DE4311334B4 - Method and device for controlling and soundproofing an air flow - Google Patents
Method and device for controlling and soundproofing an air flow Download PDFInfo
- Publication number
- DE4311334B4 DE4311334B4 DE4311334A DE4311334A DE4311334B4 DE 4311334 B4 DE4311334 B4 DE 4311334B4 DE 4311334 A DE4311334 A DE 4311334A DE 4311334 A DE4311334 A DE 4311334A DE 4311334 B4 DE4311334 B4 DE 4311334B4
- Authority
- DE
- Germany
- Prior art keywords
- wall
- flow
- construction
- sound
- flow channel
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- 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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
-
- 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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/22—Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls
-
- 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
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
Abstract
Verfahren
zur Schalldämmung
und Luftströmungsregelung,
dadurch gekennzeichnet, dass eine Luftströmung durch eine Reglervorrichtung
(10) geführt
wird in einem Durchflusskanal (14), der eine den Durchflusskanal
(14) begrenzende Wandkonstruktion (15, 16) aufweist, die zur Mittelachse
(X) des Durchflusskanals (14) hin biegsam ist, wobei die Wandkonstruktion
(15, 16) in der Vorrichtung (10) angrenzend an eine Schalldämmungskammer
(20a, 20b), die eine schalldämmende
Konstruktion (21) enthält,
untergebracht
ist, womit durch Biegen der an den Durchflusskanal (14) grenzenden
Wandkonstruktion (15, 16) zur Durchflusskanalachse (X) hin die Strömungsquerschnittsfläche des
Durchflusskanals 11 (14) verkleinert wird und dadurch der Schalleintritt
in die Schalldämmungskammer und
der Luftströmungswiderstand
der Vorrichtung vergrößert werden,
wobei die gebogenen Wandelemente (15, 16) dem Durchflusskanal eine
strömungstechnisch
günstige, sich
gleichförmig ändernde
Form geben, die somit die durch die Reglervorrichtung hervorgerufene
Strömungsturbulenz
nicht wesentlich erhöht,
wobei
die
Wandkonstruktion (15, 16) aus zwei Wandelementen (15, 16) besteht,
beim
Regeln der Drosselung der Luftströmung die...A method for sound insulation and air flow control, characterized in that an air flow through a regulator device (10) is guided in a flow channel (14) having a flow passage (14) delimiting wall construction (15, 16) to the central axis (X) of the Flow duct (14) is flexible, wherein the wall construction (15, 16) in the device (10) adjacent to a sound-absorbing chamber (20a, 20b) containing a sound-absorbing construction (21),
accommodating, by bending the wall structure (15, 16) adjacent the flow channel (14) to the flow channel axis (X), the flow cross-sectional area of the flow channel 11 (14) is reduced, thereby increasing the sound entry into the sound attenuation chamber and the air flow resistance of the device wherein the curved wall elements (15, 16) give the flow passage a fluidically favorable, uniformly changing shape, which thus does not substantially increase the flow turbulence caused by the regulator device,
in which
the wall construction (15, 16) consists of two wall elements (15, 16),
in controlling the throttling of the air flow the ...
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Regelung und Schalldämmung einer Luftströmung.The The invention relates to a method and a device for regulation and sound insulation an airflow.
Vom Stand der Technik her sind sog. Kanalschalldämpfer bekannt, bei denen die Luftströmung an einer sog. schallabsorbierenden Kammerkonstruktion entlang geführt wird. Auf beiden Seiten des Durchflußkanals befindet sich eine in ihren Wänden perforierte Kammerkonstruktion, in welche die Kanalgeräusche gelenkt werden, wobei die Kammerkonstruktion als Dämpferkonstruktion für die genannten Schallwellen dient. Eine Kanalschalldämpferkonstruktion genannter Art ist zum Beispiel in der US-PS 4 287 962 beschrieben.from In the prior art, so-called channel silencers are known in which the Air flow on a so-called sound-absorbing chamber construction is guided along. On both sides of the flow channel There is a perforated in their walls Chamber construction, in which the channel noise are directed, wherein the chamber construction as damper construction for the serves sound waves. A duct muffler construction called This type is described, for example, in US Pat. No. 4,287,962.
Beim Einsatz von solchen aus er US-PS 4 287 962 oder ähnlichen Schriften bekannten separaten Dämpfern wurde in der genannten Anwendung nicht angestrebt, eine Lösung für die Ursache des eigentlichen Problems zu finden. Es wurde nicht versucht, die Entstehung der nicht erwünschten Störungsgeräusche zu verhindern. Beim Drosseln der Luftströmung mit Reglern entsteht ein Großteil solcher störenden Geräusche, die weiterhin eine solche separate Dämpfereinheit erfordern, wie sie z.B. gerade in der US-PS 4 287 962 beschrieben ist.At the Use of such known from US-PS 4,287,962 or similar documents separate dampers was not sought in the application mentioned, a solution to the cause to find the actual problem. It was not tried, the Emergence of unwanted Noise too prevent. When throttling the air flow with regulators arises large part such disturbing Sounds, which further require such a separate damper unit, such as they e.g. is described in U.S. Patent 4,287,962.
