Abstract: This invention performs the gas pressurization task of a centrifugal compressor gas turbine engine in a new way. In this invention gas compression takes place by using pinwheel-like thrusters 308, 408, 508 and 608 to induce a very high velocity full forced vortex in the gas being compressed. Much higher “tip” velocities can be achieved because no strength-limited solid centrifugal impeller is required to spin up the gas. Due to the consequent very high vortex velocity a single stage pressure ratio of twenty five to one, or more, may be possible. Because there is no high pressure turbine, the gas pressure delivered to some downstream useful work device is much higher than is the case with conventional gas turbine engines. The invention's compressor requires no major moving parts except for the gas flow. The consequence is that the invention is predicted to have substantially better performance and general characteristics than conventional gas turbine engines.

Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor, an inlet filter house positioned upstream of the compressor, and one or more inlet water separator pads positioned within the inlet filter house. The one or more inlet water separator pads may include a synthetic liquid-gas separator media.

Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor, a turbine, an extraction from the compressor to the turbine, and an extraction cooling system in communication with the extraction. The extraction cooling system may include an evaporative cooling media.

Abstract: The present application provides an inlet air system for cooling an inlet air flow to a compressor of a gas turbine engine. The inlet air system may include a wetted media pad and a drift eliminator positioned downstream of the wetted media pad with an air gap therebetween. The drift eliminator may include a fibrous media pad.

Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor and an inlet air system positioned upstream of the compressor. The inlet air system may include a wetted media pad for evaporative cooling. The wetted media pad may include a contoured configuration.

Abstract: The present application provides a method of evaluating media effectiveness in a gas turbine engine. The method may include the steps of receiving a baseline media effectiveness rating, receiving a media replacement cost, receiving a number of operating parameters from a number of sensors, based at least in part on the operating parameters and the baseline media effectiveness rating, determining a media effectiveness model, based at least in part of the media effectiveness model, determining a loss in evaporative benefit cost over time, determining a time t when the loss in evaporative benefit cost exceeds the media replacement cost, and scheduling media replacement at time t.

Abstract: A combustor heat shield has a heat shield body having a first surface configured to face a combustor shell and an opposed second surface configured to face towards the combustion gases in the combustion chamber. A dilution or igniter hole is defined in the heat shield body. An array of circumferentially spaced-apart cooling holes is provided around the at least one dilution or igniter hole. The cooling holes are oriented to locally deliver a swirl of cooling air around an axis of the dilution or igniter hole. The cooling holes are angled relative to the heat shield body and extend from an inlet on the first surface to an outlet on the second surface. The outlet is positioned closer to a perimeter of the dilution or igniter hole than the inlet.

Abstract: The present application provides a gas turbine engine. The gas turbine engine may include a compressor, a turbine, one or more hot gas path components positioned downstream of the turbine, an extraction from the compressor to the one or more hot gas path components, and an extraction cooling system in communication with the extraction. The extraction cooling system may include an evaporative cooling media.

Abstract: A gas turbine engine system includes a fuel delivery circuit configured to convey fuel, a combustion chamber configured to combust the fuel, and a flexible hose that fluidly connects the fuel delivery circuit to the combustion chamber. The flexible hose includes a combustion chamber connector portion attached to the combustion chamber, a fuel delivery circuit connector portion attached to the fuel delivery circuit, and a central flexible portion connecting the first connector portion to the second connector portion. The central flexible portion is made of a flexible material. In addition, the fuel delivery circuit connector portion includes a pivotal assembly with an adjustable end that is pivotal relative to a central longitudinal axis of the central flexible portion of the flexible hose when the central flexible portion is in a straight condition.

Abstract: A method for producing a device having at least one internal feature includes manufacturing an internal volume of the internal features out of a first material, disposing the internal volume in a parent material that has a higher melting point than the first material, causing the internal volume to melt within the parent material, and allowing at least a portion of the first material to diffuse into the parent material, thereby leaving behind the at least one internal feature within the parent material.

