Abstract: In one example, a system is provided, comprising an exhaust reductant injector upstream of a mixer. The mixer includes a plurality of concentrically smaller rings interconnected via fins having a width varying in a flow direction, the fins arranged annularly, and with a first set of fins between a first pair of adjacent rings angularly offset from a second set of fins between a second pair of adjacent rings, the first and second pairs of rings sharing one common ring. In this way, it is possible to atomize, redirect, and mix the exhaust flow over a short distance to effectively react with NOx in a downstream SCR catalyst.

Abstract: The invention relates to an exhaust system (10) for an internal combustion engine, having an exhaust gas path which, at least in sections, has two parallel exhaust ducts (30, 32), specifically a main duct (30) and a secondary duct (32), wherein a HC adsorber (42) for the reversible adsorption of unburned hydrocarbons (HC) is provided in the secondary duct (32); having a setting means (46) for selectively conducting an exhaust gas flow into the main duct (30) and/or into the secondary duct (32), and having a main catalytic converter (40) arranged downstream of the parallel exhaust ducts (30, 32). It is intended that a catalytic exhaust gas converter (44) for converting at least one exhaust gas component is provided in the main duct (30) of the parallel exhaust ducts (30, 32).

Abstract: A motor vehicle combustion engine includes an air supply section and an exhaust gas recirculation section that includes a particle filter and an SCR exhaust gas purification component. A first exhaust gas turbocharger includes a turbine arranged upstream of the particle filter in the exhaust gas section. A first exhaust gas recirculation line, which diverges from the exhaust gas section upstream of the turbine of the first exhaust gas turbocharger, and a second exhaust gas recirculation line, which diverges from the exhaust gas section downstream of the particle filter are provided to recirculate the exhaust gas from the exhaust gas section into the air supply system. An SCR catalyst is arranged in the second exhaust gas recirculation line.

Abstract: A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.

Abstract: A hydraulic system includes one or more hydraulic pumps, one or more hydraulic motors, a hydraulic tank, and fluid lines. The hydraulic system also includes one or more check valves fluidly connected to the hydraulic pumps and the hydraulic motors. The hydraulic system also includes one or more pilot-operated valves, operably coupled to the check valves by one or more pilot lines. The pilot-operated valves are configured to receive fluid pressure from the fluid lines, opening to allow hydraulic fluid to travel between fluid lines.

Abstract: In various embodiments, energy-storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred atmospheres to atmospheric pressure. The systems may be sized and operated at a rate that allows for near isothermal expansion and compression of the gas.

Abstract: An apparatus comprises an expander comprising a member moveable within a chamber in response to an expanding gas. A linkage is in communication with the member and configured to transmit out of the chamber, a power of the expanding gas. An element effects gas-liquid heat exchange with the expanding gas. The apparatus is configurable in a first mode of operation in which the member moves in response to the expanding gas as a result of combustion within the chamber, and in a second mode of operation in which the member moves in response to the expanding gas in an absence of combustion within the chamber. Also disclosed is a turbomachine where working fluid and plenum are rotated together, reducing losses from velocity shear. Further disclosed is a turbine comprising a nozzle on a rotatable member, where linear velocity of expanding gas from the nozzle substantially matches member rotational velocity.

Abstract: An energy recycling system is disclosed. When a construction apparatus performs a combined operation of a boom down operation and an arm out operation, hydraulic energy returned in the boom down operation is recycled for the arm out operation by the energy recycling system.

Abstract: A wave-energy converter (WEC) designed to capture the predominantly horizontal (surge) water motion in near-shore waves is called a Surge-type WEC. A Surge-type WEC comprises a moveable paddle that faces and resists the wave motion, in a way that converts the energy of the wave motion into a more useful form, such as electricity. The challenge addressed by the present invention is the efficient capture of the energy contained in the entire water column, from the seabed to the surface. This is a challenge because the height of the water column (depth) varies both within waves and with the tide. Capture of the full water column is accomplished using a floating paddle. The top of the paddle is pinned to the water surface by buoyancy. The lower portion of the water column is captured differently in different embodiments.

