US1797310A - Alfbed j - Google Patents
Alfbed j Download PDFInfo
- Publication number
- US1797310A US1797310A US1797310DA US1797310A US 1797310 A US1797310 A US 1797310A US 1797310D A US1797310D A US 1797310DA US 1797310 A US1797310 A US 1797310A
- Authority
- US
- United States
- Prior art keywords
- casing
- core
- parts
- muffler
- inlet
- 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
Links
- 239000007789 gas Substances 0.000 description 10
- 230000000875 corresponding Effects 0.000 description 2
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
- 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
- F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
Definitions
- the wall parts are preferably spaced apart to permit lateral expansion of the gases between the parts.
- Fig. 1 is a longitudinal section of a muffler casing showing the core in side elevation therein;
- Fig. 2 a cross section on the line 22 in Fig. 1.
- the muffler comprises a casing 1 having ends 2 in which inlet and outlet openings 3 and 4 are formed. End plates 5 formed on or carried by the ends 2 are spaced from the inner ends of the inlet and outlet 3 and 4 and are provided with openings 6. These openings are located adjacent the inner peripheries of the ends 2 so that the end plates serve as battles.
- a core 7 having a helical wall formed in parts 7, 7 and 7 is provided with axially 4O directed projections 7 adapted to be passed through holes 5 in the plates 5. Nuts 8 threaded on the projections hold the ends 2, core 7 and casing 1 together.
- a lining 10 is interposed between the casing and the periphery of the helical wall.
- the helix of the part 7" of the wall is inclined to the axis of the core in a direction opposite to that of the adjacent parts 7*, 7.
- the exhaust gases entering the mufller through the inlet 3 are deflected by the ad- Serial No. 363,636.
- jacent baffle plate 5 through the openings 6 and then travel through the alternated right and left hand passages formed between the parts of the helical wall and the casing.
- Each part has a plurality of helices to form a plurality of passages.
- the parts 7, 7 and 7 are spaced'apart to form expansion chambers 7 and 7 to permitlateral expansion of the gases before their direction of rotation is alternated. from the interior of the casing through the openings 6 in the battle plate 5 adjacent the outlet at and thence through the latter which is preferably the same diameter as that of the inlet 3.
- a muffler including a cylindrical casing having inlet and outlet ends; and an imperforate core arranged longitudinally of the casing and having a helical wall formed in sections, the helix of each section being inclined to the axis of the core in a direct-ion opposite to that of the helix of the adjacent section to form a series of alternated right and left hand passages between the core and casing, the said wall sections being spaced apart on the core to form unobstructed expension chambers between the latter and the casing.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
March 24, 1931/ A. J. F. WRIGHT 1,797,310
MUFFLER Filed May 16, 1929 H Jnven/or Patented Mar. 24, 1931 UNITED STATES ALFRED J. F. WRIGHT, OI TORONTO, ONTARIO, CANADA MUFFLER Application filed May 16, 1929.
to the axis of the core in a direction opposite to that of the helix of the adjacent part whereby the direction of movement of the exhaust gases through the passages, formed by the helical wall parts and the muffler casing,
15 is alternated. The wall parts are preferably spaced apart to permit lateral expansion of the gases between the parts.
The constructions are hereinafter more fully described and are illustrated in the accompanying drawings in which Fig. 1 is a longitudinal section of a muffler casing showing the core in side elevation therein; and
Fig. 2 a cross section on the line 22 in Fig. 1.
In the drawings like numerals of reference indicate corresponding parts in the different figures.
The muffler comprises a casing 1 having ends 2 in which inlet and outlet openings 3 and 4 are formed. End plates 5 formed on or carried by the ends 2 are spaced from the inner ends of the inlet and outlet 3 and 4 and are provided with openings 6. These openings are located adjacent the inner peripheries of the ends 2 so that the end plates serve as battles.
A core 7 having a helical wall formed in parts 7, 7 and 7 is provided with axially 4O directed projections 7 adapted to be passed through holes 5 in the plates 5. Nuts 8 threaded on the projections hold the ends 2, core 7 and casing 1 together. Preferably a lining 10 is interposed between the casing and the periphery of the helical wall.
The helix of the part 7" of the wall is inclined to the axis of the core in a direction opposite to that of the adjacent parts 7*, 7. The exhaust gases entering the mufller through the inlet 3 are deflected by the ad- Serial No. 363,636.
jacent baffle plate 5 through the openings 6 and then travel through the alternated right and left hand passages formed between the parts of the helical wall and the casing.
