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在保持发动机现有结构不变的情况下,由于受到现有机械负荷和热负荷的限制,发动机的功率难以继续提高。但在降低压缩比的情况下,却能在不提高机械负荷和热负荷的条件下提高功率,不过这将使起动和怠速性能恶化,因此需要采取辅助措施来改善这些工况。下面介绍西德MTU公司为此而研制成功的一种方法,这种方法就是在起动和怠速时仃止向柴油机半数气缸供油的气缸断油法和以断油气缸的压缩空气向另半数燃烧作功的气缸内补充充气的补充充气法。
In keeping with the existing structure of the engine unchanged, due to the existing mechanical load and heat load constraints, the engine's power is difficult to continue to increase. However, with a reduced compression ratio, it is possible to increase power without increasing mechanical and thermal loads, but this will degrade starting and idle performance and therefore require additional measures to improve these conditions. The following describes a method developed by West Germany MTU for this purpose, this method is starting and idle stop at half the number of diesel cylinder cylinder fuel supply to the cylinder off and the compressed air cylinder to the other half of the combustion Replenishment of the gas cylinder to supplement the inflatable supplement method.