DE29723969U1 - Schalldämpfer - Google Patents

Schalldämpfer

Info

Publication number
DE29723969U1
DE29723969U1 DE29723969U DE29723969U DE29723969U1 DE 29723969 U1 DE29723969 U1 DE 29723969U1 DE 29723969 U DE29723969 U DE 29723969U DE 29723969 U DE29723969 U DE 29723969U DE 29723969 U1 DE29723969 U1 DE 29723969U1
Authority
DE
Germany
Prior art keywords
silencer
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
Application number
DE29723969U
Other languages
English (en)
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.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
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 Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority to DE29723969U priority Critical patent/DE29723969U1/de
Publication of DE29723969U1 publication Critical patent/DE29723969U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
    • F01N1/125—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels 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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
DE29723969U 1996-10-31 1997-10-31 Schalldämpfer Expired - Lifetime DE29723969U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29723969U DE29723969U1 (de) 1996-10-31 1997-10-31 Schalldämpfer

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996144089 DE19644089A1 (de) 1996-10-31 1996-10-31 Schalldämpfer
PCT/EP1997/006018 WO1998019054A1 (de) 1996-10-31 1997-10-31 Schalldämpfer
DE29723969U DE29723969U1 (de) 1996-10-31 1997-10-31 Schalldämpfer

Publications (1)

Publication Number Publication Date
DE29723969U1 true DE29723969U1 (de) 1999-08-12

Family

ID=7809789

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1996144089 Ceased DE19644089A1 (de) 1996-10-31 1996-10-31 Schalldämpfer
DE29723969U Expired - Lifetime DE29723969U1 (de) 1996-10-31 1997-10-31 Schalldämpfer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1996144089 Ceased DE19644089A1 (de) 1996-10-31 1996-10-31 Schalldämpfer

Country Status (2)

Country Link
DE (2) DE19644089A1 (de)
WO (1) WO1998019054A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19932714C2 (de) * 1999-07-16 2001-05-03 Deutsch Zentr Luft & Raumfahrt Rohrförmige luftdurchströmte Vorrichtung mit aktiver Schallreduktionseinrichtung
DE102009000494B4 (de) * 2009-01-29 2017-02-02 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schalldämpfer mit schraubenförmigem Gaskanal
DE102009000645B3 (de) 2009-02-05 2010-07-29 Deutsches Zentrum für Luft- und Raumfahrt e.V. Schalldämpfer mit mindestens einem mittels helikaler Einbauten aufgebauten Helmholtz-Resonator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE189988C (de) *
CH313645A (de) * 1952-12-22 1956-04-30 Passerini Pietro Schalldämpfungsvorrichtung für Explosionsmotoren
SE177601C1 (sv) * 1955-05-11 1961-12-19 J R Andersson & Co A B Ljuddämpare för strömmande gaser
US3132717A (en) * 1955-05-27 1964-05-12 Bolt Beranek & Newman Acoustically absorbent conduit
FR1149456A (fr) * 1955-10-29 1957-12-26 Andre Boet Et Cie Perfectionnements aux silencieux, notamment pour moteurs à explosion
US2924296A (en) * 1957-07-25 1960-02-09 Clark Equipment Co Dry muffler and mounting means therefor

Also Published As

Publication number Publication date
DE19644089A1 (de) 1998-05-14
WO1998019054A1 (de) 1998-05-07

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19990923

R150 Term of protection extended to 6 years

Effective date: 20001123

R151 Term of protection extended to 8 years

Effective date: 20031015

R158 Lapse of ip right after 8 years

Effective date: 20060503

R081 Change of applicant/patentee

Owner name: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V, DE

Free format text: FORMER OWNER: DEUTSCHES ZENTRUM FUER LUFT- UND RAUMFAHRT E.V., 53175 BONN, DE

Effective date: 20060621