Abstract: The invention relates to a valve control means (1) for an internal combustion engine, having two cams (2, 3) which are arranged one behind another on a camshaft (20), the cams (2, 3) having different cam contours, a drag lever system (4), having a first lever (5), a second lever (7) which is connected to the first lever (5) such that it can be rotated about a pivot point (6), and a third lever (8) which is connected fixedly to the first lever (5), the first lever (5) having a roller pickup (15) for a first cam (2) and the second lever (7) having a roller pickup (17) for the second cam (3), the third lever (8) having a slotted guide (9) for the rectilinear positive guidance of a valve (30), the drag lever system (4) being mounted at the pivot point (6) such that it can be adjusted on a circular path (10) about the rotational axis (21) of the camshaft (20) in a cylinder block or cylinder head of the internal combustion engine, and having a play compensation element (11) between the second lever (7) and the firs

Abstract: Methods and systems are provided for ventilating a crankcase in an engine. In one example, when the engine is operating boosted under cruising conditions, fuel vapors from the crankcase may flow to each of a compressor inlet and an intake manifold of the engine. In this way, the crankcase may be effectively purged.

Abstract: Crankcase ventilation filter systems are described, along with components and selected features thereof. Example features include preferred use of a backpressure limiting valve regulation (regulator) arrangement; and, a vacuum limiting valve regulation (regulator) arrangement. An example embodiment is provided which use two filter cartridges and two drain arrangements. Another example is provided which uses a single cartridge. Example filter cartridges are depicted and described.

Abstract: An oil separator in a positive crankcase ventilation (PCV) system is described herein. The oil separator includes an oil separation conduit in fluidic communication with an intake conduit and an oil reservoir and an entry conduit including an entry conduit orifice arranged at an angle of between 80 and 100 degrees with regard to the oil separation conduit, the entry conduit orifice opening into the separation conduit at a point between the separation conduit outlet and the separation conduit inlet.

Abstract: A gas treatment device includes an electric discharger, an electromagnetic wave oscillator, an antenna, and a fan. The electric discharger ionizes gas in a target space. The electromagnetic wave oscillator oscillates an electromagnetic wave to be radiated to the target space. The electromagnetic wave is radiated by the antenna toward a gas ionization region in which gas ionized by the electric discharger is provided. The electric discharger ionizes gas and the antenna radiates the electromagnetic wave thereto to generate plasma. The fan moves at least a part of the electric discharger, thereby changing a location of the gas ionization region, thereby moving the location of the plasma.

Abstract: The present invention discloses an exhaust gas purification system for an internal combustion engine, which is provided with: a low pressure EGR mechanism that is equipped with a low pressure EGR passage and a low pressure EGR valve; a selective reduction type catalyst that is arranged in a portion of the exhaust passage downstream; a supply device which serves to supply an ammonia derived compound to said selective reduction type catalyst; and a control unit that causes said supply device to supply the ammonia derived compound when said low pressure EGR valve is in a valve open state, makes the amount of the ammonia derived compound supplied from said supply device larger in cases where an amount of the low pressure EGR gas flowing through said low pressure EGR passage is large, in comparison with the case where it is small.

Abstract: A pump assembly (214) for an exhaust treatment system is provided that may include a housing (220), a gas flow path (259), a reductant flow path (239) and a pump (224). The housing may include a first inlet (236) configured to receive a reductant from a tank (210), a second inlet (252) configured to receive a gas from a gas compressor (13), and an outlet (262) through which the gas and the reductant exit the housing. The gas flow path may extend between and fluidly communicate with the second inlet and the outlet. The reductant flow path may extend between and fluidly communicate with the first inlet and the outlet. The pump may be at least partially disposed within the housing and may include a motor in a heat transfer relationship with gas flowing through the gas flow path.

Abstract: A honeycomb structure includes a tubular honeycomb structure body having porous partition walls to define and form a plurality of cells and an outer peripheral wall, and a pair of electrodes disposed on a side surface of the honeycomb structure body. An electrical resistivity of the honeycomb structure body is from 1 to 200 ?cm, each of the pair of electrodes is formed into a band-like shape extending in an extending direction of the cells of the honeycomb structure body, one electrode in the pair of electrodes is disposed on a side opposite to the other electrode in the pair of electrodes via a center of the honeycomb structure body, the honeycomb structure body has a central region and an outer peripheral region, and an electrical resistivity of the central region is lower than an electrical resistivity of the outer peripheral region.

Abstract: Various systems are provided for an exhaust aftertreatment system that includes a support platform, a plurality of isolated legs coupled to the support platform, a plurality of catalysts arranged in parallel with one another and supported above the support platform by the plurality of isolated legs, and an aftertreatment outlet manifold coupled above the plurality of catalysts.

Abstract: Provided is an apparatus which is capable of excellently mixing exhaust gas discharged from an engine with exhaust air to thereby improve lowering of temperature of the exhaust gas and suppression of noise. The apparatus comprises: a duct provided beneath an engine and having an upper edge surrounding an exhaust air inlet; an exhaust-gas pipe having an intra-duct portion extend inside the duct in a direction approximately perpendicular to a flow direction of the exhaust air; and an exhaust-gas-pipe cover provided just above the intra-duct portion to protect the intra-duct portion from oil which can drop down from above.

Abstract: A boat motor flushing system that allows for single handed manipulation when remotely positioning the flushing ears providing a source of fresh water when flushing or performing maintenance on the motor of a boat stored on a lift. The system is comprised of a water passage tube, a locking rod, flushing ears, gripping handle and locking assembly.

Abstract: A thermostatic valve assembly for a cooling system of an internal combustion engine provided with a radiator is provided. The thermostatic valve assembly includes a valve body having an inlet from the radiator, an inlet from the engine and an outlet to the engine. A main valve plate opens and closes the pathway of a cooling fluid from the radiator. A wax element is placed in a chamber of the valve body in fluid communication with the inlets and the outlet. The wax element has a piston mechanically connected to the main valve plate at a distal end. A main spring keeps the main valve plate closed until a target temperature of the cooling fluid coming from the engine is reached. An auxiliary valve plate opens and closes a direct pathway of the cooling fluid from the radiator to the chamber in which the wax element is placed.

Abstract: An internal combustion engine control device which switches between a first operation of compression-igniting a premixed gas in a combustion chamber and a second operation of forcibly igniting the premixed gas through a spark plug in the combustion chamber. When switching between the first operation and the second operation, the control device inserts a transitional operation between the first operation and the second operation for the purpose of reducing torque variations in an internal combustion engine. In the transitional operation, the spark plug does not perform electric discharging, instead, the spark plug emits an electromagnetic wave to increase the temperature of the premixed gas, and subsequently, the premixed gas is compression-ignited.

Abstract: The application relates to spark initiation under varied aircharge density and composition. An engine is disclosed comprising at least two cylinders with spark plugs therein; an integrated exhaust manifold, the integrated exhaust manifold having a wall portion and an adjustable shutoff element within the wall portion wherein the wall portion divides exhaust pipes of the at least two cylinders and the adjustable shutoff element allows exhaust gas from a first cylinder into an exhaust pipe of an adjacent cylinder. Hot exhaust gas may be taken into an adjacent cylinder serving as ignition gas and allowing the engine of the present disclosure to undergo spark ignition at low loads, or autoignition at high loads.

Abstract: A engine system, comprising a cylinder head with one or more cylinders, an outlet opening of a cylinder coupled to an exhaust line for discharging the exhaust gases via an exhaust-gas discharge system; an inlet opening of a cylinder coupled to an intake line for supplying charge air via an intake system, the intake system including one or more compressors for compressing the charge air and a charge-air cooler coupled to the intake system, the charge-air cooler including a first refrigerant evaporator through which a refrigerant and charge air can flow. The use of a refrigerant evaporator allows air charge to cool to a temperature below the ambient temperature.

