GB913070A - Improvements in discharge nozzles with a view to reducing the noise of the jet - Google Patents
Improvements in discharge nozzles with a view to reducing the noise of the jetInfo
- Publication number
- GB913070A GB913070A GB2039159A GB2039159A GB913070A GB 913070 A GB913070 A GB 913070A GB 2039159 A GB2039159 A GB 2039159A GB 2039159 A GB2039159 A GB 2039159A GB 913070 A GB913070 A GB 913070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduits
- exhaust
- air
- gas discharge
- sound damping
- 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
- 239000007789 gas Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 4
- 238000013016 damping Methods 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/38—Introducing air inside the jet
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
913,070. Exhaust silencers. SOC. BERTIN & CIE. June 15, 1959 [July 1, 1958], No. 20391/59. Addition to 850,404. Class 7(2) [Also in Group XXVI] A silenced exhaust gas discharge nozzle as claimed in Claim 1 of the parent Specification which comprises lateral air conduits extending obliquely relative to the axis of the nozzle and a gas discharge passage having its inlet located between the air conduits and its outlet completely surrounding the outlet of the air conduits, has the gas discharge passage outlet arranged so that it encompasses the major part of the periphery of each of a plurality of separate air conduits. The jet pipe 1 has radial and oblique conduits 2 regularly distributed over its circumference arranged to form a peripheral gap 3 and radial passages 4 for the exit of the exhaust gases. The conduits 2 are of substantially constant cross-section or preferably slightly convergent in the direction of the air flow #. Fig. 6 shows a removable pipe designed to reduce the noise of a jet propelled aircraft on the ground. The pipe is attached to the exhaust end of the aircraft by a resilient joint 17a and comprises a divergent portion 18 to prevent back pressure on the engine. A second wall 21 which may be made of a sound damping material, e.g. a light metal or a plastic material or a material covered with a sound damping coating or paint, carries the air to the tubular conduits 20. An exhaust Venturi 23 also made of sound damping material may also be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR769273A FR73803E (en) | 1958-07-01 | 1958-07-01 | Improvement brought to the nozzles in order to reduce the noise of the jet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913070A true GB913070A (en) | 1962-12-19 |
Family
ID=8706871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2039159A Expired GB913070A (en) | 1958-07-01 | 1959-06-15 | Improvements in discharge nozzles with a view to reducing the noise of the jet |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR73803E (en) |
| GB (1) | GB913070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630403A (en) * | 2018-06-22 | 2019-12-31 | 波音公司 | Jet noise suppressor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1229337B (en) * | 1960-10-31 | 1966-11-24 | Bristol Siddeley Engines Ltd | Curved gas outlet nozzle |
| CN114046874B (en) * | 2022-01-11 | 2022-03-18 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device for measuring supersonic jet near-field noise |
-
1958
- 1958-07-01 FR FR769273A patent/FR73803E/en not_active Expired
-
1959
- 1959-06-15 GB GB2039159A patent/GB913070A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630403A (en) * | 2018-06-22 | 2019-12-31 | 波音公司 | Jet noise suppressor |
| CN110630403B (en) * | 2018-06-22 | 2024-02-09 | 波音公司 | Jet noise suppressor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR73803E (en) | 1960-09-12 |
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