Fuel Injection Pump Is The Most Important Part Of Diesel Engine

Fuel injection pump is an important part of diesel engine. Fuel injection pump assembly is usually composed of fuel injection pump, governor and other components installed together as a whole. The governor is a part to ensure the low speed of the diesel engine and the limit of the maximum speed, to ensure that the injection volume and speed maintain a certain relationship. The fuel injection pump is the most important part of the diesel engine, which is regarded as the "heart" part of the diesel engine. Once it goes wrong, the whole diesel engine will work out of order.
Fuel injection pump can be divided into three types: plunger type fuel injection pump, fuel injection pump - injector and rotor distribution type fuel injection pump. Among them, the plunger fuel injection pump is the longest history and the most widely used, with high reliability; The fuel injection pump and fuel injector are integrated into one, and directly installed on the engine cylinder head, which can eliminate the adverse effects of high pressure tubing (the engine is required to add another driving mechanism); The rotor distribution type injection pump has only a pair of plungers, which mainly relies on the rotation of the rotor to realize the fuel pressurization and distribution. It has the characteristics of small volume, light weight, convenient use and low cost.
In our country, fuel injection pumps are based on plunger stroke, center distance of pump cylinder and structure type, and then matched with different sizes of plungers to form A number of fuel injection pumps with different fuel supply in one working cycle, forming Ⅰ, Ⅱ, Ⅲ and A, B, P and Z series to meet the needs of various diesel engines.