FIELD: power industry.
SUBSTANCE: proposed tube unit includes a housing that limits the fuel space and a space for cooling fluid located downstream from the fuel space and separated from it with an intermediate wall. The tube unit also includes tubes that pass through said housing and each of which is connected through flow to said fluid supply chamber and the combustion chamber downstream from the tube unit and also includes a back plate, located at the downstream end of the cooling fluid space. In this case, the back plate has an opening that extends therethrough to assist in mixing the fluids, coming from the space for the cooling fluid and tubes. A combustion unit is also presented.
EFFECT: invention enables to reduce thermal load on the back plate and tubes, and increases durability of the fuel injection unit.
10 cl, 8 dwg
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