ACOUSTIC DAMPING SWIRL INJECTOR INSTALLED MODEL CHAMBER ASSEMBLY FOR REDUCTION OF COMBUSTION INSTABILITY

摘要

A model chamber assembly is provided to prevent the high frequency combustion instability generated during combustion easily by forming a back hole in a swirl injector. A model chamber assembly includes a plurality of swirl injectors(10) and a cylinder member(20). The swirl injector includes a passage(11) and an introduction port(12). A fuel is supplied to the introduction port. The introduction port is connected to the passage in the tangential direction of the passage so that the supplied fuel flows spirally in the passage. The cylinder member includes a combustion chamber(21). The fuel discharged through the passage of the swirl injector is introduced into the combustion chamber. Each of the swirl injectors includes a back hole(13). At least two of the back holes of the swirl injectors have different lengths.