任何液冷式汽车发动机都有一个称为恒温器的小型设备,它位于发动机和散热器之间。大多数汽车恒温器的直径约为5厘米,其作用是在发动机预热之前,阻止冷却液流入散热器。发动机不热时,冷却液不会流经发动机。一旦发动机达到其工作温度(通常为约95℃),恒温器就将开启。通过让发动机尽快预热起来,恒温器可减少发动机的磨损、沉积物和排放物。如果有机会检测一个恒温器,您 Any liquid-cooled car engine has a small device called a thermostat located between the engine and the radiator. Most car thermostats have a diameter of about 5 centimeters and prevent the coolant from flowing into the radiator before the engine is warmed up. The coolant will not flow through the engine when the engine is not hot. Once the engine reaches its operating temperature (usually about 95 ° C), the thermostat will be on. By allowing the engine to warm up as quickly as possible, the thermostat reduces engine wear, deposits and emissions. If you have a chance to test a thermostat, you