US1701397A - Muffler - Google Patents

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Publication number
US1701397A
US1701397A US56662A US5666225A US1701397A US 1701397 A US1701397 A US 1701397A US 56662 A US56662 A US 56662A US 5666225 A US5666225 A US 5666225A US 1701397 A US1701397 A US 1701397A
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United States
Prior art keywords
tubular member
partition
shell member
outer shell
members
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Expired - Lifetime
Application number
US56662A
Inventor
John T Trumble
Frank U Winchester
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Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US56662A priority Critical patent/US1701397A/en
Application granted granted Critical
Publication of US1701397A publication Critical patent/US1701397A/en
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Expired - Lifetime 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • 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 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/18—Exhaust treating devices having provisions not otherwise provided for for improving rigidity, e.g. by wings, ribs
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

Definitions

  • This invention relates to muiers and it is the object of the invention to providel an effective mufller which can becheaply made out of sheet metal and easily assembled but will nevertheless have embodied in it such features ofconstruction as to enable it to give satisfactory service throughout the life of the car.
  • a muffler comprising a tubular member, preferably in the form of a sheet metal pipe, in which is provided the customary partition; surrounding this we have provided an inner shell memoer composed oftwo longitudinalsections secured together at their edges and having reduced ends to enable it to snugly embrace the tubular member to which it is either riveted or welded; surrounding the inner shell member and preferably spaced from it is the outer shellY member likewise made of two longitudinal sections and having its ends also reduced and secured to the tubular member.
  • the end of the inner shell member remote from the engine embraces the tubular member and is secured to it at the point where the partition is located, while the correspondin end of the outer shell member embraces an is secured to the tubular member on the side' ofthe partition remote from the engine.
  • the muffler so constructed is apertured in a manner to be later described so as to provide a tortuous path for the exhaust gases.
  • Figure 1 is a plan view of our improved muiier ywith parts of the outer shell member shown broken away;
  • FIG. 2 is a plan view of our mu.r with the outer shell member removed and the inner shell member shown partly broken away;
  • Figire 3 is a section on line 3--3 of Figure .1' an Y 5 Figures 4 and 5 are views corresponding to Figures 1 and 3 and showing the modified form of our invention. l
  • Our muler comprises a tubular member 2, formed from a strip of sheet metal. Within this tubular member and preferably toward the end thereof remote from the engine is located a partition 6 constituted by adisk of sheet metal having an annular flange 8 closely tting the interior ofthe tubular member. Surrounding the tubular member is the in- MUFFLER.
  • lner shell member 10 composed of longitudlnal sections 12 and 14, preferably counterparts, having outwardly extending flanges 16 and 18 respectively, which are adapted to be secured together as by riveting or welding.
  • the ends of the inner shell member 10 are preferably reduced as shown at 20 and 22 1n order that they may snugly embrace the tubular member and may be securely fastened thereto.
  • the part 22 encircles the tubular member at the point where the partition 8 is located so that this 'part may be secured to the tubular member 2 and the flange 8 of the partition 6 b3 f one riveting or welding operation if desired.
  • the inner shell member 10 is surrounded by the outer shell member 24 lwhich is of Substantially the same construction as the member 10; that is, it is composed of counterpart longitudinal sections 26 and 27 having outwardly extending flanges which are secured together in any suitable manner, the sections having their ends reduced at 28 and 29 to snugly embrace the tubular member to which they are secured.
  • the anges of the inner shell member are spaced 90 from the flanges of the outer shell member.
  • gases pass through the tubular member from the left, strike the partition 6 and are deflected through the apertures formed therein, whereupon-.they are redirected in the opposite direction and traverse the length of apertures 3 2 into the interior of the outer shell member 24 where they are again redirected and finally pass out through the apertures 34 on the far side of the partition 6 into the ⁇ tubular member whence they escape into the atmosphere.
  • the inner shell member 10 passing out through i is the tubular member the meeting edges of Which are Ipreferably interlocked as at 36.
  • the inner and outer shell members 38 and 40 Surrounding the tubular member are the inner and outer shell members 38 and 40, respectively, corresponding generally to the inner .and outer shell members 10 and 24 of the preerred form ,of our invention.
  • the flanges of the inner and outer shell members are arranged in overlapping relation, the flanges of one of the sections of the outer shell member preferably being Wider than the anges of the other members so that they may be turned overas at 42 to hold the sections in assembled relation.
  • the inner shell member 38 is of elliptical formation.
  • the purpose of this change is to permit a different arrangement of passages for the exhaust gases.
  • the exhaust gases entering the tubular member 35 are afforded outward passage thron h the apertures 44 in the tubular member, t ese passages being arranged in longitudinal alinement opposite the nearest portions of the member 38.
  • the gases passing through these passages then iind their Way to the portions of the member 38 farther removed from the tubular member 35 Where they are discharged through passages 46" into the interior of the outer shell member 40. They are discharged from the interior of this member into the interior of the tubular member 35 through apertures 48 in the latter on the far side of the partition 49.
  • a sheet metal muiier comprising an outer shell member compose-d of longitudinal sections secured together at their edges, an inner shell member composed of longitudinal sections secured together at their edges and located entirely lWithin the outer shell member, said members being apertured for the passage of exhaust gases from the interior of one shell member to the interior of the other shell member, and a tubular member passing through the inner shell member and the outer shell member and to which each of said members is independently secured one beyond the member and each of said shell members.
  • tubular member having a partition ar- 'ranged therein and having independent communication with said shell members on opposite sides of said partition.
  • said members being apertured for/the passage of exhaust gas, and an outer shell member surrounding said inner shell member and having its ends reduced for snug engagement with said tubular member beyond the ends of the inner shell, and means for establishing communication lbetween the interior of said outer shell member and the interior of said tubular member.
  • a sheet metal muwriterr including a tubular member having a partition therein, apair of semi-cylindrical longitudinal sections secured together at adjacent yedges to form a shell sur rounding said tubular member and having its ends reduced for snug engagement with said tubular member, one of said reduced ends engaging the tubular member Iat said partition, and a Apair of semi-cylindrical lon itudinal sections of greater extent than the rst mentioned sections, secured together at adjacent edges to form a second shell completely enclosing thei first mentioned shell and surrounding the tubular member, and having its ends reduced for snug engagement with said tubular member be ond .the ends of the first mentioned shel y In testimony whereof We aix our signatures.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Description

Feh 5, 1929. 1,701,397
J. T. TRUMBLE ET AL MUFFLER Filed Sept. 16, 1925 2 Sheets-Sheet 2 OCCCCGO Patented Feb. 5, 1929. p
UNITED STATESy PATENT OFFICE.
JOHN T. TRUMBLE AND FRANK U. WINQHESTER, or' LANSING, MICHIGAN; SAID TBUMBLE .ASSIGNOR TO GENERAL MOTORS CORPORATION, OF DETROIT, MICHIGAN,
A CORPORATION OF DELAWARE.
Application med September 16, 1925.
This invention relates to muiers and it is the object of the invention to providel an effective mufller which can becheaply made out of sheet metal and easily assembled but will nevertheless have embodied in it such features ofconstruction as to enable it to give satisfactory service throughout the life of the car. Y g
In detail, we have provided a muffler comprising a tubular member, preferably in the form of a sheet metal pipe, in which is provided the customary partition; surrounding this we have provided an inner shell memoer composed oftwo longitudinalsections secured together at their edges and having reduced ends to enable it to snugly embrace the tubular member to which it is either riveted or welded; surrounding the inner shell member and preferably spaced from it is the outer shellY member likewise made of two longitudinal sections and having its ends also reduced and secured to the tubular member.
The end of the inner shell member remote from the engine embraces the tubular member and is secured to it at the point where the partition is located, while the correspondin end of the outer shell member embraces an is secured to the tubular member on the side' ofthe partition remote from the engine. The muffler so constructed is apertured in a manner to be later described so as to provide a tortuous path for the exhaust gases.
