Abstract: In a compressor of a turbocharger of an internal combustion engine comprising a housing with an inflow channel; a compressor impeller arranged in the inflow channel; and a bypass channel which has a first flow opening upstream of the compressor impeller inlet, a second flow opening downstream of the compressor impeller inlet and an axial annular chamber which connects the first and the second flow openings. An axial vane structure is provided in the axial annular chamber of the bypass channel, which imparts a swirl direction corresponding to that of the air mass flow in the inflow channel to the air mass flowing through the bypass channel from the second to the first flow opening.

Abstract: An engine assembly includes an engine structure and an intake assembly. The engine structure defines a first cylinder, a second cylinder, a first intake port in communication with the first cylinder, and a second intake port in communication with the second cylinder. The intake assembly includes a first throttle valve, a second throttle valve and a boost mechanism. The first throttle valve is in communication with the first and second intake ports. The second throttle valve is in communication with an air source and the first throttle valve and located in a series flow arrangement between the air source and the first throttle valve. The boost mechanism is in communication with the air source and the first throttle valve and located in a series flow arrangement between the air source and the first throttle valve.

Abstract: Exhaust manifold of a turbo-supercharged reciprocating engine with any number of cylinders ranging from 2 to 6 and equipped with an EGR system which comprises: a) an outer casing (21) which includes flanges (23, 25) for effecting joining, respectively, to the cylinder head (13) of the engine and the turbine (15) and an opening towards an EGR outlet duct (27) and an inner wall (31) with low thermal inertia defining a regulating chamber (33) for the exhaust gases introduced into it, after passing through a particle filter (45), via a plurality of orifices (35) located in the inner wall (31); b) inner branches (41) for entry of the exhaust gases, situated opposite the exhaust pipes (17); c) an outlet duct (59) for conveying the exhaust gases to the turbine (15), designed as an extension of the inner wall (31).

Abstract: A supercharged internal combustion engine in a motor vehicle includes a venting device for the crankcase of the internal combustion engine and a compressor for supercharging the internal combustion engine. A discharge opening for discharging the crankcase gas is provided upstream of the compressor and a sensor for determining the charge pressure of the compressor is provided downstream of the compressor. The discharge opening is connected to the crankcase by a first connection for the airflow, in particular a hose connection. In order to cost-effectively monitor the venting of the crankcase of the internal combustion engine, an opening, to which the charge pressure of the compressor is applied, is provided downstream of the compressor. The first connection for the airflow includes a closing device for closing the opening to which the charge pressure is applied, wherein the closing device closes the opening if the first connection is connected to the discharge opening.

Abstract: An exhaust-gas supply device (1) of a turbine wheel (2) of an exhaust-gas turbocharger (3), having a two-channel turbine housing (4), and an exhaust manifold (7) which can be connected to an internal combustion engine (8), which exhaust manifold (7) has a first manifold channel (9) which connects first cylinders (Z1, Z4) of the internal combustion engine (8) so as to form a first manifold exhaust-gas path length, and a second manifold channel (10) which connects second cylinders (Z2, Z3) so as to form a second manifold exhaust-gas path length, to generate virtually identical overall exhaust-gas path lengths of the two channels.

Abstract: The invention relates to a compressor wheel for a turbocharger, in particular in combination with a diesel engine, and to an exhaust gas turbocharger comprising such a compressor wheel.

Abstract: The invention relates to a drivetrain, in particular for motor vehicles, having an internal combustion engine, comprising an output shaft; having a turbocharger, comprising an exhaust gas turbine, which is situated in the exhaust gas stream of the internal combustion engine, and a compressor driven by the exhaust gas turbine, which is situated in an air channel leading to the internal combustion engine in order to compress air for the internal combustion engine; the exhaust gas turbine additionally having a drive connection to an auxiliary system or to the output shaft of the internal combustion engine or being switchable into such a connection, in order to transmit drive power alternately or simultaneously from the exhaust gas turbine to the compressor or the output shaft and the auxiliary system; and a hydrodynamic clutch being situated in the additionally provided drive connection, comprising a bladed primary wheel and a bladed secondary wheel, which implement a working chamber with one another, which i

Abstract: A method for operating a turbocharged engine is disclosed. In one example, an engine operation is adjusted in response to a turbocharger expansion ratio. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.

