Abstract: The invention relates to a system (100) for producing energy or torque, comprising: a generator designed so as to generate energy or torque from a gas introduced at an admission of the generator; at least two compressors (101, 102) for compressing the gas at the admission of the generator; and a pipeline system (103) in which the pipes (101a, 102a, 101b, 102b, Ce, Cs) are designed such that they can be opened or closed in order to selectively place said compressors (101, 102) in series or in parallel.

Abstract: The invention concerns a discharge valve (17) intended to be fitted in a discharge duct of an apparatus designed to be driven by a fluid, in particular a turbocharger driven by the exhaust gases from an engine. The discharge valve (17) comprises a cavity (83) having a first (85), a second (87) and a third aperture (89), each intended to be connected to a respective duct, the discharge valve (17) also comprising first (91) and second (93) means for closing the first (85) and second (87) apertures, respectively, in order to control communication between the ducts.

Abstract: The invention relates to an assembly (1) comprising: an admission circuit (4) extending between an air inlet (11) and an outlet connected to the inlet of a heat engine (2); an exhaust circuit (6) extending between an inlet connected to the outlet of the heat engine (2) and an exhaust gas outlet (13); said heat engine (2); a return loop (22) enabling all or some of the exhaust gases in the exhaust circuit (6) to be reinjected upstream of the heat engine (2); and an electric compressor (30) arranged in the assembly (1) in such a way as to be able to receive gases recirculating in the return loop (22).

Abstract: The present invention concerns an assembly (1) comprising: an intake duct (4) extending between an air inlet (11) and a heat engine (2), a heat engine (2), an electric compressor (5) disposed on the intake duct and upstream from the heat engine (2), the electric compressor (5) being configured to allow the spark advance to be degraded during a transitory phase.

Abstract: This invention relates to an assembly comprising: an intake pipe (4) extending between an air inlet (11) and a combustion engine (2), a combustion engine (2), an electric compressor (5) arranged on the intake pipe upstream of the combustion engine (2), a valve (8) arranged upstream of the combustion engine (2), the electric compressor (5) being configured to enable the residual burnt gases to be scavenged.

Abstract: The invention relates to an assembly (1) for an air circuit of a heat engine, which includes: a first duct (11) capable of conveying fluid; a second duct (12) extending between an inlet (13) and an outlet (14) in the first duct (11), such as to form a bypass of a portion of the first duct (11), the second duct (12) including a pressure-variation source (15); and a system for routing (10) the fluid in either the second duct (12) or said portion of the first duct (11), the routing system (10) having a first configuration allowing the fluid to flow mostly into said portion of the first duct (11), the routing system including: a holding member exerting a force configured to hold or move said routing system (10) into the first configuration; and either an area blocking all or part of the inlet of the second duct in said first configuration or an area blocking all or part of the outlet of the second duct in said first configuration, the routing system being arranged such as to enter a send configuration allowing th

Abstract: The invention concerns a system (3) for supercharging the intake gases and for recirculating the exhaust gases of an engine (1), comprising: a supercharging circuit (5) comprising a turbocharger (9) to be driven by the exhaust gases from at least a first cylinder (2a, 2b, 2c) of the engine (1); a recirculating circuit (7) for the exhaust gases from at least a second cylinder (2d); and an exhaust gas-orienting device (25) winch is connected to the two circuits (5 and 7) and is intended to be connected to an exhaust line (23) of the engine (1) so as to control an amount of exhaust gas placed in communication between the supercharging circuit (5), the recirculating circuit (7) and the exhaust line (23) of the engine (1).

Abstract: The invention concerns a discharge valve (17) intended to be fitted in a discharge duct of an apparatus designed to be driven by a fluid, in particular a turbocharger driven by the exhaust gases from an engine. The discharge valve (17) comprises a cavity (83) having a first (85), a second (87) and a third aperture (89), each intended to be connected to a respective duct, the discharge valve (17) also comprising first (91) and second (93) means for closing the first (85) and second (87) apertures, respectively, in order to control communication between the ducts.

Abstract: A three-way valve configured to provide the connection between a gas intake circuit and an exhaust gas recirculation circuit is disclosed. The valve includes a first shutter for regulating the airflow rate, a second shutter for regulating the recirculated exhaust gas flow rate, a single motor for driving the two shutters, and gearing connecting the motor to at least one shutter. The gearing includes functionality to drive the at least one shutter.

Abstract: The invention relates to an assembly (1) comprising: an admission circuit (4) extending between an air inlet (11) and an outlet connected to the inlet of a heat engine (2); an exhaust circuit (6) extending between an inlet connected to the outlet of the heat engine (2) and an exhaust gas outlet (13); said heat engine (2); a return loop (22) enabling all or some of the exhaust gases in the exhaust circuit (6) to be reinjected upstream of the heat engine (2); and an electric compressor (30) arranged in the assembly (1) in such a way as to be able to receive gases recirculating in the return loop (22).

Abstract: A three-way valve configured to provide the connection between a gas intake circuit and an exhaust gas recirculation circuit is disclosed. The valve includes a first shutter for regulating the airflow rate, a second shutter for regulating the recirculated exhaust gas flow rate, a single motor for driving the two shutters, and gearing connecting the motor to at least one shutter. The gearing includes functionality to drive the at least one shutter.

