9.1.7. Cooling system

Features of the device

Fig. 9.11. Cooling system: 1 – stopper of a broad tank; 2 – broad tank; 3 – the bringing radiator hose; 4 – a hose from a radiator to a broad tank; 5 – the taking-away radiator hose; 6 – left tank of a radiator; 7 – aluminum tubes of a radiator; 8 – sensor of turning on of the electric fan; 9 – right tank of a radiator; 10 – drain stopper; 11 – radiator core; 12 – electric fan casing; 13 – krylchatka of the electric fan; 14 – electric motor; 15 – cogged pulley of the pump; 16 – krylchatka of the pump; 17 – gear belt of the drive of the camshaft; 18 – the taking-away heater radiator branch pipe; 19 – the bringing pump tube; 20 – a liquid supply hose to the starting arrangement of the carburetor; 21 – block of heating of the carburetor; 22 – final branch pipe; 23 – the bringing heater branch pipe; 24 – a hose of removal of liquid from the block of heating of the carburetor; 25 – thermostat; 26 – a hose from a broad tank to the thermostat

The device of the cooling system is shown in fig. 9.11.
The cooling system is liquid, the closed type, with compulsory circulation of liquid, with a broad tank.
The pump of cooling liquid of centrifugal type is put in action by a gear belt 17 of the drive of the mechanism of gas distribution.
The electric fan has the plastic four-blade krylchatka 13 established on a shaft of the electric motor 14 which inclusion and switching off is carried out from the sensor 8 of turning on of the electric fan.
The thermostat 25 with a firm thermosensitive filler has the main and additional valves. The beginning of opening of the main valve at a temperature of cooling liquid (87±2) °C, the course of the main valve at achievement of temperature of 102 °C not less than 8 mm.
The radiator is tubular and lamellar, aluminum, with plastic tanks 6 and 9, double-thread, with a partition in the left tank. Cooling liquid is filled in through a bulk mouth of a broad tank 2, a stopper 1 which has inlet and final valves. Pressure of the beginning of opening final the valve not less than 110 kPa (1,1 kgfs/cm2), inlet – 3–13 kPa (0,03–0,13 kgfs/cm2).