| 摘要 |
A forced induction system for an internal combustion engine 60, comprising a piston and cylinder air compressor 40. Preferably the air compressor is driven directly from the engine at a fixed ratio and the air compressor can be partially or completely unloaded using a disengageable clutch, where dead volume unloading is possible. The speed at which the compressor is driven may vary relative to the speed of the engine, the compressor may be driveable by an electric motor or by a continuously variable transmission. The system may also comprise a turbocharger and at least one control valve provided after the turbocharger. A method of supercharging an internal combustion engine is also claimed. |