Each part has a plurality of helices to form a plurality of passages. Preferably the parts 7, 7 and 7 are spaced'apart to form expansion chambers 7 and 7 to permitlateral expansion of the gases before their direction of rotation is alternated. from the interior of the casing through the openings 6 in the battle plate 5 adjacent the outlet at and thence through the latter which is preferably the same diameter as that of the inlet 3.
hat I claim is:
A muffler including a cylindrical casing having inlet and outlet ends; and an imperforate core arranged longitudinally of the casing and having a helical wall formed in sections, the helix of each section being inclined to the axis of the core in a direct-ion opposite to that of the helix of the adjacent section to form a series of alternated right and left hand passages between the core and casing, the said wall sections being spaced apart on the core to form unobstructed expension chambers between the latter and the casing.
Signed at Toronto, Canada, this 29th day of April, 1929.
ALFRED J. F. \VRIGHT.
The gases pass Cir
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1797310A true US1797310A (en) | 1931-03-24 |
Family
ID=3421451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1797310D Expired - Lifetime US1797310A (en) | Alfbed j |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1797310A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132717A (en) * | 1955-05-27 | 1964-05-12 | Bolt Beranek & Newman | Acoustically absorbent conduit |
| US3500955A (en) * | 1968-01-24 | 1970-03-17 | Sionics Inc | Firearms silencer with helical suppressor elements |
| US3966443A (en) * | 1973-04-18 | 1976-06-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Exhaust gas purifier for internal combustion engine |
| US4683978A (en) * | 1984-11-22 | 1987-08-04 | Tula Silencers (Propriety) Limited | Exhaust silencer |
| US5343754A (en) * | 1990-12-28 | 1994-09-06 | Hi-Stat Manufacturing Co., Inc. | Pressure transducer |
| US20040065505A1 (en) * | 2002-07-04 | 2004-04-08 | Peter Weinhold | Muffler |
| US20050011700A1 (en) * | 2003-07-14 | 2005-01-20 | Dadd Paul M. | Devices for regulating pressure and flow pulses |
| US6889500B1 (en) * | 2004-03-01 | 2005-05-10 | Roy Martinez | Engine exhaust extractor |
| US20080156579A1 (en) * | 2006-09-29 | 2008-07-03 | Denso Corporation | Air intake device |
| US7726444B1 (en) * | 2001-08-31 | 2010-06-01 | Laughlin James C | Exhaust system baffle apparatus |
| US9500108B2 (en) * | 2015-01-09 | 2016-11-22 | Flexible Metal, Inc. | Split path silencer |
-
0
- US US1797310D patent/US1797310A/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132717A (en) * | 1955-05-27 | 1964-05-12 | Bolt Beranek & Newman | Acoustically absorbent conduit |
| US3500955A (en) * | 1968-01-24 | 1970-03-17 | Sionics Inc | Firearms silencer with helical suppressor elements |
| US3966443A (en) * | 1973-04-18 | 1976-06-29 | Toyota Jidosha Kogyo Kabushiki Kaisha | Exhaust gas purifier for internal combustion engine |
| US4683978A (en) * | 1984-11-22 | 1987-08-04 | Tula Silencers (Propriety) Limited | Exhaust silencer |
| US5343754A (en) * | 1990-12-28 | 1994-09-06 | Hi-Stat Manufacturing Co., Inc. | Pressure transducer |
| US7726444B1 (en) * | 2001-08-31 | 2010-06-01 | Laughlin James C | Exhaust system baffle apparatus |
| US7073626B2 (en) * | 2002-07-04 | 2006-07-11 | 3W-Modellmotoren | Engine exhaust muffler with guide vanes imparting a successively alternating spiral swirl gas flow |
| US20040065505A1 (en) * | 2002-07-04 | 2004-04-08 | Peter Weinhold | Muffler |
| US20050011700A1 (en) * | 2003-07-14 | 2005-01-20 | Dadd Paul M. | Devices for regulating pressure and flow pulses |
| US7661509B2 (en) | 2003-07-14 | 2010-02-16 | Dadd Paul M | Devices for regulating pressure and flow pulses |
| US6889500B1 (en) * | 2004-03-01 | 2005-05-10 | Roy Martinez | Engine exhaust extractor |
| US20080156579A1 (en) * | 2006-09-29 | 2008-07-03 | Denso Corporation | Air intake device |
| US9500108B2 (en) * | 2015-01-09 | 2016-11-22 | Flexible Metal, Inc. | Split path silencer |
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