Abstract: Reciprocating internal combustion engine supercharged by a turbocharger of which the compressor (10) is driven by a turbine rotor (7) supplied with burnt gases on the entire periphery thereof by a single distribution volute (6), this engine comprising two cylinder groups purged by two exhaust collectors (3) giving respectively into one of two convergent nozzles (4) parallel to the inlet direction of the volute (6) of the turbine and of which the collars (8) are adjacent and have cross-sections that are equal to that of the inlet (5) of the volute (6), the nozzles (4) being carried out at the volute by a convergent conical channel (9) of which the length is between 3 and 8 times the inlet diameter of the volute.

Abstract: A hybrid engine having a gas turbine engine and an internal combustion engine, both engines driving a common drive shaft. The compressor delivers compressed air to the combustor and to an inlet of the internal combustion engine, the compressed air picks up heat from the internal combustion engine either from the combustion process or through a heat exchanger, and is delivered to the combustor. When the gas turbine engine is not operating by burning fuel, the heated compressed air from the internal combustion engine is used to maintain the shaft speed sufficient for starting the gas turbine engine without the need to bring the turbine engine up to speed prior to ignition. The apparatus and process of the present invention provides a hybrid engine that is light weight, fuel efficient, and with enough available power for high powered situations.

Abstract: In an internal combustion engine, fresh air is compressed by a pressure-wave supercharger. At least one operating parameter of the pressure-wave supercharger is controlled or regulated as a function of at least one actual operating variable of the internal combustion engine.

Abstract: This invention provides a compact, fuel-efficient internal combustion engine that can be used to provide rotating shaft output power to a wide variety of mobile and stationary applications. It is based on a two-stroke free-piston gas generator that implements the homogeneous charge compression ignition (HCCI) combustion principle for essentially constant-volume combustion, and it employs a variable piston stroke to maintain a high level of efficiency across a wide range of loads and speeds. A rotary device, which may be of either an aerodynamic or positive displacement type, converts the energetic gas stream to power at a rotating shaft.

Abstract: A flow regulator valve having multiple stages is described herein. The flow regulator valve provides a base amount of propane when the engine is idling and provides additional propane to the engine based on the engine's requirements.

Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2) having at least one exhaust-gas recirculation line (3) which enters via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4); and having a compressor (5); which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens via a compressor inlet (11), having a mixing device (18) for mixing recirculated exhaust gas and fresh air, with the mixing device (18) having at least two guide plates (21, 22) in the shape of truncated cone shell segments which are arranged radially offset with respect to one another and which delimit in each case one inflow gap (23, 24) at their longitudinal edges arranged offset with respect to one another.

Abstract: A turbocharger using a high speed rolling element bearing system is improved in desired speed and life by providing an insulating spacer, with a thermal conductivity lower than that of the material in the inner race of the REB, between the turbine-end of the inner race of the bearing system and the compressor-end face of the piston ring boss to impede the flow of heat from the turbine wheel to the inner race of the rolling element bearing.

Abstract: A modular exhaust gas assembly includes a turbocharger housing having an exhaust flange and a bearing flange receptacle, and a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine. Each turbine scroll has an inlet zone and is connected to the bearing flange receptacle via a selected one of a plurality of different bearing flanges and to the exhaust flange via a selected one of a plurality of different exhaust links. The inlet zone of each turbine scroll is configured to complement a contour of an outlet zone of a standard manifold so that the turbine scrolls are selectively connectable via their inlet zone to the manifold to suit the engine power at hand.

Abstract: Exhaust manifold of a turbo-supercharged reciprocating engine with any number of cylinders ranging from 2 to 6 and equipped with an EGR system which comprises: a) an outer casing (21) which includes flanges (23, 25) for effecting joining, respectively, to the cylinder head (13) of the engine and the turbine (15) and an opening towards an EGR outlet duct (27) and an inner wall (31) with low thermal inertia defining a regulating chamber (33) for the exhaust gases introduced into it, after passing through a particle filter (45), via a plurality of orifices (35) located in the inner wall (31); b) inner branches (41) for entry of the exhaust gases, situated opposite the exhaust pipes (17); c) an outlet duct (59) for conveying the exhaust gases to the turbine (15), designed as an extension of the inner wall (31).

Abstract: A hybrid turbo transmission for reduced energy consumption is disclosed. A hybrid turbo transmission configured as a multi-purpose unit (MPU). The MPU recovers energy from the cooling system, exhaust system, ram pressure and the breaking system. The MPU unit is an automatic transmission, supercharger, air compressor for other uses, and starter for the engine using a multi-purpose unit that will eliminate the need for a torque converter or clutch, flywheel, catalytic converter, starter and supercharger. The MPU reduces pollution to near zero and reduces the aerodynamic drag coefficient on the vehicle. The MPU uses two or more in-line compressors to transfer power from the power source, such as an internal combustion engine (ICE) to a turbine or multi-stage turbine that acts as an automatic transmission. The hybrid turbo transmission system uses plug-in power as a second source of power.

Abstract: The invention is intended to optimize the recovery of the residual energy contained in the exhaust gases of an internal combustion piston engine by means of a turbocharger group, in which each cylinder (1) from which the combustion gases escape through the exhaust pipe (5) is equipped with a turbine (7), and the volume (5) between the exhaust valve (3) and the inlet of the turbine (7), detrimental to the efficiency thereof, is minimized by the attachment of the turbine directly on the cylinder head of the engine without the intermediary of a collector and, the counter-pressure acting on the piston of the cylinder (1) during its exhaust upstroke is minimized owing to an adjustment of the turbine pressure by means of an additional exhaust valve (4), called a “dynamic discharge valve”, optionally equipped with a downstream throttle valve (8) in order to continuously adjust the corresponding flow rate and, consequently, the pressure of the turbine unless the control of the dynamic discharge valve (4) is not varia

Abstract: In a gas inlet casing of a turbocharger that compresses combustion air for an internal combustion engine and forcibly feeds high-density air into a combustion chamber of the internal combustion engine, a space formed between an inner casing and an outer casing is configured to serve as a first exhaust gas channel for guiding exhaust gas discharged from the internal combustion engine to the outer periphery side of a turbine nozzle. A second exhaust gas channel for guiding exhaust gas that branches at an intermediate point in the first exhaust gas channel to the inner periphery side of the turbine nozzle is formed at the inner periphery side of the inner casing. An intermediate portion of the first exhaust gas channel and a gas inlet of the second exhaust gas channel are communicated through an exhaust gas pipe, and an on/off valve is connected at an intermediate point thereof.

Abstract: An engine assembly comprising a cylinder head, turbocharger in fluid communication with the cylinder head and exhaust conduit in fluid communication with the turbocharger and method of making the assembly using a single human assembler includes: mounting the turbine to the cylinder head; using a first assembly aid to form a slidable joint between the exhaust conduit and head; using a second assembly aid to form a movable joint between the turbine and exhaust conduit and align the turbine outlet flange and exhaust conduit inlet flange; using a third assembly aid to pilotingly engage the flanges; disposing a clamp about the turbine outlet flange and the exhaust conduit inlet flange; tightening the second assembly aid sufficiently to form an immovable joint; tightening the clamp to form a sealed joint between the flanges; and tightening the first assembly aid to form a fixed joint.

