EP1380730A1 - Silencieux - Google Patents

Silencieux Download PDF

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Publication number
EP1380730A1
EP1380730A1 EP03015086A EP03015086A EP1380730A1 EP 1380730 A1 EP1380730 A1 EP 1380730A1 EP 03015086 A EP03015086 A EP 03015086A EP 03015086 A EP03015086 A EP 03015086A EP 1380730 A1 EP1380730 A1 EP 1380730A1
Authority
EP
European Patent Office
Prior art keywords
elements
housing
silencer according
silencer
guide elements
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.)
Granted
Application number
EP03015086A
Other languages
German (de)
English (en)
Other versions
EP1380730B1 (fr
Inventor
Peter Weinhold
Peter Wintrich
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.)
3w-Modellmotoren Weinhold & Wintrich GmbH
Original Assignee
3w-Modellmotoren Weinhold & Wintrich GmbH
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 3w-Modellmotoren Weinhold & Wintrich GmbH filed Critical 3w-Modellmotoren Weinhold & Wintrich GmbH
Publication of EP1380730A1 publication Critical patent/EP1380730A1/fr
Application granted granted Critical
Publication of EP1380730B1 publication Critical patent/EP1380730B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/086—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling having means to impart whirling motion to the gases
    • F01N1/088—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling having means to impart whirling motion to the gases using vanes arranged on gas flow path or gas flow tubes with tangentially directed apertures
    • 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
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes

Definitions

  • the invention relates to a silencer, in particular for Internal combustion engines is designed with one of a gaseous Medium flowed through, at least one housing chamber Housing in which serves to swirl the gaseous medium Deflection elements along a housing axis one behind the other and in Distance from each other are arranged stationary.
  • Such silencers are for example from DE 848 877 and from known from DE 197 56 468 C1.
  • In the former case are as Deflection serving locking plates provided and such in the Housing used that they without metallic contact with the Form the labyrinthine flow paths for the gases.
  • sound-absorbing material is provided and dresses in shape a lining padding the inner wall of the housing.
  • fan-like disks are in the Housing fixedly arranged to swirl the gaseous Effect medium. Between two successive ones Panels are disc-like insulation segments from one Sound insulation material installed and have free through openings on.
  • silencers are known in which by means of complex Arrangement of tubes and / or perforated partitions and / or Damping wool and possibly additional Aftermuffler the exhaust gas flow - in the case of Internal combustion engines - broken and therefore the noise of the exiting exhaust gas is reduced.
  • damping systems can with regard to the damping effect and / or the effort and / or the adaptability to the respective individual case is not fully Satisfy scope.
  • the invention is based on the object To create a silencer that is particularly simple and on the one hand consists of simply designed elements and on the other hand is particularly effective and flexible, so that it is also easy on different operating conditions can be adapted.
  • the invention provides with the features of characterizing part of claim 1 before that as Deflection element in each case a disc-shaped, having slots Body is provided and over the cross section of the Housing chamber extends and that the slots delimiting, Guide vane-like guide elements from adjacent, disk-shaped Bodies the flow differently to the main axis of the housing redirect.
  • Such a silencer comes without the use of Soundproofing material. There are no lining pads on the Inner walls of the housing still insulation Sound insulation material required between the deflection elements. Already deflecting the flow with the help of the guide vane-like Guiding elements causes sound insulation, whereby Cancel each other out. This is achieved above all due to different angles of attack, especially if the Guide elements of adjacent, disc-shaped bodies are preferably angled opposite each other.
  • deflections and deflections take place as well also turbulence in the gas flow in the present case such that good sound absorption results.
  • the silencer is especially useful when using circular, disc-shaped bodies in an axial arrangement simply and compactly built one after the other.
  • the sound damping effect can also be easily to the adapt to the respective requirements, including the number of slots Deflection elements and / or the number of guide vane-like Guide elements per deflecting element and / or the shape and shape of the Guide elements and / or the angle of attack of the guide elements and / or the Angle of attack between adjacent deflection elements are changeable. This enables a special one in a simple manner Adaptation to each individual case or to different ones Engines.
  • a silencer 1 comprises a housing 2, with at least one Housing part or a housing chamber.
  • the housing 2 is one serving as a housing chamber, pot-shaped head piece 3 with a front end wall 4 and also as a housing chamber serving, cup-shaped housing part 5 is formed.
  • the housing 2 has also a cylindrical peripheral wall 6 and one at one end End wall 7 on.
  • FIGS. 1 and 2 Embodiments shown a mounting edge 8 with a slightly larger diameter and with in the circumferential direction distributed mounting holes 9.
  • the housing part 5 is with its open end under the mounting edge 8 of the head piece 3 to System inserted. In the installation position, the head piece 3 and that Housing part 5 firmly connected. There are fasteners for this 10 provided which extend through the mounting holes 9. Screws or rivets come in as fastening means 10 Consideration.
  • a support tube 11 with a circular Cross section along a housing axis.
  • the support tube 11 projects with its one end through the end wall 4 to the outside and forms one there Inlet port while its other, also open end is spaced before the end wall 7 (Fig. 1) ends inside the housing 2.
  • the gaseous medium / exhaust gas flows through the Carrier tube 11 in the housing 2 and passes through a Outlet connector / outlet connector 12 from the housing 2.
  • This Outflow connection 12 can be arranged in a radial arrangement on the head piece 3 attached and open to the outside and the inside of the housing 2 his.
  • FIGS. 1 and 2 and 5 As soundproofing or swirling elements are according to the embodiments shown in FIGS. 1 and 2 and 5 four impeller-like deflection elements 13, 14, 15 and 16, respectively intended. You can use a bushing or ring-shaped hub part 17 on the support tube 11 to be put off. They are non-rotatable or stationary on the Support tube 11 arranged, this by a shape or frictional connection between the hub parts 17 and the Support tube 11 or achieved by a separate locking can be.
  • Each impeller-like deflection element 13 to 16 forms one Muffler level and has several wing respectively guide vane-like guide elements 18.
  • the exemplary embodiments shown are the deflection elements 13 to 16 ' in each case disk-shaped and slotted bodies 17 'each with approx. 20 Guide vane-like guide elements 18.
  • the Deflection elements 13 and, respectively, the disc-shaped, slotted body 17 'with their guide vane-like guide elements each in one piece. In the housing 2 they extend to the cylindrical peripheral wall 6.
  • each deflection element 13 to 16 are below a uniform angle of attack ⁇ of, for example, 15 ° (preferably between ° and °) compared to the corresponding Radial planes 19 inclined or angled.
  • the angles of attack ⁇ are expediently more adjacent Deflection elements made positive or negative, as shown in FIG. 2 evident. Originally essentially axially directed Flow is therefore deflected accordingly.
  • the disk-shaped bodies 17 ' are flat Sheet metal rings and as a disc blank get narrow as well as radial and slots 18 'extending in a straight line from the outside inwards.
  • the Guide elements 18 are because of the slots 18 'and because of Annular shape of the disk-shaped body 17 'each in the shape of an annular sector. Because of the positive and / or negative angle of attack of the guide elements are slot-shaped through openings in each deflecting element with the result that the gaseous medium regardless of the respective distractions in the longitudinal direction of the Housing 2 can flow through the deflection elements 13 to 16.
  • the representations in the figures show that the housing 2 of the Muffler 1 not completely having guide elements 18 Deflection elements corresponding to elements 13 to 16 are occupied got to. Although the deflection elements 13 to 16, 16 'for swirling the Flow medium along the main axis of the housing 19 'one behind the other and are arranged in a fixed distance from each other, that Housing 2 preferably a completely blank Housing chamber part 2 '.
  • the housing chamber part 2 ' serves as Calming section.
  • 1 and 2 is a comparatively short support tube 11 (for four Deflection elements) 13 to 16 in connection with a comparative long housing part 5 is provided, which is two or even three times the number could take up of deflection elements. Therefore it can be used Utilization of the resulting from the compact design Possibilities in connection with the variation of the number of Deflection elements make sense for the head piece 3 different Provide housing parts 2 and support tubes 11 with a stepped length, the then depending on the respective application be assembled.
  • the function of the support tube which also serves as an inlet connector 11 in the embodiment of FIG. 1 is omitted in the 5, because there is a centrally arranged Carrier or a support element 24 for carrying only and / or connecting those consisting of deflection elements 13 to 16 Muffler levels 25.
  • FIGS. 1 and 5 four or five silencer stages 25 are provided. Corresponding the respective conditions can also more or less Muffler stages 25 along the central support tube 11 / support element 24 may be arranged.
  • the silencer according to the invention also a very low flow resistance compared to conventional mufflers.
  • the deflection elements can consist of metal and solid or permeable guide elements, for example in the form of a have fine mesh expanded metal. Furthermore come as materials plastics or composite materials are also considered.
  • the deflection elements 13 to 16 also prevent one Backlog in the silencer 1, which is in the case of a Combustion engine has a thermally favorable effect.
  • variable arrangement and the variable number of Deflection elements in connection with variable angles of attack by far Scope of positive and negative angle sizes can also be filter out certain frequencies or wanted vibrations produce.
  • the silencer is comparatively simple and compact.
  • the distance from the main axis of the housing 19 ' arranged ends of the guide elements 18 are angled more than their ends close to the main housing axis 19 ' or that the guide elements 18 at least partially in themselves can be twisted.
  • the impeller-like have Deflection elements of the exemplary embodiments are preferred production-related in the foot area of the guide vane-like guide elements 18 opposite, short, circumferential slots 18 " on.
  • each guide element 18 is only over a narrow, in the web not shown connected to the hub part 17. Reached is thereby that, if necessary, each wing-like guide element 18 despite given the angle of attack ⁇ a completely flat, flat shape can be.
  • the guide elements 18 after Slits are also punctiform in the circumferential direction in the foot area on the hub part 17 or on the support tube 11 / on the support element 24 be soldered on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Surgical Instruments (AREA)
EP03015086A 2002-07-04 2003-07-03 Silencieux Expired - Lifetime EP1380730B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10230044A DE10230044A1 (de) 2002-07-04 2002-07-04 Schalldämpfer
DE10230044 2002-07-04

