VEHICLE EXHAUST SYSTEM AND EXHAUST GASES HEAT RECOVERY METHOD (EMBODIMENTS) Russian patent published in 2019 - IPC F01N5/02 F02D21/08 F02M26/22 

FIELD: transportation.

SUBSTANCE: invention can be used in exhaust systems of vehicles. Exhaust system of vehicle comprises exhaust gas recirculation (EGR) cooler (146), exhaust gas heat recovery (EGHR) main line (141) connected to EGR cooler (146), throttle (366) of exhaust gases, valve (142) EGR and passive one-way valve (143). Main (141) of exhaust gas heat recovery (EGHR) is connected to cooler (146) of EGR by means of branching down EGR cooler. Exhaust throttle (366) is located in outlet channel (348) before connection between main line (141) of exhaust gases heat recovery and outlet channel in front of catalytic neutraliser (71). EGR valve (142) is located behind EGR cooler (146) and is intended to control the exhaust gas flow to the engine inlet. Passive one-way valve (143) is located in line (141) of exhaust gases heat recovery and is intended for control of flow rate of exhaust gases along it. Flow rate of exhaust gases determines amount of heat transmitted by engine coolant. Embodiments of the exhaust gases heat recovery method are disclosed.

EFFECT: technical result consists in provision of temperature rise in hybrid vehicle cabin in conditions of cold start, therefore after its cabin heating its engine can be quickly switched off.

15 cl, 12 dwg