EXHAUST GAS UTILISATION SYSTEM, PARTICULARLY FOR AUTOMOBILE COMPRISING FEED PUMP Russian patent published in 2018 - IPC F02G5/02 F01K23/06 

FIELD: engines and pumps.

SUBSTANCE: exhaust gas utilisation system for automobile with internal combustion engine comprises the feed pump. According to the invention, at least one temperature sensor (T_G, T_A) is installed in the exhaust gas system for direct or indirect determination of actual temperature of the working medium. At least one said temperature sensor (T_G, T_A) is connected to a control unit (S) for controlling the pump drive. In the control unit (S), at least one limit value for the temperature is set, with which the actual value of the working medium temperature is compared. When the limit value of the temperature is not reached by the control unit (S), the pump drive and the pump feed are switched off, and if this limit value exceeds or at least one limit value is exceeded by a given value which is higher than the second limit value of the temperature, the pump drive and the pump feed are switched on.

EFFECT: invention provides the use of exhaust gases to protect the feed pump from damage at low temperatures.

21 cl, 3 dwg