DE69401264D1 - SILENCER - Google Patents

SILENCER

Info

Publication number
DE69401264D1
DE69401264D1 DE69401264T DE69401264T DE69401264D1 DE 69401264 D1 DE69401264 D1 DE 69401264D1 DE 69401264 T DE69401264 T DE 69401264T DE 69401264 T DE69401264 T DE 69401264T DE 69401264 D1 DE69401264 D1 DE 69401264D1
Authority
DE
Germany
Prior art keywords
container
silencer
plates
exhaust gas
discharge opening
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 - Fee Related
Application number
DE69401264T
Other languages
German (de)
Other versions
DE69401264T2 (en
Inventor
Eyvind Frederiksen
Svend Frederiksen
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.)
Silentor AS
Original Assignee
Silentor AS
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 Silentor AS filed Critical Silentor AS
Publication of DE69401264D1 publication Critical patent/DE69401264D1/en
Application granted granted Critical
Publication of DE69401264T2 publication Critical patent/DE69401264T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/085—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using a central core throttling gas passage
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Surgical Instruments (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A silencer, preferably for exhaust gases from internal combustion engines, consisting of a container having a shell (1) formed essentially as a cylinder face, and two end bottoms (2, 3) as well as at least one admission pipe (4) and one discharge pipe (5) for exhaust gas, wherein the flow prior to entering the internal volume of the container is converted to a slot flow between an outer plate (6) and an inner plate (8), said plates being so shaped at their periphery as to form an exhaust gas discharge opening (14), which is positioned radially substantially symmetrically around the pressure node of a transverse oscillation in the container, said plates (6, 8) having a contour direction at the discharge opening (14) which is substantially perpendicular to the radial direction. Improved damping of transverse oscillations in the chamber of the silencer is hereby obtained by simple means.
DE69401264T 1993-02-01 1994-01-31 SILENCER Expired - Fee Related DE69401264T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK011293A DK169823B1 (en) 1993-02-01 1993-02-01 Muffler
PCT/DK1994/000049 WO1994018438A1 (en) 1993-02-01 1994-01-31 A silencer

Publications (2)

Publication Number Publication Date
DE69401264D1 true DE69401264D1 (en) 1997-02-06
DE69401264T2 DE69401264T2 (en) 1997-05-15

Family

ID=8089886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69401264T Expired - Fee Related DE69401264T2 (en) 1993-02-01 1994-01-31 SILENCER

Country Status (7)

Country Link
EP (1) EP0683849B1 (en)
AT (1) ATE146850T1 (en)
AU (1) AU5998594A (en)
DE (1) DE69401264T2 (en)
DK (2) DK169823B1 (en)
ES (1) ES2095745T3 (en)
WO (1) WO1994018438A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828926A1 (en) 1995-05-19 1998-03-18 Silentor A/S A silencer with incorporated catalyst
DK57996A (en) 1996-05-15 1997-11-16 Silentor As Muffler
BR9713244B1 (en) * 1996-09-30 2009-05-05 device for silencing a gas flow, flow system, vehicle, stationary installation, method for sizing and silencing a gas flow.
US6520286B1 (en) 1996-09-30 2003-02-18 Silentor Holding A/S Silencer and a method of operating a vehicle
ATE242659T1 (en) 1997-11-13 2003-06-15 Haldor Topsoe As MIXING DEVICE AND EXHAUST DUCT EQUIPPED WITH IT
CA2373774A1 (en) 1998-03-30 1999-10-07 Silentor Holding A/S A silencer and a method of operating a vehicle
JP4468513B2 (en) * 1998-05-11 2010-05-26 ハルドール・トプサー・アクチエゼルスカベット Mixing device and fuel gas flow path equipped with the mixing device
AU2002224476A1 (en) * 2000-11-02 2002-05-15 Gregory C. Rouse Turbogenerator exhaust silencer
FR2854427A1 (en) * 2003-04-29 2004-11-05 Mig Production Silencer for vehicle e.g. motorcycle, has elongated central body with upstream end having convex surface such that central body has guiding part for guiding exhaust gas and distributing pressure on soundproof sides

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990906A (en) * 1958-10-08 1961-07-04 Koppers Co Inc Acoustic absorber
FR1226438A (en) * 1958-10-09 1960-07-11 Silencer for the flow of fluids
EP0020823A1 (en) * 1979-04-10 1981-01-07 Lionel Fothergill Engine exhaust silencer

Also Published As

Publication number Publication date
ATE146850T1 (en) 1997-01-15
WO1994018438A1 (en) 1994-08-18
DK0683849T3 (en) 1997-03-10
DK169823B1 (en) 1995-03-06
DK11293A (en) 1994-08-02
DK11293D0 (en) 1993-02-01
AU5998594A (en) 1994-08-29
EP0683849B1 (en) 1996-12-27
EP0683849A1 (en) 1995-11-29
DE69401264T2 (en) 1997-05-15
ES2095745T3 (en) 1997-02-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee