Abstract: The present disclosure relates to a coolant circuit (1) for a multi-cylinder internal combustion engine (3). The coolant circuit (1) having a plurality of coolant passages (10-1, 10-2, 10-3). A coolant distribution chamber (11) is provided in the coolant circuit (1). The coolant distribution chamber (11) has opposing first and second walls (12, 13) and a sidewall (14) extending between said first and second walls (12, 13). A coolant inlet (15) is disposed in the first wall (12) and a plurality of coolant outlets (17-1, 17-2, 17-3) are disposed in the sidewall (14). The coolant outlets (17-1, 17-2, 17-3) are each connected to a respective one of said coolant passages (10-1, 10-2, 10-3). A guide (18) is disposed in the coolant distribution chamber (11) for guiding coolant introduced into the coolant distribution chamber (11) through the coolant inlet (15) outwardly towards said coolant outlets (17-1, 17-2, 17-3). The coolant distribution chamber (11) may comprise a toroidal chamber.

Abstract: The vehicle front structure includes a radiator located in a vehicle front so that air passes through a vehicle rear, a radiator fan located in the vehicle rear of the radiator so as to generate an air flow flowing from the vehicle front to the radiator, an engine located in the vehicle rear of the radiator fan, and an engine soundproof cover having a front cover portion for covering a portion of a front surface of the engine, and guiding the air passing through the radiator fan to flow upward of the engine by using the front cover portion.

Abstract: A cooling system of an internal combustion engine includes a plurality of components in the form of heat sources, coolant pumps, actuator devices, and temperature sensors that are fluidically connected to one another via coolant lines, wherein a plurality of cooling circuits, each including at least one of the various components, is formed. In addition, a control device is provided that is in signal-conducting connection with at least one of the temperature sensors, with at least one of the coolant pumps, and with at least one of the actuator devices.

Abstract: A heat exchanger includes a drain assembly having a housing and a drain plug. The drain plug is movably disposed within the housing to extend along the same direction as a drain passage formed in the housing. The drain plug is movable along that same direction to selectively open or close the drain passage. Accordingly, the heat exchanger may be drained with a controllable directional flow.

Abstract: Methods and systems are provided for variable thermal capacity charge air cooler (VTC-CAC). In one example, the VTC-CAC includes a plurality of cooling channels and an integrated bypass that diverts air around the cooling channels. Division of boosted intake air between the cooling channels and the bypass is regulated by a positioning of dual-gate mechanism that is adjusted in response to manifold charge temperature.

Abstract: A turbocharger for an internal combustion engine has a bearing housing, in which a rotor shaft is mounted in a rotatable manner. A compressor having a compressor wheel is arranged for conjoint rotation on the rotor shaft. A fresh air supply channel conducts a fresh air mass flow to the compressor wheel. The fresh air supply channel has a first flow cross section upstream of the compressor wheel. A flow control device is provided and is adjustable between an open position, in which the first flow cross section is opened up, and a closed position, in which the first flow cross section is reduced to a second flow cross section. The flow control device is fluidically coupled to a compressor channel of the compressor downstream of the compressor wheel, such that the flow control device is adjusted in a manner dependent on a pressure prevailing in the compressor channel.

Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism operable to move between an open position and a closed position. The inlet-adjustment mechanism includes a plurality of blades disposed about the compressor air inlet and located within an annular space within the air inlet wall. The blades are pivotable about respective pivot points such that the blades extend radially inward from the annular space into the air inlet when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. The blades include lever arms that engage the outer periphery of a rotatable unison ring that is linked to a linear actuator for rotating the unison ring so as to pivot the blades.

Abstract: A turbocharger includes a variable vane mechanism includes a unison ring and at least one bearing member that is fixed to the unison ring. The bearing member includes a bearing surface that supports rotation of the unison ring within the variable vane mechanism. The unison ring and the at least one bearing member have independent material characteristics.

