FR2466613A1 - Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne - Google Patents

Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne Download PDF

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Publication number
FR2466613A1
FR2466613A1 FR7924378A FR7924378A FR2466613A1 FR 2466613 A1 FR2466613 A1 FR 2466613A1 FR 7924378 A FR7924378 A FR 7924378A FR 7924378 A FR7924378 A FR 7924378A FR 2466613 A1 FR2466613 A1 FR 2466613A1
Authority
FR
France
Prior art keywords
gases
pressure
enclosure
silencer
tube
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.)
Granted
Application number
FR7924378A
Other languages
English (en)
French (fr)
Other versions
FR2466613B1 (https=
Inventor
Roger Rosi
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.)
ROSI ETS
Original Assignee
ROSI ETS
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 ROSI ETS filed Critical ROSI ETS
Priority to FR7924378A priority Critical patent/FR2466613A1/fr
Publication of FR2466613A1 publication Critical patent/FR2466613A1/fr
Application granted granted Critical
Publication of FR2466613B1 publication Critical patent/FR2466613B1/fr
Granted legal-status Critical Current

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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
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the exhaust gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
FR7924378A 1979-10-01 1979-10-01 Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne Granted FR2466613A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7924378A FR2466613A1 (fr) 1979-10-01 1979-10-01 Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7924378A FR2466613A1 (fr) 1979-10-01 1979-10-01 Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne

Publications (2)

Publication Number Publication Date
FR2466613A1 true FR2466613A1 (fr) 1981-04-10
FR2466613B1 FR2466613B1 (https=) 1983-01-14

Family

ID=9230166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7924378A Granted FR2466613A1 (fr) 1979-10-01 1979-10-01 Procede et silencieux a regulateur de pression pour attenuer le bruit de l'echappement des moteurs a combustion interne

Country Status (1)

Country Link
FR (1) FR2466613A1 (https=)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB401485A (en) * 1931-10-22 1933-11-16 Andre Francois Pavillon Improvements in silencing devices for gaseous currents
CH191766A (de) * 1936-01-11 1937-06-30 Caspar Eduard Auspufftopf an Verbrennungskraftmaschinen.
US2297046A (en) * 1939-08-25 1942-09-29 Maxim Silencer Co Means for preventing shock excitation of acoustic conduits or chambers
FR1263608A (fr) * 1960-07-22 1961-06-09 Sial S A Dispositif permettant d'améliorer les conditions d'écoulement d'un flux gazeux à caractère périodique
US3402785A (en) * 1965-10-23 1968-09-24 Walker Mfg Co Muffler with resonance chambers for high and low frequencies
US3447629A (en) * 1967-02-06 1969-06-03 Arvin Ind Inc Automotive exhaust system and muffler therefor
US3655011A (en) * 1970-06-10 1972-04-11 Tenneco Inc Sound attenuating chamber

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB401485A (en) * 1931-10-22 1933-11-16 Andre Francois Pavillon Improvements in silencing devices for gaseous currents
CH191766A (de) * 1936-01-11 1937-06-30 Caspar Eduard Auspufftopf an Verbrennungskraftmaschinen.
US2297046A (en) * 1939-08-25 1942-09-29 Maxim Silencer Co Means for preventing shock excitation of acoustic conduits or chambers
FR1263608A (fr) * 1960-07-22 1961-06-09 Sial S A Dispositif permettant d'améliorer les conditions d'écoulement d'un flux gazeux à caractère périodique
US3402785A (en) * 1965-10-23 1968-09-24 Walker Mfg Co Muffler with resonance chambers for high and low frequencies
US3447629A (en) * 1967-02-06 1969-06-03 Arvin Ind Inc Automotive exhaust system and muffler therefor
US3655011A (en) * 1970-06-10 1972-04-11 Tenneco Inc Sound attenuating chamber

Also Published As

Publication number Publication date
FR2466613B1 (https=) 1983-01-14

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ST Notification of lapse