Abstract: A power plant includes a heated fluid, a closed loop, super-critical carbon dioxide-based Brayton cycle, and a closed loop, steam-based Rankine cycle. At least one heat exchanger is arranged to receive the heated fluid and exchange heat between the heated fluid, the closed loop super-critical carbon dioxide-based Brayton cycle and the closed loop, steam-based Rankine cycle.

Abstract: A motor having hot working fluid having a continuously powered compression element; a constantly driving expansion element associated with at least two pairs of working chambers, each one of which comprises a cold chamber and a hot chamber connected to a hot source and isolated from the hot source by a delay system; and a linking and communication element that interacts with the compression element, the expansion element and the pairs of working chambers such that the motor continuously operates essentially according to a cycle comprising a powered compression phase, subdivided into an isothermal sub-phase and a sub-phase of raising the temperature, and a driving phase.

Abstract: Printed active origami combines printed electronics with nanomaterial coated polymer based actuators to create active printed structures. The fabrication processes include the step of applying carbon nanomaterial coatings to polymeric films. Products produced by the processes include actuating materials, such as solid state actuators that can be used as active element(s) in a printable active origami robot.

Abstract: A brake booster includes an input element actuatable by a driver, an actuator for generating a support force, an output element to which an input or support force may be applied and via which an actuating force may be applied to a piston of a brake master cylinder, and a force transmission unit having elastic properties, situated between the input element and the actuator, and the output element, and transmitting the input and/or support forces to the output element. An air gap, which in idle mode is smaller or larger than a desired air gap, is provided between the input element and the force transmission unit. A method for operating the brake booster includes generating a support force prior to a braking intent to be anticipated or immediately after detection of a braking intent, in a time span before or immediately after detection of an actuation of the input element.

Abstract: A master cylinder device includes a housing whose front side end is closed and which includes a third housing member separating an interior of the housing into a front side chamber and a rear side chamber and having an opening through the third housing member, a first pressurizing piston which includes a main body portion disposed in the front side chamber and which is moved forward by receiving a force for pressurizing the brake fluid to be supplied to a brake devices, and an input piston. In the master cylinder device, an input chamber into which a brake fluid is introduced is defined between a rear end of the main body portion of the first pressurizing piston and the third housing member. The input piston is fitted in the housing with seals, whereby, an inter-piston chamber across which the input piston and the pressure receiving piston face to each other.

Abstract: A turbocharger cartridge and engine cylinder head assembly includes a turbocharger cartridge having a center housing defining a bore therethrough, bearings housed in the bore, a shaft rotatably supported in the bearings, a compressor wheel affixed to one end of the shaft, and a turbine wheel affixed to an opposite end of the shaft. The engine cylinder head defines a receptacle in which the turbocharger cartridge is disposed. The cartridge defines a cartridge oil circuit and the engine cylinder head defines an engine oil circuit. An oil circuit connector plug is removably installed in a socket in the head, the plug defining a connector passage that mates up with an oil supply conduit in the engine cylinder head and with an oil supply passage in the center housing such that oil is conducted from the oil supply conduit through the connector passage to the bore.

Abstract: A turbocharger for an internal combustion engine includes an oil-lubricated bearing, a feed line for the oil and a throughflow limiter for the oil.

Abstract: A multi-stage supercharging apparatus including a first supercharger and a second supercharger. The first supercharger is provided with a first turbine accommodating section, a first exhaust inlet, and a first exhaust outlet which extends in an axial direction of the first turbine from the first turbine accommodating section and is bent upward. The second supercharger is provided with a second turbine, a second turbine accommodating section, and a second exhaust inlet which is directly connected to the first exhaust outlet to allow the first exhaust outlet to be communicated with the second turbine accommodating section, and the second supercharger is supported by the first supercharger by placing an opening of the second exhaust inlet on an opening of the first exhaust outlet.