Abstract: A waste heat recovery system for recovering waste heat of in internal combustion engine includes a turbine expander. The turbine expander includes a turbine blade, a shaft coupled to and rotatable by the turbine blade, and a nozzle assembly. The nozzle assembly includes a nozzle block disposed about the shaft and adjacent the turbine blade, a first nozzle component coupled to the nozzle block, and a second nozzle component coupled to the nozzle block. The first nozzle component defines a first nozzle having a first geometrical configuration. The second nozzle component defines a second nozzle having a second geometrical configuration that is different from the first geometrical configuration. The waste heat recovery system also includes a flow control device in fluid communication with the turbine expander. The waste heat recovery system further includes a controller in communication with the flow control device.

Abstract: A reciprocating-piston machine, in particular an internal combustion engine with a variable compression ratio, having a length adjustment device arranged in a connecting rod and can be activated by way of a switching unit arranged in the connecting rod, wherein an actuating mechanism is operatively connected to the switching unit in the region of a connecting rod bearing in order to introduce a switching pulse into the connecting rod. The actuating mechanism has a transmission means arranged in the region of the connecting rod bearing, and the switching unit has at least one switching valve which is arranged in the connecting rod body of the connecting rod and the valve body, which can be displaced substantially in the direction of the rotational axis of the connecting rod bearing, and can be deflected out of a dosed position into an open position by way of the transmission means.

Abstract: A gear train connecting two crankshafts in an opposed-piston engine includes a first crankshaft coupled to first pistons and a second crankshaft coupled to second pistons which are disposed in opposition to the first pistons in cylinders of the engine, a respective crank gear attached to each crankshaft, and an idler gear connecting the crank gears. The gear train comprises a three-gear system that is configured to minimize the side loads on the crankshafts, as well as on an idler gear post.

Abstract: The present invention relates to the use of a gas delivery system for cleaning an internal combustion engine. The gas delivery system is adapted to deliver hydrogen gas, and optionally oxygen gas, into the air intake duct of the internal combustion engine when the engine operates idle. The hydrogen gas is delivered at an amount of at least 15 liters per minute, and the hydrogen gas, and optionally the oxygen gas, is continuously produced by electrolysis of water.

Abstract: An auxetic bi-stable structure that comprises an auxetic curved shell movable between a first and a second stable position, and a rigid element. At least part of the surface of the auxetic curved shell is joined to the rigid element such that the curved shell is movable with respect to the rigid element between the first and second stable positions.

Abstract: The present disclosure relates generally to a manifold including a plurality of manifold channels disposed therethrough, each manifold channel including a manifold channel opening, and a seal plate, including a plurality of seal plate apertures disposed thereon, operably coupled to the manifold, wherein the seal plate includes at least one seal plate channel extending between at least two of the plurality of seal plate apertures.

Abstract: A turbocharger having a turbo vane, an air compressor, and a hollow shaft integrally formed with one of the turbo vane and the air compressor. The turbo vane has a plurality of turbo blades extending from a hollow, central turbo hub. The air compressor has a plurality of compressor blades extending from a hollow, central compressor hub. The hollow shaft is in fluid communication with the air compressor so as to communicate cool air from the air compressor to the turbo vane.

Abstract: An aeroderivative gas turbine provided with a casing, a compressor including a rotor mounted on a generator shaft supported for rotation in the casing, a high pressure turbine arranged in the casing and with a rotor mounted on the generator shaft for co-rotation with the compressor rotor, a combustor, a power turbine arranged in the casing and including a rotor mounted on a turbine shaft to drive a load, wherein a thermal insulation coating is present to reduce heat dispersion through the casing.

Abstract: An acoustic attenuation panel for a propulsion assembly includes an acoustic front skin having perforations, and a central structure formed from partitions arranged perpendicularly in order to make up cells, wherein the front skin and the central structure form the panel which is made as a single piece and is provided for directly covering a surface of an element of the propulsion assembly forming a rear skin which closes the cells of the central structure at the rear.

