GB494719A - Improvements relating to silencers serving for the passage of gaseous currents - Google Patents
Improvements relating to silencers serving for the passage of gaseous currentsInfo
- Publication number
- GB494719A GB494719A GB1192137A GB1192137A GB494719A GB 494719 A GB494719 A GB 494719A GB 1192137 A GB1192137 A GB 1192137A GB 1192137 A GB1192137 A GB 1192137A GB 494719 A GB494719 A GB 494719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spaces
- openings
- casings
- vacua
- concentric
- 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
Links
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
- F01N1/125—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels in combination with sound-absorbing materials
-
- 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
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
-
- 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
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Exhaust Silencers (AREA)
Abstract
494,719. Silencing gaseous currents. BLANCHARD, J. G. April 26, 1937, Nos. 11921 and 30012. [Class 7 (ii)] An intake- or exhaust-silencer comprises a number of concentric inner and outer casings between which the gases travel circumferentially and a space or spaces in which vacua are formed by the ejector action of the gases. The construction comprises three concentric casings 1, 2, 12, air flowing from a series of inlet openings 18 through series of openings 19, 25 and the central tube 12 to the outlet 8. The annular spaces are divided by longitudinal baffles 16, 17, 20, 21, a vacuum being formed in the smaller spaces 9a, 23 which are open to the gaseous current through openings 14, 24. The tube 12 is provided with baffles 26 which have openings of progressively larger size towards the outlet. Felt linings 27 may be provided. In a modification the inner casing 2 has conical frusta 36, 37 Fig. 3, with short tubes 38, 39 extending within the cones and a tube 40 extending from an end compartment 11 through and beyond the cone 36. Vacua are formed in the cones and compartment 11 and in the blank end of the annular chamber 9. In a further modification a pair of silencer units comprising concentric casings 51, 52 is contained in a box 50, air entering at 60, flowing round the annular spaces 56 and leaving through an end compartment 59. The casings 51 are perforated so that vacua are formed in spaces 64 which may also contain sound absorbent material 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1192137A GB494719A (en) | 1937-04-26 | 1937-04-26 | Improvements relating to silencers serving for the passage of gaseous currents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1192137A GB494719A (en) | 1937-04-26 | 1937-04-26 | Improvements relating to silencers serving for the passage of gaseous currents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB494719A true GB494719A (en) | 1938-10-26 |
Family
ID=9995072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1192137A Expired GB494719A (en) | 1937-04-26 | 1937-04-26 | Improvements relating to silencers serving for the passage of gaseous currents |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB494719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11141797B2 (en) * | 2017-08-16 | 2021-10-12 | Franz Haimer Maschinenbau Kg | Cooling device for cooling a shrink-fit chuck |
-
1937
- 1937-04-26 GB GB1192137A patent/GB494719A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11141797B2 (en) * | 2017-08-16 | 2021-10-12 | Franz Haimer Maschinenbau Kg | Cooling device for cooling a shrink-fit chuck |
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