Referring now to the drawings which showv two different formswhich our invention may assume: A
Figure 1 is a plan view of our improved muiier ywith parts of the outer shell member shown broken away;
- Figure 2 is a plan view of our muiiler with the outer shell member removed and the inner shell member shown partly broken away;
Figire 3 is a section on line 3--3 of Figure .1' an Y 5Figures 4 and 5 are views corresponding to Figures 1 and 3 and showing the modified form of our invention. l
. Our muler comprises a tubular member 2, formed from a strip of sheet metal. Within this tubular member and preferably toward the end thereof remote from the engine is located a partition 6 constituted by adisk of sheet metal having an annular flange 8 closely tting the interior ofthe tubular member. Surrounding the tubular member is the in- MUFFLER.
Serial No. 56,662.
lner shell member 10 composed of longitudlnal sections 12 and 14, preferably counterparts, having outwardly extending flanges 16 and 18 respectively, which are adapted to be secured together as by riveting or welding. The ends of the inner shell member 10 are preferably reduced as shown at 20 and 22 1n order that they may snugly embrace the tubular member and may be securely fastened thereto. It will be noted that the part 22 encircles the tubular member at the point where the partition 8 is located so that this 'part may be secured to the tubular member 2 and the flange 8 of the partition 6 b3 f one riveting or welding operation if desired.
The inner shell member 10 is surrounded by the outer shell member 24 lwhich is of Substantially the same construction as the member 10; that is, it is composed of counterpart longitudinal sections 26 and 27 having outwardly extending flanges which are secured together in any suitable manner, the sections having their ends reduced at 28 and 29 to snugly embrace the tubular member to which they are secured. In this lembodiment in the assembled mufli'er the anges of the inner shell member are spaced 90 from the flanges of the outer shell member. It is to be noted gases pass through the tubular member from the left, strike the partition 6 and are deflected through the apertures formed therein, whereupon-.they are redirected in the opposite direction and traverse the length of apertures 3 2 into the interior of the outer shell member 24 where they are again redirected and finally pass out through the apertures 34 on the far side of the partition 6 into the `tubular member whence they escape into the atmosphere.
In the form shown in Figures 4 and 5, 35
the inner shell member 10 passing out through i is the tubular member the meeting edges of Which are Ipreferably interlocked as at 36. Surrounding the tubular member are the inner and outer shell members 38 and 40, respectively, corresponding generally to the inner .and outer shell members 10 and 24 of the preerred form ,of our invention. In this form the flanges of the inner and outer shell members are arranged in overlapping relation, the flanges of one of the sections of the outer shell member preferably being Wider than the anges of the other members so that they may be turned overas at 42 to hold the sections in assembled relation.
It Will also be noted that the inner shell member 38 is of elliptical formation. The purpose of this change is to permit a different arrangement of passages for the exhaust gases. Thus the exhaust gases entering the tubular member 35 are afforded outward passage thron h the apertures 44 in the tubular member, t ese passages being arranged in longitudinal alinement opposite the nearest portions of the member 38. The gases passing through these passages then iind their Way to the portions of the member 38 farther removed from the tubular member 35 Where they are discharged through passages 46" into the interior of the outer shell member 40. They are discharged from the interior of this member into the interior of the tubular member 35 through apertures 48 in the latter on the far side of the partition 49.
While We have shown and described several illustrative embodiments of our invention, it is not our intention to limit its scope to those particular embodiments, or otherwise than by the terms of the appended claims.
What We claim is:
1. A sheet metal muiier comprising an outer shell member compose-d of longitudinal sections secured together at their edges, an inner shell member composed of longitudinal sections secured together at their edges and located entirely lWithin the outer shell member, said members being apertured for the passage of exhaust gases from the interior of one shell member to the interior of the other shell member, and a tubular member passing through the inner shell member and the outer shell member and to which each of said members is independently secured one beyond the member and each of said shell members.
the inner shell member and the outer shell member and to which each of said members is independently secured one beyond the other, said tubular member having a partition ar- 'ranged therein and having independent communication with said shell members on opposite sides of said partition.
