Abstract: A filter cartridge assembly includes a first filter including a first cavity defined therein and a second filter coupled to the first filter. The second filter includes a second cavity defined therein in flow communication with first cavity. The filter cartridge assembly also includes at least one pre-filter extending about the first filter and the second filter such that a third cavity is defined between the at least one pre-filter and at least one of the first filter and the second filter.

Abstract: A method of varying a fan duct throat area of a gas turbine engine may include non-pivotably moving a fan nozzle outwardly relative to a longitudinal axis of the gas turbine engine during axially aft translation of the fan nozzle without activating a thrust reverser.

Abstract: A method of varying a fan duct nozzle throat area of a gas turbine engine includes pivoting a fan nozzle outwardly relative to a longitudinal axis of the gas turbine engine. The fan nozzle is configured to move axially non-contemporaneously with the pivoting of the fan nozzle.

Abstract: A turbofan engine includes a fan driven by a low pressure turbine through a gear reduction. The gear reduction has a gear ratio of greater than or equal to about 2.4. The low pressure turbine has an expansion ratio greater than or equal to about 5. The fan has a bypass ratio greater than or equal to about 8. In other features, a turbofan engine includes a variable geometry fan exit guide vane (FEGV) system having a multiple of circumferentially spaced radially extending fan exit guide vanes. Rotation of the fan exit guide vanes between a nominal position and a rotated position selectively changes a fan bypass flow path to permit efficient operation at various flight conditions.

Abstract: A gas turbine engine includes a controller that controls a fan blade flutter characteristic through control of a variable area fan nozzle.

Abstract: A method to operate an internal combustion engine with a diesel particulate filter to extend the life of the diesel particulate filter by initiating active regeneration of the diesel particulate filter when the soot load of the filter exceeds a predetermined actual soot load value.

Abstract: A vehicle has an exhaust aftertreatment system including an LNT. The vehicle operates through a series of ignition cycles, deNOX cycles, and deSOX cycles. DeNOX operations begin when the LNT reaches a loading threshold. The applicable threshold depends on operating conditions, such as mean LNT temperature and mean exhaust flow rate. The thresholds are adapted based on NOX removal efficiency data. The data is compared to target values. The target values depend on the operating condition range, but remain fixed while the thresholds are adapted. NOX removal efficiency is measured over intervals corresponding to entire deNOX cycles. The data is sorted into bins according to operating conditions. The adaptations are only made if a bin has several data points accumulated over a minimum interval that is at least one ignition or deSOX cycle, preferably several. The method provides stable adaptations that compensate for aging.

Abstract: An apparatus for treating exhaust includes a housing having an inlet and an outlet, the housing defining a chamber. The inlet is in fluid communication with a source of exhaust. A mixing tube is connected to the inlet. The mixing tube has at least two branches and a plurality of apertures defined in a wall of the mixing tube. A substrate is disposed between the mixing tube and the outlet. The at least two branches converge at an end section of the mixing tube to form a mixing loop.

Abstract: It is possible to provide a device and a method for combusting particulate substances which particulate matters discharged from an internal combustion engine can be effectively combusted, and the device configuration is simple and does not become large and heavy.

Abstract: A method for predicting a NOx amount may include detecting an O2 amount in an intake air, calculating a reference O2 amount in the intake air according to a driving condition of an engine, calculating a reference NOx amount contained in an exhaust gas according to the driving condition of the engine, and primarily correcting the reference NOx amount based on the detected O2 amount in the intake air and the reference O2 amount in the intake air according to the driving condition of the engine.

Abstract: Inside an engine exhaust passage, in order from the upstream side, a hydrocarbon feed valve, oxidation catalyst, and exhaust purification catalyst are arranged. A first NOx purification method which lowers the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst by a predetermined period while maintaining it lean so as to remove NOx without causing NOx to be stored in the form of nitrates and a second NOx purification method which switches the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst from lean to rich by a period longer than the above period so as to remove NOx are selectively used in accordance with an operating state of the engine.

