What is the function of an engine fuel injector?
1 Answers
An engine fuel injector mainly consists of three parts: the starting circuit, the cold fuel injector, and the thermal time switch. The function of the cold start fuel injector is to spray fuel into the intake manifold during a cold engine start to enrich the air-fuel mixture and improve the engine's cold start performance. The cold start fuel injector is also known as an auxiliary fuel injector or cold start electric valve, enhancing the engine's low-temperature starting performance. The advantages and disadvantages of the cold start fuel injector are as follows: 1. Advantages: It can to some extent improve the difficulty of engine cold starts. 2. Disadvantages: Since the cold start fuel injector sprays fuel into the intake manifold, there is a drawback of uneven fuel supply to each cylinder.