Thermostat is a device for maintaining a static (constant) temperature, as its name implies. There are thermostats of different designs in many devices and mechanisms, from water heaters to refrigerators. There is also a thermostat in a car's internal combustion engine (liquid-cooled, of course). In a car, the thermostat regulates the temperature of the coolant (antifreeze): it accelerates the warm-up of a cold engine and provides heat removal from the hot one. Therefore, the engine works more efficiently and more comfortably for the driver, especially in winter - without a thermostat, the stove would usually blew cold air.

1. X-TRAIL (T30)
2. X-TRAIL SUV (T30)
3. PRIMERA (P12)
4. PRIMERA Estate (WP12)
5. PRIMERA Traveller (WP12)
6. PRIMERA Hatchback (P12)
7. CARAVAN Van (E25)
8. URVAN Van (E25)
9. X-TRAIL (T31)
10. X-TRAIL SUV (T31)
11. CARAVAN Bus (E25)
12. URVAN Bus (E25)
13. KOLEOS I (HY_)
14. KOLEOS I SUV (HY_)
15. ALTIMA (L31)
16. URVAN Bus (E24)
17. URVAN Bus (E24, V2_)
18. TEANA I (J31)
19. MAXIMA I (J31)
20. CEFIRO I (J31)
21. See more in applications

The principle of the thermostat work

The classic BLUE PRINT brand Thermostat, coolant is a movable valve that moves due to a change in the external environment - heating or cooling of antifreeze. The thermostat is made of a thermoelement filled with a substance resembling wax in structure - ceresin, with the addition of copper powder, graphite or aluminum for better thermal conductivity. At a certain temperature of the antifreeze, ceresin expands, opening the thermostat valve. When the motor cools down, ceresin contracts and the thermostat closes again.