Abstract: According to one embodiment, an air turbine starter is provided. The air turbine starter comprising: a turbine wheel including a hub integrally attached to a turbine rotor shaft and a plurality of turbine blades extending radially outward from the hub; an inlet housing at least partially surrounding the turbine wheel; a nozzle located upstream from the turbine wheel and contained within the inlet housing defining an inlet flowpath between the nozzle and the inlet housing, the inlet flowpath directs air flow into the turbine blades; and a plurality of turbine vanes rotatably connected to the nozzle, each turbine vane extending radially from the nozzle into the inlet flowpath towards the inlet housing; wherein the plurality of turbine vanes are operable to adjust air flow through the inlet flowpath by rotating each turbine vane.

Abstract: A hybrid drive system driven by a gas turbine engine is disclosed. The hybrid drive system includes a planetary gear set, a first motor-generator, and a second motor-generator. The planetary gear set includes a first member, a second member, and a third member. The first member is operatively coupled to the second member and the third member. The first member is operatively coupled to and transmits power from a shaft of the gas turbine engine. The first motor-generator is drivingly coupled to the third member. The second motor-generator includes an output and is drivingly coupled to the second motor-generator by the second member and the third member. The hybrid drive system is configured to transfer the power from the shaft to the output of the second motor-generator.

Abstract: The present disclosure is directed to a gas turbine including a primary compressor, a combustion section disposed downstream from the primary compressor and a turbine disposed downstream from the combustion section. A pipe assembly defines an extraction-air circuit between an extraction port of the primary compressor and an inlet port of the turbine. The gas turbine further includes an extraction-air conditioning system. The extraction-air conditioning system includes a secondary compressor having an inlet and an outlet. Both the inlet and the outlet are fluidly coupled to the extraction-air circuit at respective locations defined along the pipe assembly between the extraction port of the primary compressor and the inlet port of the turbine.

Abstract: A method for operating a power plant may include, during shutdown of a turbine, controlling a damper to move from a first position directing turbine exhaust to enter a heat recovery system to a second position to allow the turbine exhaust to enter a bypass stack and block the turbine exhaust to the heat recovery system. While the position of the damper is maintained in the second position, fired shutdown of the turbine may be performed. In response to instructions to start the turbine, air flow in an exhaust duct for a predetermined period of time is generated, and after generating the air flow for the predetermined period of time, the turbine may be started without performing a purge sequence for the heat recovery system. After starting the turbine, the damper may be controlled between the second position and the first position.

Abstract: A power generation system includes a processor and memory storing instructions that cause the processor to receive a first set of sensor data indicative of one or more ambient conditions with respect to the power generation system, determine whether one of the one or more ambient conditions is above a respective threshold, and send a signal to a valve to open when the one of the one or more ambient conditions is below the respective threshold, such that the valve is configured to fluidly couple a first fluid exiting a compressor to an inlet of the compressor.

Abstract: A method for operating a gas turbine system includes utilizing a gas turbine controller to determine a schedule for a firing temperature for operative burners of a second combustor located downstream of a first combustor when the gas turbine system is operating in a low part load mode. During the low part load mode, multiple burners for the second combustor are switched-off. Further, the schedule is determined based on a position of inlet guide vanes of a compressor of the gas turbine system located upstream of both the first and second combustors. The method also includes controlling the firing temperature of the operative burners utilizing the schedule during the low part load mode to keep the gas turbine system within relevant operational limits of the gas turbine system.

Abstract: A power generation system includes one or more processors and memory storing instructions that cause the one or more processor to execute a series of steps. That is, the one or more processors receive data indicative of a plurality of inputs associated with the power generation system, such that the plurality of inputs include a flow rate of a valve coupled between an inlet of a compressor in the power generation system and an exhaust of the compressor, where the valve fluidly couples a first fluid exiting the exhaust of the compressor to the inlet of the compressor.

