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. SUNNY I (B11)
2. SUNNY I Saloon (B11)
3. SENTRA I (B11)
4. SUNNY � (B11)
5. TSURU / HIKARI I (B11)
6. SUNNY I Coupe (B11)
7. SENTRA I Coupe (B11)
8. SUNNY � Coupe (B11)
9. TSURU SAMURAI I Coupe (B11)
10. SUNNY I Traveller (B11)
11. PULSAR I Traveller (B11)
12. SUNNY I Break (B11)
13. SUNNY � Traveller (B11)
14. TSURU I Traveller (B11)
15. SUNNY II (N13, B12)
16. PULSAR II Saloon (N13, B12)
17. SENTRA II (N13, B12)
18. SUNNY Mk II (N13, B12)
19. TSURU / HIKARI II (N13, B12)
20. PULSAR II (N13, B12)
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.