Ferner
ist in der
Aus
der
Weiterer
Stand der Technik ist in den Druckschriften
Es ist die Aufgabe der vorliegende Erfindung, ein Verfahren sowie eine Vorrichtung zur Schalldämmung und Luftströmungsregelung zu schaffen, mit denen die Schalldämmung bei gleichzeitiger Luftströmungsregelung verbessert ist.It is the object of the present invention, a method and a Device for sound insulation and airflow control to create, with which the sound insulation with simultaneous air flow control is improved.
Erfindungsgemäß wird diese Aufgabe mit einem Verfahren mit den Merkmalen des Anspruchs 1 und mit einer Vorrichtung mit den Merkmalen des Anspruchs 3 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen dargelegt.According to the invention this Task with a method having the features of claim 1 and solved with a device having the features of claim 3. advantageous Further developments are set forth in the subclaims.
Im folgenden wird die Erfindung unter Hinweis auf einige in den Abbildungen der beigefügten Zeichnung gezeigte Ausführungsbeispiele der Erfindung, auf deren Einzelheiten die Erfindung jedoch nicht begrenzt ist, ausführlich beschrieben.in the The following is the invention with reference to some in the figures the attached drawing shown embodiments However, the invention, the details of which the invention is not is limited, in detail described.
In
In
In
In
In
In
In
In
In
In
In
Die
Strömungsrichtung
der Luft ist durch den Pfeil L1 gekennzeichnet.
Die Regelung der Lage der Wände
In
der Ausführungsform
nach
In
der Ausführungsform
nach
In
In
Beim
Drehen der Welle
In
In
In
In
In
In
In
Das
Rohr
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI921731 | 1992-04-16 | ||
FI921731A FI96901C (en) | 1992-04-16 | 1992-04-16 | Method and apparatus for controlling and silencing an air stream |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4311334A1 DE4311334A1 (en) | 1993-10-21 |
DE4311334B4 true DE4311334B4 (en) | 2006-06-22 |
Family
ID=8535143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4311334A Expired - Lifetime DE4311334B4 (en) | 1992-04-16 | 1993-04-06 | Method and device for controlling and soundproofing an air flow |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE4311334B4 (en) |
FI (1) | FI96901C (en) |
FR (1) | FR2690227B1 (en) |
GB (1) | GB2266340B (en) |
NO (1) | NO179536C (en) |
SE (1) | SE516785C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013203375A1 (en) * | 2013-02-28 | 2014-08-28 | Siemens Aktiengesellschaft | Air conditioning arrangement for a rail vehicle |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4419219A1 (en) * | 1994-06-01 | 1996-03-07 | Mann & Hummel Filter | Sound damping assembly for suction manifold air ducts of vehicle IC engine |
US20110005507A9 (en) | 2001-01-23 | 2011-01-13 | Rick Bagwell | Real-time control of exhaust flow |
DE10123275A1 (en) * | 2001-05-12 | 2002-11-14 | Cww Gerko Akustik Gmbh | Guide plate for flowing gas reduces turbulent content and is perforated, with diameter of perforation holes not exceeding the limit surface density of the flow through them |
FI20035204A0 (en) * | 2003-11-12 | 2003-11-12 | Tapio Tarpio | Silencer |
FI117648B (en) | 2004-03-02 | 2006-12-29 | Jeven Oy | Air flow control and damping device |
PL1778418T5 (en) | 2004-07-23 | 2014-09-30 | Oy Halton Group Ltd | Improvements for control of exhaust systems |
DE102006009153A1 (en) * | 2006-02-24 | 2007-08-30 | Mahle International Gmbh | Exhaust gas recirculation device |
US20080274683A1 (en) | 2007-05-04 | 2008-11-06 | Current Energy Controls, Lp | Autonomous Ventilation System |
US20090061752A1 (en) | 2007-08-28 | 2009-03-05 | Current Energy Controls, Lp | Autonomous Ventilation System |
CA2745432C (en) | 2008-12-03 | 2017-07-18 | Oy Halton Group Ltd. | Exhaust flow control system and method |
DE102009060081B4 (en) * | 2009-12-22 | 2018-02-22 | Airbus Operations Gmbh | Vacuum sewer system Silencers |
WO2015136357A1 (en) * | 2014-03-11 | 2015-09-17 | Zehnder Group International Ag | Sound absorber for a ventilation system and method for controlling said sound damper |
US10054050B2 (en) | 2014-08-19 | 2018-08-21 | Pratt & Whitney Canada Corp. | Low noise aeroengine inlet system |