Abstract: A method of controlling at least a part of a start-up or re-light process of a gas turbine engine, the method comprising: controlling rotation of a low pressure compressor using a first electrical machine to increase angular velocity of the low pressure compressor; and controlling rotation of a high pressure compressor using a second electrical machine to restrict angular velocity of the high pressure compressor while the angular velocity of the low pressure compressor is increased.

Abstract: A diffuser for a gas turbine engine includes an annular fluid passage that fluidly connects a diffuser inlet to a diffuser outlet. A plurality of airfoils are located in the annular fluid passage and each has a collection surface.

Abstract: Hybrid turbine engines and methods of operating the same are disclosed herein. The hybrid turbine engines include a first thrust-generating device that includes a turbine with a turbine rotary shaft and a clutch, which includes a clutch input, which is operatively coupled to the turbine rotary shaft, and a clutch output. The clutch defines an engaged state and a disengaged state. The hybrid turbine engines also include a rotary electric machine including a machine rotary shaft that is operatively coupled to the clutch output, a second thrust-generating device that is operatively coupled to the machine rotary shaft, and an electric power system. The rotary electric machine is configured to selectively receive an electric power output from the electric power system, such as to selectively produce additional thrust, and to selectively receive in an input torque from the machine rotary shaft, such as to selectively produce additional electric power.

Abstract: A fuel assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a fuel valve that meters flow of fluid between a combustor and a fuel supply, and a controller in communication with the fuel assembly. The controller is programmed to receive data corresponding to a present rotational speed of a gas turbine engine component and data corresponding to at least one present flight condition, and is programmed to cause a flow rate from the fuel valve to change in response to determining that a rate of change in an acceleration rate relating to the present rotational speed meets at least one predetermined threshold. At least one predetermined threshold relates to an engine light-off event of the combustor and is based upon the at least one present flight condition.

Abstract: A gas turbine engine fuel additive control system includes a sensor positioned to sense an operational parameter of a gas turbine engine that includes a compressor section, a combustion section, and a turbine section. The system also includes a control valve positioned to supply a fuel additive to a fuel line. The fuel line contains fuel for supply to the combustion section of the gas turbine engine to which the fuel additive is selectively added by injection into the fuel line. The system also includes a controller configured to monitor the operational parameter in real time during operation of the gas turbine engine and adjust the control valve to dynamically modulate an amount of the fuel additive being supplied in the fuel in accordance with operation of the gas turbine engine.

Abstract: A valve device includes a valve housing, a valve member, a limiter portion and a contact portion. The valve housing includes an upstream-side flow passage, which is communicated with an intake passage, a receiving space, which is communicated with an EGR passage, a valve chamber, which communicates between the upstream-side flow passage and the receiving space, and a valve-housing-side seal portion, which is placed around an opening that communicates between the upstream-side flow passage and the receiving space. The valve member includes a valve-member-side seal portion, which blocks communication between the intake passage and the EGR passage when the valve-member-side seal portion contacts the valve-housing-side seal portion. The rotation of the valve member is limited when the contact portion contacts the limiter portion.

Abstract: To provide a controller and a control method for an internal combustion engine capable of calculating a target value of controlled variable of internal combustion engine which realizes the target torque, while reducing the number of calculations using a torque characteristics function. A controller and a control method for an internal combustion engine calculates ignition sample numbers of ignition corresponding torques corresponding to the respective ignition sample numbers of ignition timings, by using a torque characteristics function relationship in which a relationship between driving condition and output torque is preliminarily set; and calculates an ignition torque approximated curve approximating a relationship between the ignition sample numbers of the ignition timings and the ignition sample numbers of the ignition corresponding torques; and calculates a target ignition timing corresponding to the target torque.

Abstract: A vehicle monitoring system for turning off an idling engine comprises a vehicle speed sensor configured to detect a lack of motion, or “stationary status” of a vehicle and emit a parameter correlated to the motion status of the vehicle, a transmission status detector configured to detect a transmission status of the vehicle, an alerting device capable of warning other drivers of a stationary status of the vehicle and a control device. The control device is coupled to the vehicle speed sensor, the transmission status detector and the alerting device, wherein the vehicle speed sensor and the transmission status detector send a signal to the control device and the control device operates in a manner dependent on the motion status of the vehicle and the transmission status of the vehicle.

