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. LAND CRUISER 80 (_J8_)
2. LAND CRUISER (_J8_)
3. AUTANA (_J8_)
4. LAND CRUISER 100 (_J1_)
5. LAND CRUISER (_J1_)
6. LAND CRUISER AMAZON (_J1_)
7. LAND CRUISER CYGNUS (_J1_)
8. PRADO (_J1_)
9. LAND CRUISER 100 (_J1_, _J10_)
10. MACHO (_J1_)
11. ACCORD VI Coupe (CG)
12. ACCORD Mk VII Coupe (CG)
13. LAND CRUISER 200 (_J2_)
14. LAND CRUISER (_J2_)
15. LAND CRUISER 200 SUV (_J2_)
16. LAND CRUISER Pick-up (_J7_)
17. LAND CRUISER (_J7_)
18. CAREVACA (_J7_)
19. LAND CRUISER PRADO (_J7_)
20. LAND CRUISER 90 (_J9_)
21. See more in applications

The principle of the thermostat work

The classic VALEO 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.