Abstract: An exhaust emission control device includes a NOx purification catalyst, a three-way catalyst provided upstream of the NOx purification catalyst, a first air-fuel ratio sensor provided upstream of the three-way catalyst, a second air-fuel ratio provided downstream of the NOx purification catalyst, a rich spike unit for changing an exhaust gas air-fuel ratio from lean to rich for a predetermined period to reduce and purify NOx adsorbed by the NOx purification catalyst, a first detection unit for detecting a NOx adsorption amount and an oxygen storage amount of the three-way catalyst and the NOx purification catalyst during rich spike, a second detection unit for detecting the oxygen storage amount of the three-way catalyst and the NOx purification catalyst until the output of the second air-fuel sensor becomes lean after the rich spike, and a deterioration determination unit for determining deterioration of the NOx purification catalyst based on a detected value of the first detection unit and that of the seco

Abstract: A method for predicting a NOx amount, may include determining a reference NOx amount according to a driving condition of an engine, primarily correcting the reference NOx amount according to an exhaust gas recirculation (EGR) ratio, and secondarily correcting the primarily corrected NOx amount according to an environmental factor and the driving condition.

Abstract: Catalyzed soot filters comprising a wall flow monolith having porous walls, a first washcoat permeating the porous walls and a second washcoat on the porous walls are disclosed. Methods of manufacturing catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed.

Abstract: Diesel oxidation catalysts, catalytic articles, methods of making catalytic articles, emissions treatment systems and methods of treating an exhaust gas stream using the catalytic articles for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) are described. Specific catalytic articles comprising a substrate with a first washcoat layer comprising greater than or equal to about 2% by weight palladium dispersed on a cerin support and a second washcoat layer comprising a platinum group metal and a refractory metal oxide are described.

Abstract: Disclosed is a catalytic unit that removes contaminates and particulates, including nitrogen oxides and soot, from diesel engine emissions without the use of chemical agents. The disclosed apparatus comprises a flow through device in fluid communication with a reduction unit, which is in fluid communication with a diesel particulate filter. The flow through device is coated with hematite and bixbyite in a ratio ranging from 1:1 to 9:1. The reduction unit is a catalytic substrate comprising one or more transition metals supported on a molecular sieve coated with an oxide catalyst. The diesel particulate filter has an oxide coating and a noble metal coating. The flow through device converts nitric oxide into nitrogen dioxide. The reduction unit converts most of the nitrogen dioxide into nitrogen, water, carbon monoxide and carbon dioxide. The diesel particulate filter traps remaining soot and coverts it and the carbon monoxide into carbon dioxide.

Abstract: An exhaust gas post processing system may include an exhaust line for an exhaust gas exhausted from an engine to pass, a gasoline particulate filter that is disposed on the exhaust line to filter harmful materials included in the exhaust gas, a bypass line that is disposed on the exhaust line such that the exhaust gas bypasses the gasoline particle filter, and a control portion that detects a driving condition of the engine and makes the exhaust gas pass the gasoline particulate filter or makes the exhaust gas bypasses the gasoline particulate filter according to the detected driving condition.

Abstract: An exhaust gas purification system is provided with an exhaust gas purification device (19) for trapping particulate matter, and a control system that performs a regeneration control process to the exhaust gas purification device (19), wherein in cases where the regeneration control process is interrupted in accordance with stop of an internal combustion engine (10), during the stop of the internal combustion engine (10) (or at the time of starting thereof), the control system determines, based on a temperature (catalyst bed temperature) and an amount of PM deposition of the exhaust gas purification device (19), whether the exhaust gas purification device (19) is in a state where the regeneration control process can not be carried out efficiently, and does not resume the regeneration control process at the time of starting of the internal combustion engine (10), in cases where the exhaust gas purification device (19) is in the state where the regeneration control process can not be carried out efficiently.

