DE19949241A1 - Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber - Google Patents

Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber

Info

Publication number
DE19949241A1
DE19949241A1 DE1999149241 DE19949241A DE19949241A1 DE 19949241 A1 DE19949241 A1 DE 19949241A1 DE 1999149241 DE1999149241 DE 1999149241 DE 19949241 A DE19949241 A DE 19949241A DE 19949241 A1 DE19949241 A1 DE 19949241A1
Authority
DE
Germany
Prior art keywords
outer jacket
chamber
internal combustion
combustion engines
turbosuperchargers
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.)
Withdrawn
Application number
DE1999149241
Other languages
German (de)
Inventor
Dietrich Denker
Marcus Tuerk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1999149241 priority Critical patent/DE19949241A1/en
Publication of DE19949241A1 publication Critical patent/DE19949241A1/en
Withdrawn legal-status Critical Current

Links

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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers

Abstract

Device for reducing sound conducted through air and solids due to fluid noises and stimulation of solid-borne noise caused by turbosuperchargers in internal combustion engines comprises an outer jacket (1) made by pressure molding a pipe. The outer jacket is provided with a center flange (10) and tubes (2) slide into the outer jacket to form a chamber.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur beitbandigen Absenkung von Strömungsgeräuschen bei gleichzeitiger Anwesenheit hoher Temperaturen und Drücke sowie geringen Bauräumen.The present invention relates to a device for the two-band lowering of Flow noise in the presence of high temperatures and pressures as well small installation space.

Derartige Geräusche kommen z. B. bei Abgasturboladern vor, die infolge hoher Drehzahlen nicht beherrschbare Unwuchten sowie Störungen durch fertigungsbedingte Verzüge (z. B. Schaufeln) aufweisen.Such noises come e.g. B. in exhaust gas turbochargers before, due to high speeds Uncontrollable imbalances and malfunctions due to production-related delays (e.g. Blades).

Diese lästigen Geräusche werden sowohl über Luftschall durch die Ladeluftführung transportiert als auch über Luft- und Körperschall abgestrahlt, so daß hinsichtlich dieser Mechanismen Lösungen gefunden werden müssen.These annoying noises are both airborne through the charge air duct transported as well as radiated by airborne and structure-borne noise, so that with regard to this Mechanisms solutions need to be found.

Dabei sind noch erschwerend Forderungen nach möglichst geringen Bauräumen und eine Realisierung wirtschaftlicher Verbindungen zur Bauteilumgebung und zur Gestaltung der Anbindungstechnik, wie z. B. der Rohranschlüsse einzuhalten.In addition, demands for the smallest possible installation space and one are aggravating Realization of economical connections to the component environment and the design of the Connection technology, such as B. the pipe connections.

Unter Berücksichtigung dieser Vorgaben wird eine geeignete Anordnung von Volumen- und Rohr-Kombinationen zur breitbandigen Absenkung von Strömungsgeräuschen vorgeschlagenen, die hohe Temperaturen und Drücke beherrschen. Die i. a. vorherrschenden Temperaturen und die Belange der Dauerfestigkeit sprechen zumindest in Turboladernähe für den Einsatz metallischer Werkstoffe.Taking these requirements into account, a suitable arrangement of volume and Pipe combinations for broadband reduction of flow noise proposed that master high temperatures and pressures. The i. a. prevailing Temperatures and the concerns of fatigue strength speak at least near the turbocharger for the use of metallic materials.

Diese Vorgabe metallischer Werkstoffe erfordert neben der Sicherstellung der Funktion bei kleinstmöglichen Bauräumen geeignete, kostengünstige Fertigungsverfahren, was aus einer speziellen Kombination von Außenmantel (1) und Steckrohren (2) realisiert ist. (vgl. Bild 2: Querschnittsansicht des Steckrohrdämpfers und Bild 3: Ansichten zum Steckrohrdämpfer).In addition to ensuring the function in the smallest possible installation spaces, this specification of metallic materials requires suitable, cost-effective production processes, which is realized from a special combination of outer jacket ( 1 ) and plug-in tubes ( 2 ). (see Figure 2: cross-sectional view of the tubular steamer and Figure 3: views of the tubular steamer).

