FIELD: transport engineering.
SUBSTANCE: invention relates to heating and ventilating systems of automobiles. Proposed system has system of pipes, larger and smaller coolant circulation circuits, heater cock and radiator, electric motor 15 of electric fan, pulse-width modulation circuit 7, diode 13, power switch 10. System is furnished also with stabilizer 16, interior temperature transmitter 12, heater temperature transmitter 1, interior temperature setter 3, first and second difference amplifiers 4 and 5, logic circuit 6, amplifier 8, bipolar emitter-follower 9, second diode 11 and capacitor 12.
EFFECT: provision of automatic control of preset temperature.
2 dwg
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| DC MOTOR CONTROL DEVICE | 2015 |
|
RU2584005C1 |