Abstract: The two-cycle engine comprises a first scavenging opening and second scavenging opening on the inner peripheral wall of a cylinder bore, and a first scavenging passage and second scavenging passage connecting the first scavenging opening and second scavenging opening to the crank chamber. The first and second scavenging passages are provided with an outflow direction change device directing the outflow of an air-fuel mixture flowing out from near the top dead center of the first and second scavenging openings into the cylinder bore and the outflow of the air-fuel mixture flowing out from near the bottom dead center of the first and second scavenging openings into the cylinder bore in different directions.

Abstract: A component for turbocharger applications, in particular in diesel engines, made of an iron-based alloy having an austenitic base structure which has a carbide structure.

Abstract: A supercharged internal combustion engine wherein a two-channel turbine comprising a shut-off body positioned within a flow transfer duct within a turbine housing fluidly couples the two channels of a turbine housing to one another via the transfer duct responsive to the exhaust gas flow rate to enable better operation of the turbocharger.

Abstract: Methods and systems are provided for adjusting intake airflow through two induction passages. In response to increased torque demand, intake airflow may be directed through a first induction passage including an exhaust-driven turbocharger compressor and through a second induction passage including an electric compressor. Further, after the turbocharger compressor increases speed, intake airflow may be directed again through the first induction passage to further increase boost.

Abstract: Embodiments for controlling condensate in a charge air cooler are provided. In one example, a method for a charge air cooler comprises, responsive to a condensate level in the charge air cooler, increasing boost pressure and maintaining a requested level of torque by routing a portion of air flow exiting the charge air cooler to an intake passage upstream of a compressor. In this way, accumulated condensate in the charge air cooler may be removed while maintaining driver-requested torque.

Abstract: A method for operating turbocharger waste gate of a turbocharged engine is disclosed. In one example, the method operates the waste gate synchronous with engine operation via a mechanical coupling between the waste gate and a camshaft or a crankshaft. The approach may reduce turbocharger lag and improve turbocharger efficiency.

Abstract: A mixing block to supply a throttle-able hydrogen and air mixture to an internal combustion engine includes a bore through the mixing block between an air intake side and an engine intake side. A slider chamber is disposed orthogonal to and intersecting the bore, where the slider chamber houses a movable slider biased to at least partially block the bore but throttle-able to overcome the bias and reduce blockage of the bore. A jet chamber is disposed parallel to and intersecting the slider chamber and extending away from the slider chamber a distance sufficient to accommodate a shaped needle, where the needle is connected to the slider on one side such that the needle moves within the jet chamber as the slider moves in the slider chamber.

Abstract: The present disclosure relates to a method for controlling an exhaust gas recirculation apparatus for heavy construction equipment, and more particularly, to a method for controlling an exhaust gas recirculation apparatus for heavy construction equipment, capable of controlling exhaust gas at an appropriate pressure at an appropriate step when making exhaust gas discharged from an engine flow into the engine together with fresh gas.

Abstract: A variable compression ratio apparatus mounted on an engine configured to receive combustion force of a mixer from a piston to rotate a crankshaft, and configured to change a compression ratio of the mixer may include an eccentric bearing assembly connected with the piston through a piston pin, and including an eccentric ring including an eccentric hole through which the piston pin passes so that the piston pin may be rotatably installed while being eccentric to the eccentric ring, and an eccentric link connected to the eccentric ring to transfer rotation force thereof to the eccentric ring, a connecting rod including one end provided with a mounting hole into which the eccentric ring may be rotatably inserted, a central portion provided with an operation hole, wherein the eccentric link may be movable through the operation hole, and the other end rotatably connected to the crankshaft while being eccentric to the crankshaft, and a control shaft connected to the eccentric link and configured to rotate the ecce

Abstract: An internal combustion engine having an anodic oxidation coating formed on at least a part of a wall surface that faces a combustion chamber, wherein the anodic oxidation coating has voids and nano-holes smaller than the voids; at least part of the voids are sealed with a sealant derived by converting a sealing agent; and at least a part of the nano-holes are not sealed.

Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.

Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.

Abstract: A distributed bleed system temperature management scheme utilizes a distributed, closed loop temperature protection function. By allowing consumer systems to limit the consumer flow to meet a specified bleed system outlet temperature (which may be different for each consumer or group of consumers), each system can be penalized according to their level of importance. The closed loop approach allows optimization of the performance reduction instead of relying on conservative assumptions as is done with conventional systems. In some embodiments, each consumer system may have a different temperature limit at which the consumed flow is limited to maintain a given bleed system exit temperature. The temperature setpoints may be separated by a minimum temperature, based on sensor and controls tolerances, to ensure that the flow limiting functions do not interact with each other.

Abstract: Embodiments of a Gas Turbine Engine (“GTE”) are provided, as are embodiments of a plasma flow-controlled intake system for deployment on a GTE. In one embodiment, the GTE includes a turbine section, a combustion section upstream of the turbine section, a compressor section upstream of the combustion section, and intake section upstream of the compressor section. The intake section includes a plenum, a first inlet fluidly coupled to the plenum, and a flow-obstructing structure projecting into the plenum and having an outer surface impinged by the airflow directed into the plenum through the first inlet during operation of the GTE. A first array of plasma actuators is disposed on flow-obstructing structure and, when activated, suppresses vortex shedding of the air flowing over the outer surface of the flow-obstructing structure.

Abstract: An inlet system for a gas turbine includes an inlet air duct; a silencer disposed in the inlet air duct, the silencer including a plurality of panels with spaces between the panels; and a conduit with orifices disposed to inject inlet bleed heat into each of the spaces. A method of conditioning inlet air for a gas turbine includes flowing air through spaces between panels of a silencer in an inlet air duct of the gas turbine, and injecting inlet bleed heat through orifices and into each of the spaces.

Abstract: A heat recuperator includes a plurality of channel walls composed substantially of thermally-conductive material and supported in spaced-apart relation, defining fluid channels and interstices therebetween. The fluid channels receive at least one primary fluid flow and the interstices receive at least one secondary fluid flow so as to effect heat exchange between the two flows. In use, the plurality of channel walls are deformable by pressure differential between the primary and secondary fluid flows. When at least some of the channel walls are in a deformed state, the plurality of channel walls are stabilized through press fit engagement of mutually opposed contact regions formed in adjacent pairs of the channel walls.

Abstract: Disclosed is a solar assisted combined cycle power plant having a compressor that pressurizes combustion air, a combustor that mixes and burns the combustion air and gas turbine fuel to generate a high-temperature combustion gas, a gas turbine that drives the compressor by using the combustion gas, an exhaust heat recovery steam generator that obtains steam from thermal energy of a gas exhausted from the gas turbine, and a steam turbine that is driven by using the steam obtained by the exhaust heat recovery steam generator. The solar assisted combined cycle power plant includes a solar collector to turn supplied water to warm water; a heat accumulator that stores pressurized hot water from the solar collector and the exhaust heat recovery steam generator; and a spray device that handles the pressurized hot water as spray water and sprays the spray water onto the air to be taken into the compressor.

Abstract: A heat shield device for a yoke suspending an engine from an aircraft is provided. The device includes panels able to be fixed to the yoke, at least one of the panels extending radially in the direction of the axis of the engine, and a component configured to be fixed to the engine and including a groove shaped in such a way that the lower end of the panel can be inserted into it.