3. In a sheet metal muiiler, the combination of a tubular member having a partition therein, an inner shell member surrounding said tubular member and having its ends reduced for snug engagement with said tubular member, one of said reduced ends engaging said member at the partition,'and means for se` curing said members in assembled relation,
said members being apertured for/the passage of exhaust gas, and an outer shell member surrounding said inner shell member and having its ends reduced for snug engagement with said tubular member beyond the ends of the inner shell, and means for establishing communication lbetween the interior of said outer shell member and the interior of said tubular member.
4. A sheet metal muiiler including a tubular member having a partition therein, apair of semi-cylindrical longitudinal sections secured together at adjacent yedges to form a shell sur rounding said tubular member and having its ends reduced for snug engagement with said tubular member, one of said reduced ends engaging the tubular member Iat said partition, and a Apair of semi-cylindrical lon itudinal sections of greater extent than the rst mentioned sections, secured together at adjacent edges to form a second shell completely enclosing thei first mentioned shell and surrounding the tubular member, and having its ends reduced for snug engagement with said tubular member be ond .the ends of the first mentioned shel y In testimony whereof We aix our signatures.
FRANK U. WINCHESTER. J T. TRUMBLE.
US56662A 1925-09-16 1925-09-16 Muffler Expired - Lifetime US1701397A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835336A (en) * 1953-07-15 1958-05-20 Oldberg Mfg Company Silencer or muffler
US3086611A (en) * 1961-04-14 1963-04-23 Oscar E Nelson Engine muffler
FR2483516A1 (en) * 1980-05-29 1981-12-04 Roth Technik Gmbh QUIET
EP0068368A1 (en) * 1981-06-26 1983-01-05 Nissan Motor Co., Ltd. Muffler
FR2547623A1 (en) * 1983-06-15 1984-12-21 Luchaire Ind Echappements DEVICE FOR CONDUCTING A FLUID, PARTICULARLY SILENT
EP0298379A1 (en) * 1987-07-10 1989-01-11 Paul Gillet Gmbh Exhaust silencer
EP1338767A1 (en) * 2002-02-21 2003-08-27 Johannes Ulrich Goertz Noise absorption insert made of a shaped element
US20090188747A1 (en) * 2008-01-28 2009-07-30 Benteler Automobiltechnik Gmbh Method of making an exhaust-noise attenuation muffler, and exhaust-noise attenuation muffler

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835336A (en) * 1953-07-15 1958-05-20 Oldberg Mfg Company Silencer or muffler
US3086611A (en) * 1961-04-14 1963-04-23 Oscar E Nelson Engine muffler
FR2483516A1 (en) * 1980-05-29 1981-12-04 Roth Technik Gmbh QUIET
EP0068368A1 (en) * 1981-06-26 1983-01-05 Nissan Motor Co., Ltd. Muffler
FR2547623A1 (en) * 1983-06-15 1984-12-21 Luchaire Ind Echappements DEVICE FOR CONDUCTING A FLUID, PARTICULARLY SILENT
EP0129458A1 (en) * 1983-06-15 1984-12-27 Luchaire S.A. Fluid-conducting device, particularly a silencer
EP0298379A1 (en) * 1987-07-10 1989-01-11 Paul Gillet Gmbh Exhaust silencer
EP1338767A1 (en) * 2002-02-21 2003-08-27 Johannes Ulrich Goertz Noise absorption insert made of a shaped element
US20090188747A1 (en) * 2008-01-28 2009-07-30 Benteler Automobiltechnik Gmbh Method of making an exhaust-noise attenuation muffler, and exhaust-noise attenuation muffler
EP2085581A1 (en) 2008-01-28 2009-08-05 Benteler Automobiltechnik GmbH Method for manufacturing an exhaust gas vibration dampener and exhaust gas vibration dampener
US7926615B2 (en) 2008-01-28 2011-04-19 Benteler Automobiltechnik Gmbh Method of making an exhaust-noise attenuation muffler, and exhaust-noise attenuation muffler

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