Abstract: A turbocharger apparatus of an engine may include a turbine installed to generate a rotating force from an exhaust gas flow of the engine, a compressor selectively coupled to the turbine to be rotated for compressing air which is to be supplied into an engine combustion chamber of the engine, a shaft installed to transfer the rotating force of the turbine to the compressor, a clutch installed to the shaft to control the transfer of the rotating force between the turbine and the compressor, a planetary gear unit connected to the compressor, and a motor generator mounted onto the shaft and coupled to the planetary gear unit to receive the rotating force of the compressor through the planetary gear set.

Abstract: In accordance with exemplary embodiments, a Stirling engine is integrated into an exhaust system of a vehicle. The system comprises an engine coupled to a cooling system and an exhaust system. An emission control system is coupled to the exhaust system. A Stirling engine has one end coupled to the cooling system and another end selectively coupled to the exhaust system between the engine and the emission control system, and configured be driven from heat extracted from exhaust gas flow. The Stirling engine drives an electrical energy generator that provides electrical energy for storage in an energy storage system.

Abstract: The present invention relates to an indirectly heated gas turbine system comprising a combustion chamber (3) that extends along a central axis of the gas turbine system for the combustion of compressed air and supplied fuel whereby flue gas is formed, a turbine (2) driven by a working medium, a compressor (1) rotatably connected to the turbine for compressing the working medium and/or air to the combustion chamber, and a first heat exchanger device (8) for the transfer of heat between the flue gas and the working medium. The first heat exchanger device and the combustion chamber are integrally formed as a monolithic unit, the first heat exchanger device being substantially arranged within the axial extension of the combustion chamber along the central axis. By the integrated design of the combustion chamber and the first heat exchanger device, a compact, indirectly heated gas turbine system having high efficiency is achieved.

Abstract: A method of retrofitting a power generation system includes modifying a pre-existing power generation system that includes a combustor and a steam-based cycle to include a super-critical carbon dioxide-based Brayton cycle that is directly coupled through the combustor. The steam-based cycle is converted into a steam-based Rankine cycle that is in thermal-receiving communication with the super-critical carbon dioxide-based Brayton cycle.

Abstract: A combined cycle power plant with a gas turbine, steam turbine, and first HRSG comprises a CO2 capture plant for the at least partial capture of CO2 from the exhaust gases from the gas turbine. It comprises in particular a second HRSG or boiler arranged to receive a portion of the exhaust gases and transfer its heat to steam and feedwater. Steam generated in the second HRSG or boiler is used for the operation of the CO2 capture plant and/or to operate a steam turbine that drives a generator and optionally a CO2 compressor. The power plant according to the invention allows for greater flexibility in power plant part load control and power plant efficiency. A method to operate the power plant is also claimed.

Abstract: A combined power and water production system includes a steam generator, a water production facility, and a heater to heat water and to provide the heated water to the steam generator to generate steam.

Abstract: A micro-turbine engine has been designed using vertically simple geometry, such that the engine components are designed with features that are defined geometrically, but not necessarily manufactured, by extruding two-dimensional features along a primary direction. This design approach reduces manufacturing and assembly costs. The present invention discloses designs to improve micro-turbine engine performance, and methods of manufacturing components that further reduce cost. The design improvements include methods of implementing a multi-stage micro-turbine engine using nested stages and nested flow paths, usage of multi-phase fuel injectors and supercritical fuel injectors to increase fuel flexibility and burner efficiency, and method of cooling a turbine rotor by building cooling blades on the opposite side of the rotor that act as a fluid pump to provide cooling by convection.

Abstract: A system for recirculating a vented fuel to a fuel delivery system of a gas turbine generally includes a vented fuel conduit in fluid communication with the fuel delivery system and a container in fluid communication with the vented fuel conduit. A pump is disposed downstream from the container and a fuel conduit is disposed downstream from the pump. The fuel conduit may provide fluid communication from the pump to the fuel delivery system.