Abstract: An electronic throttle, including: a throttle housing and, located inside the throttle housing: an electric machine; a torque transfer means; a throttle shaft and a butterfly valve. The throttle shaft passes through a throttle throat, and is supported by being inserted into a first mounting hole and a second mounting hole in the throttle housing, wherein the first mounting hole and the second mounting hole are located in the throttle housing on two sides of the throttle throat respectively, the second mounting hole being located on that side which is closer to the torque transfer means, and the first mounting hole and second mounting hole having inner diameters of the same size. The throttle according to the present device has the advantages of simple component structure, low costs and ease of processing.

Abstract: A two stroke internal combustion engine having a piston reciprocating in a cylinder between TDC and BDC positions to influence a crank shaft with help of a connecting rod. A Rotational Valve (RV) associated with the cylinder body selectively altering the timing and duration of opening and closing of cylinder intake and exhaust ports. The said rotational Valve may be associated with the said crank shaft through a drive train assembly. Drive train assembly may control the Rotational Valve through electronic or mechanical means.

Abstract: Provided is a work vehicle with which crane work maintenance can be carried out efficiently. Device information relating to a work device that performs prescribed work is detected, and it is determined whether or not the device information indicates a management operation state in which a management operation, which is carried out such that an operation corresponding to the prescribed work is performed, is being carried out. When the management operation state is determined to be in effect, engine stopping is restricted even if an engine stopping condition is net.

Abstract: Provided are an apparatus and a method for compensating for a fuel injection quantity in an engine of a vehicle. The apparatus for compensating for a fuel injection quantity may include: an information collector collecting status information of the vehicle; an oxygen sensor outputting a voltage corresponding to a concentration of oxygen in exhaust gases; a high pass filter (HPF) filtering the output voltage of the oxygen sensor; and a controller generating a reference value on the basis of the status information of the vehicle. In particular, the controller calculates an offset using the reference value and a signal obtained by high-pass filtering the output voltage, and compensates for a fuel injection quantity in each individual cylinder of the engine of the vehicle on the basis of the offset.

Abstract: Methods and systems are provided for a fuel injector coupled to mixing passages for entraining combustion chamber gases with a fuel injection to decrease formation of soot throughout a range of engine operating parameters. In one example, a method includes decreasing a combustion chamber temperature in response to an amount of sensed light.

Abstract: A system for control of an internal combustion system having subsystems, each with different response times. Subsystems may include a fuel system, an air handling system, and an aftertreatment system, each being operated in response to a set of reference values generated by a respective target determiner. Calibration of each subsystem may be performed independently. The fuel system is controlled at a first time constant. The air handling system is controlled on the order of a second time constant slower than the first time constant. The aftertreatment system is controlled on the order of a third time constant slower than the second time constant. A subsystem manager is optionally in operative communication with each target determiner to coordinate control. Generally, dynamic parameters from slower subsystems are treated as static parameters when determining reference values for controlling a faster subsystem.

Abstract: A control device of an internal-combustion engine capable of improving merchantability by promptly and appropriately securing an in-cylinder fresh air amount even when an internal-combustion engine including a boost device and an EGR device is in a transient operation state is provided. A control device 1 includes an ECU 2. The ECU 2 calculates an intake air amount GGAScyl, sets an upper-limit target fresh air amount GAIR_hisH, controls a boost operation of a boost device 7 when an operating range of an internal-combustion engine 3 is in a predetermined boost range, and controls an EGR device 5 so that exhaust gas recirculation is stopped when the intake air amount GGAScyl does not reach an upper-limit target fresh air amount GAIR_hisH and the exhaust gas recirculation is executed when the intake air amount GGAScyl reaches the upper-limit target fresh air amount GAIR_hisH in the predetermined boost range.

Abstract: An air bypass system for an internal combustion engine is provided. The internal combustion engine includes an air intake system defining a first air intake chamber and a second air intake chamber coupled in flow communication with the first air intake chamber. The air bypass system includes at least one bypass assembly controlling flow communication between the first air intake chamber and the second air intake chamber, said at least one bypass assembly facilitating air flow from the second air intake chamber into the first air intake chamber during an expansion stroke of the internal combustion engine.

