft.

Abstract: A device of a turbomachine actuates a setting device to vary a flow cross-section of a flow channel of the turbomachine passable by a fluid flow. The device includes a displacement mechanism having an adjustable actuation appliance and couplable with the setting device, and a drive device for displacing the actuation appliance. The displacement mechanism has a centrifugal force appliance displaceable between a basic position and a maximally displaced working position depending on a number of revolutions of the drive device, wherein the actuation appliance is displaceable depending on the position of the centrifugal force appliance with respect to the drive device. A reset device applies a force to the centrifugal force appliance by which the centrifugal force appliance is pressed in the direction of its basic position.

Abstract: A system for controlling a variable orientation vane of a turbomachine compressor, for example a low-pressure compressor of a turbojet engine. Such a vane is also known as a variable stator vane. The system comprises a support, an orientable vane that is movable in rotation relative to the support and that comprises a lever for controlling the orientation of the orientable vane (26), and a magnetic field source that defines an air gap with the lever. When the source is powered electrically, it forms an electromagnet attracting the lever by induction such that the orientable vane changes orientation.

Abstract: There is described herein methods and systems for detecting a shaft event, such as a shaft shear, a shaft decoupling, and/or a shaft failure in a gas turbine engine. The method comprises determining a detection threshold as a set of threshold values for a spool speed of a first spool of the engine and a load transfer through a shaft of a second spool of the engine different from the first spool, the set of threshold values varying throughout a flight envelope, the detection threshold defining, for each spool speed value, at least one load transfer value beyond which a shaft event is detected. Operation values of the spool speed and the load transfer are obtained during operation of the engine, and the operation values are compared to the detection threshold. The shaft event is detected when the operation values are below the detection threshold.

Abstract: A vane device for a gas turbine having an inner shroud and an outer shroud, an aerofoil arranged between the inner shroud and the outer shroud, the aerofoil and/or inner shroud and/or an outer shroud having a first layer of MCrAlY coating over a substrate, a coated surface section which is coated with a thermal barrier coating over the first layer of MCrAlY coating, a second layer of MCrAlY coating provided between the first layer of MCrAlY and the thermal barrier coating of the coated surface section.

Abstract: A turbomachinery component for a turbomachine includes feed manifold, a return manifold and a sidewall. The feed manifold is configured to receive a coolant stream therein and includes a plurality of feed plenums. The return manifold includes a plurality of return plenums. The sidewall defines a plurality of feed channels and a plurality of return channels therein. The sidewall further includes an inner surface and an outer surface opposite the inner surface. Each feed channel is in fluid communication with at least one of the feed plenums. Each return channel is in fluid communication with at least one of the return plenums. The sidewall further at least partially defines a plurality of microchannels. Each microchannel is in fluid communication with one of the feed channels and one of the return channels.

Abstract: An apparatus and method for providing a pressurized air supply to a balance piston assembly to balance an axial load on a gas turbine engine compressor. The pressurized air supply can be supplied by mixing valve mixing a primary and secondary pressure bleed air supply relative to feedback received from the balance piston assembly to maintain a predetermined pressure at the balance piston assembly.

Abstract: An engine arrangement includes a first engine unit, a second engine unit and at least one member for fastening the second engine unit to the first engine unit. The first unit and the second unit include fluid ports for achieving a fluid flow between the first and second unit. The engine arrangement further includes a valve for opening and closing at least one of the fluid ports and the fastening member is moveably arranged relative to the first unit and second unit and is arranged to act on the valve.

Abstract: A self-powered laser system for discharging high energy light beams is disclosed. The laser system includes a laser unit, a power unit, and an exhaust system. The laser unit is capable of discharging beams in multiple directions. The exhaust system directs exhaust gasses discharged from the power unit.

Abstract: The present invention relates to an energy conversion system for converting thermal energy to mechanical energy, comprising an evaporator, an expander, a condenser, a first tank, and a second tank. The energy conversion system further comprises flow control devices for controlling flow or working fluid between the evaporator, the expander, the condenser and the tanks, and a control unit for controlling operation of the energy conversion system by controlling the flow control devices. Each of the tanks has an outlet connected to an inlet of the evaporator, and an inlet connected to the condenser as well as to an outlet of the evaporator. Hereby, some of the pressurized vapor state working fluid flowing from the outlet of the evaporator can be used for pressurizing liquid state working fluid supplied from one the tanks to the evaporator. This configuration of the energy conversion system provides for improved energy conversion efficiency.

