The damping system comprises at least one resonant acoustic cavity disposed around the combustion chamber and having a shape and dimensions such that it functions simultaneously as a quarter-wave resonator and with tangential coupling the resonant acoustic cavity comprises: a) a main annular part whose half axial section has a very elongate shape with a width dimension “e”which is very small compared to its longitudinal dimension “L1”which extends substantially parallel to the axis of symmetry of the combustion chamber, the mean radius “R”of the main ann...
A damping system for high frequency combustion instabilities in a combustion chamber of a rocket engine comprising an injection head and an outer wall extending from said injection head downwardly around said combustion chamber, said outer wall comprising means forming a nozzle throat and said outer wall extending further downwardly from said nozzle throat to define an open ejection cone, wherein the system comprises at least one resonant acoustic cavity disposed around the combustion chamber and having a shape and dimensions such that it functions as a ...
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