低温冷却回路命名与应用

[中文适用范围]： 本文件明确了用于公路和非公路、汽油以及轻型到重型柴油发动机冷却系统或混合动力车辆系统的多温度冷却液回路。这些多温度系统包括发动机缸套冷却液加至少一个较低温度的系统。不在范围内的是用于电动车辆的低温度系统，该主题在SAE J3073中涵盖。同样不在范围内的是用于低温度或高温度冷却液回路的热流量控制阀的术语和定义，该主题在SAE J3142中涵盖。 [外文原描述]： The document provides clarity related to multiple temperature coolant circuits used with on-highway and off-highway, gasoline, and light-duty to heavy-duty diesel engine cooling systems, or hybrid vehicle systems. These multiple temperature systems include engine jacket coolant plus at least one lower temperature system. Out of scope are the low temperature systems used in electric vehicles. This subject is covered in SAE J3073. Note that some content in SAE J3073 is likely to be of interest for hybrid vehicles. Out of scope are the terms and definitions of thermal flow control valves used in either low-temperature or high-temperature coolant circuits. This subject is covered in SAE J3142.