Abstract: A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant. The system includes a modified Goswami cycle energy conversion system including a first group of heat exchangers configured to heat a first portion of a working fluid by exchange with the heated heating fluid stream and a second group of heat exchangers configured to heat a second portion of the working fluid.

Abstract: An object of the present invention is to provide a method and a system for implementing the method so as to alleviate the disadvantages of a reciprocating combustion engine and gas turbine in electric energy production. The invention is based on the idea of arranging a combustion chamber outside a gas turbine and providing compressed air to the combustion chamber in order to carry out a combustion process supplemented with high pressure steam pulses.

Abstract: An intake air cooling device includes a water supply line and a heat pump device. The water supply line sends water to a waste heat recovery boiler which generates steam using heat of an exhaust gas from a gas turbine. The heat pump device transfers heat of air suctioned by the gas turbine to water flowing through the water supply line and thereby cools the air while heating the water.

Abstract: A switching rocker arm assembly constructed in accordance to one example of the present teachings includes an outer arm, an inner arm, a bearing axle and a pivot axle. The outer arm can have a first outer side arm and a second outer side arm. The outer arm can define outer bores. The inner arm can have a first inner side arm and a second inner side arm. The inner arm can be disposed between the first and second outer side arms. The inner arm can define inner bores. The bearing axle can support a bearing. One of the bearing axle and pivot axle comprises (i) a central axle body having a central centerline, (ii) a first axle end body having a first centerline and (iii) a second axle end body having a second centerline. The central centerline is offset from at least one of the first and second centerlines.

Abstract: A switchable finger follower is provided having an inner lever with a sliding pad located between first and second inner lever ends. The sliding pad has at least one of an anti-friction coating or a surface finish of Ra 0.05 or better forming a cam contact surface. An outer lever supports the inner lever, and includes a first outer lever end mounted for pivoting movement at the first end of the inner lever by a pivot axle. A coupling pin is arranged on one of the inner or outer levers on an end opposite from the pivot axle. The coupling pin has a coupling projection with a first locking surface, and is moveable from a first, locked position with the first locking surface engaged with a second locking surface located on the other of the inner lever or the outer lever, to a second, unlocked position. A lost motion element is arranged between the inner lever and the outer lever.

Abstract: A variable valve mechanism includes a rocker arm including a first input arm, a second input arm, and an output arm, and a switch device that switches an operating state to a first state by coupling only the first input arm to the output arm, and switches the operating state to a second state by coupling only the second input arm to the output arm. The switch device includes two pins that are displaceably placed in the rocker arm and contact each other at their end faces, and a displacement device that switches the operating state to the first state by displacing a contact portion between the two pins to between the output arm and the second input arm, and switches the operating state to the second state by displacing the contact portion between the two pins to between the output arm and the first input arm.

Abstract: A valve train assembly having a valve train carrier including a body having a cartridge cavity formed in the body, a hydraulic lash adjuster adjustment (HLA) assembly, and a cartridge removably disposed in the cartridge cavity. The cartridge includes a main body defining an inner bore, wherein the HLA assembly is disposed in the inner bore, and the cartridge is sized and shaped for insertion into the cartridge cavity formed in an underside of the valve train carrier. The cartridge is configured to have a valve train lash set prior to insertion into the cartridge cavity. A rocker arm assembly includes a body configured to engage the hydraulic lash adjustment (HLA) assembly, an end having a socket formed therein, and an e-foot extending through the socket and coupled to the end, the e-foot configured to maintain substantially flat contact with a top surface of an engine valve.

