虽然早在1920年涡轮增压就成功地应用到船用和固定式大型柴油机上了,但是直到40年代后期,汽车发动机的涡轮增压实际上没有取得什么进展。这主要是由于用在较小型发动机上的波希(Buchi)型涡轮增压器有以下缺点,即:小型单级轴流涡轮的气动效率低,滚珠和滚柱轴承不能适应所需要的极高的速度,涡轮材料不能承受足够高的排气温度。 Although turbocharging was successfully applied to large marine and stationary diesel engines as early as 1920, no substantial progress was made in the turbocharger of automotive engines until the late 1940s. This is mainly due to the disadvantage of the Buchi-type turbochargers used on smaller engines that the small single-stage axial flow turbines have low aerodynamic efficiency and ball and roller bearings can not accommodate the extremely high demands The turbine material can not withstand sufficiently high exhaust temperatures.