COMBUSTOR AND MULTI COMBUSTOR INCLUDING THE COMBUSTOR, AND COMBUSTING METHOD

摘要

A combustor, a multi-combustor including the same, and a combusting method are provided to raise combustion efficiency by designing a fuel injection port according to combustion characteristics and to reduce combustion instability by decreasing harmful exhaust gas. A combustor comprises a duct(112) that has one side for receiving gas and the other side for exhausting the gas. A first injection member is installed at the other side of the duct and has a plurality of first injection holes(114) through which first fuel is injected. A switching member is installed at an inlet of the first injection holes and has first holes and second holes, which correspond to the first injection holes. One of the first and second holes is connected with the first injection holes and the other one of the first and second holes is closed according to movement of the switching member. The first and second holes are alternatively arranged.