US2618353A - Muffler with side branch chambers - Google Patents

Muffler with side branch chambers Download PDF

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Publication number
US2618353A
US2618353A US32956A US3295648A US2618353A US 2618353 A US2618353 A US 2618353A US 32956 A US32956 A US 32956A US 3295648 A US3295648 A US 3295648A US 2618353 A US2618353 A US 2618353A
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US
United States
Prior art keywords
muffler
side branch
tube
branch chambers
passageway
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
US32956A
Inventor
Gale H Hedrick
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.)
MAREMONT AUTOMOTIVE PRODUCTS I
MAREMONT AUTOMOTIVE PRODUCTS Inc
Original Assignee
MAREMONT AUTOMOTIVE PRODUCTS I
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 MAREMONT AUTOMOTIVE PRODUCTS I filed Critical MAREMONT AUTOMOTIVE PRODUCTS I
Priority to US32956A priority Critical patent/US2618353A/en
Application granted granted Critical
Publication of US2618353A publication Critical patent/US2618353A/en
Anticipated expiration legal-status Critical
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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

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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

Nov. 18, 1952 G. H. HEDRICK MUFFLER WTH SIDE BRANCH CHAMBERS F'iled June 14 1948 3 tube Within the casing for the passage of exhaust gases through the n1uier the perforaf...ions of said tube consisting of 10ngitudinauy extending, cir culnferentially Spaced series, each Series facing a dialrletrica1ly opposite in1perforated portion of the tube, and an elongated passageway about the tube said passageway being unrestricted, 9 lurality of spaced restrictors disposed in 9 ortion of said tube within said e10ngated passageway for diverting a portion of the gases into said passageway through Said perforations, said restrictors having o engs the diaTneter of Which are less than tvv0-thirds of the dianleter of said tube, a closed chaInber in the casing, of less length than said passageway and at one end of the casing, Said chan1ber enclosing a portion of the tube, the perforate portion of the tube outside of said 4 chan1ber and within Said casing being of greater 1engh in the longitudina1 direction than said chanlber, Said chamber being 10cated on the out- 1et Side of the mumer GALE H' HEDRICK' EEFEENCES CITED The fonowing references are of record in the 10 ile of this patent:
UNITED STATES PATENTS Number N ane Date 1 87,326 }viason Aug. 30 1932 15 1910,672 Bourne May 23, 1933 2,07,2 Starkweather July 14 1936 2 2 393 IaaS June 3, 191
US32956A 1948-06-14 1948-06-14 Muffler with side branch chambers Expired - Lifetime US2618353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US32956A US2618353A (en) 1948-06-14 1948-06-14 Muffler with side branch chambers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32956A US2618353A (en) 1948-06-14 1948-06-14 Muffler with side branch chambers

Publications (1)

Publication Number Publication Date
US2618353A true US2618353A (en) 1952-11-18

Family

ID=21867783

Family Applications (1)

Application Number Title Priority Date Filing Date
US32956A Expired - Lifetime US2618353A (en) 1948-06-14 1948-06-14 Muffler with side branch chambers

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US (1) US2618353A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500954A (en) * 1969-03-13 1970-03-17 Walker Mfg Co Exhaust silencing system
US3679024A (en) * 1970-09-11 1972-07-25 Stemco Mfg Co Inc Muffler
US4023645A (en) * 1975-02-27 1977-05-17 Donaldson Company, Inc. Method and apparatus for reducing aerodynamic whistle
US4473906A (en) * 1980-12-05 1984-09-25 Lord Corporation Active acoustic attenuator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1874326A (en) * 1929-06-14 1932-08-30 Bell Telephone Labor Inc Sound muffler
US1910672A (en) * 1932-05-13 1933-05-23 Maxim Silencer Co Acoustic wave filter
US2047442A (en) * 1935-08-15 1936-07-14 Buffalo Pressed Steel Company Muffler
US2244393A (en) * 1939-08-31 1941-06-03 Mackenzie Muffier Company Inc Muffler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1874326A (en) * 1929-06-14 1932-08-30 Bell Telephone Labor Inc Sound muffler
US1910672A (en) * 1932-05-13 1933-05-23 Maxim Silencer Co Acoustic wave filter
US2047442A (en) * 1935-08-15 1936-07-14 Buffalo Pressed Steel Company Muffler
US2244393A (en) * 1939-08-31 1941-06-03 Mackenzie Muffier Company Inc Muffler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500954A (en) * 1969-03-13 1970-03-17 Walker Mfg Co Exhaust silencing system
US3679024A (en) * 1970-09-11 1972-07-25 Stemco Mfg Co Inc Muffler
US4023645A (en) * 1975-02-27 1977-05-17 Donaldson Company, Inc. Method and apparatus for reducing aerodynamic whistle
US4473906A (en) * 1980-12-05 1984-09-25 Lord Corporation Active acoustic attenuator

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