Abstract: A supercharger has an inner wall defining an inner cavity for receiving lobed rotors for rotation therein, a low-pressure inlet and a high-pressure outlet. A sound attenuator is associated with the housing and located adjacent to the high-pressure outlet. The sound attenuator has a tuner chamber and circumferentially spaced tuner ports fluidly connecting the tuner chamber with the internal cavity of the housing to define a Helmholtz resonator. A land is defined between the circumferentially spaced tuner ports such that the high-pressure outlet and low-pressure inner chambers defined between the rotor lobes and the inner wall are fluidly connected when the rotor lobes are in alignment with the land to reduce the pressure differential between the high-pressure outlet and the low-pressure inner chambers.

Abstract: The present invention relates mainly to an optimized turbocompressor for engines mounted transversely, notably for in-line four-cylinder engines mounted transversely. The main subject of the invention is a turbocompressor (1?) comprising a turbine (3?) and coupling means (5?) and a compressor (7?), characterized in that, when looking in the direction (X-X?) from the compressor (7?) toward the turbine (3?) the rotating parts of the compressor rotate in the positive trigonometric direction. Another subject of the invention is a turbocompressor (1?) comprising a turbine (3?), a compressor (7?), means of coupling the turbine (3?) and the compressor (7?), characterized in that the rotating parts of the turbine when looking in the direction (X-X?) from the compressor (7?) toward the turbine (3?) rotate in the positive trigonometric direction. The invention notably applies to the automotive industry. The invention applies mainly to the internal combustion engine intake turbocompressor industry.

Abstract: One exemplary embodiment may include an engine breathing system including an exhaust driven auxiliary air pump to flow air directly into the exhaust side of the breathing system.

Abstract: A power assembly includes an internal combustion engine including an air intake line and an exhaust gas line having at least one heat exchanger. The power assembly further includes a Brayton cycle system capable of providing additional power to the main internal combustion engine and that includes a gas compressor, a fuel burning heater and a turbine linked to the compressor so that air is drawn into the compressor where it is pressurized, the pressurized air is further heated by flowing through at least one heat exchanger where it exchanges heat with exhaust gases from the main internal combustion engine, the heated and pressurized air is further heated by the fuel burning heater and is thereafter expanded through the turbine where a first fraction of the work extracted by the turbine is used to drive the compressor and a second fraction of the work extracted by the turbine is used to bring additional energy.

Abstract: An engine includes two or more serially connected air compressors coupled via a crankshaft to an expander piston and cylinder combination. An intercooler device is placed between the air compressors. Compressed air from the compressors flows through a heat exchanger where it is heated by the expander exhaust gas prior to its introduction into the expander cylinder by way of an inlet valve. Fuel is mixed with the compressed air near the inlet valve in an amount suitable to allow for combustion.

Abstract: An exhaust aftertreatment system for an engine is disclosed. The exhaust aftertreatment system including a first exhaust passage, an SCR catalyst disposed in the first exhaust passage, a second exhaust passage parallel with the first exhaust passage and fluidly coupled to the first exhaust passage upstream of the SCR catalyst and a container disposed in the second exhaust passage, the container configured to hold a volume of urea and to direct exhaust from the second exhaust passage through the volume of urea in the container.

Abstract: An inlet air booster system for increasing turbocharger response time by utilizing compressed air from an engine driven compressor. Compressed air used to supply air for air braking system is channeled into an air tank to provide a boost of compressed air into the intake manifold. The inlet air booster system comprises an air booster ring disposed around a manifold inlet supply pipe, an air supply source, and a control valve. Compressed air from the air tank flows along a compressed air supply pipe regulated by a control valve, which in its open position allows air flow to the air booster ring. The air booster ring comprises an air chamber and a plurality of nozzles angled towards the direction of intake gas flow to provide a burst of compressed air into the intake manifold. The angled flow of compressed air enhances the flow of intake air into the intake manifold.

