Standardization method for introducing device for introducing e.g. urea solution into exhaust pipe of combustion engine for car, involves installing deflector upstream reference fluid introducing unit to generate reference aeraulic flow

摘要

The method involves characterizing a reference aeraulic flow of exhaust gas downstream a fluid introducing device. A reference device is provided to generate desired aeraulic flow of exhaust gas, where the reference device comprises a reference unit for introducing a reference fluid. An exhaust pipe (1) is defined and a reference fluid introducing device (2) is arranged in the exhaust pipe. A deflector is defined and installed upstream the reference fluid introducing unit in the exhaust pipe to generate a reference aeraulic flow downstream the reference fluid introducing unit. An independent claim is also included for a motor vehicle comprising a fluid introducing device.