化油器自动加浓阀的原理与应用

Mechanism and Application of Automatic Enrichment Valve in Carburetor

自动加浓阀主要由PTC、石蜡体和针阀组成。改变PTC与石蜡体的配方，可以使化油器在各种环境下都能提供给发动机起动与暖机过程中所需的理想空燃比的混合气，提高化油器的综合性能。

The automatic enrichment valve is composed of PTC,wax and valve needle. The different formula of wax and PTC can make the carburetor provide the best A/F mixture needed during the start and warm-up of the engine under various circumstances and fully upgrade the comprehensive performances of the carburetor.