US1695375A - Exhaust silencer for internal-combustion or other engines - Google Patents

Exhaust silencer for internal-combustion or other engines Download PDF

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Publication number
US1695375A
US1695375A US135673A US13567326A US1695375A US 1695375 A US1695375 A US 1695375A US 135673 A US135673 A US 135673A US 13567326 A US13567326 A US 13567326A US 1695375 A US1695375 A US 1695375A
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United States
Prior art keywords
gases
sections
exhaust
exhaust silencer
engines
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
US135673A
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English (en)
Inventor
Heather Frederick
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Individual
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Individual
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Publication of US1695375A publication Critical patent/US1695375A/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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • 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
    • 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
    • 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • 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
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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 exhaust 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 exhaust gas passages, pipes or tubes
    • F01N2470/16—Plurality of inlet tubes, e.g. discharging into different 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow

Definitions

  • This invention relates to exhaust silencers more particularly for use with internal combustion engines, which devices, as is well known, receive the exhaust gases and act upon them so as to extract their kinetic energy with a view to minimizing the noise attendant upon their discharge into the atmosphere.
  • the invention has particular relation to silencers of the kind in which the gases are caused to flow in a serpentine or wave-like path during their passage from an inlet to an outlet or point of discharge.
  • a further object of the invention is to so construct an exhaust silencer as to act on the gases passing through the apparatus in an
  • the sections are preferably assembled together in a manner permitting their ready dismantling and it is pointed out that a further advantage flowing from the sectional or unit construction is that a silencer can be built upwith only as many of said units or sections as are necessary effectively to deal with the exhaust gases of a particular enine.
  • the assembled sections may be mounted for rotation together on a longitudinal axis so that the action of the flow of the gases through the apparatus will be to cause rotation of the section, which rotation as will be appreciated may be utilized in any manner desired.
  • a silencer consisting of a series of cups fitting one within another, the outer walls of the cups forming a casing and the solid. ends of the cups forming division plates or walls which were perforated alternately on opposite sidcs'to insure a. zig-zag bafliingpassage.
  • liiguree '7 anti 8 are respectivelysectional ide and end eleyations ot a modified form of or reitthat may he employed;
  • edges of the fully open end may be contained-inn plane inelined to the longi tndinzl axis and extending from one side of the v[ion to within a sh "ance of the opposite side thereof a i own in Figures 7 and S, or they may he run ed a: shown at a ( Figured) while the remaining portion of the said edges may be contained in a central vertical plane.
  • the narrowed (low-1 portion kl ot' the :i-iection or not may be eontaiued i a plane similarly iin-lined in an opposit 't, eetion to the loinritudinal axis and extemling;- to the part where it lnergefi nto the throat, F gure-5 T and 8, the edges of he throat being; contained in a vertical plane sin'ii ar to the remainingport'on ot' the edges ot' the open end above roterred to. so as to he cotern'iiu lw with the latter when two seetions are placed end to end.
  • t t tacilitate proper aaeemhly and i'e:n-1; i1 ⁇ l,1ly oi the end bra 2rd or pieces withthe tubular member g, while a second shoulder :11 is provided for the end piece that is secured tothe exhaust pipe so as to facilitate its proper assembly therewith.
  • the construction described provides a convenient manner of readily assembling and dismantling the apparatus, the device being secured to the exhaust pipe of the motor in any appropriate and well-known manner. It is to be understood, however, that the end pieces may be cast as a whole, if desired.
  • the sections together with the tubular member may be mounted to rotate on the end pieces asshown diagrammatically in Figure 9, in which the tubular member g is mounted for rotation on ball or other suitable bearings mounted in said end pieces.
  • the throats are then arrangedin a helical manner around the axis of the tube as shown in dotted lines.
  • I further contemplate building up a silencer composed of a number of elements each of which consists of a plurality of said sections orunits arranged end to end, and securing said elements together side by side and providing them with a common inlet and outlet so as to divide the gasesinto a plural- 1 ity of streams of serpentine or wave-like form, which discharge. into a common outlet.
  • a silencer composed of a number of elements each of which consists of a plurality of said sections orunits arranged end to end, and securing said elements together side by side and providing them with a common inlet and outlet so as to divide the gasesinto a plural- 1 ity of streams of serpentine or wave-like form, which discharge. into a common outlet.
  • This form of the invention is shown in Fig ures 2 and 3 in which two elements are provided, each of which consists of a tubular element within which are arranged a plurality of sections or units in the mannerdescribed above.
  • the elements may be arranged as shown in Figure 3 so that the length of the path for the gases in the individual elements difiers slightl as, for example, by varying the numher 0 sections or units in each element, whereby the streams of ases are not synchronized so that the final exit from the individual elements takes lace in cyclic order instead of simultaneous y, thereby produc-, ing a constant or even flow of the gases through the common outlet.
  • This arrangement reduces the pulsation of the discharge of the gases considerably and renders such discharge almost noiseless.
  • the individual sections or units may be formed from short lengths of tubing of appropriate gauge which are cut and pressed to the shape above referred to but it is to be understood that they may be made in any other convenient manner as by castin or stamping from sheet metal and bending t cm into the desired shape or in any other appropriate manner.
  • An exhaust silencer comprising a plurality of similar hollow sections arranged in end to end abutting relation and assembled in such relation in a tubular member adapted to fit the exterior of the sections, the interior of the latter being such that an undivided path is provided of wave-like form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
US135673A 1925-10-03 1926-09-15 Exhaust silencer for internal-combustion or other engines Expired - Lifetime US1695375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24700/25A GB263558A (en) 1925-10-03 1925-10-03 Improvements in exhaust silencers for internal combustion or other engines

