EP1051562B1 - Schalldämpfer mit einem nebenschlussresonator - Google Patents
Schalldämpfer mit einem nebenschlussresonator Download PDFInfo
- Publication number
- EP1051562B1 EP1051562B1 EP98963457A EP98963457A EP1051562B1 EP 1051562 B1 EP1051562 B1 EP 1051562B1 EP 98963457 A EP98963457 A EP 98963457A EP 98963457 A EP98963457 A EP 98963457A EP 1051562 B1 EP1051562 B1 EP 1051562B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- tubular elements
- duct
- silencer
- resonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
- F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/023—Helmholtz resonators
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/20—Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers
Definitions
- the invention relates to a silencer with a shunt resonator according to the genus of the main claim.
- a resonator is known from DE 1 147 769 which is used for damping Sound frequencies are provided in flowing gases.
- the resonator a resonator chamber arranged in a shunt around a gas-carrying line on.
- Pipe elements originate from this gas-carrying line, which protrude into the cavity and the line with the cavity connect.
- the dimensions of the pipe elements and their number will be determined by the desired resonance frequency.
- the arrangement of several Pipe elements can be made in a plane perpendicular to the direction of flow. With further training, several rows lying next to each other can also be used be arranged by tubular elements.
- the invention has for its object a silencer of the beginning mentioned type so that it is easy and inexpensive to manufacture can be.
- the muffler according to the invention is advantageously suitable starting from of the generic type, the task with the characteristic Features to solve the main claim. Because the acoustically effective openings in the intake duct consist of tubular elements, that extend from the intake duct into the housing volume of the shunt resonator can extend through a suitable dimensioning and arrangement of these Pipe elements have a positive influence on the damping behavior.
- the silencer according to the invention can be manufactured in that the area with the pipe elements in the sound-conducting duct as an injection molded part is insertable between two ends in the intake duct and that the enclosing Housing volume of the shunt resonator with one each Half of the housing are attached to one end of the channel and the two The halves of the housing, including the injection molded part, can be firmly joined together are.
- the position of the tubular elements can be used advantageously to the resonance frequency in relation to the center of the shunt resonator in the longitudinal direction so be postponed that damping losses occurring through interaction with other components surrounding the silencer in frequency ranges are relocated, in which this does not interfere; in the best case can in turn lead to a gain in damping.
- the sound-conducting channel the intake duct for the intake air of an internal combustion engine and the damping sound emissions are caused by the intake impulses of the individual
- Cylinder especially a diesel engine.
- the pipe elements are also manufactured separately and individually at the Manufacture of the injection molded part added and overmolded.
- a growing length L of the tubular elements 6 can thus bring about a reduction in the resonance frequency f res .
- This has advantages for use in internal combustion engines because the shunt resonator 10 mainly contributes to damping in its resonance range and the high sound energies occur in the intake duct at relatively low frequencies.
- the length L of the individual tube elements 6 makes them acoustic overall effective length set. With a given housing volume V, one fixed diameter D of the tubular elements 6 and with a corresponding The selected length L of the tubular elements 6 can thus provide an optimal damping range for the silencer.
- damping losses also occur with this arrangement.
- the position of the so-called break-in frequencies f A and f B , at which these damping losses occur, can be influenced by the width and position of the area in which the tubular elements 6 are located in the intake duct 1 and thus also within the shunt resonator 10.
- the dimension a shown in FIG. 1 and the number z of the tubular elements 6 can be changed here in such a way that the undesired damping losses are shifted into frequency ranges in which this is less disturbing. If, for example, the number z of the rows or the diameter D of the tubular elements 6 is increased, the resonance frequency f res becomes larger because of the thus increased acoustically effective area A. However, if the position of the area of the tubular elements 6 is changed from the central position in the shunt resonator 10, then there is no influence to be considered on the resonance frequency f res , but it does affect the position of the break-in frequencies f A and f B. The decisive factor here is dimension a, which indicates the position of the area of the tubular elements 6 relative to the exciter side in the intake duct 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Exhaust Silencers (AREA)
Description
- 1 =
- schallführender Kanal (Ansaugkanal)
- 2 =
- Ansaugluft
- 3 =
- Ende des Ansaugkanals 1
- 4 =
- Ende des Ansaugkanals 1
- 5 =
- Spritzgussformteil
- 6 =
- Rohrelemente
- 7 =
- Gehäusehälfte
- 8 =
- Gehäusehälfte
- 9 =
- .....