Publications (2)

Publication Number Publication Date
EP1380730A1 true EP1380730A1 (fr) 2004-01-14
EP1380730B1 EP1380730B1 (fr) 2006-05-24

Family

ID=29723700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015086A Expired - Lifetime EP1380730B1 (fr) 2002-07-04 2003-07-03 Silencieux

Country Status (4)

Country Link
US (1) US7073626B2 (fr)
EP (1) EP1380730B1 (fr)
AT (1) ATE327420T1 (fr)
DE (2) DE10230044A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR982302A0 (en) 2002-01-03 2002-01-31 Pax Fluid Systems Inc. A fluid flow controller
FR2852354B1 (fr) * 2003-03-13 2006-08-04 Giat Ind Sa Dispositif de dilution des gaz d'echappement
AU2003903386A0 (en) * 2003-07-02 2003-07-17 Pax Scientific, Inc Fluid flow control device
DE10336175B4 (de) * 2003-08-07 2012-07-12 Andreas Stihl Ag & Co. Kg Abgasschalldämpfer
US20090045007A1 (en) * 2007-08-13 2009-02-19 Counts Paul H Muffler with cyclonic plates
ES2304329B1 (es) * 2008-04-18 2009-09-16 Pedro Claverias Torres Dispositivo para la conformacion de encofrados.
ES2350358B1 (es) * 2008-04-18 2011-11-08 Pedro Claverias Torres Dispositivo para la construccion de encofrados y tabiques recuperables.
US7926256B2 (en) * 2008-10-27 2011-04-19 General Electric Company Inlet system for an EGR system
US8104572B2 (en) * 2010-01-22 2012-01-31 Butler Boyd L Spin muffler
DE112016000888T5 (de) 2015-02-24 2017-11-16 Tenneco Automotive Operating Company Inc. Doppelschneckenmischsystem
US9534525B2 (en) 2015-05-27 2017-01-03 Tenneco Automotive Operating Company Inc. Mixer assembly for exhaust aftertreatment system
CN108996482B (zh) * 2018-07-18 2020-03-20 杭州科技职业技术学院 一种用于psa制氮机的消音器
KR102140002B1 (ko) * 2019-07-31 2020-08-03 재단법인 파동에너지 극한제어 연구단 유체 소음기

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB198229A (en) * 1922-06-20 1923-05-31 Reginald Ford Improvements in silencers for use with internal combustion engines

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797310A (en) * 1931-03-24 Alfbed j
US1340158A (en) * 1917-11-19 1920-05-18 El Dorado Jones Exhaust-muffler
US1761971A (en) * 1928-06-25 1930-06-03 Gen Motors Corp Muffler
US1818469A (en) * 1930-01-06 1931-08-11 Elmer R Scott Muffler for engines
US2063270A (en) * 1935-06-03 1936-12-08 Bacchetti-Righetti Giorgio Silencer for internal combustion engines
US2158030A (en) * 1935-06-28 1939-05-09 Aeroplane Improvements Ltd Muffler
US2076827A (en) * 1936-04-21 1937-04-13 Ross Ruth Warren Exhaust muffler
US2359365A (en) * 1943-05-20 1944-10-03 Katcher Morris Muffler
DE848877C (de) 1950-08-18 1952-09-08 Ludwig Rauch Schalldaempfer fuer Verbrennungsmotoren
US2663378A (en) * 1950-12-11 1953-12-22 Keller William Baffle type muffler
SU317295A1 (ru) * 1970-03-23 1986-02-23 Rubinshtejn Sh L Глушитель-искрогаситель
JPS49128124A (fr) * 1973-04-18 1974-12-07
JPS59158308A (ja) * 1983-02-28 1984-09-07 Hisao Kojima 消音装置
KR100306339B1 (ko) * 1999-02-05 2001-09-13 이옥노 내연기관용 소음기

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB198229A (en) * 1922-06-20 1923-05-31 Reginald Ford Improvements in silencers for use with internal combustion engines

Also Published As

Publication number Publication date
DE10230044A1 (de) 2004-02-05
ATE327420T1 (de) 2006-06-15
EP1380730B1 (fr) 2006-05-24
DE50303435D1 (de) 2006-06-29
US20040065505A1 (en) 2004-04-08
US7073626B2 (en) 2006-07-11

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