DE19956166B4 - Annular chamber damper - Google Patents
Annular chamber damper Download PDFInfo
- Publication number
- DE19956166B4 DE19956166B4 DE19956166A DE19956166A DE19956166B4 DE 19956166 B4 DE19956166 B4 DE 19956166B4 DE 19956166 A DE19956166 A DE 19956166A DE 19956166 A DE19956166 A DE 19956166A DE 19956166 B4 DE19956166 B4 DE 19956166B4
- Authority
- DE
- Germany
- Prior art keywords
- annular chamber
- wall
- chamber
- volume
- buffer
- 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
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1233—Flow throttling or guiding by using expansion chambers in the air intake flow path
-
- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- 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
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
- F02B77/13—Acoustic insulation
-
- 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
-
- 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
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Exhaust Silencers (AREA)
- Supercharger (AREA)
Abstract
Vorrichtung zur Luft- und Körperschallabsenkung mit miteinander kommunizierenden Volumina mehrerer Kammern, wobei mindestens eine in Strömungsrichtung einseitig geschlossene erste Ringkammer (4) mit einem zwischen einer Innenwandung und einer Außenwandung gelegenen ersten Ringkammervolumen vorgesehen ist,
dadurch gekennzeichnet,
dass der ersten Ringkammer eine Zwischenkammer (5a) mit einem Zwischenkammervolumen vorgelagert ist, deren Zwischenkammerwandung von einer über die Längserstreckung der Innenwandung der ersten Ringkammer (4) hinausragenden Fortsetzung der Außenwandung der ersten Ringkammer (4) gebildet wird, und
dass der Zwischenkammer (5a) eine Pufferkammer mit einem Puffervolumen (6) vorlagert ist.Device for airborne and structure-borne noise reduction with mutually communicating volumes of a plurality of chambers, wherein at least one first annular chamber (4) closed on one side in the flow direction is provided with a first annular chamber volume located between an inner wall and an outer wall,
characterized,
in that the first annular chamber is preceded by an intermediate chamber (5a) with an intermediate chamber volume whose intermediate chamber wall is formed by a continuation of the outer wall of the first annular chamber (4) beyond the longitudinal extent of the inner wall of the first annular chamber (4), and
the intermediate chamber (5a) is preceded by a buffer chamber with a buffer volume (6).
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zur Luft- und Körperschallabsenkung mit miteinander kommunizierenden Volumina mehrerer Kammern, wobei mindestens eine in Strömungsrichtung einseitig geschlossene erste Ringkammer mit einem zwischen einer Innenwandung und einer Außenwandung gelegenen ersten Ringkammervolumen vorgesehen ist.The The present invention relates to a device for airborne and structure-borne noise reduction with communicating volumes of several chambers, wherein at least one in the flow direction closed on one side first annular chamber with a between a Inner wall and an outer wall provided first annular chamber volume is provided.
Bei solchen Vorrichtungen werden insbesondere hochfrequente Strömungsgeräusche bei gleichzeitiger Anwesenheit hoher Temperaturen und Drücke sowie geringen Bauräumen breitbandig abgesenkt. Derartige Geräusche kommen z. B. bei Abgasturboladern vor, die infolge hoher Drehzahlen nicht beherrschbare Unwuchten sowie Störungen durch fertigungsbedingte Verzüge (z. B. Schaufeln) aufweisen.at Such devices in particular high-frequency flow noise at simultaneous presence of high temperatures and pressures as well small installation spaces lowered broadband. Such sounds come z. B. in exhaust gas turbochargers before, the uncontrollable imbalances due to high speeds as well as disorders due to production-related delays (eg, 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. 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.These bothersome Sounds be both about Airborne sound through the charge air duct transported as well over Airborne and structure-borne noise radiated so that solutions regarding these mechanisms found Need to become. These are still aggravating demands for the smallest possible space and a realization of economic connections to the component environment and for the design of the connection technology, such. B. comply with the pipe connections.
Aus
der
Nachteilig dabei ist, dass zur Erzielung einer breitbandigen Schallabsenkung eine relativ schwierig anzuordnende Abdeckkappe im Inneren der Ringkammer vorgesehen ist.adversely it is that to achieve a broadband sound reduction a relatively difficult to arrange cap in the interior of the annular chamber is provided.
