发明名称 |
MULTI-SECTION NOISE SUPPRESSOR |
摘要 |
FIELD: machine building.SUBSTANCE: noise suppressor contains a cylindrical casing, end inlet nozzle rigidly connected with central pipe made with perforation. Between the casing and central pipe at least one perforated pipe is located. Pipes are located coaxially with possibility to create resonant cavities. Between the casing and perforated pipe, and in end part of the central pipe the sound absorbing elements are installed. Porosity of the sound absorbing element located between the casing and perforate pipe by 2.5?5.0 times is below the porosity of the sound absorbing element in end part of the central pipe. Sound absorbing elements comprise a smooth surface and a perforated surface between which a multilayer sound absorbing structure is placed and consists of three layers of sound-absorbing material.EFFECT: increased efficiency of sound suppression.2 dwg |
申请公布号 |
RU2568799(C1) |
申请公布日期 |
2015.11.20 |
申请号 |
RU20140125708 |
申请日期 |
2014.06.25 |
申请人 |
KOCHETOV OLEG SAVEL'EVICH |
发明人 |
KOCHETOV OLEG SAVEL'EVICH;STAREEVA MARIJA OLEGOVNA;STAREEVA MARIJA MIKHAJLOVNA;STAREEVA ANNA MIKHAJLOVNA;KHODAKOVA TAT'JANA DMITRIEVNA |
分类号 |
F01N1/04 |
主分类号 |
F01N1/04 |
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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