Abstract: Present embodiments are directed toward reducing low flow or no flow situations in a head end of a turbine combustor. Embodiments include a system having a turbine combustor. The turbine combustor includes a fuel nozzle having an inner shell and an outer shell, and a feed cap disposed about the fuel nozzle and having an outer wall and a back plate. The back plate joins respective upstream ends of the outer shell of the fuel nozzle and the outer wall of the feed cap. The turbine combustor is configured to flow a first pressurized air via an air path extending along the outer wall of the feed cap, the back plate of the feed cap, and into the fuel nozzle.

Abstract: A micromixer assembly of a turbine system includes a plate having at least one aperture comprising a receiving diameter. Also included is at least one tube having an inlet and an outlet for receiving a flow and dispersing the flow to a combustor, wherein the at least one tube includes an inner diameter and an outer diameter, wherein the outer diameter is configured to fit within the receiving diameter of the at least one aperture, wherein the at least one tube is operably coupled at a location on the outer diameter to the receiving diameter of the at least one aperture by exerting a radial force on the inner diameter of the tube.

Abstract: A gas-turbine burner having a plurality of main swirl generators which each have an inlet flow opening formed by the main swirl generator edge is provided. In order to achieve a uniform flow of combustion air through the main swirl generator, the gas-turbine burner has an inlet-flow guide means with a flow guide surface which runs from one of the inlet-flow openings to an adjacent inlet-flow opening, to which the main swirl generator edges which form the inlet-flow openings are connected, and the flow guide surface widens from there radially upwards. The main swirl generators are central-symmetrically arranged around a pilot burner and the flow guide surface runs radially outside the main swirl generators.

Abstract: A combustion system for a gas turbine includes a combustion chamber with a wall section separating an outside of the combustion chamber from an inside of the combustion chamber. The wall section has a passage for injecting a combustion medium into the combustion chamber. The combustion system further includes a resonator with a neck section and a resonator chamber, wherein the neck section and the resonator chamber form a resonator volume reducing vibrations within the combustion chamber. The resonator chamber has a first inlet for injecting gaseous medium into the resonator chamber and a second inlet for injecting fuel into the resonator chamber such that a fuel/gas mixture is generated inside the resonator chamber. The neck section is connected from the outside of the combustion chamber to the passage of the wall section such that the combustion medium comprising the fuel/gas mixture is injectable into the combustion chamber.

Abstract: A substrate having one or more shaped effusion cooling holes formed therein. Each shaped cooling hole has a bore angled relative to an exit surface of the combustor liner. One end of the bore is an inlet formed in an inlet surface of the combustor liner. The other end of the bore is an outlet formed in the exit surface of the combustor liner. The outlet has a shaped portion that expands in only one dimension. Also methods for making the shaped cooling holes.

Abstract: The present invention provides a system and method that yields an exhaust stream that includes a relatively high concentration of a desirable gas and is also substantially oxygen-free. This desirable gas includes, but is not limited to: Carbon Dioxide (CO2), Nitrogen (N2), or Argon. The present invention also provides a way to control the physical property of the exhaust stream.

Abstract: Embodiments of the present invention provide a S-EGR process that yields an exhaust stream that includes a relatively high concentration of a desirable gas and is also substantially oxygen-free. This desirable gas includes, but is not limited to: Carbon Dioxide (CO2), Nitrogen (N2), or Argon.

Abstract: Embodiments of the present invention provide to a cooling and sealing air system for reheat gas turbine powerplant operating in a configuration that includes stoichiometric exhaust gas recirculation configuration. A user may have the flexibility in determining where the cooling and sealing flow derives. This may include and enhanced oil recovery system, a concentrated carbon system, etc.

Abstract: A method of controlling a power plant that includes a working fluid and a recirculation loop, wherein the power plant includes a combustion system having an upstream combustor operably connected to a high-pressure turbine and a downstream combustor operably connected to a low-pressure turbine. The method includes: recirculating the working fluid through the recirculation loop; controlling a compressed oxidant amount supplied to the upstream combustor and the downstream combustor; controlling a fuel amount supplied to the upstream combustor and the downstream combustor; controlling the power plant such that each of the upstream combustor and the downstream combustor periodically operates at a preferred stoichiometric ratio; and selectively extracting the working fluid from a first extraction point associated with the upstream combustor and a second extraction point associated with the downstream combustor based upon which combustors operates at the preferred stoichiometric ratio.

