FIELD: engine engineering. SUBSTANCE: system has an oil heater mounted inside the crankcase of the engine and constructed as a surface-distributing temperature-sensitive electric heater. The control unit has amplifier, threshold element, and two balancing resistors. The adjacent arms of the bridge are formed by the heaters and opposite arms of the bridge are formed by the balancing resistors. The amplifier is connected across the bridge. The output of the bridge is connected with a commutation unit through the threshold element and time relay. EFFECT: improved design. 1 dwg
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