US2561557A - Muffler with plural passages and side branch chambers - Google Patents
Muffler with plural passages and side branch chambers Download PDFInfo
- Publication number
- US2561557A US2561557A US115686A US11568649A US2561557A US 2561557 A US2561557 A US 2561557A US 115686 A US115686 A US 115686A US 11568649 A US11568649 A US 11568649A US 2561557 A US2561557 A US 2561557A
- Authority
- US
- United States
- Prior art keywords
- chambers
- muffler
- discharge
- inlet
- side branch
- 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
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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
-
- 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
-
- 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 ; 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
- 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
- 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
Definitions
- invention relates toa muflier with plural to provide a'muiller of but few parts and these ofsimple construction, and readily assembledftof gether.
- mufilers. have strained, as. it .We're, the explosively discharged gases from anengine.
- Another chief object of the vpresent invention is to eliminate the straining action and utilize a cushioning action inherent in the muffler of this invention.
- One chief feature of they invention resides in constructing the muffler so that the discharge thereto'can readily expand'and when expanded be cushioned such that the cushioned gaseous discharge will be discharged-from the mufiler in a more efiicient manner,.the cushioning action, asdistinguished from a straining. action, resul tingfin a lowering of the back pressure on the engine thereby increasing its eiliciency
- Theother chief feature ofthe' invention resides in providing an elongated housing closedat opposite ends except for the inlet and outlet and including therein an insert of diversion and division type arranged to form cushioning chambers downstream of the gaseous division.
- Fig. 1 is a side elevation of an elliptical embodiment of the invention, parts being broken out.
- Fig. 2 is a similar view thereof, taken at right angles, parts being broken away to show same and the other parts in section.
- Fig. 3 is an end elevation of the intake end of the muserverr.
- N indicates a tail pipe to which the mufiler discharges, the muffler having discharge I2 suitably connected thereto.
- the mufller comprises an elongated elliptical cross-sectioned body l3 closed at opposite ends by caps or closures I4 and I5 and connected thereto in any suitable manner such as illustrated, for example.
- Intake I0 is suitably carried by cap, closure or end I while discharge [2 is suitably carried r so imjsy (cum- 4s) 2 by the other cap, closure or end l5.
- the intake and discharge project inwardly from the ends and towards each other and may be aligned as shown.”
- b'ody' I3 is the division structure which near' theinlet end is of diversion type. Same com prises two elements having adjacent mid-portions l6 suitably secured together as by spot welding H or the like. The width of same may be appreciable as illustrated, see Fig. 3, or negligible.
- chambers 22 are sealed ofi from the inlet In by partitions 23.
- partitions 23 Thus only chambers 2
- Each of the wall portions I8 for one quarter to one third the length thereof from the discharge end thereof is slotted as at 24.
- discharge l2 terminates immediatel adjacent the ends of portions Iii-l8, the portions l8 constitute a division or divided entrance thereto, said discharge
- communicates with the adjacent chamber 22 only at the rear quarter or third thereof through slots 24, which may be louvred or directionally louvred as and when deemed desirable, same being omitted herefrom for clearness.
- the resulting chambers 22 are cushioning chambers for the absorption or accommodation of the high pressure or peak pressures in the exhaust stream.
- said chambers relieve the excessive peak pressure so that the discharge at 25
- the device therefore, serves as an exhaust silencer.
- the high pressure exhaust expands upon entering the muffler and such expanded gas is divided approximately into half upon entering each of chambers 2
- the cushioning action and relatively free discharge to the tail pipe so the exhaust is substantially silent, all without the customary back pressure creation and resulting decrease in engine efliciency.
- the invention claimed is: 1, A muloppyr having an elongated body with a plurality of chambers substantially coextensive therewith and closed ends with substantially '30 equal area inlet and discharge means, the chambers freely communicating one with the other at the discharge ends and certain of the chambers freely communicating with the inlet means at the inlet end, the remainder "of said chambers at :25
- the inlet end being sealed from the inlet means to form cushioning means, the two groups of chambers having restricted communication near the discharge ends thereof, each group of cham-- bers including a pair thereof, the chambers of 40 2 ,4
- each such pair being separated by a chamber of the other pair.
- a muffler having an elongated body with a plurality of chambers substantially coextensive 4 therewith and closed ends with substantially equal area inlet and discharge means, the chambers freely communicating one with the other at the discharge end and certain of the chambers freely communicating with the inlet means at the inlet end, the remainder of said chambers at the inlet end being sealed from the inlet means to form cushioning means, the two groups of chambers having restricted communication near the discharge ends thereof, and the several chambers in the body being formed by substantially X-arranged partitions, each partition being common to a pair of adjacent chambers.
