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. AVEO / KALOS Saloon (T250, T255)
2. AVEO / GENTRA Saloon (T250, T255)
3. AVEO Saloon (T250, T255)
4. LOVA Saloon (T250, T255)
5. KALOS Saloon (T250, T255)
6. AVEO / KALOS Hatchback (T250, T255)
7. AVEO U-VA Hatchback (T250, T255)
8. AVEO Hatchback (T250, T255)
9. CHARADE III (G100, G101, G102)
10. CHARADE Mk III (G100, G101, G102)
11. HIJET Platform/Chassis (S8_, S9_)
12. Hijet Maxx Platform/Chassis (S8_, S9_)
13. HIJET Bus (S85)
14. HIJET Van (S85)
15. SPARCAR Bus (S7_)
16. HIJET Bus (S7_)
17. SPARCAR Van (S7_)
18. HIJET Van (S7_)
19. HIJET Van (S8_)
20. HIJET Bus
21. See more in applications

The principle of the thermostat work

The classic GATES 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.