Der Außenmantel (1) ist aus einem Teil geformt, so daß Volumenkammern (3) z. B. als Doppelkammern (4) entstehen. Dabei erfolgt ein teilweiser Abschluß der Volumenkammern (3) durch einerseits den Außenmantel (1) sowie andererseits durch Steckrohre (2), wobei abgestimmte Öffnungen (5/6) entstehen, die jeweils durch den Mittensteg (10) abgegrenzt sind. Diese durch die Steckrohre (2) und Mittensteg (10) gebildeten Öffnungen (5/6) können je nach Anforderung unterschiedlich breit ausgeführt sein.The outer jacket ( 1 ) is formed from one part, so that volume chambers ( 3 ) z. B. arise as double chambers ( 4 ). In this case, a partial closing takes place of the volume chambers (3) through the one hand, the outer shell (1) and on the other hand by means of plug tubes (2), said tuned openings (5/6) are formed, which are each defined by the middle web (10). These openings formed by the plug-in tubes (2) and web portion (10) (5/6) may each be carried out with different widths as required.

Die Steckrohre (2) können dabei Bestandteil oder Verlängerungen ohnehin vorhandener Rohrelemente sein, die dann zur Erzielung eines gewünschten Dämmverhaltens in der geschilderten Weise in den Außenmantel (1) einragen. Dabei lassen sich sowohl gleichlange als auch unterschiedliche Eintauchlängen der Steckrohre (2) realisieren.The plug-in pipes ( 2 ) can be part or extensions of existing pipe elements, which then protrude into the outer jacket ( 1 ) in the manner described to achieve a desired insulation behavior. Both the same length and different immersion lengths of the plug-in tubes ( 2 ) can be realized.

Die besondere Gestaltung des Außenmantels (1) wird durch eine kostengünstige Fertigung über geeignete Druckbeaufschlagung von Halbzeugrohren realisiert, so daß ein wellenförmiger Außenmantel gebildet wird, in den die Steckrohre (2) jeweils in den erforderlichen Längen eingeschoben und befestigt werden. Zur Befestigung bieten sich diverse Schweißverfahren oder auch Rollverdichtungen an.The special design of the outer jacket ( 1 ) is realized by cost-effective production by suitable pressurization of semi-finished tubes, so that a corrugated outer jacket is formed, into which the plug-in tubes ( 2 ) are inserted and fastened in the required lengths. Various welding methods or roller seals are available for fastening.

Die Steckrohrenden (7) lassen sich zur Aufnahme von Anschlüssen (8) nach Vorgaben entsprechend gestalten. The plug-in tube ends ( 7 ) can be designed accordingly to accommodate connections ( 8 ).

Gerade hochfrequente Störungen bei Strömungsvorgängen können jedoch zusätzlich noch Maßnahmen zur Minderung des Körperschalls erfordern:
Dabei erfolgt eine Bedämpfung der Anordnung über metallische Gestricke (9) derart, daß z. B. eine Applikation entweder raumsparend zwischen den Volumenkammern (3) am Steg (10) oder beispielsweise als Mantelüberzug, wie in den Bildern 1, 2 und 3 dargestellt ist, vorgenommen wird.However, especially high-frequency disturbances in flow processes can additionally require measures to reduce structure-borne noise:
The arrangement is damped using metallic knitted fabrics ( 9 ) such that, for. B. an application is made either space-saving between the volume chambers ( 3 ) on the web ( 10 ) or, for example, as a jacket covering, as shown in Figures 1 , 2 and 3 .

Diese besonders kleine Vorrichtung in Zweikammertechnik läßt sich vorteilhaft auch in Doppelausführung hintereinanderschalten, wobei noch wesentlich höhere Dämmwirkungen erzielt werden oder auch zusätzlich weitere Frequenzbereiche mit Dämmwirkung abgedeckt werden können.This particularly small device in two-chamber technology can also be advantageously used in Connect the double version in series, with significantly higher insulation effects can be achieved or additional frequency ranges covered with insulation can be.

