论文部分内容阅读
7.2.3喷油泵喷油泵是燃油系统的主要组成部分。它与供油凸轮一起决定了供油量供油时刻,与喷油器一起决定燃油雾化质量。喷油泵的作用是在柴油机工作时,按发火顺序和负荷大小,将提高了压力的柴油在一定的时间内以确定的数量和一定的规律供给喷油器喷射到各缸燃烧室中。为保证柴油机可燃混合气形成的特点和燃烧过程的需要,喷油泵应达到如下要求: a.供油量喷油泵的供油量应能满足配套柴油机在各种工况下的需要,同时还要求对各缸的供油要均匀。因此,它不但要有与之相适应的柱塞行程和柱塞直径,而且还要有可靠的供油量调整机构;
7.2.3 Fuel Injection Pump fuel injection pump is the main component of the system. Together with the fuel supply cam, it determines the fuel supply timing and, together with the injector, determines the quality of the fuel atomization. The role of fuel injection pump is in diesel engine, according to the order of firing and load size, will increase the pressure of diesel within a certain amount of time and a certain amount of fuel supply to the injection of the cylinder chamber. In order to ensure the formation of diesel flammable gas mixture and the characteristics of the needs of the combustion process, fuel injection pump should meet the following requirements: a. The fuel supply fuel injection pump fuel supply should be able to meet the needs of supporting diesel engine in various operating conditions, but also The fuel supply to each cylinder should be uniform. Therefore, it not only has to adapt to the plunger stroke and plunger diameter, but also have a reliable fuel supply adjustment mechanism;