Abstract: In an engine device provided with an engine which serves as a power source, an exhaust gas purifying filter device which is arranged in an exhaust gas path of the engine, and control means which executes a low rotation control for lowering an engine speed to a predetermined first low rotating speed at a time when a previously set low rotation condition is established, the control means is structured such as to maintain the engine speed at a second low rotating speed which is higher than the first low rotating speed, for suppressing a reduction of an exhaust gas temperature at a time when both of the low rotation condition and a previously set forced regeneration condition are established.

Abstract: An integral water trap and venturi tube element for use in an exhaust stack on a vehicle, the exhaust stack being generally vertically oriented and having a catalyst element or other moisture-sensitive emission control component disposed below the water trap, the venturi tube having an aspirator tube disposed therein to provide a low pressure aspiration source for the vehicle, wherein the venturi tube is so disposed in the exhaust stack to also function as the water trap and allows capture and diversion of water entering the exhaust stack from above.

Abstract: The aim of the invention is to improve the efficiency of an axial-piston motor comprising a fuel supply and an exhaust gas outlet that are coupled in a heat-exchanging manner. To this end, the axial-piston motor is provided with at least two heat exchangers.

Abstract: An exhaust gas treatment device includes an inlet housing having an inlet opening for receipt of an exhaust flow from an engine aligned along a first axis. A main housing includes a cylindrical body portion defining a treatment zone and an exhaust outlet aligned along a second axis extending parallel to the first axis. The inlet housing is in fluid communication with and fixed to an outer surface of the main housing. The inlet housing includes a contoured wall including an end portion positioned opposite the inlet opening, an aperture extending through the wall transverse to the first axis, divergent side wall portions on opposite sides of the inlet opening, and a necked portion having a reduced cross-section positioned downstream of the inlet opening and upstream of the aperture. A component is coupled to the main housing for treating exhaust flowing through the treatment zone.

Abstract: An exhaust system for use with an engine is disclosed. The exhaust system may have an exhaust passage with an indentation having an upstream wall and a downstream wall. The exhaust system may also have a nozzle disposed within the downstream wall, and a flow diverter cantilevered from the upstream wall partway into the exhaust passage.

Abstract: A power generating apparatus includes a rotating shaft, a hydraulic pump driven by the rotating shaft, a hydraulic motor driven by operating oil supplied from the hydraulic pump; and a generator coupled to the hydraulic motor. The apparatus further includes an oil line connected to the hydraulic pump and the hydraulic motor for circulating the operating oil between the hydraulic pump and the hydraulic motor, an oil cooler connected to the oil line for cooling the operating oil by heat exchange with a cooling medium, a cooling-medium line supplying the cooling medium to the oil cooler; a bypass line diverging from at least one of the oil line and the cooling-medium line and merging into at least one of the oil line and the cooling-medium line to bypass the oil cooler; and a flow regulating valve in at least one of the oil line and the cooling-medium line.

Abstract: A compressed-air wind turbine generator system is provided. The system includes a wind turbine, a plurality of compressors for providing compressed air to the wind turbine, a left sail, a right sail, and a rear sail. The center shaft of the wind turbine is connected to the input shaft of a generator set. The plurality of compressors, the left sail, the right sail, and the rear sail are integrally assembled so that they rotate together under the action of the sails within a range of 360 degrees relative to the wind turbine and so that the air inlet surfaces of the compressor always face maximum wind. The system has advantages of low cost, high wind energy utilizing efficiency, large installation capacity, and long service lifetime.

Abstract: A bidirectional axial flow turbine with self-pivoting blades is provided for use in a central opening of submerged horizontally-aligned structure forming a wave energy conversion device. Entry and exit inner guide vanes are positioned on opposite sides of the vertically-aligned central opening, for directing the bidirectional fluid flow into and out of the central opening and inducing a vortex swirl in both directions of fluid flow that has the same direction of rotation. Within the opening, a turbine hub is mounted with a plurality of uniformly spaced self-pivoting blades that have a symmetrical blade profile to the bidirectional flow. The self-pivoting blades automatically change their blade angle in response to the force of water flow on the blades, so that they turn the turbine shaft in the same rotational direction in both flow directions.