Abstract: A switching hydraulic fluid gallery de-aeration arrangement for a switchable valve arrangement is disclosed. A housing for a hydraulic lash adjuster assembly is positioned in a bore of a cylinder head. The housing includes a first, hydraulic lash adjuster fluid port in a first annular groove, and a second switching hydraulic fluid port in a second annular groove. A top land and a bottom land are positioned next to the annular grooves and each have a primary outer diameter. A middle land is defined axially between the grooves. The middle land has a reduced outer diameter relative to the primary outer diameter, or the bore has an annular groove between the top and bottom lands that defines a restricted flow path between a hydraulic lash adjuster fluid gallery and a switching hydraulic fluid gallery that maintains hydraulic fluid in the switching hydraulic fluid gallery.

Abstract: A deactivating hydraulic lash adjustment (HLA) assembly includes an outer body configured to be received within a cartridge for a valve train carrier, a plunger disposed at least partially within the outer body, the plunger including a hollowed inner area, and an inner body disposed at least partially within the outer body and at least partially within the hollowed inner area. The inner body includes a low pressure chamber defined therein, and a high pressure chamber is defined between the plunger and the inner body within the hollowed inner area. The plunger is movable relative to the outer body and the inner body.

Abstract: A camshaft adjuster including a stator, a rotor and a pressure medium supply, at least one chamber being formed on the stator, which is divided into two working chambers by at least one vane formed on the rotor or rotatably fixedly connected to the rotor is provided. A pressure medium is applicable to each of the two working chambers via the pressure medium supply in such a way that a pressure of the pressure medium may be increased in each of the working chambers to the extent that the pressure increase results in a rotation of the rotor. A switchable valve is formed in the vane of the rotor, which, in a first switching position of the valve, allows a flow of the pressure medium from a first working chamber through the vane into a second working chamber, in a second switching position the valve hydraulically separating the working chambers from each other.

Abstract: A variable valve system including a crank angle sensor that measures a rotation angle of a crankshaft, a cam angle sensor that measures a rotation angle of a camshaft coupled to the crankshaft and which opens and closes valves, and a controller that controls the internal combustion engine. At least one of the crank angle sensor or the cam angle sensor is configured as an absolute angle sensor that measures an absolute rotation angle and outputs a voltage signal corresponding to this rotation angle. The controller is configured to perform a correction operation that corrects a rotation angle value calculated based on the voltage signal.

Abstract: A rocker arm includes an outer arm having a first side and a second side, an inner arm positioned between the first side and the second side of the outer arm, a pivot axle pivotally coupling the inner arm and the outer arm at a first end of each of the inner arm and the outer arm, and a latch having a first position and a second position. The latch in the first position pivotally fixes the inner arm and the outer arm at a second end of each of the inner arm and the outer arm, and in the second position allows the inner arm and the outer arm to pivot independently. The latch is responsive to hydraulic pressure in a hydraulic fluid passage to selectively move to other of the first position and the second position. A lost motion spring is coupled to the inner arm.

Abstract: A hybrid vehicle comprises an engine; a first rotary machine configured to drive the hybrid vehicle; a power transmission system configured to transmit drive force from the engine and the first rotary machine via an output unit to driven wheels; a first oil pump configured to be mechanically rotary-driven along with rotation of the output unit; a second oil pump configured to be rotary-driven by a rotary drive source that is different from the output unit; a first supply passage connected to a discharge side of the first oil pump, and the first supply passage configured to supply lubricating oil at least to the first rotary machine; a second supply passage connected to a discharge side of the second oil pump, and the second supply passage configured to supply lubricating oil at least to the first rotary machine; and an oil cooler provided to the second supply passage.

Abstract: An oil pan assembly includes a first portion formed of a first plastic, and a second portion formed of a second plastic that differs from the first plastic. The first portion is securely coupled to the second portion. The first plastic may be one of a thermoset or a thermoplastic. The second plastic may be the other of the thermoset or the thermoplastic.

Abstract: A drain bolt configured to be forcibly withdrawn from an oil tank. The drain bolt includes a fastening screw section integrally formed on one side of a head and an elastic screw section coupled to the distal end of the fastening screw section. The elastic screw section formed of a soft material has extension threads continuous to threads of the fastening screw section. The color of the elastic screw section is distinguishable from the color of the fastening screw section. The elastic screw section can be separated from a female thread portion of the oil tank due to force applied by a user or a mechanic. Even when the fastening screw section is separated from the female thread portion of the oil tank, the sealing ability between the drain bolt and the female thread portion is maintained due to the elastic screw section remaining in the meshed position.

