Engine cooling system
1. damper body; 2. To the radiator; 3. Outlet pipe; 4. To the radiator; 5. Bypass pipe; 6. Pump; 7. From the radiator; 8. Inlet pipe; 9. From the heater; 10. To the heater
Cooling system thermostatically controlled, high pressure
Centrifugal coolant pump, thermostat with expanding working fluid. After the engine warms up to normal operating temperature, the thermostat opens, causing fluid to flow into the radiator, which cools and re-enters the engine. The cooling system is connected to the atmosphere by a radiator plug, which has a control valve. This design provides an increase in the boiling point of the liquid and the efficiency of cooling the liquid in the radiator. If the pressure in the cooling system exceeds the level at which the spring-loaded control valve of the radiator plug is activated, then under the influence of pressure the valve rises from the seat and part of the liquid flows through the bypass pipe into an additional expansion tank with coolant. When the system cools, excess fluid flows back into the radiator.
The tank maintains the liquid level in the system and at the same time is a reservoir for receiving superheated liquid. This type of cooling system is called closed because the fluid flowing out through the plug valve is stored for later use.
Heating system
The heating system includes a fan and a radiator mounted in a single housing under the right side of the front panel of the body, hoses for supplying and discharging coolant from the engine cooling system, and a control panel for heating / cooling air in the cabin, displayed on the front panel of the body. The coolant heated by the engine flows through the heater core. The heating mode is set by opening the damper, as a result of which the heater body communicates with the interior space. A switch on the control panel controls the operation of the fan that blows air through the heatsink.
Air conditioning system
The air conditioning system consists of a condenser mounted in front of the radiator, an evaporator mounted next to the heater radiator, a compressor mounted on the engine, a water separator with a high pressure reducing valve, hoses and pipelines connecting all of these units.
The fan directs the flow of air from the passenger compartment to the evaporator radiator, where heat is transferred from the air to the refrigerant. In the evaporator radiator, the refrigerant boils with the formation of low-pressure steam, which also provides heat extraction. The compressor circulates the heated refrigerant, maintaining its increased pressure, from the evaporator to the condenser, where the refrigerant is cooled, and back to the evaporator.