Weiterhin
ist aus der
Nachteilig
dabei ist, dass die Breite der Dämpfungsgebiete
von der Wahl des Verhältnisses der
Durchmesser von Kammer und Leitungsrohr abhängt, was zu relativ großvolumigen
Bauräumen führt. Zur
Erzielung einer breitbandigen Schallabsenkung werden zudem relativ
schwierig anzuordnende weitere Schallabsorptionsmittel in der
Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zur Luft- und Körperschallabsenkung zu schaffen, die insbesondere hochfrequente Strömungsgeräusche bei gleichzeitiger Anwesenheit hoher Temperaturen und Drücke sowie geringen Bauräumen breitbandig absenkt.task It is therefore an object of the present invention to provide a device for and structure-borne noise reduction to create, in particular, the high-frequency flow noise with simultaneous presence high temperatures and pressures as well as small installation spaces broadband lowers.
Diese
Aufgabe wird in Verbindung mit dem Oberbegriff des Anspruches 1
dadurch gelöst,
dass der ersten Ringkammer eine Zwischenkammer mit einem Zwischenkammervolumen
vorgelagert ist, deren Zwischenkammerwandung von einer über die Längserstreckung
der Innenwandung der ersten Ringkammer hinausragenden Fortsetzung
der Außenwandung
der ersten Ringkammer gebildet wird, und dass der Zwischenkammer
eine Pufferkammer mit einem Puffervolumen vorlagert ist.These
The object is in connection with the preamble of
Unter Berücksichtigung der obigen Vorgaben wird eine geeignete Anordnung von Volumen- und Rohr – Kombinationen zur breitbandigen Absenkung von Strömungsgeräuschen insbesondere hochfrequenter Geräuschkomponenten um und über 10 kHz vorgeschlagen, die darüber hinaus noch hohe Temperaturen und Drücke beherrscht. Die i. a. vorherrschenden Temperaturen und die Belange der Dauerfestigkeit sprechen zumindest in Turboladernähe für den Einsatz metallischer Werkstoffe.Under consideration the above specifications will be a suitable arrangement of volume and pipe combinations for broadband reduction of flow noise in particular high-frequency noise components around and over 10 kHz suggested that about it In addition, still high temperatures and pressures dominated. The i. a. prevailing Temperatures and the concerns of fatigue speak at least near the turbocharger for the Use of metallic materials.
Gemäß einer bevorzugten Ausführungsform der Erfindung bildet die Wandung der Zwischenkammer mit der einen Außenmantel bildenden Wandung der Pufferkammer eine einseitig geschlossene zweite Ringkammer mit einem zweiten Ringkammervolumen, das mit dem Puffervolumen kommuniziert.According to one preferred embodiment of Invention forms the wall of the intermediate chamber with an outer jacket forming wall of the buffer chamber closed on one side second annular chamber with a second annular chamber volume that communicates with the buffer volume.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung wird die Innenwandung der ersten Ringkammer von einem Ende eines ersten Rohrstücks gebildet, an dessen anderem Ende ein Anschluss angeordnet ist.According to one another preferred embodiment the invention, the inner wall of the first annular chamber of a End of a first piece of pipe formed at the other end a connection is arranged.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung wird die Außenwandung der ersten Ringkammer von einem Ende eines zweiten Rohrstücks gebildet, dessen freies zweites Ende die Zwischenkammerwandung bildet.According to one another preferred embodiment The invention is the outer wall the first annular chamber is formed by one end of a second tubular piece, the free second end forms the Zwischenkammerwandung.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung ist das zweite Rohrstück als ein Absatz des Außenmantels ausgebildet.According to one another preferred embodiment the invention is the second pipe section as a shoulder of the outer shell educated.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung ist an dem der ersten Ringkammer abgewandten Ende der Pufferkammer ein rohrförmiger zweiter Anschluss angeordnet.According to one another preferred embodiment The invention is at the end remote from the first annular chamber the buffer chamber is a tubular second connection arranged.
Gemäß einer weiteren bevorzugten Ausführungsform der Erfindung ist der Außenmantel durch Druckverformung aus einem Halbzeugrohr gebildet.According to one another preferred embodiment The invention is the outer jacket formed by compression deformation of a semi-finished tube.