Abstract: The invention relates to a plug (10) of the type used in threaded openings (AB) of oil pans (CT) of various vehicles. The plug (10) is made in a single piece (20), preferably of iron or other suitable material, the plug (10) having a six-sided head (21). An NPT threaded portion (23) in the shape of a truncated cone extends from the flat face (22) of the six-headed head (21) and has a base (23A) with an increased diameter (d1), the threaded portion extending along the axis (E1) with a slight taper such that the end portion (23B) has a reduced diameter (d2). The slight angle (#) formed by the threaded portion (23) provides gradual sealing points (PV) for punctually sealing damaged threaded openings (AB) of various oil pans (CT), thus preventing leakage of lubricant oil.

Abstract: Systems and methods disclosed provide an automotive fluids management and maintenance system (AFMMS) that manages and maintains fluids within vehicles by accurately and in a controlled manner directing the propulsion of these fluids into vehicle's internal components and also accurately and in a controlled manner draining fluids out of vehicle's internal components. The systems and methods enable a technician to dispense any desired fluid and pump the same into a vehicle internal component with speed, efficiency, accuracy, and in a very clean and unwasteful manner. The AFMMS is powered by a standard shop air supply. Once charged with air pressure, the AFMMS becomes mobile and is without any attachments, e.g., to a wall air supply, thus making it safe and convenient to be used around any shop environment, as well as outside in parking lots.

Abstract: An emission control system for an engine includes a user interface having an emission standards switchability button, which may initiate a plurality of control operations to effect a switch between two different emission standards applicable to operation of the engine. A controller communicatively coupled with the user interface includes a memory encoding one or more processor-executable routines and a processor configured to execute the one or more routines. The processor may turn off reductant dosing under a first set of engine operational parameters in a selective catalytic reduction (SCR) system that receives exhaust from the engine, turn on reductant dosing in the SCR system under a second set of engine operational parameters, turn power off under the first set of engine operational parameters to SCR sensors configured to generate signals indicative of operational characteristics of the SCR system, and turn power on to the SCR sensors under the second set of engine operational parameters.

Abstract: A method for controlling an exhaust after-treatment system connected to a diesel engine via a gas passage and having a diesel oxidation catalyst (DOC) and a “diesel-exhaust-fluid” (DEF) injector arranged downstream of the DOC and upstream of a selective catalytic reduction catalyst (SCR) includes detecting a flow of exhaust gas emitted by the engine into the gas passage. The method also includes detecting a level of nitrogen oxides (NOx) in the exhaust gas downstream of the SCR. The method additionally includes activating the DEF injector for a period of time to reduce the level of NOx to a predetermined NOx value. Furthermore, the method includes regulating an injection of fuel upstream of the DOC to clean the DEF injector via a stream of superheated exhaust gas if the period of time used to reduce the level of NOx to the predetermined NOx value is greater than a predetermined threshold value.

Abstract: Provided are catalyst articles, methods and systems for treating lean burn engine exhaust. Catalyst articles include selective catalytic reduction catalyst on a particulate filter. The SCR catalyst on the particulate filter provides limited NOx conversion so that unconverted NO2 is available to facilitate passive oxidation of soot trapped on the particulate filter by reaction with NO2. Systems and methods utilize such catalytic articles, and further include, e.g., a downstream selective catalytic reduction catalyst on a flow through substrate.

Abstract: A heating structure is provided. The heating structure for heating a pump installed in a tank to discharge a liquid stored in the tank to the outside of the tank comprises: a flange installed on one side of the interior of the tank, and a heating member coupled to one side of the flange and provided on one side with an accommodation groove in which at least a part of the pump is accommodated. A first discharge tube of the pump having at least a part accommodated in the accommodation groove extends toward the flange and is connected to a second discharge tube formed on the other side of the flange outside the tank. The heating member is configured to heat at least a part of the pump, the first discharge tube, and at least a part of the second discharge tube.

