Disclosed are heat exchanger of exhaust gas recirculation line, inlet cone thereof and vehicle device

Disclosed are a heat exchanger of an exhaust gas recirculation line, an inlet cone thereof and a vehicle device. The utility model relates to an inlet conical body of a heat exchanger of an exhaust gas recirculation pipeline. The heat exchanger comprises an effective heat exchange part (33) with a heat-carrying fluid circulation side and an exhaust gas circulation side. The inlet cone has: a single exhaust gas inlet (49) having an inlet axis (A1); a single exhaust gas outlet (51) leading to the exhaust gas flow side and having an outlet axis (A2); the inlet cone (35) internally defines an exhaust gas passage providing an increased passage cross-section to the exhaust gas from the exhaust gas inlet (49) to the exhaust gas outlet (51); an angle of less than 90 DEG is formed between the inletaxis (A1) and the outlet axis (A2). The utility model further relates to a corresponding heat exchanger of the exhaust gas recirculation pipeline and a vehicle device. The arrangement can reduce thepressure loss between the