IC engine supercharging system with centrifugal and mechanical compressors - has mechanical compressor driven from engine or auxiliary electric motor with clutch to engage or disengage it

摘要

The system comprises at least one turbo-compressor (2) and at least one mechanical air compressor (3), driven by the engine (1), and situated in parallel in the engine feed circuit, and with the mechanical air compressor operated through an electromagnetic clutch (11) which has a response time of under 0.1 seconds. The mechanical air compressor can be either volumetric or centrifugal, and can be driven by the engine itself or by an auxiliary motor, preferably electric. The electric motor is preferably equipped with a speed regulator and powered by an engine auxiliary. The mechanical air compressor can be electronically controlled according to one or more engine parameters, and the engine is preferably of compression-ignition type. ADVANTAGE - Improved engine performance and lower exhaust pollution.