公开(公告)号：US5353598A

公开(公告)日：1994-10-11

申请号：US993013

申请日：1992-12-18

申请人： Andre Huck ,  Alain Kernilis ,  Jean-Paul Druart ,  Georges Dorville

发明人： Andre Huck ,  Alain Kernilis ,  Jean-Paul Druart ,  Georges Dorville

IPC分类号： F02K9/62 ,  F02K1/82 ,  G10K11/172 ,  F02C7/24

CPC分类号： G10K11/172 ,  F02K1/827 ,  F05D2200/11 ,  Y02T50/672

摘要： 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 "L.sub.1 " which extends substantially parallel to the axis of symmetry of the combustion chamber, the mean radius "R" of the main annular part being close to the equivalent radius of modes of oscillation to be damped, and b) an annular coupling part which originates from the main annular part and which opens into the combustion chamber near to a longitudinal or radial pressure anti-node, the annular coupling part having a length "L.sub.2 " in a half axial section and a width dimension "h" very much less than the sum of the longitudinal dimension "L.sub.1 " of the main annular part and the length "L.sub.2 " of the annular coupling part.

摘要翻译： 阻尼系统包括设置在燃烧室周围的至少一个谐振声腔，并且其形状和尺寸使得其作为四分之一波长谐振器同时工作，并且具有切向耦合，谐振声腔包括：a）主环形部分，其一半 轴向截面具有非常细长的形状，其宽度尺寸“e”与其基本上平行于燃烧室的对称轴延伸的纵向尺寸“L1”相比非常小，主环形的平均半径“R” 部分接近要阻尼的振荡模式的等效半径，以及b）环形耦合部分，其起始于主环形部分，并且通向靠近纵向或径向压力抗节点的燃烧室，环形耦合 在半轴部分具有长度“L2”的部分和宽度尺寸“h”非常小于主环形的纵向尺寸“L1”的总和 部分和环形联接部分的长度“L2”。