汽化器的脉动加浓

• 作 者: Peter J.Moss 魏励勇
• 出 处: 小型内燃机
• 发表日期: 1982年02期
• 关键词: 汽化器 加浓 节气 混合气 最大功率 空气流量 喉口 压力降 气缸 燃油流量

众所周知,当汽化器节气门全开时产生的混合气要比节气门部分开启时的燃油成份要浓。当四缸机只用一个汽化器时,节气门全开下得到的最大加浓程度足以保证发出最大功率。当一个汽化器用于发动机的一个或两个气缸上的时候,这种加浓就更加明显,以致在节气门全开时混合气变得过浓。在实际应用中,四缸直列发动机使用两个汽化器时,通常在两

It is well known that when the carburetor throttle is fully open, the mixture is thicker than the fuel composition when the throttle is partially open. When a four-cylinder machine uses only one vaporizer, the maximum degree of enrichment achieved under the full throttle is sufficient to ensure maximum power is emitted. This enrichment becomes even more pronounced when a vaporizer is used on one or both of the cylinders of the engine so that the mixture becomes too rich when the throttle is fully open. In practice, four-cylinder in-line engines use two carburetors, usually two