Abstract: A liquefied gas fuel feeding system can include a liquefied gas container configured to store liquefied gas and gaseous gas in cryogenic circumstances, a first fuel passage opening into an ullage space of the gas, a second fuel passage opening into a bottom section of the gas and provided with a controllable pump, at least two fuel delivery passages each configured to convey gas to a single gas consumer of at least two gas consumers, and a valve assembly configured to connect alternatively the first fuel passage or the second fuel passage to each one of the at least two fuel delivery passages.

Abstract: To provide a controller and a control method for an internal combustion engine capable of performing automatic adaptation of the optimal ignition timing or the optimal control value of the combustion operation mechanism during operating. A controller and a control method for an internal combustion engine changes setting values of a torque characteristics function so that an output torque calculated using the torque characteristics function approaches an output torque calculated based on an actual value of internal cylinder pressure; calculates a plurality of output torques corresponding to respective plurality of combustion control states using the torque characteristics function; and changes setting values of a combustion control target setting function so that a target value of combustion control state calculated using the combustion control target setting function approaches a maximum torque combustion control state where the output torque becomes the maximum.

Abstract: Methods and systems are provided for exhaust heat recovery and EGR cooling via a single heat exchanger. In one example, a method may include selecting a specific mode of operation of an engine exhaust system with the heat exchanger based on engine operating conditions and an estimated fuel efficacy factor. The fuel efficiency factor may take into account fuel efficacy benefits from EGR and exhaust heat recovery.

Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.

Abstract: A method for heating a first exhaust gas purification device and a second exhaust gas purification device of an exhaust system of an internal combustion engine of a motor vehicle, has the following steps: determining a first actual temperature of the first exhaust gas purification device and a second actual temperature of the second exhaust gas purification device, determining a first setpoint temperature of the first exhaust gas purification device and a second setpoint temperature of the second exhaust gas purification device by means of a heating coordination device, determining a first heat demand of the first exhaust gas purification device and a second heat demand of the second exhaust gas purification device, creating a heating specification for the first exhaust gas purification device and for the second exhaust gas purification device, relaying the heating specification to an engine control device of the motor vehicle, and controlling the internal combustion engine by means of the engine control devi

Abstract: Systems and methods for determining operation of a cylinder deactivating/reactivating device are disclosed. In one example, a warm engine is rotated without being supplied fuel to determine the presence or absence of valve actuator degradation. Degraded valve actuators may be determined when there is a lack of a temperature rise in the engine exhaust system.

Abstract: Apparatuses and methods for storing redundancy repair information for memories are disclosed. An example apparatus includes a fuse array, a repair plane, and a decode logic and control circuit. The fuse array stores repair information that includes repair commands and load repair addresses. The load repair addresses include a respective repair address. The repair plane includes a block of memory and repair logic. The block of memory includes a plurality of redundant memory and the repair logic includes a plurality of repair blocks. Each repair block is associated with a respective one of the plurality of redundant memory and each repair block of the plurality of repair blocks stores a repair address. The decode logic and control circuit reads the repair information and decodes the repair commands, and loads repair addresses into the plurality of repair blocks based at least in part on the decoded repair commands.

Abstract: A drive system for driving a motor vehicle has an internal combustion engine and an operating mode coordination device for determining and controlling the operating mode of the internal combustion engine. The drive system has a function coordination device for coordinating secondary functions of the drive system, the function coordination device being designed for generating, based on the coordination of the secondary functions, an operating mode request for the operating mode coordination device for controlling the operating mode of the internal combustion engine, and transmitting it to the operating mode coordination device. The invention further relates to a motor vehicle having a drive system, and a method for operating a drive system of a motor vehicle.