Abstract: A gas turbine combustor includes a combustor liner enclosing a combustion chamber; at least one fuel nozzle arranged to provide fuel to the combustion chamber; a flow sleeve surrounding the combustor liner forming a passage radially between the combustor liner and the flow sleeve for supplying air to the combustion chamber, the flow sleeve configured to permit air to flow substantially axially into the passage via a substantially annular flow sleeve inlet. A downstream end of the flow sleeve is formed to include an annular manifold provided with plural outlets about a circumference of the downstream end of the flow sleeve and adapted to supply supplemental air from an external variable air source substantially radially into the passage to thereby maintain axial air flow boundary layer attachment at the flow sleeve inlet.

Abstract: The present invention provides a system and method of operating a combined-cycle powerplant at part-load without shutting down an HRSG and steam turbine. The present invention may apply to a powerplant operating in an open-cycle mode. The present invention may also apply to a powerplant operating in a closed-cycle mode.

Abstract: A method of controlling a power plant that includes a working fluid, wherein the power plant includes a combustion system having an upstream combustor operably connected to a high-pressure turbine and a downstream combustor operably connected to a low-pressure turbine. The method may include the steps of: supplying compressed oxidant to at least one of the upstream and the downstream combustor; supplying a fuel to at least one of the upstream and the downstream combustor; combusting the fuel with the compressed; recirculating the working fluid; controlling the power plant such that one of the upstream and the downstream combustors operates at a preferred stoichiometric ratio; and extracting the working fluid from an extraction point positioned relative to the whichever of the upstream combustor and the downstream combustor operates at the preferred stoichiometric ratio.

Abstract: A method of controlling a power plant that comprises a working fluid and a recirculation loop, wherein the power plant includes a combustor operably connected to a turbine, the method including the steps of: recirculating at least a portion of the working fluid through the recirculation loop; controlling the power plant such that the combustor at least periodically operates at a preferred stoichiometric ratio; and extracting the working fluid from at least one of a first extraction point and a second extraction point positioned on the recirculation loop during the periods when the combustor operates at the preferred stoichiometric ratio.

Abstract: Simple, robust and systematic solutions are provided for controlling counter-rotating open-rotor (CROR) gas turbine engines. The solutions mathematically decouple the two counter rotating rotors of a CROR engine by model-based dynamic inversion, which allows application of single-input-single-output (SISO) control concepts. The current solutions allow fuel flow to be treated as a known disturbance and rejected from the rotor speeds control. Furthermore, the current control solutions allow a simple and well-coordinated speed phase synchronizing among the four rotors on a two-engine vehicle.

Abstract: Embodiments can provide systems and methods for detecting fuel leaks in gas turbine engines. According to one embodiment, there is disclosed a method for detecting a fuel leak in a gas turbine engine. The method may include adjusting a control valve to correspond with a desired fuel flow. The method may also include determining an actual fuel flow based at least in part on an upstream pressure in a fuel manifold and one or more gas turbine engine parameters. The method may also include comparing the desired fuel flow with the actual fuel flow. Moreover, the method may include determining a difference between the desired fuel flow and the actual fuel flow, wherein the difference indicates a fuel leak.

Abstract: An assembly or system is provided for selectively regulating journal bearing lubrication between at least first and second levels in an aircraft engine. A high pressure pump includes movable portions at least in part supported by a journal bearing. A selector valve is configured to selectively supply lubrication flow to the journal bearing. In addition, a relief valve is configured to receive a signal from the selector valve defining a pressure level at which the relief valve should relieve pressure.

Abstract: Louver systems for gas turbine bleed air systems are disclosed. An example louver system may include a bleed system discharge opening arranged to vent bleed air from a bleed flow conduit and a plurality of pivotable louvers disposed proximate the discharge opening, the pivotable louvers being pivotable between a shut position and an open position. In the shut position, individual louvers may at least partially obstruct the discharge opening. In the open position, individual louvers may at least partially control a direction of flow of the bleed air exiting the discharge opening.

