DE20018689U1 - Lambda-Viertel-Rohr mit Schaltfunktion - Google Patents
Lambda-Viertel-Rohr mit SchaltfunktionInfo
- Publication number
- DE20018689U1 DE20018689U1 DE20018689U DE20018689U DE20018689U1 DE 20018689 U1 DE20018689 U1 DE 20018689U1 DE 20018689 U DE20018689 U DE 20018689U DE 20018689 U DE20018689 U DE 20018689U DE 20018689 U1 DE20018689 U1 DE 20018689U1
- Authority
- DE
- Germany
- Prior art keywords
- tube according
- quarter
- pipe
- lambda
- lambda quarter
- 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
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/023—Helmholtz resonators
-
- 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
-
- 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
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- 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
- F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
-
- 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
- F02M35/1244—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound
- F02M35/125—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound by using active elements, e.g. speakers
-
- 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
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
-
- 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
-
- 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
- F01N2490/14—Dead or resonance chambers connected to gas flow tube by relatively short side-tubes
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)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Fluid-Damping Devices (AREA)
- Check Valves (AREA)
Description
Der Beschreibungstext wurde nicht elektronisch erfaßt
Der Beschreibungstext wurde nicht elektronisch erfaßt
Claims (8)
1. Einseitig geschlossenes nicht durchströmtes Abzweigerohr für
Schallpegeireduzierung nach dem Lambda-Viertel-Prinzip ausgelegt,
dadurch gekennzeichnet, daß durch Schaltelemente die akustisch wirksame
Länge im Rohr variiert werden kann.
2. Lambda-Viertel-Rohr nach Anspruch 1, dadurch gekennzeichnet, daß als
Schaltelement eine Klappe oder ein Ventil verwendet wird, wodurch jeweils
mindestens zwei verschiedene Rohrlängen eingestellt werden können.
3. Lambda-Viertel-Rohr nach Anspruch 1, dadurch gekennzeichnet, daß als
Schaltelement ein Kolben verwendet wird, der stufenlos verstellt werden
kann.
4. Lambda-Viertel-Rohr nach Anspruch 1, dadurch gekennzeichnet, daß das
Abzweigrohr aus ineinander gesteckten Rohrstücken besteht, die auseinander
gezogen oder zusammen geschoben werden können (Teleskop-Prinzip).
5. Lambda-Viertel-Rohr nach Anspruch 1 und 3, dadurch gekennzeichnet, daß
die Kolbenverstellung mittels Kolbenstange, Zugelementen oder berührungs
los (z. B.: magnetisch) erfolgen kann.
6. Lambda-Viertel-Rohr nach Anspruch 1 und 2, dadurch gekennzeichnet, daß
durch Hintereinanderschaltung der Stellelemente mehrere Rohrlängen
geschaltet werden können.
7. Lambda-Viertel-Rohr nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß
vom Lambda-Viertel-Rohr weitere Abzweigrohre geschaltet werden können.
8. Lambda-Viertel-Rohr nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß
die Rohre ganz oder partiell absorbierend ausgeführt sein können.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20018689U DE20018689U1 (de) | 2000-11-02 | 2000-11-02 | Lambda-Viertel-Rohr mit Schaltfunktion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20018689U DE20018689U1 (de) | 2000-11-02 | 2000-11-02 | Lambda-Viertel-Rohr mit Schaltfunktion |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20018689U1 true DE20018689U1 (de) | 2001-02-15 |
Family
ID=7948370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20018689U Expired - Lifetime DE20018689U1 (de) | 2000-11-02 | 2000-11-02 | Lambda-Viertel-Rohr mit Schaltfunktion |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20018689U1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005014419B3 (de) * | 2005-03-24 | 2006-08-03 | Studt & Co (Gmbh & Co) | Einrichtung zur Schalldämpfung strömender, gasförmiger Medien |
WO2008034943A1 (en) * | 2006-09-21 | 2008-03-27 | Wärtsilä Finland Oy | Exhaust system for a piston engine and method of damping pressure vibration in an exhaust system of a piston engine |
WO2011138004A1 (de) * | 2010-05-04 | 2011-11-10 | Emico Gmbh | Breitbandig dämpfende vorrichtung zur schalldämpfung bei industrieeinrichtungen, grossanlagen oder maschinen |
WO2012148343A1 (en) * | 2011-04-29 | 2012-11-01 | Scania Cv Ab | Silencer device and motor vehicle comprising such a silencer device |
DE202015106318U1 (de) * | 2015-11-19 | 2016-11-24 | Viessmann Werke Gmbh & Co Kg | Heizgerät |
DE102016002747A1 (de) * | 2016-03-08 | 2017-09-14 | Dw-Shipconsult Gmbh | Variabler Resonatorschalldämpfer zur nachträglichen Einrüstung an Schiffsabgasrohre |
-
2000
- 2000-11-02 DE DE20018689U patent/DE20018689U1/de not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005014419B3 (de) * | 2005-03-24 | 2006-08-03 | Studt & Co (Gmbh & Co) | Einrichtung zur Schalldämpfung strömender, gasförmiger Medien |
WO2008034943A1 (en) * | 2006-09-21 | 2008-03-27 | Wärtsilä Finland Oy | Exhaust system for a piston engine and method of damping pressure vibration in an exhaust system of a piston engine |
WO2011138004A1 (de) * | 2010-05-04 | 2011-11-10 | Emico Gmbh | Breitbandig dämpfende vorrichtung zur schalldämpfung bei industrieeinrichtungen, grossanlagen oder maschinen |
WO2012148343A1 (en) * | 2011-04-29 | 2012-11-01 | Scania Cv Ab | Silencer device and motor vehicle comprising such a silencer device |
US8734128B2 (en) | 2011-04-29 | 2014-05-27 | Scania Cv Ab | Silencer device and motor vehicle comprising such a silencer device |
DE202015106318U1 (de) * | 2015-11-19 | 2016-11-24 | Viessmann Werke Gmbh & Co Kg | Heizgerät |
DE102016002747A1 (de) * | 2016-03-08 | 2017-09-14 | Dw-Shipconsult Gmbh | Variabler Resonatorschalldämpfer zur nachträglichen Einrüstung an Schiffsabgasrohre |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 20010322 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20040527 |
|
R151 | Term of protection extended to 8 years |
Effective date: 20070613 |
|
R158 | Lapse of ip right after 8 years |
Effective date: 20090603 |