FR2232976A5 - Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls - Google Patents

Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls

Info

Publication number
FR2232976A5
FR2232976A5 FR7320905A FR7320905A FR2232976A5 FR 2232976 A5 FR2232976 A5 FR 2232976A5 FR 7320905 A FR7320905 A FR 7320905A FR 7320905 A FR7320905 A FR 7320905A FR 2232976 A5 FR2232976 A5 FR 2232976A5
Authority
FR
France
Prior art keywords
pipe
tortous
incasing
define
exhaust gas
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
Application number
FR7320905A
Other languages
French (fr)
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to FR7320905A priority Critical patent/FR2232976A5/en
Priority to DE19742427071 priority patent/DE2427071B2/en
Priority to IT2375274A priority patent/IT1014879B/en
Application granted granted Critical
Publication of FR2232976A5 publication Critical patent/FR2232976A5/en
Expired 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • External Artificial Organs (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Exhaust Silencers (AREA)

Abstract

The exhaust pipe has apertures in its side walls for escape of the exhaust gas, and is encased by at least one surrounding chamber. This also has apertures for the gas, but not aligned with those in the pipe. The apertures in the chamber are baffled by a plate attached to the chamber outer wall and parallel or coaxial to the latter, to provide a divergent gas stream escaping into the atmosphere.
FR7320905A 1973-06-08 1973-06-08 Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls Expired FR2232976A5 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7320905A FR2232976A5 (en) 1973-06-08 1973-06-08 Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls
DE19742427071 DE2427071B2 (en) 1973-06-08 1974-06-05 DEVICE FOR ATTENUATING THE SOUND GENERATED BY A FLUID JET
IT2375274A IT1014879B (en) 1973-06-08 1974-06-07 RU MORE REDUCTION DEVICE PRODUCED BY THE DISCHARGE OF A JET OF FLUID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7320905A FR2232976A5 (en) 1973-06-08 1973-06-08 Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls

Publications (1)

Publication Number Publication Date
FR2232976A5 true FR2232976A5 (en) 1975-01-03

Family

ID=9120697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7320905A Expired FR2232976A5 (en) 1973-06-08 1973-06-08 Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls

Country Status (3)

Country Link
DE (1) DE2427071B2 (en)
FR (1) FR2232976A5 (en)
IT (1) IT1014879B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL108701B1 (en) * 1975-04-19 1980-04-30 Assembly of pulsation and noise damper with air filter
DE2922677C2 (en) * 1979-06-02 1982-12-09 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Silencer for valve devices in compressed air brake systems
DE3832029C2 (en) * 1988-09-21 1997-12-11 Wabco Gmbh Compressed air ventilation device
DE9317377U1 (en) * 1993-11-12 1994-02-10 Wilms, Peter, 45731 Waltrop Device for silencing silo vehicles equipped with a conveying air compressor

Also Published As

Publication number Publication date
DE2427071A1 (en) 1975-01-02
IT1014879B (en) 1977-04-30
DE2427071B2 (en) 1976-08-12

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Legal Events

Date Code Title Description
ST Notification of lapse