US10221764B2 (en) | 2014-08-19 | 2019-03-05 | Pratt & Whitney Canada Corp. | Variable geometry inlet system |
US9951690B2 (en) * | 2014-08-19 | 2018-04-24 | Pratt & Whitney Canada Corp. | Low noise aeroengine inlet system |
US9957889B2 (en) | 2014-08-19 | 2018-05-01 | Pratt & Whitney Canada Corp. | Low noise aeroengine inlet system |
US10139126B2 (en) | 2016-10-11 | 2018-11-27 | University Of Dammam | Airborne noise reduction system and method |
DE102019102478A1 (en) * | 2019-01-31 | 2020-08-06 | Faurecia Emissions Control Technologies, Germany Gmbh | Exhaust system component for an exhaust system of an internal combustion engine and exhaust system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1195979B (en) * | 1960-02-19 | 1965-07-01 | Svenska Flaektfabriken Ab | Device for keeping the static pressure constant in a pipe |
GB1181405A (en) * | 1966-08-25 | 1970-02-18 | Nob0 Fabrikker As | Improvements in or relating to Flow Regulating Arrangements |
DE2421739A1 (en) * | 1974-05-06 | 1975-11-20 | Volkswagenwerk Ag | Silencers for pipes of periodically operated I.C. engine - with a venturi nozzle surrounded by gas tight housing and fitted in the nozzle wall |
DE2643996A1 (en) * | 1975-10-01 | 1977-04-14 | Renault | ELASTIC VENTURI TUBE FOR VARIABLE FLOW RATE |
DE3608804A1 (en) * | 1986-03-15 | 1987-09-17 | Carduck F W Gmbh | Conduit sound damper with movable sound-absorbing walls |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB512435A (en) * | 1938-03-02 | 1939-09-15 | Evelyn Stewart Lansdowne Beale | Improvements in and relating to the ventilation of buildings |
FR1510897A (en) * | 1966-10-28 | 1968-01-26 | Snecma | Advanced noise reduction devices emitted by compressors and blowers |
GB1212875A (en) * | 1967-12-21 | 1970-11-18 | Rolls Royce | Aircraft |
US3533486A (en) * | 1968-11-08 | 1970-10-13 | Gen Electric | Jet engine silencer with retractable sound absorbing body |
US3611724A (en) * | 1970-01-07 | 1971-10-12 | Gen Electric | Choked inlet noise suppression device for a turbofan engine |
GB1306651A (en) * | 1971-03-02 | 1973-02-14 | Rolls Royce | Air intakes for gas turbine engines |
US4075833A (en) * | 1976-01-02 | 1978-02-28 | General Electric Company | Variable area inlet for a gas turbine engine |
-
1992
- 1992-04-16 FI FI921731A patent/FI96901C/en not_active IP Right Cessation
-
1993
- 1993-04-06 DE DE4311334A patent/DE4311334B4/en not_active Expired - Lifetime
- 1993-04-14 NO NO931361A patent/NO179536C/en not_active IP Right Cessation
- 1993-04-15 SE SE9301229A patent/SE516785C2/en unknown
- 1993-04-15 GB GB9307816A patent/GB2266340B/en not_active Expired - Lifetime
- 1993-04-15 FR FR9304446A patent/FR2690227B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1195979B (en) * | 1960-02-19 | 1965-07-01 | Svenska Flaektfabriken Ab | Device for keeping the static pressure constant in a pipe |
GB1181405A (en) * | 1966-08-25 | 1970-02-18 | Nob0 Fabrikker As | Improvements in or relating to Flow Regulating Arrangements |
DE2421739A1 (en) * | 1974-05-06 | 1975-11-20 | Volkswagenwerk Ag | Silencers for pipes of periodically operated I.C. engine - with a venturi nozzle surrounded by gas tight housing and fitted in the nozzle wall |
DE2643996A1 (en) * | 1975-10-01 | 1977-04-14 | Renault | ELASTIC VENTURI TUBE FOR VARIABLE FLOW RATE |
DE3608804A1 (en) * | 1986-03-15 | 1987-09-17 | Carduck F W Gmbh | Conduit sound damper with movable sound-absorbing walls |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013203375A1 (en) * | 2013-02-28 | 2014-08-28 | Siemens Aktiengesellschaft | Air conditioning arrangement for a rail vehicle |
Also Published As
Publication number | Publication date |
---|---|
SE9301229D0 (en) | 1993-04-15 |
SE9301229L (en) | 1993-10-17 |
FI921731A0 (en) | 1992-04-16 |
NO179536B (en) | 1996-07-15 |
FI96901B (en) | 1996-05-31 |
NO179536C (en) | 1996-10-23 |
FI96901C (en) | 1996-09-10 |
FR2690227B1 (en) | 1997-01-17 |
GB2266340B (en) | 1996-03-06 |
GB2266340A (en) | 1993-10-27 |
NO931361D0 (en) | 1993-04-14 |
DE4311334A1 (en) | 1993-10-21 |
NO931361L (en) | 1993-10-18 |
FI921731A (en) | 1993-10-17 |
FR2690227A1 (en) | 1993-10-22 |
SE516785C2 (en) | 2002-03-05 |
GB9307816D0 (en) | 1993-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R071 | Expiry of right | ||
R071 | Expiry of right |