- a muiller including an elongated, elliptical sectioned body with intake and exhaust at opposite ends, X-arranged partitions therein substantially coextensive with the major length thereof, and bailie and diversion means at the inlet end closing two opposite resulting chambers at that end and diverting inlet gases to the other chambers and dividing the gases ubstantially equally therebetween.
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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
July 24, 1951 w BlDDLEcCMBE 2,561,557
MUFFLER WITH PLURAL PASSAGES AND SIDE BRANCH CHAMBERS Filed Sept. 14, 1949 INVENTOR. nmrar A .Z/DOLCW6E Patented July 24, 5951 MUFFLER WITH rLURALi PAssAGEs' AND 7 SIDE BRANCH CHAMBERS I Walter 'L.'Biddlecombe, Indianapolis, Ind. Application September 14, 1949, Serial No. 115,686
invention relates toa muflier with plural to provide a'muiller of but few parts and these ofsimple construction, and readily assembledftof gether.
. l Heretofore mufilers. have strained, as. it .We're, the explosively discharged gases from anengine.
Another chief object of the vpresent invention is to eliminate the straining action and utilize a cushioning action inherent in the muffler of this invention.
One chief feature of they invention resides in constructing the muffler so that the discharge thereto'can readily expand'and when expanded be cushioned such that the cushioned gaseous discharge will be discharged-from the mufiler in a more efiicient manner,.the cushioning action, asdistinguished from a straining. action, resul tingfin a lowering of the back pressure on the engine thereby increasing its eiliciency, Theother chief feature ofthe' invention resides in providing an elongated housing closedat opposite ends except for the inlet and outlet and including therein an insert of diversion and division type arranged to form cushioning chambers downstream of the gaseous division.
Other objects and features of the invention will be set forth more fully hereinafter.
The full nature of the invention will be understood from the accompanying drawings and the following description and claims:
In the drawings Fig. 1 is a side elevation of an elliptical embodiment of the invention, parts being broken out.
Fig. 2 is a similar view thereof, taken at right angles, parts being broken away to show same and the other parts in section.
Fig. 3 is an end elevation of the intake end of the muiiler.
In the drawings It indicates the inlet to the muffler and adapted for suitable connection to the engine discharge, not shown. N indicates a tail pipe to which the mufiler discharges, the muffler having discharge I2 suitably connected thereto.
The mufller comprises an elongated elliptical cross-sectioned body l3 closed at opposite ends by caps or closures I4 and I5 and connected thereto in any suitable manner such as illustrated, for example.
Intake I0 is suitably carried by cap, closure or end I while discharge [2 is suitably carried r so imjsy (cum- 4s) 2 by the other cap, closure or end l5. The intake and discharge, project inwardly from the ends and towards each other and may be aligned as shown."
coextensive with the major length of the muffler, b'ody' I3 is the division structure which near' theinlet end is of diversion type. Same com prises two elements having adjacent mid-portions l6 suitably secured together as by spot welding H or the like. The width of same may be appreciable as illustrated, see Fig. 3, or negligible.
Extending outwardly and angularly and divergingly from each are the portions l8, each of which terminates in a curved portion I9. These two portions may lap or otherwise be'secured together as at 20. The result is four parallelvpassages substantially occupying the entire crosssectional area of the housing l3. These chame bers are designated by numerals 2| and 22. i
The forward ends of chambers 22 are sealed ofi from the inlet In by partitions 23. Thus only chambers 2| freely communicate with the inlet endjoff the ho'u'sing' |'3. Members.|6, I8 and |9 on themajorportionof the insert unit terminate in spaced relation to the rear end I5 of the mufller.
Each of the wall portions I8 for one quarter to one third the length thereof from the discharge end thereof is slotted as at 24. Hence, since discharge l2 terminates immediatel adjacent the ends of portions Iii-l8, the portions l8 constitute a division or divided entrance thereto, said discharge |2 as at 25 being in free communication with all four chambers 2| and 22. Each chamber 2| communicates with the adjacent chamber 22 only at the rear quarter or third thereof through slots 24, which may be louvred or directionally louvred as and when deemed desirable, same being omitted herefrom for clearness.
Accordingly, the resulting chambers 22 are cushioning chambers for the absorption or accommodation of the high pressure or peak pressures in the exhaust stream. In other words, said chambers relieve the excessive peak pressure so that the discharge at 25|2 is substantially at a uniform pressure which, however, varies depending upon the engine speed variation. The device, therefore, serves as an exhaust silencer.
