DEVICE FOR INJECTING A REDUCING AGENT FOR SELECTIVE CATALYTIC REDUCTION, AND ASSEMBLY COMPRISING AN ENGINE AND AN EXHAUST LINE PROVIDED WITH SUCH AN INJECTION DEVICE

摘要

The invention relates to a device (10) for injecting a reducing agent (10) for selective catalytic reduction, including: a piston (30) that is movable inside an injection chamber (38); a supply line (12) supplying the chamber with a reducing agent; a nozzle (16) for injecting the reducing agent at the output of the injection chamber; and a source (14) of fluid for actuating the piston. The invention enables a selective catalytic reduction system, capable of being built into a very small space, to be produced.