- 10 =
- Nebenschlussresonator
- 11 =
- Kurve eines Dämpfungsverlaufs
- 12 =
- Kurve eines Dämpfungsverlaufs
- 13 =
- Kurve eines Dämpfungsverlaufs
Claims (5)
- Schalldämpfer mit einem Nebenschlußresonator, bei demder Nebenschlußresonator (10) durch ein äußeres, den schallführenden Kanal (1) in einem vorgegebenen Bereich umschließendes Gehäusevolumen gebildet ist, und bei demder schallführende Kanal (1) mit dem Nebenschlußresonator (10) über Öffnungen (6) verbunden ist,die Öffnungen aus Rohrelementen (6) bestehen, die sich vom schallführenden Kanal (1) in das Gehäusevolumen des Nebenschlußresonators (10) erstrecken,der Bereich mit den Rohrelementen (6) im schallführenden Kanal (1) als Spritzgußformteil (5) zwischen zwei Enden (3,4) des Kanals (1) einfügbar ist und daßdas umschließende Gehäusevolumen des Nebenschlußresonators (10) mit jeweils einer Gehäusehälfte (7, 8) an jeweils einem Ende (3,4) des Kanals (1) angebracht sind und die beiden Gehäusehälften (7,8) unter Einschluß des Spritzgußformteils (5) fest zusammenfügbar sind.
- Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daßdie Anzahl und Lage der Rohrelemente (6) sowie ihre Länge (L) und ihr Durchmesser (D) so gewählt sind, daß sich ihre akustische Dämpfungsgewinne in einem vorgegebenen Frequenzbereich ausbildet.
- Schalldämpfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daßdie Lage der Rohrelemente (6) im Verhältnis zur Mitte des Nebenschlußresonators (10) in Längsrichtung so gewählt ist, daß auftretende Dämpfungsverluste in Frequenzbereichen verlagert sind, die in Zusammenwirkung mit den, den Schalldämpfer umgebenden Bauteilen wiederum zu einem Dämpfungsgewinn führen.
- Schalldämpfer nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daßder schallführende Kanal der Ansaugkanal (1) für die Ansaugluft eines Verbrennungsmotors ist und die zu dämpfenden Schallemissionen durch die Ansaugimpulse der einzelnen Zylinder, insbesondere eines Dieselmotors hervorgerufen werden.
- Schalldämpfer nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daßdie Rohrelemente (6) separat hergestellt sind und einzeln bei der Herstellung des Spritzgußformteils (5) angefügt und umspritzt werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19751940A DE19751940C1 (de) | 1997-11-24 | 1997-11-24 | Schalldämpfer mit einem Nebenschlußresonator |
DE19751940 | 1997-11-24 | ||
PCT/EP1998/007296 WO1999027237A1 (de) | 1997-11-24 | 1998-11-14 | Schalldämpfer mit einem nebenschlussresonator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1051562A1 EP1051562A1 (de) | 2000-11-15 |
EP1051562B1 true EP1051562B1 (de) | 2002-03-06 |
Family
ID=7849612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98963457A Expired - Lifetime EP1051562B1 (de) | 1997-11-24 | 1998-11-14 | Schalldämpfer mit einem nebenschlussresonator |
Country Status (8)
Country | Link |
---|---|
US (1) | US6341663B1 (de) |
EP (1) | EP1051562B1 (de) |
JP (1) | JP2001524635A (de) |
BR (1) | BR9815023A (de) |
CA (1) | CA2311383C (de) |
DE (2) | DE19751940C1 (de) |
ES (1) | ES2174526T3 (de) |
WO (1) | WO1999027237A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101466949B (zh) * | 2006-05-03 | 2012-01-25 | 惠而浦股份有限公司 | 用于制冷压缩机的声学消声器中的谐振器装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19902951A1 (de) * | 1999-01-26 | 2000-07-27 | Mann & Hummel Filter | Ansaugvorrichtung mit einem Leitungsabschnitt zur Dämpfung des Ansauggeräusches |
US7159692B1 (en) * | 1999-10-11 | 2007-01-09 | Silentor Holding A/S | Silencer |