Abstract: Pneumatic actuator apparatuses with expandable chambers, and methods of using same. In some embodiments, the apparatuses are self-contained and/or self-inflating.

Abstract: A hydraulic fan circuit is disclosed. The hydraulic fan circuit may have a primary pump, a motor, a fan connected to and driven by the motor, and a flywheel connected to and driven by one of the motor and the fan. The hydraulic fan circuit may also have a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a diverter valve configured to selectively connect the supply passage to a low-pressure sump.

Abstract: A hydraulic power unit is disclosed that is selectively connectable to a hydraulic tool. The hydraulic power unit automatically detects the attached or detached state of the tool and/or operates an unloading valve during activation of the tool.

Abstract: A pressure generating device generates a hydraulic pressure as a result of a tensile or compressive load. The device has connections, one of which can be rigidly connected to a frame by way of a mechanism for introducing a mechanical tensile or compressive load, a pressure cylinder and a piston unit extending at least partially and flexibly in the pressure cylinder and bounding a hydraulic chamber filled with hydraulic fluid jointly with the pressure cylinder. The chamber has a simple and inexpensive construction. The connections are connected to the pressure cylinder or the piston unit by way of a coupling device that is configured such that the same hydraulic chamber has pressure applied thereto under tensile load and under compressive load.

Abstract: Disclosed herein is an apparatus for lever stroke adjustment that includes, a master cylinder body having a master cylinder body wall at least partially bounding an inside of the master cylinder body, a piston bore situated substantially inside the master cylinder body, a rotatable cam assembly extending through the master cylinder body wall and into the piston bore, the cam assembly having a cam shaft with a lobe portion positioned in the piston bore and a cam lever positioned outside of the master cylinder body. The apparatus further including, a piston having a compression passage that includes a first sealing surface and a poppet valve having a first poppet end with a poppet actuating surface and a second poppet end with a second sealing surface, wherein rotation of the cam assembly varies the distance between the first sealing surface and the second sealing surface.

Abstract: A fluid handling system for a use with an engine is provided. The fluid-handling system may have a first turbine connected to receive a portion of an exhaust flow from the engine, a first compressor driven by the first turbine to pressurize an airflow, and a heat exchanger configured to receive a remaining portion of the exhaust flow from the engine and the airflow from the first compressor. The fluid-handling system may also have a second turbine connected to receive the airflow from the heat exchanger, and a generator driven by the second turbine to generate power.

Abstract: Provided is an electric waste gate actuator for a turbocharger, in which the inside of a housing is divided into an upper portion and a lower portion to thereby prevent foreign particles generated in a decelerator from being introduced into a driving motor. The electric waste gate actuator for a turbocharger includes: a housing having an installation space inside; a decelerator installed in an upper portion of the installation space; a lever coupled to an upper end of the decelerator and installed outside the installation space; a driving motor installed in a lower portion of the installation space; a blocking plate dividing the installation space into the upper portion, where the decelerator is installed, and the lower portion, where the driving motor is installed, and preventing foreign particles generated in the decelerator from being introduced into the lower portion of the installation space; and a sensor unit installed under the blocking plate to measure a rotation angle of the decelerator.

Abstract: A centrifugal compressor wheel for a turbocharger is disclosed. The wheel includes an axially extending hub having an inlet end, an outlet end, an arcuate outer surface and a shaft bore. The wheel also includes a blade array disposed on the outer surface of the hub, the blade array comprising a plurality of circumferentially-spaced, radially and axially extending, arcuate centrifugal impeller blades disposed thereon; the hub and the blade array comprising a non-woven, discontinuous-fiber-filled, polymer matrix composite material.

Abstract: An exhaust system for an internal combustion engine is provided. The system comprises an exhaust tract which is connectable to an outlet side of the internal combustion engine, at least one catalytic converter arranged in the exhaust tract downstream of the engine, a particle filter downstream of the at least one catalytic converter, and a secondary-air inlet port provided in the exhaust tract upstream of the particle filter for introducing compressed secondary air into the exhaust tract via at least one flutter valve. In this way, additional oxygen may be supplied to the particulate filter to perform filter regeneration.

