A truck/auto engine is basically an internal combustion engine where power is generated through expansion of high temperature and hig pressure gases.
卡车/汽车发动机基本上是内燃机，其中高温和高压气体的膨胀产生动力。
A lot of heat generated due to the combustion gas and the friction of mechanical parts.For sustained operation, these excess heat should be removed from the engine and kept at operating temperature.
燃烧气体和机械零件的摩擦会产生大量热量，为了持续运行，应将这些多余的热量从发动机上清除掉并保持在工作温度下。
Then,what parts involved in cooling the engine?
那么，冷却发动机涉及哪些零件？
Cooling system parts
1)Water pump
2)Radiator
3)Thermostat
4)Coolant temperature sensor (cts)
5)Coolant(antifreeze+water)
冷却系统零件
1）水泵
2）散热器
3）温控器
4）冷却液温度传感器（cts）
5）冷却液（防冻液+水）
Frist:the Water Pump
Water Pump is the Heart of the Cooling System Which Pumps the Coolant.it Consists of an Impeller,a Pulley and an O-ring. the Impeller is Sriven by the Engine Drive Belt Through a Pulley.
首先：水泵
水泵是泵送冷却液的冷却系统的心脏。它由叶轮，皮带轮和O形圈组成。叶轮通过皮带轮由发动机传动皮带驱动。
Second:the Radiator
The Radiator is a Heat Exchanger Used to Transfer the Excess Heat Developed by Engine to the Atmosphere.
The Radiator is Having an Inlet Port ,outlet Port,a Drain Plug and a Radiator Pressure Cap.
The Radiator Pressure Cap Plays a Vital Role in the Cooling System.
其次：散热器
散热器是一种热交换器，用于将发动机产生的多余热量传递到大气中。
散热器有一个进气口，一个排气口，一个放油塞和一个散热器压力盖。
散热器压力帽在冷却系统中起着至关重要的作用.
Next:the Thermostat
The Thermostat is a Valve Which Regulates the Flow of the Coolant and Helps to Maintain the Proper Operating Temperature for the Engine.
The Thermostat Consists of a Rfame,charge Cylinder,main Valve,main Spring ,bypass Valve and Secondary Spring.
再者：温控器
温控器是一个调节冷却液流量并帮助维持发动机适当工作温度的阀。
温控器由一个油缸，进油缸，主阀，主弹簧，旁路阀和辅助弹簧组成。
The Coolant Temperature Sensor
The Coolant Temperature Sensor is Used to Monitor the Engine Temperature. the Ecu Will Use This Data to Manage Fuel Injection and Ignation Time.
Some Engines Have More Than One Coolant Temperature Sensor. the Data is Also Used to Control the Radiator Fan and to Update the Temperature Gauge on the Driver Console.the Coolant Temperature Sensor Consists of a Sensing Probe and an Electrical Connector
接下来：冷却液温度传感器
冷却液温度传感器用于监控发动机温度。Ecu将使用此数据来管理燃油喷射和点火时间。
有些发动机的冷却液温度传感器超过一个。数据还用于控制散热器风扇和更新驾驶员控制台上的温度表。冷却液温度传感器由传感探头和电气连接器组成。
Most Coolant Temperature Sensors Are Negative Temperature,which Means As the Temperature Increases, the Resistance Will Decrease. the CTS Can Be a Two Pin Type or a Three Pin Type,depending on the Make of the Vehicle.
多数冷却液温度传感器均为负温度，这意味着随着温度的升高，电阻会降低。CTS可以是两针型也可以是三针型，具体取决于车辆的品牌。
How They Working?
这些零件之间是如何运作的呢?
These Are the Main Parts Involved in an Engine Cooling System,how These Parts Works Together?
这些是发动机冷却系统中涉及的主要零件，这些零件如何协同工作？
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