In den Zeichnungen zeigen:In show the drawings:
Die
Vorgabe metallischer Werkstoffe erfordert neben der Funktion geeignete,
kostengünstige Fertigungsverfahren,
was aus einer speziellen Kombination von Außenmantel
Der
Außenmantel
Die
besondere Gestaltung des Außenmantels
Der
rohrförmige
Anschluss
Eine
weitere Variante, die im Gegensatz zur beschriebenen Variante
Der Mantel
The
Auch
mit dieser Anordnung lassen sich besonders hochfrequente Strömungsgeräusche oberhalb
10 kHz unter Ausnutzung ähnlicher
Effekte wie bei Variante
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19956166A DE19956166B4 (en) | 1999-11-23 | 1999-11-23 | Annular chamber damper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19956166A DE19956166B4 (en) | 1999-11-23 | 1999-11-23 | Annular chamber damper |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19956166A1 DE19956166A1 (en) | 2001-05-31 |
DE19956166B4 true DE19956166B4 (en) | 2011-02-17 |
Family
ID=7929938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19956166A Expired - Lifetime DE19956166B4 (en) | 1999-11-23 | 1999-11-23 | Annular chamber damper |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19956166B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017127305A1 (en) * | 2017-11-20 | 2019-05-23 | AT-Tec Attendorner Tube-Tec GmbH | Pipe element for liquid lines |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2840653B1 (en) | 2002-06-07 | 2006-09-22 | Trelleborg Automotive France | NOISE MITIGATION DEVICE ON AN AIR INTAKE CIRCUIT FOR A SUPERIOR PREFERENCE MOTOR OR AIR CONDITIONING APPARATUS AND ADMISSION CIRCUIT EQUIPPED WITH SUCH A DEVICE |
DE202004005746U1 (en) * | 2004-04-13 | 2004-06-17 | Festo Ag & Co. | Compressed air sound damping system for a pneumatic component has a through-channel with a constant flow cross-section over its whole length |
FR2902155B1 (en) * | 2006-06-09 | 2012-01-20 | Mann & Hummel Gmbh | NOISE ATTENUATOR AND ESPECIALLY NOISE GENERATED BY A MOTOR SUPERCURRENT BY A TURBOCHARGER |
FR2912201A1 (en) | 2007-02-02 | 2008-08-08 | Trelleborg Fluid & Acoustic Solutions Tfas | Noise attenuation device for internal combustion engine, has axial intake duct communicated with resonating chamber, where duct has two sections which are integrated to each other by its enlarged sections |
DE102012203105B3 (en) * | 2012-02-29 | 2013-05-16 | Siemens Aktiengesellschaft | Turbo compressor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE760362C (en) * | 1943-01-30 | 1951-07-26 | Maschf Augsburg Nuernberg Ag | Sound absorber in which the chambers enclose the pipe and are connected to it through slots like a branch filter |
DE4440918A1 (en) * | 1994-11-17 | 1996-05-23 | Bayer Ag | Device for sound insulation in pipes |
-
1999
- 1999-11-23 DE DE19956166A patent/DE19956166B4/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE760362C (en) * | 1943-01-30 | 1951-07-26 | Maschf Augsburg Nuernberg Ag | Sound absorber in which the chambers enclose the pipe and are connected to it through slots like a branch filter |
DE4440918A1 (en) * | 1994-11-17 | 1996-05-23 | Bayer Ag | Device for sound insulation in pipes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017127305A1 (en) * | 2017-11-20 | 2019-05-23 | AT-Tec Attendorner Tube-Tec GmbH | Pipe element for liquid lines |
Also Published As
Publication number | Publication date |
---|---|
DE19956166A1 (en) | 2001-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R020 | Patent grant now final |
Effective date: 20110619 |
|
R082 | Change of representative |
Representative=s name: FIEDLER, OSTERMANN & SCHNEIDER, DE |
|
R081 | Change of applicant/patentee |
Owner name: DENKER, DIETRICH, PROF. DR.-ING., DE Free format text: FORMER OWNERS: UMFOTEC GMBH, 37154 NORTHEIM, DE; DENKER, DIETRICH, PROF. DR.-ING., 70599 STUTTGART, DE Effective date: 20141112 Owner name: UMFOTEC GMBH, DE Free format text: FORMER OWNERS: UMFOTEC GMBH, 37154 NORTHEIM, DE; DENKER, DIETRICH, PROF. DR.-ING., 70599 STUTTGART, DE Effective date: 20141112 Owner name: DENKER, DIETRICH, PROF. DR.-ING., DE Free format text: FORMER OWNER: UMFOTEC GMBH,DIETRICH DENKER, , DE Effective date: 20141112 Owner name: UMFOTEC GMBH, DE Free format text: FORMER OWNER: UMFOTEC GMBH,DIETRICH DENKER, , DE Effective date: 20141112 |
|
R082 | Change of representative |
Representative=s name: FIEDLER, OSTERMANN & SCHNEIDER, DE Effective date: 20141112 |
|
R071 | Expiry of right |