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苏联玛雷舍夫工厂对Д70机车柴油机(缸径为240毫米)所进行的专门试验表明:当柴油机的功率按机车特性降到额定功率的60％时,燃油消耗率不高于155克/有效马力·小时。提高柴油机在部分负荷下的经济性、降低燃油费用的措施之一是提高增压压力,即提高在部分工况时的过量空气系数。增压空气压力对柴油机经济性影响的试验是在外源扫气的单缸试验机上进行的。试验台所采用的必要的进、排气参数是考虑到涡轮增
Special tests carried out at the Maureshev factory in the United Kingdom on the Д70 locomotive diesel engine (bore 240 mm) show that the fuel consumption rate is not higher than 155 g / hp when the power of the diesel engine is reduced to 60% of rated power according to locomotive characteristics ·hour. One of the measures to increase the economy of a diesel engine under partial load and to reduce the fuel cost is to increase the supercharging pressure, that is, to increase the excess air coefficient in some operating conditions. The test of the effect of charge air pressure on the economic performance of diesel engines is carried out on a single-cylinder test machine with external scavenging. The necessary inlet and exhaust parameters used on the test rig are turbine turbo