Patent ID: 8919121

Claim:
A turbocharged internal combustion engine with exhaust recycling, comprising: an internal combustion engine including a plurality of cylinders, each cylinder having at least one inlet opening and at least one exhaust gas opening, an intake manifold connected to said inlet openings, an exhaust manifold connected to said exhaust gas openings, a fresh air turbocharger including a first turbine, the inlet of said first turbine is connected to the exhaust manifold and the outlet of said first turbine is connected to the atmosphere, and a fresh air compressor, the inlet of which is connected to the atmosphere and the outlet of which is connected to the intake manifold, and an exhaust supercharger including, a compressor, the inlet of which is supplied with exhaust from the exhaust manifold and the outlet of which is connected to the intake manifold, wherein the intake manifold is divided by a separating wall into a fresh air passage and an exhaust passage, one of the passages being connected to the inlet openings of the cylinders, wherein the fresh air passage is connected to the outlet of the compressor of the fresh air turbocharger, the exhaust passage is connected to the outlet of the compressor of the exhaust supercharger, and the separating wall is formed with orifices connecting the two passages, wherein the compressor of the exhaust supercharger is driven by a second turbine, the inlet of said second turbine is connected to the exhaust manifold and the outlet of said second turbine is connected to the atmosphere, wherein a control valve is provided between the exhaust manifold and the inlet of the second turbine of the exhaust turbocharger, wherein the intake manifold is formed integrally with a crankcase of the engine, wherein the fresh air passage is located above the exhaust passage and is directly connected to the inlet openings of the cylinders, and wherein the orifices connecting the two passages are formed by tubes extending from the separating wall in an upward direction.