What is on the top of a diesel engine?

[AriannaDella]

There is a fuel injector on the top of a diesel engine. Below are the specific details about the fuel injector: 1. Function: It injects high-pressure diesel supplied by the fuel injection pump into the combustion chamber at a certain pressure in the form of a mist to form a combustible mixture. 2. Requirements: The atomization should be uniform, the injection should be crisp and clean, there should be no dripping, and the shape and direction of the fuel spray should match the combustion chamber. 3. Structure: A closed fuel injector consists of the body, precision components such as the needle valve and needle valve body, push rod, lower spring seat, spring, upper spring seat, pressure adjusting screw, lock nut, high-pressure filter, and fuel inlet pipe joint, among other parts.