FI121029B - Ljuddämpare - Google Patents

Ljuddämpare Download PDF

Info

Publication number
FI121029B
FI121029B FI20040175A FI20040175A FI121029B FI 121029 B FI121029 B FI 121029B FI 20040175 A FI20040175 A FI 20040175A FI 20040175 A FI20040175 A FI 20040175A FI 121029 B FI121029 B FI 121029B
Authority
FI
Finland
Prior art keywords
tube
silencer
damping material
damper
resonant
Prior art date
Application number
FI20040175A
Other languages
English (en)
Finnish (fi)
Other versions
FI20040175A (sv
FI20040175A0 (sv
Inventor
Christer Groenlund
Original Assignee
Sanhem Konsultit Oy
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 Sanhem Konsultit Oy filed Critical Sanhem Konsultit Oy
Priority to FI20040175A priority Critical patent/FI121029B/sv
Publication of FI20040175A0 publication Critical patent/FI20040175A0/sv
Priority to SE0500254A priority patent/SE531118C2/sv
Priority to DK200500174A priority patent/DK177881B1/da
Publication of FI20040175A publication Critical patent/FI20040175A/sv
Application granted granted Critical
Publication of FI121029B publication Critical patent/FI121029B/sv

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02754—Throttle passages using a central core throttling the passage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Pipe Accessories (AREA)

Claims (4)

1. Ljuddämpare (1), i form av ett rör (2) utan ljuddämpande material pä sin inre periferi, i vilken - en längsgäende resonansplät (3) är anordnad inne i röret (2) 25 kännetecknad av att - resonanspläten (3) i sin helhet omges av ett ljudabsorberande material (4), sä att det ljudabsorberande materialet (4) ligger mellan resonanspläten (3) och rörets (2) inre periferi, pä sä sätt att endast det ljudabsorberande materialet (4) kommer i kon- 30 takt med rörets (2) inre yta.
2. Ljuddämpare (1) enligt patentkrav 1, kännetecknad av att resonanspläten (3) har en tjocklek mellan 0,3 och 0,4 mm.
3. Ljuddämpare (1) enligt patentkrav 1, kännetecknad av att resonanspläten (3) 5 har en bredd som utgör ätminstone 2/3 av rörets yttre diameter.
4. Ljuddämpare (1) enligt patentkrav 1, kännetecknad av att resonanspläten (3) och det ljudabsorberande materialet (4) som omger den har förts in i röret (2) ge-nom inskjutning. 10
FI20040175A 2004-02-05 2004-02-05 Ljuddämpare FI121029B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20040175A FI121029B (sv) 2004-02-05 2004-02-05 Ljuddämpare
SE0500254A SE531118C2 (sv) 2004-02-05 2005-02-03 Ljuddämpare
DK200500174A DK177881B1 (da) 2004-02-05 2005-02-04 Lyddæmper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040175 2004-02-05
FI20040175A FI121029B (sv) 2004-02-05 2004-02-05 Ljuddämpare

Publications (3)

Publication Number Publication Date
FI20040175A0 FI20040175A0 (sv) 2004-02-05
FI20040175A FI20040175A (sv) 2005-08-06
FI121029B true FI121029B (sv) 2010-06-15

Family

ID=31725657

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20040175A FI121029B (sv) 2004-02-05 2004-02-05 Ljuddämpare

Country Status (3)

Country Link
DK (1) DK177881B1 (sv)
FI (1) FI121029B (sv)
SE (1) SE531118C2 (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122523B (sv) 2008-04-30 2012-03-15 Metso Paper Inc Lågfrekvensljuddämpare, förfarande för framställande av lågfrekvensljuddämpare och system för dämpande av låga frekvenser till exempel i pappersfabrikers ventilationskanaler
CN114646104B (zh) * 2022-03-17 2023-01-13 江苏利丰空调科技有限公司 一种空调用金属外壳快速安装的片式消声器

Also Published As

Publication number Publication date
DK200500174A (da) 2005-08-06
SE0500254L (sv) 2005-08-06
FI20040175A (sv) 2005-08-06
FI20040175A0 (sv) 2004-02-05
SE531118C2 (sv) 2008-12-23
DK177881B1 (da) 2014-11-03

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