[go: up one dir, main page]

EP1381025A3 - Sound damping device having a Helmholtz resonator for installations with pulsating gas flows - Google Patents

Sound damping device having a Helmholtz resonator for installations with pulsating gas flows Download PDF

Info

Publication number
EP1381025A3
EP1381025A3 EP03013618A EP03013618A EP1381025A3 EP 1381025 A3 EP1381025 A3 EP 1381025A3 EP 03013618 A EP03013618 A EP 03013618A EP 03013618 A EP03013618 A EP 03013618A EP 1381025 A3 EP1381025 A3 EP 1381025A3
Authority
EP
European Patent Office
Prior art keywords
damping device
flow channel
gas flows
gas flow
connection neck
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Withdrawn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
EP03013618A
Other languages
German (de)
French (fr)
Other versions
EP1381025A2 (en
Inventor
Jan Dr. Krüger
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1381025A2 publication Critical patent/EP1381025A2/en
Publication of EP1381025A3 publication Critical patent/EP1381025A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00013—Reducing thermo-acoustic vibrations by active means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Exhaust Silencers (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Geräuschdämpfungsvorrichtung (1) zur Reduktion von Mündungsgeräuschen bei Anlagen mit pulsierenden Gasströmungen, insbesondere bei einer Frischluftansauganlage oder einer Abgasanlage einer Brennkraftmaschine. Die Geräuschdämpfungsvorrichtung (1) weist einen Helmholtz-Resonator (2) auf, der über zwei verschieden dimensionierte Verbindungshälse (4, 5) mit einem Gasströmungskanal (6) verbunden ist, in dem ein pulsierendes Gas strömt. Die Kammer (3) kommuniziert über den ersten Verbindungshals (4) permanent mit dem Gasströmungskanal (6). Der zweite Verbindungshals (5) ist mittels eines Schaltglieds (8) zwischen einem aktiviertem Zustand, in dem die Kammer (3) über den zweiten Verbindungshals (5) mit dem Gasströmungskanal (6) kommuniziert, und einem deaktiviertem Zustand umschaltbar, in dem die Kammer (3) über den zweiten Verbindungshals (5) nicht mit dem Gasströmungskanal (6) kommuniziert.

Figure 00000001
The invention relates to a noise damping device (1) for reducing muzzle noise in systems with pulsating gas flows, in particular in a fresh air intake system or an exhaust system of an internal combustion engine. The noise damping device (1) has a Helmholtz resonator (2), which is connected via two differently dimensioned connecting necks (4, 5) to a gas flow channel (6) in which a pulsating gas flows. The chamber (3) communicates permanently with the gas flow channel (6) via the first connection neck (4). The second connection neck (5) can be switched by means of a switching element (8) between an activated state in which the chamber (3) communicates with the gas flow channel (6) via the second connection neck (5) and an deactivated state in which the chamber (3) does not communicate with the gas flow channel (6) via the second connection neck (5).
Figure 00000001
EP03013618A 2002-07-11 2003-06-16 Sound damping device having a Helmholtz resonator for installations with pulsating gas flows Withdrawn EP1381025A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002131238 DE10231238B4 (en) 2002-07-11 2002-07-11 Noise damping device
DE10231238 2002-07-11

Publications (2)

Publication Number Publication Date
EP1381025A2 EP1381025A2 (en) 2004-01-14
EP1381025A3 true EP1381025A3 (en) 2004-12-08

Family

ID=29723835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03013618A Withdrawn EP1381025A3 (en) 2002-07-11 2003-06-16 Sound damping device having a Helmholtz resonator for installations with pulsating gas flows

Country Status (2)

Country Link
EP (1) EP1381025A3 (en)
DE (1) DE10231238B4 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7690478B2 (en) 2006-09-15 2010-04-06 Visteon Global Technologies, Inc. Continuously variable tuned resonator
BR112012002234A8 (en) 2009-08-03 2017-10-10 Koninklijke Philips Electronics Nv COMPRESSOR SYSTEM, NOISE REDUCTION METHOD IN A COMPRESSOR SYSTEM AND METHOD OF MONITORING COMPRESSOR PUMP OPERATION IN A COMPRESSOR SYSTEM
EP3434876A1 (en) 2017-07-25 2019-01-30 Siemens Aktiengesellschaft Combustor apparatus and method of operating combustor apparatus
EP3738494A1 (en) * 2019-05-14 2020-11-18 Koninklijke Philips N.V. Noise reduction device
CN110322868A (en) * 2019-06-06 2019-10-11 江苏科技大学 A kind of driving frequency-conversion Helmholz resonance device and its frequency modulation noise-reduction method
KR20210026356A (en) * 2019-08-30 2021-03-10 현대자동차주식회사 Variable wheel resonator system for vehicle
CN110751938A (en) * 2019-10-12 2020-02-04 江苏科技大学 Helmholtz resonator and working method thereof
CN111878406B (en) * 2020-08-19 2025-03-14 珠海格力电器股份有限公司 Compressors and air conditioning units