Abstract: The present invention relates to a turbocharger assembly lock comprising a retaining ring partially disposed in a circumferential groove of a first turbocharger stage component and partially in a circumferential groove of a second turbocharger stage component so that the turbocharger stages are securely attached to each other.

Abstract: A method and apparatus for the capture of wasted heat energy from an internal combustion engine for conversion of water from a liquid state into a gaseous state, the resulting pressure of which being used to drive a steam-driven air compressor, before being directed to a radiator-type condenser for conversion of water from a gaseous state back into a liquid state for reuse. The compressed air from the said steam-driven air compressor is directed to the cylinder head(s) upon the engine the heat is derived from, via an automatic regulator, where air is directed into multiple cylinders of the said internal combustion engine to assist in the propulsion of the pistons within the said cylinders and to assist in the efficiency of ignition of fuel molecules, both attributes of which are in the interest of greater efficiency in fuel consumption of the vehicle the apparatus is situated in.

Abstract: The invention relates to a turbine, in particular an exhaust gas power turbine for a turbo-compound system, comprising a drive shaft, which carries a turbine wheel on its first end or in the area of the first end, which is intended for positioning in an exhaust gas stream of an internal combustion engine or another medium stream containing thermal and/or pressure energy, in order to convert exhaust gas energy or energy of the medium stream into drive power, and which carries a gearwheel on its second end or in the area of the second end, which is designed for the purpose of being placed in a drive connection with the crankshaft of the internal combustion engine, the drive shaft being mounted, at least in the area of its second end adjacent to the gearwheel, using a floating bush in a housing, which forms an outer oil-filled bearing gap in relation to the housing and an inner oil-filled bearing gap in relation to the drive shaft and is relatively rotatable in relation to the housing and the drive shaft.

Abstract: A boost system for an engine is described. In one example, the boost system provides air to an engine cylinder via a converging-diverging valve seat. The system can reduce turbocharger lag during some conditions.

Abstract: This is a novel two-stroke engine design which achieves the best properties of both the two and the four-stroke types of engine. The design has a simple and effective lubrication system, a clean exhaust system, and an increased power to displacement ratio.

Abstract: A reductant delivery system for an exhaust treatment system of an internal combustion engine is disclosed. The system includes a turbocharger fluidly coupled to, and configured to receive exhaust gas from, the internal combustion engine. An exhaust gas driven turbine wheel is disposed for rotation in a turbine housing of the turbocharger. A reductant injection device is fluid communication with the exhaust gas driven turbine wheel, a reductant tank having a reductant stored therein and a conduit system fluidly connecting the reductant tank with the reductant injection device. Reductant is delivered to the reductant injection device for delivery of the reductant to the exhaust gas driven turbine wheel.

Abstract: Modeling catalyst exotherm due to blowthrough is provided. The method of calculating a temperature of exhaust from an internal combustion engine having a catalyst may include determining a temperature of the exhaust, determining a catalyst exotherm based on an amount of blowthrough air and a combustion air-fuel ratio, and adjusting the determined temperature of the exhaust based on the determined catalyst exotherm.

Abstract: A control for an internal combustion engine in which it is determined whether a request for a turbo flow mode is output and whether there is a possibility that a catalyst may be deactivated. More specifically, it is determined whether a catalyst gas temperature is above a predetermined value. The predetermined value is set in advance so that when the catalyst gas temperature is equal to or below the predetermined value, the catalyst is deactivated. When it is determined that there is a possibility that the catalyst may be deactivated if exhaust valves are placed in the turbo flow mode, a retard amount in an ignition timing retard correction is determined. An ignition timing is calculated. It is permitted to switch a valve opening mode to the turbo flow mode.

