IN165301B - - Google Patents

Info

Publication number
IN165301B
IN165301B IN531/MAS/85A IN531MA1985A IN165301B IN 165301 B IN165301 B IN 165301B IN 531MA1985 A IN531MA1985 A IN 531MA1985A IN 165301 B IN165301 B IN 165301B
Authority
IN
India
Prior art keywords
retaining wall
external envelope
layer
sound
external
Prior art date
Application number
IN531/MAS/85A
Other languages
English (en)
Inventor
Pierre Collod
Jean Louis Pawlak
Original Assignee
Charbonnages De France
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 Charbonnages De France filed Critical Charbonnages De France
Publication of IN165301B publication Critical patent/IN165301B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Exhaust Silencers (AREA)
IN531/MAS/85A 1984-05-18 1985-07-12 IN165301B (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8407711A FR2564532B1 (fr) 1984-05-18 1984-05-18 Silencieux regenerables in situ pour ventilateurs dans les installations de ventilation alimentees en air empoussiere et procede de regeneration in situ de ces silencieux.

Publications (1)

Publication Number Publication Date
IN165301B true IN165301B (cs) 1989-09-16

Family

ID=9304115

Family Applications (1)

Application Number Title Priority Date Filing Date
IN531/MAS/85A IN165301B (cs) 1984-05-18 1985-07-12

Country Status (5)

Country Link
EP (1) EP0165145B1 (cs)
AT (1) ATE36585T1 (cs)
DE (1) DE3564469D1 (cs)
FR (1) FR2564532B1 (cs)
IN (1) IN165301B (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8615909D0 (en) * 1986-06-30 1986-08-06 Tomac Mining Products Ltd Fan silencers
GB2256006B (en) * 1991-05-21 1995-02-22 Harbury Holdings Inc An exhaust system and a silencer therefor
AUPO910697A0 (en) * 1997-09-11 1997-10-02 Hrl Technology Pty Ltd Improved sound attenuating device
SE516302C2 (sv) * 1999-03-26 2001-12-17 Paroc Group Oy Ab Ljuddämparinsats för luft- eller gaskanaler
DE102005020303A1 (de) * 2005-04-30 2006-11-09 Volkswagen Ag Eine die Geräuschemission vermidernde Leitung sowie ein Verbrennungsmotor mit einer solchen Leitung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056608A (en) * 1933-12-22 1936-10-06 C F Burges Lab Inc Silencer
US2073951A (en) * 1935-12-09 1937-03-16 Servais Services Ltd Silencer for gaseous currents
DE2254159C3 (de) * 1972-11-04 1979-09-27 Ferroplast Gesellschaft Fuer Metall- Und Kunststofferzeugnisse Mbh, 4322 Sprockhoevel Schalldämpfer für Luttenlüfter des Untertagebetriebes
US3949830A (en) * 1975-06-20 1976-04-13 George Koch Sons, Inc. Fan silencer
DE3111228C2 (de) * 1981-03-21 1986-07-31 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Verfahren und Vorrichtung zum Beseitigen von Ruß aus den Abgasen einer Brennkraftmaschine

Also Published As

Publication number Publication date
ATE36585T1 (de) 1988-09-15
FR2564532B1 (fr) 1986-09-12
EP0165145A1 (fr) 1985-12-18
EP0165145B1 (fr) 1988-08-17
FR2564532A1 (fr) 1985-11-22
DE3564469D1 (en) 1988-09-22

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