US8820325B2 (en) * | 2002-10-11 | 2014-09-02 | The Regents Of The University Of California | Bymixer apparatus and method for fast-response, adjustable measurement of mixed gas fractions in ventilation circuits |
DE202005007714U1 (de) * | 2005-05-11 | 2006-09-21 | Mann + Hummel Gmbh | Schalldämpfer |
KR100710342B1 (ko) * | 2006-02-07 | 2007-04-23 | 엘지전자 주식회사 | 소음기 |
KR101807783B1 (ko) * | 2012-06-18 | 2018-01-18 | 목포해양대학교 산학협력단 | 공명통을 이용한 선박 프로펠러용 방음 덕트 |
EP3467276B1 (de) * | 2013-02-12 | 2021-04-07 | Faurecia Emissions Control Technologies, USA, LLC | Fahrzeugabgasanlage mit resonanzdämpfung |
CN104500178B (zh) * | 2013-11-27 | 2016-11-09 | 广东西电动力科技股份有限公司 | 一种防治柴油发电机组低频噪声的复合式消声器 |
JP7005866B2 (ja) * | 2016-03-14 | 2022-01-24 | 株式会社竹中工務店 | 排気音低減装置 |
KR101943607B1 (ko) * | 2017-05-18 | 2019-01-29 | 성균관대학교산학협력단 | 음향 공진장치 |
DE102017130661A1 (de) * | 2017-12-20 | 2019-06-27 | Montaplast Gmbh | Breitbanddämpfer für einen Kraftfahrzeug-Motor |
DE102022001220A1 (de) * | 2022-04-09 | 2023-10-12 | Hydac Technology Gmbh | Dämpfungsvorrichtung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE739460C (de) * | 1940-07-30 | 1943-09-27 | Eberspaecher J | Schalldaempfung in Leitungen mit glattem Durchgang, an welche Resonatoren verschiedener Eigenfrequenz angeschlossen sind |
US2765044A (en) * | 1951-07-18 | 1956-10-02 | Hatte Jacques Louis | Sound filtering apparatus |
DE1147769B (de) * | 1959-04-10 | 1963-04-25 | Sulzer Ag | Resonator |
DE1244476B (de) * | 1960-12-23 | 1967-07-13 | Sulzer Ag | Auspuffschalldaempfer |
DE2508261A1 (de) * | 1975-02-26 | 1976-09-09 | Karl Wilhelm Dipl Sessinghaus | Auspufftopf fuer brennkraftmaschinen |
US4231447A (en) * | 1978-04-29 | 1980-11-04 | Rolls-Royce Limited | Multi-layer acoustic linings |
IT7853327V0 (it) * | 1978-05-17 | 1978-05-17 | Fiat Spa | Silenziatore di scarico per trattori agricoli |
CH647302A5 (de) * | 1979-06-06 | 1985-01-15 | Alusuisse | Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen. |
JPH07101002B2 (ja) * | 1987-12-22 | 1995-11-01 | 日産自動車株式会社 | 共鳴型消音器 |
DE9419022U1 (de) * | 1994-11-26 | 1995-01-26 | Fa. J. Eberspächer, 73730 Esslingen | Resonator-Schalldämpfer |
US5545860A (en) * | 1995-02-21 | 1996-08-13 | Ford Motor Company | Discharge muffler for an automotive compressor and method for making same |
-
1997
- 1997-11-24 DE DE19751940A patent/DE19751940C1/de not_active Expired - Fee Related
-
1998
- 1998-11-14 DE DE59803310T patent/DE59803310D1/de not_active Expired - Lifetime
- 1998-11-14 EP EP98963457A patent/EP1051562B1/de not_active Expired - Lifetime
- 1998-11-14 WO PCT/EP1998/007296 patent/WO1999027237A1/de active IP Right Grant
- 1998-11-14 US US09/555,054 patent/US6341663B1/en not_active Expired - Lifetime
- 1998-11-14 BR BR9815023-5A patent/BR9815023A/pt active Search and Examination
- 1998-11-14 CA CA002311383A patent/CA2311383C/en not_active Expired - Fee Related
- 1998-11-14 JP JP2000522357A patent/JP2001524635A/ja not_active Withdrawn
- 1998-11-14 ES ES98963457T patent/ES2174526T3/es not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101466949B (zh) * | 2006-05-03 | 2012-01-25 | 惠而浦股份有限公司 | 用于制冷压缩机的声学消声器中的谐振器装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2311383A1 (en) | 1999-06-03 |
WO1999027237A1 (de) | 1999-06-03 |
DE19751940C1 (de) | 1999-03-25 |
US6341663B1 (en) | 2002-01-29 |
DE59803310D1 (de) | 2002-04-11 |
EP1051562A1 (de) | 2000-11-15 |
BR9815023A (pt) | 2002-04-30 |
ES2174526T3 (es) | 2002-11-01 |
CA2311383C (en) | 2007-05-15 |
JP2001524635A (ja) | 2001-12-04 |
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