| Patent application number | Description | Published |
|---|
| 20080223333 | Control Method For the Intake and Exhaust Valves of and Engine and Internal Combustion Engine Comprising Such Valves - This method is for controlling the intake and exhaust valves of the cylinders of an internal combustion engine which is capable of operating either in four-stroke positive mode or in two-stroke braking mode. The control means pilot the valves so that at least a first exhaust valve of each cylinder ( | 09-18-2008 |
| 20100064685 | INTERNAL COMBUSTION ENGINE COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM - An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR. | 03-18-2010 |
| 20100095941 | INTERNAL COMBUSTION ENGINE COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM - This internal combustion engine includes a plurality of cylinders, an air intake line, and an exhaust line. The internal combustion engine also includes a turbocharging system having at least one compressor stage and intake air cooling arrangement having at least one charge air cooler located upstream from the intake manifold. The internal combustion engine further includes an exhaust gas recirculation (EGR) line rerouting a portion of the engine's exhaust gas into the air intake line at a point located upstream from the at least one charge air cooler. This engine therefore uses an heat exchanger to cool the EGR gas. Thus, EGR gas mixed with intake air flows through at least one change air cooler before entering the engine cylinders. The efficiency of this cooler—generally of the air/water type—makes it possible to significantly decrease the EGR gas temperature before it enters the cylinders. Less cooling power from the engine cooling system is required to cool down the EGR gas as fresh intake air is used as a cooling medium in the heat exchanger. | 04-22-2010 |
