Patent ID: 11867399
Assignee: DOOSAN ENERBILITY CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A micro-mixer comprising:
a mixing passage formed in a cylindrical shape by a wall and extending from an inlet to an outlet along a central axis;
a first fuel supply passage disposed inside of the mixing passage and extending from a first fuel inlet port formed on a first location on the wall of the mixing passage to a second fuel inlet port formed on a second location one the of the wall of the mixing passage, wherein a first portion of a fuel is supplied radially inward from outside of the wall to the first fuel supply passage through the first fuel inlet port and through the second fuel inlet port relative to the central axis;
a second fuel supply passage disposed in the mixing passage and extending from a third fuel inlet port formed on a third location on the wall of the mixing passage to a fourth fuel inlet port formed on a fourth location on the wall of the mixing passage, wherein a second portion of the fuel is supplied radially inward from outside of the wall to the second fuel supply passage through the third fuel inlet port and through the fourth fuel inlet port relative to the central axis;
a first fuel supply port formed in the first fuel supply passage to supply the first portion of the fuel to the mixing passage; and
a second fuel supply port formed in the second fuel supply passage to supply the second portion of the fuel to the mixing passage,
wherein both of the first fuel inlet port and the third fuel inlet port are formed axially upstream from both of the second fuel inlet port and the fourth fuel inlet port relative to the central axis such that the first fuel supply passage and the second fuel supply passage appear to cross each other without physically intersecting into each other.