Abstract: A supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator. The flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slideable seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization therebetween.

Abstract: The present invention relates to an internal combustion engine and operating method. The internal combustion engine includes a fresh air system for the supplying of fresh air to at least one combustion chamber; an exhaust gas system for the carrying away of exhaust gas from the at least one combustion chamber; an exhaust gas recycling system for the recycling the exhaust gas from the exhaust gas system into the fresh air system; and at least one additional valve, configured in the fresh air system upstream of at least one inlet valve associated with the at least one combustion chambers. A control device is configured to actuate at least one additional valve such that at least one of a particle content in the exhaust gas and a fuel consumption of the internal combustion engine are at least one of optimum and optimal comprise for at least one environmental parameter.

Abstract: System and method for generating electrical power using a solar power system comprising pressurized pipes for transporting liquid water in conjunction with a geothermal power source. The pressurized pipes flow through solar collectors which concentrate light on the water flowing through the pipes. The pressurization in the pipes allows for the water to absorb large quantities of energy. The pressurized and heated water is then pumped to a heat exchanger where the thermal energy is released to produce steam for powering a steam turbine electrical generator. Thereafter, the water is returned to the solar collectors in a closed loop to repeat the process. In conjunction with the solar power system, heated water from the geothermal power source is directed through a second pipe that also traverses the heat exchanger to assist in the production of steam for powering the turbine electrical generator.

Abstract: A solar collector (26) includes: an outer tube (64) of circular cross-section, closed at one of its ends, an absorption layer (52) arranged inside the outer tube (64), for absorbing solar radiation (Rs), and a heat pipe (56) including a hot part (58) laid out inside the outer tube (64), a cold part (60) arranged outside the outer tube (64), and a reservoir (62) containing a heat pipe fluid (63) and extending over the hot part (58) and the cold part (60). The outer tube (64) is hermetically closed around the heat pipe (56) at the other of its ends, a vacuum being formed inside said outer tube (64). For the hot part (58) of the heat pipe (56), the reservoir (62) is applied at least locally against the absorption layer (52).

Abstract: Solar concentrator plant using natural-draught tower technology, in which the tower is, in turn, used as cooling system. The tower houses saturated or superheated steam receivers in cavities with different orientations, with adaptive dynamic control of the heliostat field in order to direct said receivers towards different focusing points, for the production of electricity, process heat or solar fuels or for use in thermochemical processes.

Abstract: A thermoelectric converter includes one or more thermoelectric converter modules. A thermoelectric converter module includes spatially delimited gas volumes interconnected by a regenerator in a gas-permeable manner. During operation of the thermoelectric converter, a first gas volume warmer than the ambient temperature or a fluid flow is heated, and a second gas volume is cooler than the first gas volume. A fluid flow is thermally coupled with the second gas volume to dissipate heat. A volume change element suited to change the size of one or more of the gas volumes can be moved or deformed by an electromagnetic component by creating a magnetic field such that the size of at least one of the gas volumes is changed.

Abstract: A power generation system is provided. The system comprises a first Rankine cycle-first working fluid circulation loop comprising a heater, an expander, a heat exchanger, a recuperator, a condenser, a pump, and a first working fluid; integrated with a) a second Rankine cycle-second working fluid circulation loop comprising a heater, an expander, a condenser, a pump, and a second working fluid comprising an organic fluid; and b) an absorption chiller cycle comprising a third working fluid circulation loop comprising an evaporator, an absorber, a pump, a desorber, a condenser, and a third working fluid comprising a refrigerant. In one embodiment, the first working fluid comprises CO2. In one embodiment, the first working fluid comprises helium, air, or nitrogen.