Publications (1)

Publication Number Publication Date
US1695375A true US1695375A (en) 1928-12-18

Family

ID=10215874

Family Applications (1)

Application Number Title Priority Date Filing Date
US135673A Expired - Lifetime US1695375A (en) 1925-10-03 1926-09-15 Exhaust silencer for internal-combustion or other engines

Country Status (5)

Country Link
US (1) US1695375A (enrdf_load_stackoverflow)
BE (1) BE336695A (enrdf_load_stackoverflow)
DE (1) DE475509C (enrdf_load_stackoverflow)
FR (1) FR622372A (enrdf_load_stackoverflow)
GB (1) GB263558A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860722A (en) * 1954-08-23 1958-11-18 Gen Motors Corp Silencer
US3135350A (en) * 1961-01-06 1964-06-02 Eugene A Mattie Muffler for internal combustion motors
US3159239A (en) * 1962-05-11 1964-12-01 Walker Mfg Co Muffler
US3208552A (en) * 1964-02-07 1965-09-28 Seifert Kurt Device for cooling and muffling hot gas jets
US3274678A (en) * 1962-05-11 1966-09-27 Walker Mfg Co Method of making a muffler
US4027740A (en) * 1975-02-10 1977-06-07 Martin James F Multi-chamber muffler
US20110180347A1 (en) * 2010-01-22 2011-07-28 Butler Boyd L Spin muffler
US20110225960A1 (en) * 2010-03-22 2011-09-22 Denso Corporation Secondary air control valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253519B (de) * 1957-05-27 1967-11-02 Industrial Acoustics Co Schalldaempfer fuer den Bodenbetrieb von Strahltriebwerken
DE3807948A1 (de) * 1988-03-10 1989-09-28 Eberspaecher J Schalldaempfer fuer fahrzeugmotore

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860722A (en) * 1954-08-23 1958-11-18 Gen Motors Corp Silencer
US3135350A (en) * 1961-01-06 1964-06-02 Eugene A Mattie Muffler for internal combustion motors
US3159239A (en) * 1962-05-11 1964-12-01 Walker Mfg Co Muffler
US3274678A (en) * 1962-05-11 1966-09-27 Walker Mfg Co Method of making a muffler
US3208552A (en) * 1964-02-07 1965-09-28 Seifert Kurt Device for cooling and muffling hot gas jets
US4027740A (en) * 1975-02-10 1977-06-07 Martin James F Multi-chamber muffler
US20110180347A1 (en) * 2010-01-22 2011-07-28 Butler Boyd L Spin muffler
US8104572B2 (en) * 2010-01-22 2012-01-31 Butler Boyd L Spin muffler
US20110225960A1 (en) * 2010-03-22 2011-09-22 Denso Corporation Secondary air control valve

Also Published As

Publication number Publication date
FR622372A (fr) 1927-05-28
DE475509C (de) 1929-04-29
BE336695A (enrdf_load_stackoverflow)
GB263558A (en) 1927-01-03

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