| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed circuit comprises fuse, fan motor with its shaft supporting the fan, thermistor and temperature indicator, amplifier, controlled flip-flop, power switch and diode. Positive bus of vehicle body circuit is connected with temperature indicator 1st terminal and, via aforesaid fuse, with positive terminals of amplifier power supply line, controlled flip-flop, diode cathode and 1st terminal of fan motor. The 2nd terminal of temperature indicator is connected with thermistor and amplifier input. The amplifier output is connected with controlled flip-flop input. The flip-flop output is connected to power switch control input. Thermistor 2nd output terminal, power switch 1st output terminal, negative terminals of amplifier supple line and controlled flip-flop are connected with the vehicle body negative bus. Power switch 2nd output terminal is connected to diode anode and fan motor 2nd output terminal. Additionally, proposed system incorporates oil pressure gauge and 2nd amplifier. Oil pressure gauge output terminal is connected to 2nd amplifier input, the amplifier 2nd output being connected with amplifier 2nd input. Oil pressure gauge 2nd output terminal and 2nd amplifier supply line negative output terminal are connected to aforesaid negative bus. Positive bus of vehicle body circuit is connected, via fuse, with 2nd amplifier supply line output terminal. ^ EFFECT: improved ICE temperature operating conditions, longer life. ^ 1 dwg |