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546733A (en) * 1983-03-22 1985-10-15 Nippondenso Co., Ltd. Resonator for internal combustion engines
JPH03963A (en) * 1989-05-29 1991-01-07 Honda Motor Co Ltd Intake air noise reduction device for internal combustion engine
DE4305333C1 (en) * 1993-02-20 1994-07-07 Fasag Ag Suhr Noise damping device for reducing muzzle noise in systems with pulsating gas flows
DE19618432A1 (en) * 1996-05-08 1997-11-13 Mann & Hummel Filter Intake device for an internal combustion engine
WO1999017012A1 (en) * 1997-10-01 1999-04-08 Filterwerk Mann+Hummel Gmbh Silencer with a bypass resonator
DE10004991A1 (en) * 2000-02-04 2001-08-09 Volkswagen Ag Helmholtz resonator with variable resonance frequency

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546733A (en) * 1983-03-22 1985-10-15 Nippondenso Co., Ltd. Resonator for internal combustion engines
JPH03963A (en) * 1989-05-29 1991-01-07 Honda Motor Co Ltd Intake air noise reduction device for internal combustion engine
DE4305333C1 (en) * 1993-02-20 1994-07-07 Fasag Ag Suhr Noise damping device for reducing muzzle noise in systems with pulsating gas flows
DE19618432A1 (en) * 1996-05-08 1997-11-13 Mann & Hummel Filter Intake device for an internal combustion engine
WO1999017012A1 (en) * 1997-10-01 1999-04-08 Filterwerk Mann+Hummel Gmbh Silencer with a bypass resonator
DE10004991A1 (en) * 2000-02-04 2001-08-09 Volkswagen Ag Helmholtz resonator with variable resonance frequency

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 105 (M - 1092) 13 March 1991 (1991-03-13) *

Also Published As

Publication number Publication date
DE10231238B4 (en) 2004-06-03
DE10231238A1 (en) 2004-01-29
EP1381025A2 (en) 2004-01-14

Similar Documents

Publication Publication Date Title
EP1270891A3 (en) Device for fixing a turbocharger to an exhaust manifold of an internal combustion engine
SE0001645D0 (en) Method and device ventilation of gases in an internal combustion engine
EP2264300A3 (en) System for calculating the cylinder inflow exhaust gas amount and intake passage inflow exhaust gas amount of an internal combustion engine
EP1826391A3 (en) Exhaust gas recirculation device
EP1431546A3 (en) Pressure/temperature calculation apparatus
ATE395125T1 (en) COUNTERFLOW CLEANING SYSTEMS AND METHODS
DE502006005449D1 (en) Device for increasing the braking power of a multi-cylinder internal combustion engine of a vehicle during engine braking operation
ATE380927T1 (en) DEVICE FOR VENTING A CRANKCASE OF AN INTERNAL COMBUSTION ENGINE
EP0867608A3 (en) Air intake apparatus for a four-cycle internal combustion engine
EP0886062A3 (en) Exhaust gas recirculation device
EP1757780A3 (en) Intake manifold
EP1381025A3 (en) Sound damping device having a Helmholtz resonator for installations with pulsating gas flows
EP1221547A3 (en) Canister purge system
EP1469175A3 (en) Intake system of internal combustion engine
ATE281591T1 (en) INTERNAL COMBUSTION ENGINE
EP1138887A3 (en) Acoustic transducer for exhaust gas pulsations
ATE332440T1 (en) ARRANGEMENT FOR THE GAS-TIGHT FASTENING OF AN INTAKE MANIFOLD HAVING A CONNECTING FLANGE TO THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
US20110061635A1 (en) Crankcase Ventilation Device for Internal Combustion Engines
EP1164280A3 (en) Air intake device for a combustion engine
ATE392546T1 (en) SUCTION MODULE, ESPECIALLY FOR AN INTERNAL COMBUSTION ENGINE
SE0300231D0 (en) Arrangement and method for exhaust gas recirculation of an internal combustion engine
WO2004031552A3 (en) Internal combustion engine comprising an exhaust gas turbocharger and an exhaust gas recirculation device
EP1416148A3 (en) Noise reduction part for an air intake tube
EP3557038A3 (en) Functional component for influencing a tank ventilation and arrangement of a functional component for influencing a tank ventilation on an intake line
DE50200612D1 (en) Method for determining the air mass flow from the intake manifold into the cylinder of an internal combustion engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050326

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20100315

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190103