수리 사례

2026. 6. 30. 작업

증상

what in the thermostat opens when it reaches a certain temperature?

처리 내용

The spring remains largely the same. There is a capsule of thermoreactive "wax" which heats up and expands, acting against the "closed" spring pressure, and causing the "valve" section to lift allowing coolant flow to the heat exchanger "radiator" to lower coolant temperature. If it's flowing through the thermostat, it's going to the radiator for heat exchange. If it's bypassed , it is recirculated in the engine to raise operating termperature to an ideal designed setpoint. The "copper" you mentioned merely serves as the housing to the thermal expansion material, and is usually chosen because of copper's excellent thermal conductivity (around 385 W/m K - better than gold - but less than diamond at 1000 W/m K. But a diamond thermostat capsule would probably be a bit expensive... ) This process is not sudden or binary; the Valve section (yellow hat looking thing in the diagram) may open a little bit, or completely depending on the termperature acting on the thermal capsule. At some point