Abstract: A method for controlling a combustion process, in particular in a firing chamber of a fossil-fired steam generator, is provided. The method includes determining spatially resolved measuring values in the firing chamber. Spatially resolved measuring values are transformed into state variables that may be used for control engineering, and they are subsequently fed as actual values to control circuits. The changes in the controlled variables determined in the control circuits are divided among a plurality of actuators in a backward transformation considering an optimization target. A corresponding combustion system is also provided.

Abstract: A combustor premixer is provided and includes a burner tube having a bell mouth-shaped opening, a plurality of tubular bodies telescopically disposed within the burner tube to deliver combustible materials to a premixing passage defined between the burner tube and an outermost one of the plurality of tubular bodies and a plurality of swirler vanes arrayed circumferentially in the opening, each one of the plurality of swirler vanes including a body extending along a radial dimension from the burner tube to the outermost tubular body and a leading edge protruding upstream from the opening.

Abstract: A combustor assembly includes a support structure and at least one combustor liner panel selectively attached to the support structure. The combustor liner panel includes an uncooled ceramic portion, a cooled ceramic portion and a support that receives the cooled ceramic portion.

Abstract: In a gas turbine combustor and a gas turbine, an air passage (54) that supplies combustion high-pressure air, a pilot nozzle (44), a main fuel nozzle (45), and a top hat nozzle (47) that supply fuel, and openings (64) that supply film air (cooling air) are provided with respect to a combustor inner cylinder (42), and contraction members (71, 72, and 73) are arranged along a circumferential direction on an inner wall surface in a downstream of a flow direction of combustion gas in the inner cylinder (42). The contraction members (71, 72, and 73) are provided in a predetermined area in the circumferential direction excluding penetrating portions (74, 75, and 76), which do not disturb the flow of cooling air, thereby enabling to suppress generation of carbon monoxide and the like and to suppress the occurrence of unstable combustion.

Abstract: A method and system of engine ignition and monitoring is provided. A combustor includes a casing surrounding a combustion zone and an ignitor plug including a tip, a base, and a body extending therebetween. The body extends through the combustor casing such that the tip is proximate the combustion zone. The ignitor plug is configured to receive ignition energy through the base and generate an ignition source at the tip. The ignitor plug is further configured to sense combustion dynamics in the combustion zone and generate a signal relative to the sensed combustion dynamics.

Abstract: A combustion system for a gas turbine engine includes a housing defining a pressure vessel. A master injector is mounted to the housing for injecting fuel along a central axis defined through the pressure vessel. A plurality of slave injectors is included. Each slave injector is disposed radially outward of and substantially parallel to the master injector for injecting fuel and air in an injection plume radially outward of fuel injected through the master injector. The master injector and slave injectors are configured and adapted so the injection plume of the master injector intersects with the injection plumes of the slave injectors. The slave injectors can be staged for reduced power operation.

Abstract: An aircraft system comprising a deflector assembly including, a base having mounting apertures; an inner ring concentrically positioned within an outer ring, the inner ring and the outer ring have an annulus defined therebetween via a base plate, a plurality of rods attached within the annulus and culminating at an apex creating a conical profile; and a forward-mounted cone-shaped deflecting member. The base plate comprises a through hole allowing airflow through the deflector assembly to supply an airplane engine. The aircraft safety device system further comprises at least one locking latch for removably securing the deflector assembly to a housing of the airplane engine. The aircraft safety device is mountable inside a lip of the housing of the airplane engine. Further, the aircraft safety device provides protection for airplane engines from air born animate and inanimate objects.

Abstract: A pressure relief apparatus for an engine compartment having a wall and an opening in the wall is provided. The pressure relief apparatus includes a door panel arranged in blocking relationship to the opening in the wall of the engine compartment, a plurality of hinges coupling the door panel to an inner surface of the wall of the engine compartment, a spring assembly coupled between each hinge and the inner surface of the wall, wherein the spring assembly includes a canister having an open end and a spring element housed within the canister, and a support fitting mounted to the engine compartment wall and having a portion extending toward the open end of the canister for applying a compressive force on the spring element.