Abstract: An object is to provide an exhaust purification device capable of maintaining high holding power while preventing cracking in a mat during wrapping with a simple configuration. An exhaust purification device (1) includes a columnar honeycomb substrate (2), a belt-like mat (3) that includes a fibrous material and an inorganic binder and is wrapped around the honeycomb substrate (2), and a tubular casing (5) in which the honeycomb substrate (2) around which the mat (3) is wrapped is accommodated. The mat (3) includes an inner layer (31) in contact with the honeycomb substrate (2) and an outer layer (32) that is provided on the casing (5) side relative to the inner layer (31) and has a lower content of the inorganic binder than the inner layer (31).

Abstract: A thermal management system and method for a vehicle includes a cooling system having a variable cooling capacity and which is connectable to a heat-producing system of the vehicle. A control system is configured to increase the cooling capacity of the cooling system to a first predetermined level in response to the at least one input indicating an increase in the future heat load of the heat-producing system when a temperature of the cooling system is at least a predetermined temperature and the cooling system is operating below the first predetermined level. The control system is also configured to inhibit increasing the cooling capacity of the cooling system to the first predetermined level in response to the at least one input indicating an increase in the future heat load of the heat-producing system when the temperature of the cooling system is less than the predetermined temperature.

Abstract: A multi-stage exhaust turbocharger has parallel high pressure stages (30, 40) and a single low pressure stage in series. The high pressure stages (30, 40) have variable geometry turbines. The low pressure stage (60) has a divided scroll turbine wheel (62) with each scroll fed independently from the respective turbines of the high pressure stages. Valves V1, V2 determine flow paths to the respective turbines to ensure series, sequential operation.

Abstract: A charge air cooler for an internal combustion engine may include a heat exchanger having a plurality of fluid paths through which charge air to be cooled is flowable. The charge air cooler may also include a collector attached to the heat exchanger and communicating with the fluid paths. A lower region of the collector may be configured as a condensate receiving zone for receiving condensed charge air. At least one pipe body may be arranged in the collector and may delimit a fluid channel through which condensed and non-condensed charge air may be flowable. An opening may be formed in the at least one pipe body and may fluidically connect the fluid channel to the condensate receiving zone.

Abstract: Packaged boost systems and electrical assist assemblies presented. In one example, packaged boost system includes a supercharger, a brake assembly, and a transmission assembly that are packaged together in a generally axisymmetric configuration. In one example, a packaged electrical assist assembly includes a supercharger, a transmission assembly, and a brake assembly that are packaged together in a generally axisymmetric configuration.

Abstract: A turbocharger includes a compressor wheel configured to pressurize an airflow for delivery to an internal combustion engine. The turbocharger also includes a turbine wheel configured to be driven by the engine's post-combustion gases and drive the compressor wheel. The turbocharger additionally includes a waste-gate assembly. The waste-gate assembly includes a first waste-gate valve and a second waste-gate valve, wherein each of the first and second waste-gate valves is configured to selectively redirect at least a portion of the post-combustion gases away from the turbine wheel into the exhaust passage. A vehicle having an internal combustion engine operatively connected to such a turbocharger and also employing a controller configured to regulate the first and second waste-gate valves is also disclosed.

Abstract: A turbocharger turbine wastegate assembly includes a turbine housing that includes a wastegate seat and a bore; a bushing with a stepped bore that includes an axial face; a wastegate that includes a shaft, a plug and an arm, where the shaft includes an end portion, a first axial face, a journal portion, a second axial face and a shoulder portion, where the first axial face is defined at least in part by an end portion diameter and a journal portion diameter, and where the second axial face is defined at least in part by the journal portion diameter and a shoulder portion diameter; a mesh spacer disposed radially about an axial length of the end portion of the shaft between the axial face of the stepped bore of the bushing and the first axial face of the shaft; and a control arm connected to the end portion of the shaft where an axial length of the bushing is disposed between the mesh spacer and the control arm.

Abstract: A turbocharger having a variable-nozzle turbine formed by pivotable vanes supported by a nozzle ring includes an elastically deformable locator disposed between a radially outwardly facing surface of the center housing and an opposing surface of the nozzle ring. In one embodiment the locator is a metallic ring having a radially undulating waveform shape that repeats a plurality of times about a circumference of the locator. In another embodiment the locator is a metallic ring having a C-shaped cross-section in a radial-axial plane. In still another embodiment the locator is a metallic ring having an S-shaped cross-section in a radial-axial plane. In a further embodiment the locator is a plurality of circumferentially spaced, radial locator pins affixed in the center housing and received in radial slots formed in the nozzle ring, the pins restraining the nozzle ring circumferentially and axially but allowing thermal expansion of the nozzle ring.

