The present disclosure relates to a twin scroll turbocharger device for an internal combustion engine having at least one combustion chamber. The turbocharger device comprises a turbine portion comprising a turbine wheel; a first turbine scroll and a second turbine scroll; and a first turbine scroll valve for allowing control of a flow of exhaust gas through the first turbine scroll. The turbocharger device also comprises a compressor portion comprising a compressor inlet; a compressor outlet; and a compressor wheel for pressurizing air received from the compressor inlet and providing pressurized air to the at least one combustion chamber via the compressor outlet. The turbocharger device further comprises a container for storing pressurized gas; a container conduit fluid flow connecting the container and the turbine portion for controllably providing pressurized air from the container to a first container inlet located between the first turbine scroll valve and the turbine wheel.

The present invention relates to a device for controlling the amount of fluid fed to the intake of a supercharged internal-combustion engine comprising at least one turbocharger (18) with a compression stage (24) including at least one compressor (26) with an intake (38) for the fluid to be compressed, an expansion stage (20) with at least one turbine (22) having at least one exhaust gas inlet (32) and expanded exhaust gas outlet (34), a transfer line (46) for carrying the compressed fluid from the compressor outlet to the at least one turbine inlet with throttling means (52) for controlling the compressed fluid transfer to the turbine.

According to the invention, the device comprises an exhaust gas recirculation line (56) between exhaust gas outlet (34) of turbine (22) and intake (38) of compressor (26).

A product comprising a turbocharger comprising a turbine operatively connected to a compressor, an exhaust conduit connected to an inlet of the turbine, a bleed path connected to an outlet of the compressor, the bleed path comprising at least one of an open end to discharge compressor air to the atmosphere or an end connected to the exhaust conduit up stream of the turbine constructed and arranged to flow air from the compressor into the turbine.

A method and apparatus for regenerating a Lean NOx Trap in an internal combustion engine is disclosed. The internal combustion engine includes a Lean NOx Trap, a turbocharger having a turbine. An electronic control unit is configured to execute a regeneration event of the Lean NOx Trap, and regulate a position of an actuator affecting a rotating speed of the turbine using a closed-loop control strategy of an air pressure into an intake duct downstream of a compressor of the turbocharger and upstream of a throttle valve during the execution of the regeneration event.

The present invention relates to a device for controlling the amount of air fed to the intake of a supercharged internal-combustion engine, said engine comprising two exhaust gas outlets (32, 36) connected each to an exhaust manifold (30, 34) of a group of at least one cylinder (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4), said device comprising a supercharging device (38) including a turbocharger with a dual-inlet (50, 52) turbine (40) connected to said exhaust gas outlets, as well as an outside air compressor (44), and at least one duct for partial transfer of the compressed air from the compressor to the two turbine inlets. According to the invention, the partial transfer duct opens into the cylinder head at the exhaust valves and it comprises throttling means (74, 76) controlling the compressed air circulation in this duct.

The present invention relates to a method of controlling the amount of air fed to the intake of a supercharged internal-combustion engine, said engine comprising two exhaust gas outlets (32, 36) connected each to an exhaust manifold (30, 34) of a group of at least one cylinder (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4), comprising a supercharging device (38) including a turbocharger with a dual-inlet (46, 48) turbine (40) connected to said exhaust gas outlets, as well as an outside air compressor (44), and a duct (64) for partial transfer of the compressed air from the compressor to the turbine inlets. According to the method, two branches (70, 72) are provided on said partial transfer duct, said branches being connected to the turbine inlets and carrying each proportional throttling means (74, 76), and the compressed air circulation in the branches is controlled during transient operation phases according to strategies applied to said throttling means and determined in accordance with the stabilized phase characteristics.

A method and a system for preventing surge of a vehicle may include: determining whether an engine operation mode is a particulate filter regeneration mode or a catalyst desulfurization mode; determining, when the engine operation mode is the particulate filter regeneration mode or the catalyst desulfurization mode, a torque change; determining whether the torque change is smaller than a predetermined value; determining, when the torque change is smaller than the predetermined value, whether an intake pressure is higher than an exhaust pressure by at least a predetermined pressure; and opening, when the intake pressure is higher than the exhaust pressure by at least the predetermined pressure, an exhaust gas recirculation (EGR) valve and a throttle valve.

The present invention is a device for controlling an amount of air fed into the intake of a supercharged internal combustion engine with the engine comprising two exhaust gas outlets (32 and 36) each linked to an exhaust manifold (30 and 34) in at least one cylinder (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4). A supercharging device (38) comprising a turbo-compressor with a double-intake (50 and 52) turbine (40) is connected to the exhaust gas outlets and to an outside air compressor (44) and to a partial transfer duct of the compressed air from the compressor towards the intakes of the turbine. The partial transfer duct comprises two branches (70 and 72) which are connected to intakes of the turbine each having a shut-off (74 and 76) which controls circulation of compressed air in the branches. The partial transfer duct is integrated into the casing of the turbo-compressor so that a manner as a length between the outlet of the compressor and the double intakes of the turbine is as short as possible to achieve a limited size and optimized response time.

The present invention relates to a device for controlling the amount of air fed into the intake of a charged internal combustion engine, said engine comprising two exhaust gas outlets (32, 36) each connected to an exhaust manifold (30, 34) of a group of at least one cylinder (12.sub.1, 12.sub.2, 12.sub.3, 12.sub.4), said device comprising a charging device (38) comprising a turbocompressor having a dual-inlet (46, 48) turbine (40) connected to said exhaust gas outlets and an external air compressor (44), and at least one duct for partially transferring compressed air from the compressor to the turbine inlets.

According to the invention, the partial transfer duct (100, 102; 110, 112) is integrated into the cylinder head and comprises throttling means (74, 76) controlling the circulation of compressed air in said duct.

An internal combustion engine includes a suction tract, a compressor disposed in the suction tract, and an exhaust tract. A secondary air system is fluidically connected to the exhaust tract at an introduction point and to the suction tract at a first branching point downstream of the compressor where a part of air compressed by the compressor is branchable off from the suction tract and is introducible into the exhaust tract at the introduction point. The secondary air system is fluidically connected to the suction tract at a second branching point upstream of the compressor where a part of air is branchable off from the suction tract by the secondary air system and is introducible into the exhaust tract at the introduction point. Air branched off at the second branching point is feedable through the secondary air system and is feedable to the introduction point by a secondary air pump.