| 摘要 |
The i.e. engine supercharger has a displacement compressor, pref of a fual rotor screw type. The compressor has a shaft (1) of one rotor (2) driven through a gear train (9) from the engine crankshaft. The other end of this shaft is coupled by a second gear train (13, 14) to the shaft (15) of an exhaust gas turbine (5). The arrangement maintains a high supercharging pressure at low engine speeds. At high engine speeds, the turbine delivers more power than is needed by the supercharger. The excess power is fed back to the engine.
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