Exhaust line for thermal combustion engine of car, has exhaust branches joined in connection point to form gathered line, and depollution device eliminating pollutant in exhaust fumes by injection of depollution agent by injection module

摘要

The line has two exhaust branches (3a, 3b) connected with turbo compressors (1, 2). The exhaust branches are joined in a connection point (P) to form an exhaust gathered line (3c). A depollution device (6) eliminates a pollutant in exhaust fumes by preliminary injection of a depollution agent by an injection module (7) carried by the line. The injection module is placed in one of the exhaust branches. The exhaust branches are provided with auxiliary depollution attachments (4a, 4b). Two sets of temperature sensors (9a, 9b, 10a, 10b) are provided with the branches. An independent claim is also included for a method for injecting a depollution agent in an exhaust line of an overfeeding system.