Claims (9)

1. Vorrichtung zur Luft- und Körperschallabsenkung von sowohl Strömungsgeräuschen als auch Körperschallanregungen von z. B. Turboladern an Verbrennungsmotoren1. Device for reducing airborne and structure-borne noise from both flow noise and also structure-borne noise excitation from z. B. turbochargers on internal combustion engines 2. Vorrichtung nach Anspruch 1, die aus einem verformten Rohr einen Außenmantel besitzt.2. Device according to claim 1, which has an outer jacket from a deformed tube. 3. Vorrichtung nach Anspruch 1 bis 2, dessen Außenmantel durch z. B. Druckverformung aus einem Teil gefertigt wird.3. Device according to claim 1 to 2, the outer jacket by z. B. Compression deformation one part is manufactured. 4. Vorrichtung nach Anspruch 1 bis 3, dessen Außenmantel mit einem Mittensteg versehen ist.4. The device according to claim 1 to 3, the outer jacket provided with a central web is. 5. Vorrichtung nach Ansprach 1 bis 4, bei der Steckrohre in den Außenmantel eingfügt werden.5. Device according spoke 1 to 4, inserted into the outer jacket in the plug-in tubes become. 6. Vorrichtung nach Anspruch 1 bis 5, bei der Kammern aus Außenmantel, Steckrohren und Mittensteg gebildet werden.6. The device according to claim 1 to 5, in the chambers of the outer jacket, plug-in tubes and Mittensteg be formed. 7. Vorrichtung nach Anspruch 1 bis 6, bei der über die Einfügelänge der Steckrohre Kammerlängen und Kammeröffnungen gebildet werden.7. The device according to claim 1 to 6, in which on the insertion length of the plug-in tubes Chamber lengths and chamber openings are formed. 8. Vorrichtung nach Anspruch 1 bis 7, bei der das Außenrohr mit einem Formschlauch aus Metallgestrick zur Bedämpfung umschlossen wird.8. The device according to claim 1 to 7, wherein the outer tube with a molded tube Metal mesh is enclosed for damping. 9. Vorrichtung nach Anspruch 1 bis 8, die zu Erzielung noch höherer Dämmwerte hintereinandergeschaltet werden kann.9. The device according to claim 1 to 8, to achieve even higher insulation values can be connected in series.
DE1999149241 1999-10-13 1999-10-13 Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber Withdrawn DE19949241A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999149241 DE19949241A1 (en) 1999-10-13 1999-10-13 Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999149241 DE19949241A1 (en) 1999-10-13 1999-10-13 Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber

Publications (1)

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DE19949241A1 true DE19949241A1 (en) 2001-04-19

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ID=7925423

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Application Number Title Priority Date Filing Date
DE1999149241 Withdrawn DE19949241A1 (en) 1999-10-13 1999-10-13 Device for reducing sound conducted through air and solids caused by turbosuperchargers in internal combustion engines comprises tubes sliding into an outer jacket with a center flange to form a chamber

Country Status (1)

Country Link
DE (1) DE19949241A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1956281A1 (en) * 2007-02-02 2008-08-13 Trelleborg Fluid & Acoustic Solutions (TFAS) Noise-reduction device for a gaseous fluid intake circuit
DE10316628B4 (en) * 2003-04-11 2021-02-04 Umfotec Gmbh Method of manufacturing a tubular jacket damper
DE102005005865B4 (en) * 2005-02-09 2021-04-08 Umfotec Gmbh Device for reducing airborne noise from flow noises

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316628B4 (en) * 2003-04-11 2021-02-04 Umfotec Gmbh Method of manufacturing a tubular jacket damper
DE102005005865B4 (en) * 2005-02-09 2021-04-08 Umfotec Gmbh Device for reducing airborne noise from flow noises
EP1956281A1 (en) * 2007-02-02 2008-08-13 Trelleborg Fluid & Acoustic Solutions (TFAS) Noise-reduction device for a gaseous fluid intake circuit

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