Abstract: A compound bracket system (400) for an internal combustion engine (100) includes a first bracket (112) that is rigidly connected to a crankcase (102) of the internal combustion engine (100). The first bracket (112) forms at least one mounting pad (310) that is arranged to connect to and support a first engine component (114). A second bracket (120) is connected to the crankcase (102) through at least one additional engine component (110). The second bracket (120) forms a component cavity (208) that is arranged to accept and support a second engine component (118). The first bracket (112) forms an interconnection pad (314), and the second component forms a strut (216) having a mounting tab (218). The mounting tab (218) is advantageously connected to the interconnection tab (314) with a fastener (422), thus increasing the rigidity of the second bracket (120) as mounted on the engine (100).

Abstract: The present invention relates to a charging device (1) for a combustion engine, more preferably exhaust gas turbocharger, preferentially in a motor vehicle, comprising a rotor having a compressor wheel (4) and a shaft (5), a stator (3) having a bearing housing (6) in which the shaft (5) is rotatably mounted about an axis of rotation (7) and a compressor-sided sealing zone (8), in which a rotor-sided sealing surface (9) and a stator-sided sealing surface (10) are located axially opposite each other. An improved sealing effect can be achieved if at least one of the sealing surfaces (9, 10) has a plurality of depressions (15) arranged distributed in circumferential direction.

Abstract: Disclosed is a turbocharged internal combustion engine (1) having at least one intake (8) for supplying the internal combustion engine (1) with fresh air or fresh mixture on an inlet side (10), a cylinder head (3) having at least two cylinders (3a) which are arranged along a cylinder head longitudinal axis (4) and each of which has at least one outlet opening (13) which is adjoined by an exhaust line (6) for discharging the exhaust gases out of the cylinder (3a), with the exhaust lines (6) of at least two cylinders (3a) being merged on an outlet side (11), so as to form an integrated exhaust manifold (5) within the cylinder head (3), to form an overall exhaust line (7), and at least one exhaust-gas turbocharger (2) which comprises a turbine (2a) arranged in the overall exhaust line (7) and a compressor (2b) arranged in the at least one intake (8), with the turbine (2a) having a turbine rotor, which is provided on a charger shaft (2c), and an inlet region for supplying the exhaust gas, and the compressor (2b)

Abstract: An exhaust-gas aftertreatment system for an internal combustion engine of a vehicle includes at least one exhaust line, at least one turbocharger and at least one exhaust-gas converter. The at least one exhaust-gas converter is provided between the internal combustion engine and the at least one turbocharger and has a first volume of at least 0.6 liters. A method for purifying exhaust gas and a vehicle having the system, are also provided.

Abstract: One embodiment of the invention includes a method comprising: in a combustion engine breathing system having an air intake side and a combustion exhaust side, injecting air from the air intake side into the combustion gas exhaust side.

Abstract: A flow regulator valve having multiple stages is described herein. The flow regulator valve provides a base amount of propane when the engine is idling and provides additional propane to the engine based on the engine's requirements.

Abstract: A connecting flange comprises a generally open ended cylindrical body having an inlet adapted for receiving a gasket for providing a sealing connection with a turbocharger housing, and an outlet for connection to marine exhaust conduit. The connector inlet terminates in an end having a radially flared angularly disposed end wall adapted for mating abutting engagement with a correspondingly angled turbocharger housing end wall. The connector inlet end further includes circumferential axially recessed groove that receives spiral wound gasket in a configuration wherein the gasket forms redundant seals at a plurality of locations. The connector inlet structure cooperates with the turbo charger outlet structure to completely enclose the gasket thereby protecting the gasket from hot corrosive exhaust gases. A V-Band clamp is disposed in covering relation with the connector end wall and abutting turbocharger housing component to secure the connector to the turbocharger.

Abstract: A forced induction system for an engine comprising a compressor for increasing the pressure of gas into the engine and a turbine arranged to be driven by engine exhaust gas. The system further comprises a generator and an electric motor. The generator is arranged to be driven by the turbine and the motor is arranged to drive the compressor, wherein the generator and motor are electrically connected. The system comprises electrical control means arranged to receive the electrical signal output by said generator during operation and to apply an AC control signal to said electric motor whereby the compressor is driven at least in part by an output torque of the turbine via the electrical connection therebetween.