Abstract: The invention relates to a method for controlling an exhaust gas recirculation circuit (2c) for an internal combustion engine (M) of a motor vehicle. The engine (M) is linked to an air intake circuit (2a) and to a gas exhaust circuit (2b) linked to the air intake circuit (2a) by the recirculation circuit (2c). A first valve (15) controls the flow of air upstream from the recirculation circuit (2c), and gases that are recirculated within the a second valve (16) controls the flow of exhaust recirculation circuit (2c). In the method of the invention, the recirculation of the exhaust gases is in particular controlled by means of measuring a pressure difference across the terminals of the second valve (16).

Abstract: The invention relates to a method for managing an exhaust gas recirculation circuit of a petrol thermal engine, the engine including at least one combustion chamber connected to an inlet line and an exhaust line between which extends said recirculation circuit, the recirculation circuit including a flow-rate adjustment valve, wherein said method comprises the step of adjusting flow-rate adjustment valve based on a flow-rate setpoint, said method further comprising the steps of: detecting an operation parameter representative of a pressure difference between an upstream pressure and a downstream pressure relative to the flow-rate adjustment valve, and, after comparing the parameter with a threshold corresponding to a minimum pressure difference, adjusting the flow-rate in at least one of the lines in order to increase the pressure difference.

Abstract: The invention relates to an internal combustion heat engine, with at least one combustion chamber for intake gases comprising a mixture consisting of a fuel such as petrol and an oxidizer such as air, connected to an intake circuit (A) for the intake of said intake gases into the chamber and an exhaust circuit (B) for the exhaust of the burnt gases outside the chamber, an exhaust gas recirculation circuit (C, D) connecting the exhaust circuit to the intake circuit, and a control system for the exhaust gas recirculation. The control system is arranged so that the exhaust gas recirculation is implemented for at least one operation point defined by an engine speed and a torque output by the engine, for which the output torque is higher than 50% of the maximum engine torque. The invention can be used for operating the engine with optimal stoichiometric mixture and ignition advance without the occurrence of rattling.

Abstract: Internal combustion petrol engine comprising an engine block (2) connected to an intake circuit (3) including a compressor (6) and an exhaust circuit (4) including a turbine (13) which drives the compressor, the internal combustion engine including an exhaust gas recirculation circuit (11) which is connected to the exhaust circuit downstream of the turbine and is connected to the intake circuit upstream of the compressor, the recirculation circuit comprising a cooler. Method of managing such an engine.

Abstract: The invention relates to a method for controlling an exhaust gas recirculation circuit (2c) for an internal combustion engine (M) of a motor vehicle. The engine (M) is linked to an air intake circuit (2a) and to a gas exhaust circuit (2b) linked to the air intake circuit (2a) by the recirculation circuit (2c). A first valve (15) controls the flow of air upstream from the recirculation circuit (2c), and gases that are recirculated within the a second valve (16) controls the flow of exhaust recirculation circuit (2c). In the method of the invention, the recirculation of the exhaust gases is in particular controlled by means of measuring a pressure difference across the terminals of the second valve (16).

Abstract: The present invention relates to a method of controlling the intake of an internal-combustion engine comprising at least two groups (12, 14) of at least one cylinder (C1-C4) wherein a feed is admitted for operation of said engine, and an exhaust line (40, 94, 100) comprising at least one exhaust gas depollution means (42, 96, 102). According to the invention, the method consists, while the engine runs at low speeds and/or at low torques, in evaluating the total feed to be admitted into the cylinders to operate the engine, in admitting a greater proportion of the total feed into one (12) of the groups of cylinders (C1, C4) than in the other (14) group of cylinders (C2, C3) so as to achieve an exhaust gas temperature increase allowing to speed up the rise in temperature of depollution means (42, 96, 102).

Abstract: The invention relates to an internal combustion heat engine, with at least one combustion chamber for intake gases comprising a mixture consisting of a fuel such as petrol and an oxidiser such as air, connected to an intake circuit (A) for the intake of said intake gases into the chamber and an exhaust circuit (B) for the exhaust of the burnt gases outside the chamber, an exhaust gas recirculation circuit (C, D) connecting the exhaust circuit to the intake circuit, and a control system for the exhaust gas recirculation. The control system is arranged so that the exhaust gas recirculation is implemented for at least one operation point defined by an engine speed and a torque output by the engine, for which the output torque is higher than 50% of the maximum engine torque. The invention can be used for operating the engine with optimal stoichiometric mixture and ignition advance without the occurrence of rattling.

Abstract: The invention relates to a method for managing an exhaust gas recirculation circuit of a petrol thermal engine, the engine including at least one combustion chamber connected to an inlet line and an exhaust line between which extends said recirculation circuit, the recirculation circuit including a flow-rate adjustment valve, wherein said method comprises the step of adjusting flow-rate adjustment valve based on a flow-rate setpoint, said method further comprising the steps of: detecting an operation parameter representative of a pressure difference between an upstream pressure and a downstream pressure relative to the flow-rate adjustment valve, and, after comparing the parameter with a threshold corresponding to a minimum pressure difference, adjusting the flow-rate in at least one of the lines in order to increase the pressure difference.

Abstract: The invention relates to a method for control of fuel injection for an internal combustion engine, in particular with direct fuel injection, comprising at least one cylinder (10), one piston (30) running in said cylinder, with a projection (34) arranged in a concave bowl (32), a fuel injector (22) and a combustion chamber (26).