FIELD: machine building.
SUBSTANCE: invention relates to a combustion chamber system and a device for selective non-catalytic reduction, in particular to a nozzle for introducing a reagent into a combustion chamber. Nozzle comprises housing with cavity, barrier for cavity, intermediate disc between housing and barrier, having opening for passage of reagent, slot for introduction of reagent, the first slot between the body and the intermediate disc, the second slot between the barrier and the intermediate disc and/or at least one slot has at least one curvilinear edge which defines the variable size of the slot.
EFFECT: invention provides for evaporation of reagent on large area around nozzle.
14 cl, 20 dwg
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