Ifp Energies Nouvelles

Thierry Colliou

Bruno Walter

Stéphane Venturi

Jean-Marc Zaccardi

Olivier Baudrand

Claire-Noëlle Millet

Brigitte Martin

Yoann Viollet

Control of a quantity of air introduced into an intake of a supercharged internal combustion engine which includes a proportional valve located in a partial transfer duct which controls flow of compressed air flow through the partial transfer duct into an inlet of a turbine. The proportional valve is controlled to move between open and closed positions in accordance with strategies in accordance with stabilized phases of operation of the engine. Characteristics of stabilized phases of operation of the engine are determined and are used to control circulation of the compressed air during transitions between the stabilized phases of engine operation in accordance with the determined characteristics of the stabilized phases of the engine operation. The determined characteristics are derived from a previously completed mapping of speed and charging of the supercharged engine during a previous stabilized phase.

Method for controlling the quantity of air introduced to the intake of a supercharged internal combustion engine by a single-inlet turbocompressor

The present invention relates to a device for controlling the amount of air fed to the intake of a turbocharged internal-combustion engine comprising a turbocharging system including a turbocharger () with a turbine () connected to at least one exhaust gas outlet of said engine, as well as an outside air compressor (), a line () for partial transfer of the compressed air from the compressor to the turbine inlet, and an EGR line () between an exhaust gas outlet and a compressed air intake line (). The device is characterized in that the partial transfer line and the EGR line share at least one common portion ().

Device and method for controlling the injection of air and exhaust gas at the intake of a supercharged internal-combustion engine

The present invention relates to a device for controlling the amount of air fed into the intake of a charged internal combustion engine comprising two exhaust gas outlets () which are each connected to an exhaust manifold () of a group of at least one cylinder (). The device comprises a charging device () comprising a turbocompressor having a dual-inlet () turbine () connected to the exhaust gas outlets and an external air compressor (), 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 () is integrated into the cylinder head and comprises throttles () controlling the circulation of compressed air in said duct.

Device built into a cylinder head for controlling amount of air fed into the intake of a turbocharged internal combustion engine and method using such a device

The present invention controls the amount of air fed to the intake of a supercharged internal-combustion engine. The engine includes two exhaust gas outlets () each connected to an exhaust manifold () of a group of at least one cylinder (), a turbocharger with a dual-inlet () turbine () connected to the exhaust gas outlets, and to an outside air compressor (), and a duct () for partial transfer of the compressed air from the compressor to the turbine inlets. Two branches () of the partial transfer duct, are connected to the turbine inlets. Each branch carries proportional throttle (), and the compressed air circulation in the branches is controlled during transient operation phases according to strategies applied to the proportioned throttle valves and determined in accordance with the stabilized phase characteristics.

Method of controlling the amount of air fed into the intake of a supercharged internal combustion engine

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 () connected each to an exhaust manifold () of a group of at least one cylinder (), said device comprising a supercharging device () including a turbocharger with a dual-inlet () turbine () connected to said exhaust gas outlets, as well as an outside air compressor (), 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 () controlling the compressed air circulation in this duct.

Device for controlling a quantity of air fed into the intake of a supercharged internal combustion engine and cooling the exhaust&#x2014;method using such a device

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 (and) each linked to an exhaust manifold (and) in at least one cylinder (, 12, 12, 12). A supercharging device () comprising a turbo-compressor with a double-intake (and) turbine () is connected to the exhaust gas outlets and to an outside air compressor () 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 (and) which are connected to intakes of the turbine each having a shut-off (and) 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.

Device for controlling the amount of air fed into the intake of a supercharged internal combustion engine and method using such a device

The present invention is a device for controlling a quantity of air introduced into an inlet of a boosted internal combustion engine with the engine having exhaust gas outlets each connected to an exhaust manifold of at least one cylinder. The device includes a boosting device comprising a turbocharger having a turbine with intakes connected to the exhaust gas outlets, an external-air compressor and a duct for partially transferring the compressed air from the compressor to the intakes. The partial transfer duct has branches connected to the turbine intakes which each have a regulator valve for controlling circulation of compressed air in the branches.

Device for controlling the quantity of air admitted to a supercharged internal combustion engine and method of use thereof

The present invention relates to a method of treating exhaust gas pollutants, notably of an internal-combustion engine, with a system comprising an exhaust line (L) with selective catalytic reduction catalysis means () and injection means () for injecting a reducing agent into the line so as to treat the pollutants, characterized in that it consists in:

Method of treating pollutants contained in exhaust gases, notably of an internal-combustion engine, and system using same

The present invention relates to an internal-combustion engine comprising at least one cylinder () including intake means with an intake valve (), exhaust means with an exhaust valve () and control means () for controlling opening/closing of the valves, said control means comprising drive means () and means () intended for motion and load transmission between said control means and the valve to be controlled. According to the invention, motion and load transmission means () comprise a rocker arm () with at least two rockers () disengageable from a pad () controlling the motion of said valve.

Internal-combustion engine of the type with at least one cylinder working in degraded mode

A plant for treating pollutants contained in the exhaust gases of an internal-combustion engine includes an exhaust line () with an oxidation catalyst (), a selective catalytic reduction catalyst () including a chemically active porous body and an injector () for injecting a reducing agent into the exhaust line. The selective catalytic reduction catalyst () includes at least one chemically inert passage () for the exhaust gases flowing therethrough and a shut-off () controlling access of the gases to the passage.

Growing community of inventors

les Cotes d'Arey, France

Thierry Colliou