In operation the high pressure exhaust expands upon entering the muffler and such expanded gas is divided approximately into half upon entering each of chambers 2|, where it is permitted to the tail pipe until the pressures rise in the discharge system. However, in so doing there is always present the cushioning action and relatively free discharge to the tail pipe so the exhaust is substantially silent, all without the customary back pressure creation and resulting decrease in engine efliciency.
While the invention has been illustrated and described in great detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in charactel. The several modifications described herein, as well as others Which will readily suggest themselves to persons skilled in this art, all are considered to be within the broad scope of the invention, reference being had to the appended claims.
The invention claimed is: 1, A muiiler having an elongated body with a plurality of chambers substantially coextensive therewith and closed ends with substantially '30 equal area inlet and discharge means, the chambers freely communicating one with the other at the discharge ends and certain of the chambers freely communicating with the inlet means at the inlet end, the remainder "of said chambers at :25
the inlet end being sealed from the inlet means to form cushioning means, the two groups of chambers having restricted communication near the discharge ends thereof, each group of cham-- bers including a pair thereof, the chambers of 40 2 ,4
each such pair being separated by a chamber of the other pair.
, 2. A muffler having an elongated body with a plurality of chambers substantially coextensive 4 therewith and closed ends with substantially equal area inlet and discharge means, the chambers freely communicating one with the other at the discharge end and certain of the chambers freely communicating with the inlet means at the inlet end, the remainder of said chambers at the inlet end being sealed from the inlet means to form cushioning means, the two groups of chambers having restricted communication near the discharge ends thereof, and the several chambers in the body being formed by substantially X-arranged partitions, each partition being common to a pair of adjacent chambers.
3. A muiller including an elongated, elliptical sectioned body with intake and exhaust at opposite ends, X-arranged partitions therein substantially coextensive with the major length thereof, and bailie and diversion means at the inlet end closing two opposite resulting chambers at that end and diverting inlet gases to the other chambers and dividing the gases ubstantially equally therebetween.
4. A muiller as defined by claim 3 wherein all chambers "have restricted communication at the discharge end thereof and for an appreciable length of said chambers but less than half the length of the same.
5. A muiiler as defined by claim 3 wherein all chambers at the discharge end "have free com munication with'the muiiler exhaust.
The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date Peik Nov. 3, 1986 2,075,263 Bourne Mar. 30, 193! 2,103,810 Casper Dec. 28, 1937 2,274,480 Raven Feb. 24, 1942
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US115686A US2561557A (en) | 1949-09-14 | 1949-09-14 | Muffler with plural passages and side branch chambers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US115686A US2561557A (en) | 1949-09-14 | 1949-09-14 | Muffler with plural passages and side branch chambers |
Publications (1)
Publication Number | Publication Date |
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US2561557A true US2561557A (en) | 1951-07-24 |
Family
ID=22362853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US115686A Expired - Lifetime US2561557A (en) | 1949-09-14 | 1949-09-14 | Muffler with plural passages and side branch chambers |
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Country | Link |
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US (1) | US2561557A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478842A (en) * | 1967-12-29 | 1969-11-18 | Eugene A Mattie | Muffler having two parallel bores with slotted baffles |
US20100199651A1 (en) * | 2009-02-09 | 2010-08-12 | Callahan Joseph E | Tube structure for exhaust component |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2059487A (en) * | 1932-10-31 | 1936-11-03 | Halsey W Taylor Company | Muffler |
US2075263A (en) * | 1931-10-19 | 1937-03-30 | Maxim Silencer Co | Sound attenuating device |
US2103810A (en) * | 1935-04-16 | 1937-12-28 | Caspar Eduard | Silencer for the exhaust gases of internal combustion engines |
US2274460A (en) * | 1937-10-14 | 1942-02-24 | Carl F Rauen | Muffler |
-
1949
- 1949-09-14 US US115686A patent/US2561557A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2075263A (en) * | 1931-10-19 | 1937-03-30 | Maxim Silencer Co | Sound attenuating device |
US2059487A (en) * | 1932-10-31 | 1936-11-03 | Halsey W Taylor Company | Muffler |
US2103810A (en) * | 1935-04-16 | 1937-12-28 | Caspar Eduard | Silencer for the exhaust gases of internal combustion engines |
US2274460A (en) * | 1937-10-14 | 1942-02-24 | Carl F Rauen | Muffler |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478842A (en) * | 1967-12-29 | 1969-11-18 | Eugene A Mattie | Muffler having two parallel bores with slotted baffles |
US20100199651A1 (en) * | 2009-02-09 | 2010-08-12 | Callahan Joseph E | Tube structure for exhaust component |
US8025121B2 (en) * | 2009-02-09 | 2011-09-27 | Emcon Technologies Llc | Tube structure for exhaust component |
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