Abstract: Methods and apparatuses for calibration and control of various engine subsystems using a target value approach. Under the target value approach, the control of each engine subsystem is separated or decoupled to include a set of target values, or a reference value set. A subsystem has a corresponding target determiner, which provides a target value set, or reference value set, in response to a basis variable set and optionally an overall subsystem target. The basis variable set includes parameters selected to robustly characterize the variables that affect the operation of the particular subsystem. The target determiner is optionally calibrated to provide a reference value set within specifications of the subsystem. A physical subsystem controller operates in response to the reference value set.

Abstract: An internal combustion engine is provided, in which a quantity of NOx emission can be reduced without using any special components even when a NOx reduction catalyst has an elevated temperature due to high-load operation. The internal combustion engine includes an engine, a three-way catalyst and a NOx reduction catalyst for purifying exhaust gas emitted from the engine, a temperature sensor for acquiring the temperature of the NOx reduction catalyst, a rotation speed sensor for acquiring an engine rotation speed, an injection controller for controlling a fuel injection quantity in the engine, and a combustion switching controller for switching a combustion mode of the engine between lean and stoichiometric combustion modes based on the NOx reduction catalyst temperature, the engine rotation speed, and the fuel injection quantity acquired from the fuel injection controller.

Abstract: A vehicle control device is provided, which includes an engine, an engine control mechanism configured to control torque generated by the engine, a steering device, and a processor. The processor determines whether a vehicle is traveling and a steering angle related value that is related to a steering angle of the steering device increases, executes a control of the engine control mechanism to reduce the torque when the vehicle is determined to be traveling and the steering angle related value is determined to increase, determines whether a combustion frequency of the engine per unit time is lower than a given value, executes the control for reducing the torque when the combustion frequency is determined to be higher than the given value, and prevents the execution of the control for reducing the torque when the combustion frequency is determined to be lower than the given value.

Abstract: A vehicle control device is provided, which includes an engine, an engine control mechanism configured to control torque generated by the engine, and a processor configured to execute a vehicle attitude controlling module to perform a vehicle attitude control in which the engine control mechanism is controlled to reduce the torque so as to decelerate the vehicle, when a condition that the vehicle is traveling and a steering angle related value that is related to a steering angle of a steering device increases is satisfied, and a preventing module to prevent a combustion frequency of the engine per unit time from falling below a given value while the vehicle attitude controlling module executes the vehicle attitude control.

Abstract: Various methods and arrangements for improving fuel economy and noise, vibration, and harshness (NVH) in a skip fire controlled engine are described. An engine controller dynamically selects a gas spring type for a skipped firing opportunity. Determination of the skip/fire pattern and gas spring type may be made on a firing opportunity by firing opportunity basis.

Abstract: Methods and apparatuses for calibration and control of various engine subsystems using a target value approach. Under the target value approach, the control of each engine subsystem is separated or decoupled to include a set of target values, or a reference value set. A subsystem has a corresponding target determiner, which provides a target value set, or reference value set, in response to a basis variable set and optionally an overall subsystem target. The basis variable set includes parameters selected to robustly characterize the variables that affect the operation of the particular subsystem. The target determiner is optionally calibrated to provide a reference value set within specifications of the subsystem. A physical subsystem controller operates in response to the reference value set.

Abstract: A method for preconditioning a vehicle comprising a combustion engine before start by using electricity from an external grid, comprising the step of heating the catalytic converter with an electrical heater mounted inside catalytic converter, where the heater is powered by the external grid. As a result, cold start emissions can be advantageously reduced, and the energy consumption and the exhaust emission of the vehicle can be minimized.

Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.

Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.

Abstract: The present disclosure relates to internal combustion engines. The teachings thereof may be embodied in a method for determining a torque reserve for an internal combustion engine during a change of an operating state. The method may include: operating the internal combustion engine in the first operating state; determining a rotational speed; determining a torque; determining an air mass setpoint value based on the rotational speed and the torque in the second operating state; calculating a torque setpoint value depending on the rotational speed and the air mass setpoint value in the first operating state; and determining a torque reserve for the transition from the first operating state to the second operating state using based on the torque and on the torque setpoint value.