Abstract: A pneumatic hybrid turbo transmission for reduced energy consumption is disclosed. A pneumatic hybrid turbo transmission configured as a multi-purpose unit (MPU). The MPU recovers energy from the cooling system, exhaust system, ram pressure and the breaking system. The MPU unit is an automatic transmission, supercharger, air compressor for other uses, and starter for the engine using a multi-purpose unit that will eliminate the need for a torque converter or clutch, flywheel, catalytic converter, starter and supercharger. The MPU reduces pollution to near zero and reduces the aerodynamic drag coefficient on the vehicle. The MPU uses two or more in-line compressors to transfer power from the power source, such as an internal combustion engine (ICE) to a turbine or multi-stage turbine that acts as an automatic transmission. The pneumatic hybrid turbo transmission system uses plug-in power as a second source of power.

Abstract: The invention is intended to optimize the recovery of the residual energy contained in the exhaust gases of an internal combustion piston engine by means of a turbocharger group, in which each cylinder (1) from which the combustion gases escape through the exhaust pipe (5) is equipped with a turbine (7), and the volume (5) between the exhaust valve (3) and the inlet of the turbine (7), detrimental to the efficiency thereof, is minimized by the attachment of the turbine directly on the cylinder head of the engine without the intermediary of a collector.

Abstract: The present invention provides a servo actuated operating mechanism for a lobed rotor positive displacement supercharger combining a low cost and capacity electromagnetic clutch with a small oil pump internal to the supercharger unit. The oil pump supplies on demand oil pressure from oil in a hydraulic clutch housing or the supercharger timing gear case and acts as a servomechanism to actuate an internal hydraulic clutch. The hydraulic clutch can be engaged over a much wider range of speeds and loads than is possible with an electromagnetic clutch alone. The addition of an accumulator enables even faster engagements. The electro-hydraulic servomechanism provides improved highway fuel economy relative to an electromagnetic clutch as the engagement speed could be moved to a higher rotational speed (rpm).

Abstract: A supercharger with an electric motor includes, a turbine impeller rotationally driven by an exhaust gas, a compressor impeller rotationally driven by rotation of the turbine impeller, a compressor housing accommodating the compressor impeller, a turbine housing accommodating the turbine impeller, a shaft coupling the turbine impeller and the compressor impeller, a bearing housing rotatably supporting the shaft, an electric motor accommodated in an inside of the bearing housing for assisting rotation of the turbine impeller, and a power supply line extending from an inside to an outside of the bearing housing. The power supply line has one end portion connected to the electric motor, and the other end portion connected to a connector that receives electric power. The connector is installed at a position that is away from a side of the turbine impeller, and is less affected by heat of the exhaust gas.

Abstract: An exhaust turbo supercharger is provided that is able to effectively prevent exhaust gas that has flowed into between a turbine housing and a bearing housing from leaking to outside of the device, while allowing an excellent level of workability in assembly and disassembly. Included is a turbine housing, into which exhaust gas from an internal combustion engine is introduced; a turbine wheel which is provided within the turbine housing and which is rotation-driven by the exhaust gas; a turbine shaft, one end of which is inserted into the turbine housing, and to which the turbine wheel is attached; a bearing which supports the turbine shaft; and a bearing housing which is connected to the turbine housing and inside of which the bearing is housed.

Abstract: A method and arrangement for improving hydrolysis of a reduction agent in an exhaust gas post treatment system for selective catalytic reduction of NOx in the exhaust gas of an internal combustion engine operated with excess air. A partial exhaust gas stream is branched off from an exhaust gas stream upstream of an SCR catalytic converter. A hydrolysis catalytic converter, is disposed in the partial exhaust gas stream downstream of a metering arrangement for supplying reduction agent thereto. The partial stream is conveyed back to the main stream downstream of the hydrolysis catalytic converter and upstream of the SCR catalytic converter.