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冈兹-玛伐格根据自己过去设计16缸发动机所获得的经验,在热机研究所——皮尔斯蒂克18VPA4-185型柴油机上,成功地实现了脉冲转换器增压系统。可以把这种增压方式看成是脉冲增压方式[有时称为波许系统]和等压增压方式的结合。因此,可以用这二种常规增压方式的优点来说明脉冲转换器增压的特点。脉冲转换器可以在临近气缸的脉冲管中产生类似脉冲增压所产生的压力波。因此,就保证了良好的扫气效果。同时,还保持等压向涡轮供气,维持涡轮的最佳效率。这种脉冲转换器的几何形状,尤其是各废气流汇集处的气流通道截面的变化,必须根据压力波的动力学原理加以确定。本文所论及的柴油机装备了具有三个进口的脉冲转换器。由于这种增压方式不仅改善了柴油机的工作参数,而且还具有脉冲与等压这两种增压方式的优点,因此得到了良好的评价。8台2,700马力机车用柴油机所取得的经验已经证实了这一评价是正确的。
According to his experience in designing a 16-cylinder engine, Gunz-Malfog successfully implemented a pulse-converter supercharging system at the Thermo-Institute Pearstuch 18VPA4-185 diesel engine. This type of boost can be thought of as a combination of pulsed boost [sometimes referred to as Bauhinia system] and isobaric boost. Therefore, the advantages of these two conventional pressurization methods can be used to characterize the pulse converter boost. The pulse converter can generate a pressure wave similar to the pulse supercharging in the pulse tube near the cylinder. Therefore, to ensure a good scavenging effect. At the same time, it also maintains equal pressure to the turbine to maintain optimum turbine efficiency. The geometry of such a pulse converter, and in particular the changes in the cross-section of the gas flow paths at the converging exhaust gas flows, must be determined on the basis of the kinetics of the pressure wave. The diesel engine discussed in this article is equipped with a three-input pulse converter. As this supercharging method not only improves the working parameters of the diesel engine, but also has the advantages of the two supercharging methods of pulse and isobaric pressure, so a good evaluation is obtained. The experience gained with eight 2,700-horsepower diesel engines has confirmed that this rating is correct.