发明名称 |
TUBULAR RECTANGULAR NOISE SUPPRESSOR BY KOCHETOV |
摘要 |
FIELD: machine building. ^ SUBSTANCE: invention refers to procedure of noise suppressing. The noise suppressor consists of a case, of inlet and outlet branches and of a sound absorber. The sound absorber includes a rigid wall. A profiled layer out of sound absorbing material is attached to this wall. Sound absorbing material is produced by alteration of semi-sphere or partially spherical surfaces so, that between the wall and the layer of sound absorbing material there are continuous intervals alternating with air intervals formed with semi-sphere. The profiled layer is also attached to a perforated element of the case. This profiled layer consists of sound absorbing material obtained at alternation of semi-sphere or partially spherical surfaces. This arrangement facilitates alteration of continuous and air gaps formed with semi-sphere between the perforated element of the case with acoustic transparent material and the layer of sound absorbing material. Also the profiled layer at the rigid wall is a mirror reflection of the profiled layer at the perforated element of the case relative to symmetry line 0-0 of the solid profiled layer. ^ EFFECT: increased efficiency of noise suppressing. ^ 3 dwg |
申请公布号 |
RU2392532(C1) |
申请公布日期 |
2010.06.20 |
申请号 |
RU20090100988 |
申请日期 |
2009.01.15 |
申请人 |
KOCHETOV OLEG SAVEL'EVICH |
发明人 |
KOCHETOV OLEG SAVEL'EVICH |
分类号 |
F16L55/033;F24F13/24;G10K11/168 |
主分类号 |
F16L55/033 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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