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皮气涡轮增压器的发展,对柴油机动力装置的经济性究竟起到怎样的影响,这方面最好用 BBC公司的新型 VTR-4系列增压器来说明。这种增压器具有较高的压比,其效率也有所提高,可以用它来降低废气温度、提高柴油机功率和降低燃油消耗率。由于提高了增压器的综合效率,例如从62%提高到67%,因此就可能使二冲程和四冲程柴油机都能保证获得明显的纯收益,它比为它所花费的投资要高出好几倍。对既定设计的柴油机,影响其总经济性的另一个参数是增压度,对它是可以求得最佳值的。就新型中速四冲程柴油机而言,当平均有效压力为20巴时,达到最佳经济性的最佳增压度大致是π_(?)=3.0。
The development of the gas turbine turbocharger, how does it affect the economy of the diesel power plant, it is best to use BBC’s new VTR-4 series supercharger to illustrate. This supercharger has a higher pressure ratio, its efficiency has also been improved, you can use it to reduce exhaust temperature, improve diesel engine power and reduce fuel consumption. By increasing the turbocharger’s overall efficiency, for example from 62% to 67%, it is possible to ensure that both two-stroke and four-stroke diesel engines promise a significant net benefit, which is more than the investment they cost Times For a given design diesel engine, another parameter that affects its total economy is the degree of boost, for which the best value can be found. In the case of the new medium speed four-stroke diesel engine, when the mean effective pressure is 20 bar, the optimal boost for optimal economy is approximately π _ (?) = 3.0.