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2 292 467

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(51)

IPC

F01N1/00(2006-01-01)

(21) (22)

Application

2004133820/06, 2004-11-19

(24)

Start date

2004-11-19

(22)

Actual filing date

2004-11-19

(45)

Published

2007-01-27

(72)

Inventor

Afanas'Ev Andrej NikolaevichGalevko Vladimir VladimirovichGalevko Jurij VladimirovichIvanova Tat'Jana Vasil'EvnaManyshev Jurij ValentinovichNadarejshvili Givi GuramovichPopov Jurij NikolaevichRadin Igor' NikolaevichStarobor Viktor MikhajlovichSukharev Andrej AleksandrovichTjurin Viktor Petrovich

(73)

Holder

Manyshev Jurij ValentinovichNadarejshvili Givi Guramovich

MUFFLER OF INTERNAL COMBUSTION ENGINE Russian patent published in 2007 - IPC F01N1/00

Abstract RU 2292467 C2

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed muffler has housing with cross-section width S=(2.5-12/0)d, cross-section height H=(0.401.0)S, length of housing L=(4.0-26/0)d, side walls, inlet branch pipe, diameter d, outlet branch pipe, diameter d, perforated shell 6, length L1=(1..0-0.2)L. Cross section of perforated shell is star-like, housing is divided by partition into chamber of length L1=(o.56-0.59)L and chamber of length L2=(0.41-0.44)L. Space between housing and perforated shell is filled up with sound absorbing material.

EFFECT: improved efficiency of noise damping in low-frequency and high frequency ranges of sound frequencies at low counterpressure owing to increased area of contact of noise waves with sound-absorbing material.

10 cl, 7 dwg

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RU 2 292 467 C2

Authors

Afanas'Ev Andrej Nikolaevich

Galevko Vladimir Vladimirovich

Galevko Jurij Vladimirovich

Ivanova Tat'Jana Vasil'Evna

Manyshev Jurij Valentinovich

Nadarejshvili Givi Guramovich

Popov Jurij Nikolaevich

Radin Igor' Nikolaevich

Starobor Viktor Mikhajlovich

Sukharev Andrej Aleksandrovich

Tjurin Viktor Petrovich

Dates

2007-01-27—Published

2004-11-19—Filed