FR2484339A1 - First or second stage vehicle silencer - has internal baffles with geometry selected to accommodate gas flow - Google Patents

First or second stage vehicle silencer - has internal baffles with geometry selected to accommodate gas flow Download PDF

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Publication number
FR2484339A1
FR2484339A1 FR8013479A FR8013479A FR2484339A1 FR 2484339 A1 FR2484339 A1 FR 2484339A1 FR 8013479 A FR8013479 A FR 8013479A FR 8013479 A FR8013479 A FR 8013479A FR 2484339 A1 FR2484339 A1 FR 2484339A1
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FR
France
Prior art keywords
gas flow
baffles
internal baffles
geometry selected
stage vehicle
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
FR8013479A
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French (fr)
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FR2484339B1 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8013479A priority Critical patent/FR2484339B1/en
Publication of FR2484339A1 publication Critical patent/FR2484339A1/en
Application granted granted Critical
Publication of FR2484339B1 publication Critical patent/FR2484339B1/en
Expired 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
    • F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow

Abstract

The first or second stage silencer is made of stainless steel. Its expansion chamber (1) has an assembly of baffles (3) with multiple holes. The geometry of these varies with the admission of gas. Alternatively, there can be semi-circular baffles, specially placed. There can be two or more baffles inside the chamber to create baffle volumes as a function of gas flow and its pulsating frequency. The chamber has end plates (2) welded on and in the centre of these are welded inlet and outlet pipes (4).

Description

DESCRIPTION
Le présent pot d'échappement pernlet de faire passer les gaz à travers celui-ci, d'une certaine turbulance régulière, grâce à une répartition intérieure des parois repartie d'une certaine façon.DESCRIPTION
The present exhaust pernlet to pass the gases through it, a certain regular turbulance, thanks to an internal distribution of the walls distributed in a certain way.

I1 est composé de tôle inox, donc pratiquement inusable. It is made of stainless steel sheet, therefore practically wear-free.

Sa composition intérieure différencie de ceux actuellement commercialisés. Its interior composition differs from those currently marketed.

Tel qu'il est représenté il se compose : Qi d'une enveloppe, 2 de deux plaques à chaque extrémités soudées à l'enveloppe, traversées à l'axe par 4 deux petits tubes, Ode plaques intérieures percées judicieusement reportées ou espacées entre elles d'une certaine façon et soudées sur l'enve- loppe. As shown it consists of: Qi of an envelope, 2 of two plates at each end welded to the envelope, crossed at the axis by 4 two small tubes, Ode internal plates pierced judiciously carried or spaced between them in a certain way and welded to the envelope.

Claims (1)

REVENDICATION CLAIM Silencieux d'échappement caractérisé en ce que son dispositif de détente se réclame d'un ensemble de cloisons 3 percées dont la géométrie des surfaces percées varie nvec l'admission du fluide et/ou d'un ensemble do cloisons 3 semi-circulaires judicieusement espacées en -re-elles en association dç deux ou plusieurs cloisons, disposé à l'intérieur d'une enveloppe 1 de façon à créer des volumes de détente en fonction du débit du fluide e-t de sa fréquence pulsatoire. L'envelonpe, les parois et les autres éléments constitutifs du silencieux étant constitués d'un matériau resistant à la corrosion. Exhaust silencer characterized in that its expansion device requires a set of 3 drilled partitions whose geometry of the drilled surfaces varies with the admission of the fluid and / or a set of 3 semi-circular partitions judiciously spaced in-them in combination with two or more partitions, disposed inside an envelope 1 so as to create expansion volumes as a function of the flow rate of the fluid and of its pulsating frequency. The envelope, the walls and the other constituent elements of the silencer being made of a material resistant to corrosion.
FR8013479A 1980-06-17 1980-06-17 PRIMARY OR SECONDARY EXHAUST PIPE (MUFFLER) Expired FR2484339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8013479A FR2484339B1 (en) 1980-06-17 1980-06-17 PRIMARY OR SECONDARY EXHAUST PIPE (MUFFLER)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8013479A FR2484339B1 (en) 1980-06-17 1980-06-17 PRIMARY OR SECONDARY EXHAUST PIPE (MUFFLER)

Publications (2)

Publication Number Publication Date
FR2484339A1 true FR2484339A1 (en) 1981-12-18
FR2484339B1 FR2484339B1 (en) 1986-10-10

Family

ID=9243211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8013479A Expired FR2484339B1 (en) 1980-06-17 1980-06-17 PRIMARY OR SECONDARY EXHAUST PIPE (MUFFLER)

Country Status (1)

Country Link
FR (1) FR2484339B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007108686A1 (en) * 2006-03-22 2007-09-27 Aluheat B.V. Sound reduction provision for heat apparatuses
CN101571064A (en) * 2009-06-12 2009-11-04 力帆实业(集团)股份有限公司 Car main muffler structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555638A (en) * 2015-09-25 2017-04-05 石家庄博鼎机电设备有限公司 A kind of iris type casing muffler

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR327933A (en) * 1902-12-16 1903-07-07 Zula Josephine Muffler silencer says: the silent, for automobiles, etc.
FR352443A (en) * 1905-03-16 1905-08-10 Societe L. Dutheil, R. Chalmers & Cie Exhaust
US2202272A (en) * 1939-02-11 1940-05-28 Harold D Smith Silencer
US2392247A (en) * 1943-05-11 1946-01-01 Katcher Morris Muffler
US2919761A (en) * 1957-05-13 1960-01-05 Vernon N Holderman Mufflers
FR1245851A (en) * 1958-12-29 1960-11-10 Exhaust for vehicles with internal combustion engine
US3029896A (en) * 1958-03-24 1962-04-17 Lyon Inc Muffler structure with baffle means
FR2164305A5 (en) * 1971-12-06 1973-07-27 Safety Vehicles Develop

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR327933A (en) * 1902-12-16 1903-07-07 Zula Josephine Muffler silencer says: the silent, for automobiles, etc.
FR352443A (en) * 1905-03-16 1905-08-10 Societe L. Dutheil, R. Chalmers & Cie Exhaust
US2202272A (en) * 1939-02-11 1940-05-28 Harold D Smith Silencer
US2392247A (en) * 1943-05-11 1946-01-01 Katcher Morris Muffler
US2919761A (en) * 1957-05-13 1960-01-05 Vernon N Holderman Mufflers
US3029896A (en) * 1958-03-24 1962-04-17 Lyon Inc Muffler structure with baffle means
FR1245851A (en) * 1958-12-29 1960-11-10 Exhaust for vehicles with internal combustion engine
FR2164305A5 (en) * 1971-12-06 1973-07-27 Safety Vehicles Develop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007108686A1 (en) * 2006-03-22 2007-09-27 Aluheat B.V. Sound reduction provision for heat apparatuses
CN101571064A (en) * 2009-06-12 2009-11-04 力帆实业(集团)股份有限公司 Car main muffler structure

Also Published As

Publication number Publication date
FR2484339B1 (en) 1986-10-10

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