GB1472318A - Device for silencing gaseous flow in a duct - Google Patents
Device for silencing gaseous flow in a ductInfo
- Publication number
- GB1472318A GB1472318A GB5546674A GB5546674A GB1472318A GB 1472318 A GB1472318 A GB 1472318A GB 5546674 A GB5546674 A GB 5546674A GB 5546674 A GB5546674 A GB 5546674A GB 1472318 A GB1472318 A GB 1472318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dec
- duct
- noise
- gaseous flow
- omnibus
- 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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/12—Filtering, cooling, or silencing cooling-air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
Abstract
1472318 Noise damping in blower air inlet ducts MASCHINENFABRIK AUGSBURGNURNBERG AG 23 Dec 1974 [22 Dec 1973] 55466/74 Heading B7B [Also in Division F1] Noise in a gas carrying duct 6, Fig. 1 (e.g. for supplying cooling air to a radiator 5 of an I.C. engine 3 of an omnibus 1) is absorbed by elements 8, 9, which each comprise a core 18, 19 of sound absorbent material (such as foam, glass wool or mineral wool) coated with a water and oil repellent material which itself is partly surrounded by a perforated metal sheet 28, 29 having a U-shaped cross-section. Each element 8, 9 is releasably mounted in one or two guide channels 10, 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732364215 DE2364215B1 (en) | 1973-12-22 | 1973-12-22 | Device for noise dampening in the cooling air intake duct of a fan in internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1472318A true GB1472318A (en) | 1977-05-04 |
Family
ID=5901724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5546674A Expired GB1472318A (en) | 1973-12-22 | 1974-12-23 | Device for silencing gaseous flow in a duct |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT342926B (en) |
BE (1) | BE823737A (en) |
DE (1) | DE2364215B1 (en) |
FR (1) | FR2255474B1 (en) |
GB (1) | GB1472318A (en) |
SE (1) | SE396441B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2992683A1 (en) * | 2012-06-29 | 2014-01-03 | Valeo Systemes Thermiques | Air flow guiding element for e.g. fan nozzle, of ventilation circuit of engine block cooling module of car, has cylindrical holes and slots, which are calibrated, so that acoustic impedance of wall attenuates noise generated by air flow |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2819657A1 (en) * | 1978-05-05 | 1979-11-08 | Linde Ag | Machine or engine air duct sound insulation - has walling made solely of foamed plastic, pref. polyether or polyurethane |
-
1973
- 1973-12-22 DE DE19732364215 patent/DE2364215B1/en not_active Ceased
-
1974
- 1974-12-02 AT AT961174A patent/AT342926B/en not_active IP Right Cessation
- 1974-12-16 FR FR7441427A patent/FR2255474B1/fr not_active Expired
- 1974-12-20 BE BE151841A patent/BE823737A/en not_active IP Right Cessation
- 1974-12-20 SE SE7416208A patent/SE396441B/en not_active IP Right Cessation
- 1974-12-23 GB GB5546674A patent/GB1472318A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2992683A1 (en) * | 2012-06-29 | 2014-01-03 | Valeo Systemes Thermiques | Air flow guiding element for e.g. fan nozzle, of ventilation circuit of engine block cooling module of car, has cylindrical holes and slots, which are calibrated, so that acoustic impedance of wall attenuates noise generated by air flow |
Also Published As
Publication number | Publication date |
---|---|
FR2255474A1 (en) | 1975-07-18 |
SE7416208L (en) | 1975-06-23 |
ATA961174A (en) | 1977-08-15 |
DE2364215B1 (en) | 1975-04-24 |
FR2255474B1 (en) | 1980-08-08 |
AT342926B (en) | 1978-04-25 |
BE823737A (en) | 1975-04-16 |
SE396441B (en) | 1977-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |