FIELD: technological processes.
SUBSTANCE: invention relates to injection elements (201) for injection of two fuel components (E1, E2) into combustion chamber, in particular, intended for rocket engine with at least one combustion chamber containing injector with one or multiple injection elements (201). Injection element (201) comprises first annular channel (206) for injection of first fuel component (E1) and second circular channel (207) for injection of second fuel component (E2), wherein second channel (207) is located coaxially outside first channel (206) and is adjacent to it, and, potentially, third circular coaxial channel (208) which is located outside second channel (207) and is adjacent to it. First channel (206) surrounds central body (205) of injection element (201), wherein central body (205) contains cavity (209) communicated with outer surface (212) of central body (205) and made with possibility of damping, at least one preset audio frequency f.
EFFECT: reduced effect of acoustic oscillations in combustion chamber.
10 cl, 7 dwg