Abstract: A centrifugal compressor for a turbocharger includes a passive inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position solely by aerodynamic forces on the mechanism. The inlet-adjustment mechanism includes a plurality of flexible vanes collectively forming a duct, and an effective diameter of the air inlet at the inducer portion of the compressor wheel is determined by a trailing edge inside diameter of the duct. The vanes are movable solely by aerodynamic forces exerted on the vanes by the air flowing to the compressor wheel. The duct has a tapering configuration when the vanes are in a relaxed state, but under aerodynamic force the vanes flex outwardly and increase the trailing edge inside diameter of the duct, thereby increasing an effective diameter of the air inlet.

Abstract: An exhaust gas turbocharger for a drive device, having a compressor that is capable of being electrically supported or driven by a media gap motor, the media gap motor having a rotor that is operatively connected to a bearing shaft of a compressor impeller of the compressor, and having a stator that surrounds the rotor at least in some regions in the circumferential direction relative to an axis of rotation of the bearing shaft. A power electronics for controlling at least one electrical winding of the stator surrounds the axis of rotation at least in some regions in the circumferential direction, a cooling jacket that stands in touch contact with the stator and/or with the power electronics being provided for cooling the stator and/or the power electronics.

Abstract: An engine system including a power plant, an intake assist device connected to an air inlet of the power plant, and an expander connected to an exhaust outlet of the power plant is presented. A motor/generator is connected to power the expander to selectively provide power to and capture power from the expander. An expander controller is connected to control the motor/generator connection to the expander, and is configured to select between a passive mode, where exhaust passively moves through the expander, and an active mode, where the motor/generator powers the expander to actively draw exhaust from the exhaust manifold. In one example, the air intake and exhaust flows are controlled independently of the rotational speed of the power plant.

Abstract: A method of controlling an air intake flow in a rotary engine having primary and secondary inlet ports, including positioning the secondary inlet port rearwardly of the primary inlet port and forwardly of the exhaust port along a direction of a revolution of the rotor, providing independently closable communications between an air source and the primary and secondary inlet ports, and controlling air intake flows between the air source and the primary and secondary inlet ports. Controlling air intake flows includes simultaneously allowing the air intake flow between the primary inlet port and the air source and between the secondary inlet port and the air source. Exhaust gases of the engine are purged with the air intake flow of the secondary inlet port. A rotary engine is also discussed.

Abstract: One of the processes needed for the conversion of a diesel engine so that it can use natural gas as fuel is the reduction of the compression ratio, since the one that the diesel engine originally has is greater than the one needed for the optimal operation with natural gas. The proposed process consists of adding cold material to the cylinder head or engine head through metallization or electric arc or plasma spraying to form a combustion chamber therein.

Abstract: The present invention is helical follower internal combustion engine. The present invention has a smooth, cylindrical follower orthogonally attached to a piston rod. The follower fits into two connected half-cylindrical, helical grooves formed by a two-piece cylindrical sleeve. The two-piece cylindrical sleeve is attached to a rotating cylindrical hub. Reciprocal motion of the piston causes rotation of the rotating cylindrical hub. The present invention has a feature that prevents the piston from rotating. The present invention can create electricity by connecting a rotor coil to the rotating cylindrical hub and placing a stator coil in near proximity. In an alternative embodiment, the present invention has an external drive shaft attached to the rotating cylindrical hub.

Abstract: A device of high-temperature solar gas turbine power generation with thermal energy storage includes a combustion chamber, a solar receiver, a thermochemical energy storage tank, a triple valve A and a triple valve B. The thermochemical energy storage tank has a high-temperature side and a low-temperature side. One outlet of the triple valve A is connected to the compressed air inlet of the solar receiver, and the other outlet is connected to the inlet of the triple valve B. One outlet of the triple valve B is connected to the low-temperature side of the thermochemical energy storage tank, and the other outlet is connected to the inlet of the combustion chamber.