초록 ▼

A supercharged diesel engine (1) with a mechanical supercharger (5) and a turbocharger (4) connected in series so that the pressure side of the supercharger is connected to the suction side of the turbocharger. The supercharger and the turbocharger each have an intake conduit (20, 25) which exits a

A supercharged diesel engine (1) with a mechanical supercharger (5) and a turbocharger (4) connected in series so that the pressure side of the supercharger is connected to the suction side of the turbocharger. The supercharger and the turbocharger each have an intake conduit (20, 25) which exits a common expansion chamber (22). The conduit (25) to the suction side of the mechanical supercharger (5) contains a nozzle (28), whilst the conduit (26) from its pressure side contains a double nozzle with an intermediate expansion chamber (30) which, together with the expansion chamber (22) and the first-mentioned nozzle, serve to suppress noise from the supercharger.

대표청구항 ▼

A supercharged internal combustion engine comprising an exhaust-driven turbocharger, a supercharger mechanically driven by the engine, the pressure side of the supercharger being connected to the suction side of the turbocharger, and a valve arrangement disposed in a conduit connected to the suction

A supercharged internal combustion engine comprising an exhaust-driven turbocharger, a supercharger mechanically driven by the engine, the pressure side of the supercharger being connected to the suction side of the turbocharger, and a valve arrangement disposed in a conduit connected to the suction side of the turbocharger and connecting the suction side of the turbocharger only to the pressure side of the mechanical supercharger in a first valve position and permitting air supply to the turbocharger past the mechanical supercharger in a second valve position, characterized in that an intake conduit (23) from an air filter (24) leads into an expansion chamber (22) from which said conduit (20) containing the valve arrangement (21) leads to the suction side of the compressor (7) of the turbocharger (4) and from which a second conduit (25) leads to the suction side of the mechanical supercharger, and in that a conduit (26) containing a first nozzle (31) connects the pressure side of the mechanical supercharger to the suction side of the turbocharger.