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现代化油器几乎都无例外地采用非独立怠速系,即怠速系从主量孔后取油的方案。由于怠速系和主油系油路连通,因此,在怠速至全负荷的全部发动机工作范围内,两个油系均发生相互作用。也就是说,即使在中等负荷以后怠速系不出油的情况下,怠速系仍对主油系的工作发生影响。因此,化油器的主配剂特性实际是怠速系和主油系协同工作的结果。协同工作的主要优点是,发动机很容易得到部分节气门开度时的燃料经济性。但也由此带来许多弊端,需要进行改进。 1非独立怠速系的弊端现代化油器的主油系基本上都是采用带
Almost without exception, the modern carburetor adopts a non-independent idle system, that is, the idle system takes oil from the main hole. Since the idle system is in communication with the main oil system, both oil systems interact within the full engine operating range from idle to full load. That is to say, the idle system still affects the operation of the main oil system even when the idle system is under no load after a medium load. Therefore, the main chemical composition of carburetor is the result of co-operation of idle system and main oil system. The main advantage of the coordinated work is that the engine is easy to get fuel economy with partial throttle opening. But it also brings many drawbacks and needs to be improved. 1 non-independent system of shortcomings of the main oil of modern carburetor are basically used with the band