Abstract: Disclosed is a method for controlling a fuel pump for a motor vehicle, including determining if a set amount of fuel to be compressed is less than the minimum volume that can be delivered by the pump and, if this is the case, determining a new set amount of fuel to be compressed equal to the product of a number of compressions of a volume equal to the set amount of fuel to be compressed required to achieve at least the minimum volume that can be delivered and the set amount of fuel to be compressed; transmitting the new set amount of fuel to be compressed to the fuel pump; and subsequently disabling the fuel pump for a number of occurrences of the set amount of fuel equal to the number of compressions of a volume equal to the set amount of fuel to be compressed.

Abstract: An apparatus obtains waveforms representing measurements of a physical characteristic of a machine's operation and performance results of the machine corresponding respectively to the waveforms, each of the performance results being indicative of the machine's performance under conditions at which the measurement represented by the corresponding waveform was made. The apparatus calculates, for each of at least interval associated with each of the waveforms, an influence value that represents a degree of influence of the waveforms on the performance results over the interval.

Abstract: A piston assembly for a two-stroke internal combustion engine includes an upper part joined to a lower part by hybrid induction welding. The upper part includes an upper and lower walls radially spacing inner and outer walls to present an outer cooling gallery therebetween. The lower wall includes first portions extending radially inwardly from the outer wall to the inner wall above the skirt sections and second portions extending radially inwardly from the outer wall to the inner wall above the pin bosses. The first portions extend oblique to the center axis and undulate between the inner and outer walls to reduce the stiffness of the skirt sections. The second portions of the lower wall extend perpendicular to the center axis. Skirt sections of the piston include a lower portion with a greater radial thickness and containing ring grooves.

Abstract: A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.

Abstract: An engine is described having a crankcase, a liner and a head assembly. The crankcase is split along a plane defining a two part crankcase, where fluid passages are passing through only one of the crankcase portions, so as to not require crossing the split line. A connecting rod also includes a tapered end, and the piston has a complementary carrier receiving the connecting rod.

Abstract: An exemplary engine noise reduction system, can be provided, which can include a noise reduction fluid source, and a microjet(s) placed at an axial location downstream from a nozzle exit of an engine and configured to asymmetrically inject a noise reduction fluid from the noise reduction fluid source into a jet flow of the engine. The engine can be a jet engine. The microjet(s) can include four microjets, which can be about 90 degrees apart in a plane at the axial location. The four microjets can be asymmetric microjets. The microjet(s) can be configured to inject the noise reduction fluid in a direction that is normal with respect to the jet flow.

Abstract: A sound-proofing covering comprising a cellular structure, each cell of which comprises a duct extending at least between the first face and the second face of the covering. The duct is formed between an outer wall and an inner wall of the cell and has a restriction of its cross section. The outer and inner walls have rounded forms, without sharp edges. The cell comprises a cavity in which the duct emerges. Thus, each cell forms a resonator comprising a neck formed by the duct and the cavity. Each cell is conformed such that the duct and the cavity are formed on either side of the inner wall. Such a covering is particularly suitable for reducing acoustic waves in aircraft engine plant nacelles, particularly in the low frequencies.

Abstract: A fuel enrichment simple starting device for a carburetor includes a fuel cup and a main body, which includes a mixing room, a metering room, a fuel chamber separated into a fuel pumping chamber and a fuel enrichment chamber, a fuel inputting passage, a fuel passage, a starting passage and a fuel returning passage. The fuel pumping chamber and the fuel enrichment chamber are in communication with the fuel cup. One end of the fuel inputting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the metering room. One end of the starting passage is in communication with the fuel enrichment chamber, and the other end thereof is in communication with the mixing room. One end of the fuel returning passage is in communication with the fuel cup, and the other end thereof is in communication with a fuel tank.

Abstract: The air handling system of an opposed-piston engine is equipped with an externally-assisted pumping element such as an electrically-assisted compressor, an electrically-assisted supercharger, or an electrically-assisted turbocharger.

Abstract: A sieve seal as a component embodied of one piece, consisting of a seal, which holds a sieve body so that it is enclosed over an inner free cross-sectional area. The present invention also relates to a method for sustained operation of a sieve seal of this kind. In order to provide a remedy in the event of a clogging and/or soot formation and an accumulation of deposits in the sieve seal, it is proposed that the sieve body is embodied for an electric current to flow through at least part of it in such a way that a temperature that is sufficient to eliminate at least significant parts of the deposits is achieved or a corresponding temperature threshold is exceeded.