Abstract: An apparatus for refrigeration and heating of bulk fluid, and particularly, but not exclusively, to the refrigeration of bulk milk freshly obtained from dairy animals such as cows. The apparatus is provided with a refrigerated bulk milk tank and magnetic refrigeration unit for refrigerating and heating, as appropriate, the fluid stored in said tank. The fluid stored in the tank is one of (i) milk, (ii) milk and one or more fermenting agents, (iii) a cleaning fluid, (iv) water, and (v) air. Normally, the fluid stored in the tank is milk.

Abstract: A thermal plate for a substrate support assembly in a semiconductor plasma processing apparatus, includes multiple independently controllable planar thermal zones arranged in a scalable multiplexing layout, and electronics to independently control and power the planar heater zones. Each planar thermal zone uses at least one Peltier device as a thermoelectric element. A substrate support assembly in which the thermal plate is incorporated has an electrostatic clamping electrode layer and a temperature controlled base plate. Methods for manufacturing the thermal plate include bonding together ceramic or polymer sheets having planar thermal zones, positive, negative and common lines and vias.

Abstract: The present invention relates to a thermochemical system comprising a reactor, or an enclosure for storing a solid reactive material capable of absorbing a gas, the reactive material and the gas being such that, when placed together, a chemical reaction occurs which results in the gas being absorbed by the reactive material, and a reverse chemical reaction occurs, wherein the gas absorbed by the reactive material is desorbed when heating means are applied to said reactive material when the latter has absorbed the gas. Said thermochemical system is characterized in that the reactor consists of an outer housing which is made of a composite material and which contains a sealed inner housing containing the reactive material, the heating means being arranged between the two enclosures.

Abstract: An object of the present invention is to maintain a heating amount constant when a compressor is heated at the time of shutdown of the compressor, regardless of the influences of production tolerance and environment variations. An inverter control unit causes an inverter to generate a high-frequency AC voltage having a de-energized section in which a voltage applied from the inverter to a motor is zero between a section in which the voltage is positive and a section in which the voltage is negative. At this time, the inverter control unit detects a value of a current flowing to the inverter in a detection section residing from immediately before a start of the de-energized section to immediately after an end of the de-energized section, and causes the inverter to generate a high-frequency AC voltage adjusted according to the detected current value.

Abstract: A method for manufacturing a spherical frozen food is provided. One or more plates are provided. The plates, when together, form a spherical mold. An inlet facilitates the injection of a mixture into the mold. The mold is subjected to a low temperature such that the mixture is caused to freeze. A rotating mechanism may cause one or more of the plates to open and/or rotate outwardly such that the frozen material may be removed from the mold with ease. Liquid nitrogen may be used to freeze the material.

Abstract: This invention includes embodiments which disclose a system for the disposal and or combustion of waste oil for use in a chiller operatively connected to one or more evaporators, the system providing for the collection, storage and/or treatment and dispensation of potable or drinkable water.

Abstract: The present invention envisages a hybrid absorption-compression chiller comprising: a vapor-compression system providing refrigeration effect in a primary evaporator (102a) by extracting heat from a medium to be cooled in a condensed primary refrigerant, and a vapor-absorption system in operative communication with the vapor-compression system for receiving primary refrigerant vapors via a compressor (104a), these vapors are cooled by a condensed secondary refrigerant in a secondary evaporator (106a) to provide cold condensed primary refrigerant which is recycled to the vapor-compression system. The hybrid absorption-compression chiller of the present invention is energy-efficient and provides a higher COP in comparison with the conventional chillers.

Abstract: A method for controlling an aircraft air conditioning system includes the steps of detecting an operating state of an air conditioning unit of the aircraft air conditioning system and controlling the temperature of a process air mass flow supplied to the air conditioning unit in dependence on the operating state of the air conditioning unit.