Abstract: Provided is an engine control device for correcting output characteristics of an oxygen sensor and performing air-fuel ratio feedback control. The engine control device includes various sensors for detecting operating state information of an engine, an oxygen sensor, and air-fuel ratio feedback controller to adjust an amount of fuel injected into the engine, on the basis of the operating state information and an output voltage value of the oxygen sensor, wherein the air-fuel ratio feedback controller calculates, in accordance with the operating state information based on detection results from the various sensors, a coefficient for correcting the output voltage value, implements air-fuel ratio feedback control on the basis of an air-fuel ratio feedback control correction amount calculated using a corrected oxygen sensor output voltage value calculated on the basis of the coefficient, and adjusts the amount of fuel injected into the engine.

Abstract: Methods and systems are provided for determining condition of an air filter coupled to an intake passage of an engine system. In one example, a method may include estimating a resistance of the air filter based on a manifold air charge value. The manifold air charge value may be either a mass air flow or a manifold air pressure.

Abstract: A control system for a spark-ignited gaseous fuel engine includes a fuel quality sensing mechanism, and a control device structured to receive data produced by the fuel quality sensing mechanism indicative of a change in energy content of a stream of gaseous fuel and air, and to vary an amount of an augmenting fuel that is injected into the stream of gaseous fuel and air based on the data. The strategy has application to low energy gaseous fuel and air mixtures such as are produced in mine ventilation.

Abstract: Provided is a control device for an engine comprising an engine whose combustion mode is switchable according to an engine operation state, wherein the control device is capable of controlling the engine while suppressing generation of knock noise due to abnormal combustion. The control device comprises: a basic target torque-determining part (61) configured to determine a basic target torque based on a vehicle driving state including manipulation of an accelerator pedal; a torque reduction amount-determining part (63) configured to determine a torque reduction amount based on a vehicle driving state other than the manipulation of the accelerator pedal; a final target torque-determining part (65) configured to determine a final target torque based on the basic target torque and the torque reduction amount; and an engine control part (69) configured to set the combustion mode to a premixed combustion mode or a diffusion combustion mode according to the engine operation state.

Abstract: Methods and systems are provided for reducing port injection fuel errors by selectively reactivating a direct fuel injector. Responsive to an increase in driver demand received while delivering fuel to a cylinder via port injection only, wherein the increase in driver demand is received late in the port injection window, the port injection error is addressed by reactivating a direct injector on the same engine cycle and delivering at least a portion of the fuel mass corresponding to the error via the direct injector. Additionally, a portion of the fuel mass may be delivered by the port injector on the same engine cycle by extending the end of injection timing, if possible.

Abstract: An engine cover is disclosed that includes a contoured laminate defining a plurality of accessory holes configured to receive a plurality of accessories. The engine cover also includes a corrugated reinforcing structure overlaid on the contoured laminate and connecting with the contoured laminate with at least one smooth transitioning angle between the contoured laminate and the corrugated reinforcing structure. The corrugated reinforcing structure defines a plurality of attachment holes. The engine cover also includes a plurality of fasteners with at least one of the plurality of fasteners being arranged in at least one of the plurality of attachment holes.

Abstract: A device and method for preventing and removing piston deposit build-up on a piston cylinder assembly of an engine, including a diesel engine, is disclosed. A cylinder having an inner sleeve for receiving a piston, has a piston scraping ring positioned on the cylinder sleeve. The piston scraping ring includes an inner surface, and has a curved or hook shaped feature on its inner surface. The curved or hook shaped feature, named the ‘power groove’ for the purposes of this application, allows for reduced wear between the piston rings and the cylinder sleeve by reducing the pressure on the piston rings by expanding and reversing the flow of combustion gases. Additionally, this reversal of the combustion gases results in a decrease in blow-by gases passing between the piston rings and cylinder sleeve thereby improving sealing between the piston and the cylinder.