Abstract: An apparatus and a method are provided for an aircharger air intake system for filtering and conducting an airstream to an air intake of an engine. The aircharger air intake system includes an air filter comprising a filter medium configured to entrap particulates flowing within the airstream. An air box comprising one or more sidewalls and a mount wall is configured to support the air filter within an engine bay. The air box is configured to be mounted, or fastened, onto the engine. An intake tube is coupled with the air filter and configured to conduct the airstream to the air intake of the engine. The intake tube is configured to be coupled with an air temperature sensor or a mass air sensor of the engine. An adapter is configured to couple the intake tube with the air intake.

Abstract: In an air cleaner, an air cleaner case having an upper opening which opens upward is formed. The air cleaner case is formed of a front wall, a rear fender, and right and left side covers. The upper opening is closed by a seat. A sound absorbing member is bonded to a bottom plate of the seat and housed in an air cleaner space. The intake noise in the air cleaner is absorbed by the sound absorbing member.

Abstract: To obtain an end cap that enables a brazing material ring to be appropriately placed and brazing to be reliably performed when inserting and placing an insertion part of the end cap in an end part of a rail body and securing the end cap by brazing it with the brazing material ring and, also, that is unlikely to result in a broken rail body when internal pressure is applied. An end cap to be inserted into and placed inside an end part of a rail body 2 and secured to an inner circumference of the rail body 2 by brazing, wherein an outer circumference of an insertion part 3 for insertion into the rail body 2 comprises an engagement groove 10 that is composed of a pair of side surfaces 11, 12 and a bottom surface 13 and that is capable of engagement with a brazing material ring 15.

Abstract: A solenoid-actuated valve includes a solenoid portion extending along a longitudinal axis. The solenoid portion includes a solenoid housing defining a solenoid interior, a coil, and an armature, with the armature being moveable along the longitudinal axis in response to energization of the coil. The solenoid-actuated valve also includes a valve portion coupled to the solenoid portion. The valve portion includes a valve member moveable by the armature. The solenoid-actuated valve further includes a valve filter disposed in the solenoid interior and/or coupled to the solenoid housing and configured to separate the solenoid interior from a hydraulic circuit when the valve portion is coupled to a valve housing for allowing fluid to flow into and out of the solenoid interior upon actuation of the armature.

Abstract: Systems and methods for operating an engine that may be automatically stopped and started responsive to vehicle operating conditions are disclosed. In one example, the engine may be automatically started after it has been automatically stopped in response to a driver applying a brake pedal while the vehicle's transmission is engaged in park. The engine may be started to increase transmission pump pressure prior to engaging a gear to reduce vehicle launch time.

Abstract: An improved internal combustion engine utilizes at least one orbital pin eccentrically offset from an orbital shaft, rotationally linked to the main shaft via an epicyclic gear set, such that the piston and connecting rod, influenced by the force from thermodynamic process, transfers a straight linear force to the orbital epicyclic pin further via the flying crank arm to the main shaft. This results in an extended but mechanically adjustable constant volume combustion period up to 60° with improved piston to crank relationship throughout main conversion angle. The extended dwell duration and new piston to crank relationship at TDC and BDC improve the engine operation as well as its scavenging efficiency and cleanliness.

Abstract: The application relates to unidirectional hydrokinetic turbines having an improved flow acceleration system that uses asymmetrical hydrofoil shapes on some or all of the key components of the turbine. These components that may be hydrofoil shaped include, e.g., the rotor blades (34), the center hub (36), the rotor blade shroud (38), the accelerator shroud (20), annular diffuser(s) (40), the wildlife and debris excluder (10, 18) and the tail rudder (60). The fabrication method designs various components to cooperate in optimizing the extraction of energy, while other components reduce or eliminate turbulence that could negatively affect other component(s).