US3794139A - Muffler with plural inlets and outlets - Google Patents

Muffler with plural inlets and outlets Download PDF

Info

Publication number
US3794139A
US3794139A US00320506A US3794139DA US3794139A US 3794139 A US3794139 A US 3794139A US 00320506 A US00320506 A US 00320506A US 3794139D A US3794139D A US 3794139DA US 3794139 A US3794139 A US 3794139A
Authority
US
United States
Prior art keywords
chamber
tubes
outlet tube
muffler
patches
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 - Lifetime
Application number
US00320506A
Other languages
English (en)
Inventor
T Hetherington
L Strunk
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.)
Tenneco Inc
Original Assignee
Tenneco Inc
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 Tenneco Inc filed Critical Tenneco Inc
Application granted granted Critical
Publication of US3794139A publication Critical patent/US3794139A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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

Definitions

  • the muffler of the invention has four inlets and allows simply designated pipes to be used to connect the cylinder exhaust ports to the muffler.
  • the muffler has two outlets.
  • FIG. 1 is a longitudinal cross section through a muffler embodying the invention as taken on line 11 of FIG. 2;
  • FIG. 2 is an enlarged end view taken from the left of FIG. 1;
  • FIG. 3 is a section along the line 3-3 of FIG. 2;
  • FIG. 4 is a diagram of an exhaust system using a muffler according to the invention.
  • the muffler 1 comprises a tubular shell 3 that is closed at opposite ends by headers 5 and 7 which are secured to ends of the shell in interlocked, gas-tight joints 9.
  • the space enclosed by the shell and headers comprises a chamber 11.
  • Each header has three outwardly extending necks l3, l5, and I7, the respective necks or headers 5 and 7 being aligned on straight lines parallel to the longitudinal axis of the shell 3.
  • Three straight tubes 19, 21, and 23 extend between and through and are supported in the pairs of necks I3, 15, and 17, respectively, preferably being spotwelded as indicated by the xs.”
  • the tubes are preferably arranged in the manner shown in FIG. 2.
  • the tubes 19 and 21 comprise inlet tubes and have their outer ends enlarged and slotted whereby they form four inlet bushings, as seen at 25, to receive and be clamped to four inlet pipes carrying gas from an engine.
  • Each inlet pipe has an imperforate partition 27 spotwelded in it to subdivide the pipe into two substantially equal inlet sections 29 and 31.
  • the sections 29 Adjacent the partition 27 the sections 29 each has a patch of perforations 33 and the sections 31 each has a patch of perforations 35.
  • the patch of perforations 33 is preferably slightly longer than the patch of perforations 35 and therefore of slightly greater area.
  • the perforations in tubes 19 and 21 discharge gas into chamber 11.
  • the tube 23 forms an outlet tube and receives gas through two substantially identical patches of perforations 37 located adjacentto but inwardly spaced from the headers 5 and 7 by a distance that is preferably a little greater than the length of each patch.
  • the length (and area) of the patches of perforations 37 is preferably a little less than half that of the patches of perforations 33 and 35.
  • the outlet tube patches are out of radial alignment with the inlet tube patches.
  • the ends of the outlet tube 23 may be connected to tailpipe sections 39 (FIG. 4) to conduct gas to atmosphere.
  • each of the four inlet bushings 25 will normally be connected by exhaust pipes 41 to different cylinders of an engine 43.
  • the exhaust gas will pass through the perforation patches with some silencing and enter the large chamber 11 where a major amount of acoustic energy is lost, there being a further attenuating effect as the gas passes through perforations 37 to enter the outlet tube 11.
  • the invention provides a simple muffler construction that is especially suitable for use in the exhaust systems of small automobiles having four cylinder engines as illustrated in FIG. 4.
  • a muffler comprising an outer tubular shell, headers closing opposite ends of the shell and acting with the shell to define a chamber, each header having three openings, three open-ended tubes extending longitudinally through the chamber and mounted at opposite ends in the openings in said headers, two of said tubes comprising inlet tubes and the third tube comprising an outlet tube, each of said tubes opening into said chamber, means forming partitions in said inlet tubes at a mid portion thereof to prevent gas flow from one end of the tube to the other, said inlet tubes providingfour inlets for gas to enter the chamber and said outlet tube providing two outlets for gas to leave the chamber, said chamber being open so that gas can flow therein from the inlet tubes to the outlet tube.
  • each of said tubes has patches of perforations opening into said chamber.
  • a muffler comprising an elongated outer tubular shell closed at opposite ends and defining an internal chamber, three open-ended tubes extending longitudinally through the chamber and supported at opposite ends by said shell, two of said tubes comprising inlet tubes and the third tube comprising an outlet tube, each of said tubes having openings adjacent its mid portion into said chamber and at one end outside of the chamber, means forming partitions in said inlet tubes at said mid portions thereof to prevent gas flow from one end of the tube to the other, said inlet tubes providing four inlets for gas to enter the chamber and said outlet tube providing two outlets for gas to leave the chamber, said chamber being open so that gas can flow therein from the inlet tubes to the outlet tube.
  • outlet tube has two patches of perforations each of which is located adjacent to but spaced inwardly respectively from opposite ends of the shell, the major part of the length of the outlet tube being imperforate, said inlet tubes having patches of perforations located on opposite sides of said partition means and out of transverse alignment with said outlet tube patches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
US00320506A 1973-01-02 1973-01-02 Muffler with plural inlets and outlets Expired - Lifetime US3794139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32050673A 1973-01-02 1973-01-02

Publications (1)

Publication Number Publication Date
US3794139A true US3794139A (en) 1974-02-26

Family

ID=23246739

Family Applications (1)

Application Number Title Priority Date Filing Date
US00320506A Expired - Lifetime US3794139A (en) 1973-01-02 1973-01-02 Muffler with plural inlets and outlets

Country Status (14)

Country Link
US (1) US3794139A (es)
JP (1) JPS5219257B2 (es)
AR (1) AR197638A1 (es)
BE (1) BE807340A (es)
BR (1) BR7309598D0 (es)
CA (1) CA1000574A (es)
DE (1) DE2356591A1 (es)
DK (1) DK134526B (es)
ES (1) ES420781A1 (es)
FR (1) FR2212855A5 (es)
GB (1) GB1438699A (es)
IT (1) IT1001717B (es)
NL (1) NL7316161A (es)
ZA (1) ZA738524B (es)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359865A (en) * 1979-08-31 1982-11-23 Yamaha Hatsudoki Kabushiki Kaisha Exhaust system for multicylinder motorbike engine
US4475264A (en) * 1983-05-23 1984-10-09 Parise And Sons, Inc. Dual inlet muffler assembly for truck hot water vacuum extraction machine
US5712455A (en) * 1994-06-06 1998-01-27 Wagner; Dane Dual entry plug muffler
US6530452B1 (en) * 1998-09-30 2003-03-11 Metso Paper, Inc. Reactive silencer for industrial air channels and its use
US6796402B1 (en) * 2003-04-17 2004-09-28 Dane Wagner Muffler having isolated dual flow baffle structure
US20070029133A1 (en) * 2003-07-12 2007-02-08 Marcus Hofmann Device for modulating noise in a motor vehicle
US20070045041A1 (en) * 2005-02-11 2007-03-01 Jan Krueger Muffler for an exhaust system
US20070284186A1 (en) * 2006-06-09 2007-12-13 Arvin Technologies, Inc. Exhaust system
US20090229913A1 (en) * 2008-02-08 2009-09-17 Waldron's Antique Exhaust Dual Mode Exhaust Muffler
US8191676B2 (en) * 2010-11-04 2012-06-05 Ford Global Technologies, Llc Resonator for a dual-flow exhaust system
CN102639826A (zh) * 2009-10-20 2012-08-15 佛吉亚排放控制技术德国有限公司 排气消声器
US20130153329A1 (en) * 2011-12-20 2013-06-20 Catalytic Combustion Corporation Quiet muffler
US8684131B1 (en) * 2012-12-12 2014-04-01 Kia Motors Corporation Dual muffler
US20150053501A1 (en) * 2013-08-20 2015-02-26 Tenneco Automotive Operating Company Inc. Tailor to Fit Muffler
US10975743B1 (en) 2020-03-13 2021-04-13 Tenneco Automotive Operating Company Inc. Vehicle exhaust component
US11199116B2 (en) 2017-12-13 2021-12-14 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11268430B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with welded edges
US11268429B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with inwardly turned edges
US11365658B2 (en) 2017-10-05 2022-06-21 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11702969B2 (en) 2017-10-05 2023-07-18 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165595U (es) * 1981-04-13 1982-10-19
JPS58218487A (ja) * 1982-06-10 1983-12-19 ヤマハ発動機株式会社 荒地走行用自動三輪車
JPS59166151U (ja) * 1983-04-23 1984-11-07 堀田　勉 ゴムボ−ル反発力測定器
JPS6053611A (ja) * 1983-08-31 1985-03-27 Nissan Motor Co Ltd 排気管の接続構造

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE506100A (es) *
US2940249A (en) * 1955-10-25 1960-06-14 Volkswagenwerk Ag Exhaust head for internal combustion engines
US3495680A (en) * 1969-03-13 1970-02-17 Walker Mfg Co Exhaust silencing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE506100A (es) *
US2940249A (en) * 1955-10-25 1960-06-14 Volkswagenwerk Ag Exhaust head for internal combustion engines
US3495680A (en) * 1969-03-13 1970-02-17 Walker Mfg Co Exhaust silencing system

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359865A (en) * 1979-08-31 1982-11-23 Yamaha Hatsudoki Kabushiki Kaisha Exhaust system for multicylinder motorbike engine
US4475264A (en) * 1983-05-23 1984-10-09 Parise And Sons, Inc. Dual inlet muffler assembly for truck hot water vacuum extraction machine
US5712455A (en) * 1994-06-06 1998-01-27 Wagner; Dane Dual entry plug muffler
US6530452B1 (en) * 1998-09-30 2003-03-11 Metso Paper, Inc. Reactive silencer for industrial air channels and its use
US6796402B1 (en) * 2003-04-17 2004-09-28 Dane Wagner Muffler having isolated dual flow baffle structure
US20070029133A1 (en) * 2003-07-12 2007-02-08 Marcus Hofmann Device for modulating noise in a motor vehicle
US7377359B2 (en) * 2003-07-12 2008-05-27 Daimler Ag Device for modulating noise in a motor vehicle
US20070045041A1 (en) * 2005-02-11 2007-03-01 Jan Krueger Muffler for an exhaust system
US20070284186A1 (en) * 2006-06-09 2007-12-13 Arvin Technologies, Inc. Exhaust system
US7650965B2 (en) 2006-06-09 2010-01-26 Emcon Technologies Llc Exhaust system
US20090229913A1 (en) * 2008-02-08 2009-09-17 Waldron's Antique Exhaust Dual Mode Exhaust Muffler
CN102639826A (zh) * 2009-10-20 2012-08-15 佛吉亚排放控制技术德国有限公司 排气消声器
US8191676B2 (en) * 2010-11-04 2012-06-05 Ford Global Technologies, Llc Resonator for a dual-flow exhaust system
US20130153329A1 (en) * 2011-12-20 2013-06-20 Catalytic Combustion Corporation Quiet muffler
US8678132B2 (en) * 2011-12-20 2014-03-25 Catalytic Combustion Corporation Quiet muffler
US8684131B1 (en) * 2012-12-12 2014-04-01 Kia Motors Corporation Dual muffler
US9689301B2 (en) 2013-08-20 2017-06-27 Tenneco Automotive Operating Company Inc. Tailor to fit muffler
US9121320B2 (en) * 2013-08-20 2015-09-01 Tenneco Automotive Operating Company Inc. Tailor to fit muffler
US20150053501A1 (en) * 2013-08-20 2015-02-26 Tenneco Automotive Operating Company Inc. Tailor to Fit Muffler
US11365658B2 (en) 2017-10-05 2022-06-21 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11702969B2 (en) 2017-10-05 2023-07-18 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11199116B2 (en) 2017-12-13 2021-12-14 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11268430B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with welded edges
US11268429B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with inwardly turned edges
US10975743B1 (en) 2020-03-13 2021-04-13 Tenneco Automotive Operating Company Inc. Vehicle exhaust component

Also Published As

Publication number Publication date
FR2212855A5 (es) 1974-07-26
DE2356591A1 (de) 1974-07-04
JPS5219257B2 (es) 1977-05-26
JPS506932A (es) 1975-01-24
DK134526B (da) 1976-11-22
ZA738524B (en) 1974-09-25
GB1438699A (en) 1976-06-09
BR7309598D0 (pt) 1974-08-29
DK134526C (es) 1977-04-25
AU6226573A (en) 1975-05-08
BE807340A (fr) 1974-03-01
AR197638A1 (es) 1974-04-23
NL7316161A (es) 1974-07-04
IT1001717B (it) 1976-04-30
CA1000574A (en) 1976-11-30
ES420781A1 (es) 1976-07-16

Similar Documents

Publication Publication Date Title
US3794139A (en) Muffler with plural inlets and outlets
US4064962A (en) Muffler method and apparatus
US3388769A (en) Dual inlet and outlet muffler
US5519994A (en) Muffler with inlet pipe equalizer
US4203503A (en) Exhaust silencer for a railway locomotive
US3434565A (en) Silencer with angled tuning tube leading to helmholtz resonator
US3927731A (en) Muffler with spiral duct and double inlets
US2520756A (en) Exhaust silencer for internalcombustion engines
US2573474A (en) Muffler containing inner and outer end walls and longitudinal chambers
US3741336A (en) Expansion type silencer
US3072214A (en) Gas blending and sound-attenuating system and apparatus
GB748053A (en) Improvements in or relating to exhaust silencers for internal combustion engines
US4172508A (en) Exhaust silencers
US3583524A (en) Muffler with external tuning tube connecting internal chamber to exhaust conduit
US3361227A (en) Mufflers and exhaust systems
US7942235B2 (en) Exhaust system for an internal combustion engine
US3512607A (en) Co-axial tuning tubes for muffler
US3841435A (en) Swaged tri-flow muffler
US3685616A (en) Five pass muffler
US3887032A (en) Mufflers
US3557905A (en) Tuning tube
US3070187A (en) Sound-attenuating system and apparatus for gas streams
US3388768A (en) Muffler with dual inlets and dual outlets
US3643760A (en) Offcenter pinch can for muffler
GB2161215A (en) Exhaust systems for internal combustion engines