Abstract: A waste heat recovery apparatus includes an evaporator, an expander, a condenser, a liquid-phase refrigerant supply device, and a control device. The control device is configured to control the liquid-phase refrigerant supply device so as to bring the supply of the liquid-phase refrigerant by the liquid-phase refrigerant supply device into a stopped state at least until an amount of the liquid-phase refrigerant stored in the evaporator becomes equal to or lower than a predetermined low refrigerant amount, during operation of the internal combustion engine.

Abstract: An aircraft gas turbine having a core engine and having a bypass flow channel which surrounds said engine and which forms, with a casing of the core engine and a radially outer housing wall, an outlet nozzle, characterized in that, in the region of the outlet nozzle, there is arranged a ring-shaped element which is able to be displaced in the axial direction, wherein a ring-shaped channel which is able to be varied by way of the displacement of the ring-shaped element is formed between the casing of the core engine and the ring-shaped element.

Abstract: Methods and systems are provided for conducting an evaporative emissions test on a fuel tank and an evaporative emissions system in a vehicle. In one example, pressure for the evaporative emissions test is provided by inductive heating of the fuel tank while the vehicle undergoes an inductive battery charging operation. In this way, evaporative emissions testing may be enabled under conditions wherein sufficient heat rejection from the engine to the fuel tank is not available, and further enables evaporative emissions testing without the use of an external pump thus eliminating additional costs, and reducing the space occupied in the vehicle for evaporative emissions testing diagnostics.

Abstract: A canister that is mounted on a vehicle includes an inflow port, an outflow port, an atmosphere port, a valve, at least one honeycomb body, and a spacer. The inflow port is coupled to a fuel tank in the vehicle. The outflow port is coupled to an intake flow passage of an internal combustion engine in the vehicle. The atmosphere port communicates an interior of the canister with an exterior of the canister. The valve opens and closes the atmosphere port. The honeycomb body is arranged in the most downstream side in a gas flow passage that leads to the atmosphere port from the inflow port, which is the upstream of the valve, enables adsorption and desorption of an evaporated fuel evaporated from the fuel tank, and has a honeycomb configuration. The spacer is arranged between the valve and the honeycomb body and maintains a specific distance therebetween.

Abstract: An assembled support for supporting an adsorbent according to an embodiment of the present invention may include two or more core members configured to be coupled in the longitudinal direction and configured to include: a cylindrical body configured to have a plurality of first partitions formed therein to enable ventilation; at least one pair of first coupling protrusions configured to be provided on the rim of one end of the body to face each other; and at least one pair of first coupling protrusion receiving portions configured to be provided on the rim of the other end of the body to face each other, wherein the first coupling protrusions of one core member are received in the first coupling protrusion receiving portions of another core member in order to thereby couple the core members to each other, and wherein the surfaces of the core members are coated with hydrocarbon adsorbents.

Abstract: An exhaust gas control apparatus of an internal combustion engine includes a turbocharger including a turbine in an exhaust passage of the internal combustion engine, a post-processing device configured to control exhaust gas, the post-processing device being disposed in the exhaust passage downstream of the turbine, an EGR passage configured to connect the exhaust passage downstream of the turbine and upstream of the post-processing device with a cylinder of the internal combustion engine, and an EGR device including an EGR valve which is disposed in an end portion on the cylinder side of the EGR passage and opens or closes the EGR passage in the cylinder.

Abstract: Methods and systems are provided for an exhaust gas recirculation mixer. In one example, a mixer may include a separate chambers configured to receive exhaust gas and intake gas, and where the exhaust gas and intake gas merge in an outlet of the mixer. The outlet of the mixer is located at an intersection of upstream and downstream surfaces of the mixer.

Abstract: An exhaust heat recovery device includes a heat exchanger that performs heat exchange between exhaust gas flowing in from a first exhaust gas conduit and a fluid as a heated object. Regarding the heat exchanger, a flow passage for the exhaust gas inside the shell is configured so that the exhaust gas flowing in from the exhaust gas inflow passage reaches a branch after contacting a plate in a division area and the exhaust gas not branched to an exhaust gas recirculation flow passage at the branch flows out to a second exhaust gas conduit after contacting a plate in a division area.