| 摘要 |
<p>An arrangement in a throttle-controlled internal combustion engine (1, 2) equipped with a supercharger which has the form of a compressor (10) provided with screw rotors (14, 15) arranged in a compression chamber. The supercharger is inactive at part engine loads, and since the engine normally operates at part loads for about 95% of its running time, efficiency is correspondingly poor. This drawback is overcome with the arrangement according to the invention, which is mainly characterized in that the screw compressor (10) is provided on the inlet side (20) thereof with a capacity regulating device (22) which is operated by the gas pedal, or accelerator, and which when the engine is only partially loaded is adjusted to a corresponding position in which the compressor (10) operates as an expander (3) of variable throttle effect on the engine inlet side (3) and transmits power to the engine, therewith replacing the conventional gas throttle.</p> |