Abstract: An apparatus for supporting an aft portion of a transition duct in a gas turbine engine includes a transition aft frame that engages with an annular shaped stator component disposed in a turbine section of the gas turbine engine. The transition aft frame includes radially inner and outer panels and circumferentially spaced first and second side panels connecting the inner and outer panels. A forward face of the stator component includes first and second connection points circumferentially spaced apart. The transition aft frame includes first and second attachment structures that respectively engage with the first and second connection points when the transition duct is aligned axially with the stator component. The first and second attachment structures are spaced apart in a manner effective to transfer moment load from the first and second attachment structures to the first and second side panels respectively.

Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

Abstract: A planet gear for use in an air turbine starter is formed of a first part having a set of gear teeth at a first axial location. A shaft extends axially away from the first set of gear teeth. A second part is interference fit on the first part, with the second part having a second set of gear teeth. The second part is mounted on the shaft of the first part. An outer diameter of the shaft is selected to be significantly larger than an inner diameter of a cylindrical portion of the second part which is interference fit on the shaft. A ratio of the outer diameter to the inner diameter is between 1.0005 and 1.0100. A planetary gear system, an air turbine starter and a method of installing a planet gear are also disclosed.

Abstract: A seal mechanism is provided which comprises a structure capable of accommodating radial expansions of turbine rotor without increasing an axial size thereof and providing a reliable sealing property for the turbine rotor for a long time. The seal mechanism comprises a labyrinth seal 91, 93 defined by a projection 87 provided on the turbine rotor 11B, an outer member 67 provided radially outward of the projection and supported for displacement in a radial direction, and an inner member 69 provided radially inward of the projection and supported for displacement in the radial direction. A thermal expansion rate of the inner member is greater than that of the outer member.

Abstract: A system includes a gas turbine system that has a turbine, a combustor, and a compressor having an air intake. The air intake is configured to supply an air flow to the compressor. The system also includes a fluid injection system that has a fluid wash system configured to inject a wash fluid into the gas turbine system via the air intake. The fluid wash system includes an injector configured to inject the wash fluid into the gas turbine system and an anti-icing system configured to inject an anti-icing fluid into the gas turbine system via the air intake. The anti-icing system is configured to inject the anti-icing fluid into the gas turbine system via the injector.

Abstract: Gas turbines with multiple gas flow paths are provided. In this regard, a representative gas turbine includes: a spool; a compressor; a turbine mechanically coupled to the spool; the compressor having a first set of blades and a second set of blades, the second set of blades being located downstream of the first set of blades, the first set of blades and the second set of blades being driven by the spool; and means for enabling the first set of blades to rotate at a lower rotational speed than the second set of blades.

Abstract: A method of controlling an overspeed safety system for an aircraft having at least two engines. The method includes setting said overspeed safety system for the engines, monitoring the speeds of rotation of the engines, detecting overspeed on one of the engines, shutting down the engine in question in the event of detecting overspeed, and inhibiting the operation of the overspeed safety system for the other engine(s) still in operation. The method also comprises the steps of monitoring safety parameters associated with the operation and/or the shutting down of the engine that has been shut down; and maintaining the inhibition or resetting the overspeed safety system for the other engine(s) still in operation, as a function of one or more safety parameters.

Abstract: A system and method for controlling the quantity of compressed air that may enter into an engine cylinder during the intake stroke of a piston during an engine braking event. A control throttle may be positioned to restrict the quantity of compressed air that may enter into the cylinder during the intake stroke. The control throttle may also be positioned downstream of the engine and configured to adjustably restrict the quantity of exhaust gas that may be delivered to a turbine. By restricting the exhaust gas delivered to the turbine, the power generated by the turbine that is used by the compressor to compress intake air may also be reduced. Moreover, by controlling the power available to the compressor, the quantity of compressed intake air may be controlled, which allows for control of the quantity of compressed air that enters into the cylinder during the compression stroke.

Abstract: Methods and systems are provided for depressurizing a fuel pressure regulator during engine cold start and varying fuel injection pressure after cold start in a gaseous-fueled vehicle. A mechanical pressure regulator may be modified to include valves which may be controlled to depressurize a reference chamber of the regulator when gaseous fuel injection is inactive (e.g., before and during cold start), and to regulate the pressure of gaseous fuel to varying pressures based on electronic pressure feedback and engine operating conditions when gaseous fuel injection is active. In one example, the pressure in the reference chamber of a pressure regulator may be varied by controlling valves to flow gaseous fuel into the reference chamber, and then controlling the valves to exhaust the gaseous fuel from the reference chamber, for example to a fuel vapor storage canister.

Abstract: Methods and systems are provided for purging condensate from a charge air cooler. In response to condensate in a charge air cooler during a tip-in, airflow is increased at a controlled rate to the intake manifold, purging condensate from the charge air cooler.

Abstract: A turbocharger system includes a compressor that is connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine, an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine, a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve, a shutoff valve disposed in the branch line to selectively open/close the branch line, and an engine control unit controlling the operation of the shutoff valve.

Abstract: A method for operating a fuel system is disclosed. The method includes sequentially purging fuel vapors from each of a plurality of regions of a canister. Purging a region includes opening an air inlet valve associated with that region and maintaining air inlet valves associated with each other region closed to direct fuel vapors to at least one purge outlet.

Abstract: Systems and methods for estimating catalyst transfer function gain are disclosed. In one example, an air-fuel ratio forcing function is applied to a catalyst. Air-fuel ratios upstream and downstream of the catalyst are manipulated to determine a transfer function gain of the catalyst. The transfer function gain may be a basis for indicating the presence or absence of catalyst degradation.

Abstract: An apparatus for dithering fuel into an internal combustion engine includes a turbine that is powered by the internal combustion engine and a first fuel injector that injects a first fuel into an air stream to create a fuel/air stream. The apparatus also includes an air/fuel compressor that provides a compressed fuel/air stream to the internal combustion engine. The air/fuel compressor is powered by the turbine, and the air/fuel compressor compresses the fuel/air stream to create the compressed fuel/air stream. Additionally, the apparatus includes a second fuel injector that injects a second fuel into the compressed fuel/air stream prior to the compressed fuel/air stream entering the engine and after the compressed fuel/air stream exits the air/fuel compressor.

Abstract: A method for regulating HCCI combustion of fuel in a reactor of an internal combustion engine is described in which a multivariable regulation is used, manipulated variable changes ?uk for the instantaneous regulating cycle k being determined on the basis of at least system deviations ?xk-1 and manipulated variable changes ?uk-1 of a preceding regulating cycle k?1.

Abstract: An output control device for an internal combustion engine mounted on an electrically powered vehicle has a power generator driven by the engine, a drive battery that saves a power generated by the power generator and detects an SOC value of a power saving state, and a drive motor that propels a vehicle by using the power generated by the power generator or the power saved in the drive battery, and controls an output of the engine at a time of power generation of the power generator. The output control device sets an engine output determination value corresponding to a boundary at which an operation state of the engine shifts from stoichiometric operation to enriched operation, and limits an output of the engine to equal to or less than the engine output determination value in correspondence with the detected SOC value of the drive battery.

Abstract: A system includes a reciprocating engine having a cylinder liner and a piston disposed within the cylinder liner. The cylinder liner includes an inner wall and extends around a cavity. The inner wall includes a first axial end, a second axial end, a piston travel portion, and a top portion. The top portion is nearer to the first axial end of the cylinder liner than to the second axial end of the cylinder liner. The top portion has a first surface finish with a first roughness average (Ra1) greater than approximately 2 ?m and a total waviness (Wt) less than approximately 0.1 mm. The piston is configured to move in a reciprocating manner within the cylinder liner. The piston includes a top land configured to be radially opposite the top portion of the inner wall of the cylinder liner when the piston is at a top dead center position.