试验结果表明，与普通增压器相比，改善了柴油机的扭矩特性和低转速经济性，抑制了高速时的增压过量。
The results show that the torque characteristic and economy of diesel engine at low speed are improved, and the over boost at high speed is rejected.
采用可变几何涡轮增压器（VGT）是改善增压柴油机低工况的有效方法。
The variable geometry turbocharger(VGT) is used to improve the performance of high pressure-ratio diesel engine, particularly at low load.
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