GB1045295A - Improvements in or relating to a jet noise suppression device - Google Patents
Improvements in or relating to a jet noise suppression deviceInfo
- Publication number
- GB1045295A GB1045295A GB1276064A GB1276064A GB1045295A GB 1045295 A GB1045295 A GB 1045295A GB 1276064 A GB1276064 A GB 1276064A GB 1276064 A GB1276064 A GB 1276064A GB 1045295 A GB1045295 A GB 1045295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nozzle
- vanes
- jet
- downstream end
- shroud
- 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
- 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
- F02K1/386—Introducing air inside the jet mixing devices in the jet pipe, e.g. for mixing primary and secondary flow
-
- 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
- F02K1/36—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto having an ejector
-
- 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
- F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,045,295. Jet propulsion nozzles. P. BRADSHAW. June 11, 1965 [March 25, 1964], No. 12760/64. Heading F1J. A noise suppression device for reducing the noise generated by a high velocity gaseous jet issuing into the ambient atmosphere comprises a nozzle having means to impart rotation to the gaseous jet issuing from the nozzle and an ejector shroud disposed about the nozzle. A jet propulsion engine nozzle 10 is provided at its downstream end with a series of vanes 11 which are pivotally mounted about axes 12 normal to the axis of the nozzle whereby the vanes may be moved to a position inclined at angle a to the nozzle axis whereby a rotation is imparted to the jet stream issuing from the nozzle. A shroud ring 10a is disposed around the end of the nozzle 10 and atmospheric air is drawn into the shroud by the jet stream discharging therethrough. The vanes may be fixed in the inclined position. In Fig. 3 not shown the vanes 14 are hollow and atmospheric air is caused to flow therethrough. In Figs. 4 and 5 not shown the downstream end of the nozzle is of corrugated form and a pivotally mounted vane 18 is disposed in the path of the jet stream discharging through each of the corrugations 17. A shroud ring 15a is disposed around the downstream end of the nozzle. Instead of a single vane 18 as in Fig. 4 a pair of vanes 22, 23 Fig. 7 not shown may be associated with each corrugation 17. The invention is applicable also in the case of gas turbine ducted fan engines and gas turbine by-pass engines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1276064A GB1045295A (en) | 1964-03-25 | 1964-03-25 | Improvements in or relating to a jet noise suppression device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1276064A GB1045295A (en) | 1964-03-25 | 1964-03-25 | Improvements in or relating to a jet noise suppression device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1045295A true GB1045295A (en) | 1966-10-12 |
Family
ID=10010627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1276064A Expired GB1045295A (en) | 1964-03-25 | 1964-03-25 | Improvements in or relating to a jet noise suppression device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1045295A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467990A1 (en) * | 1979-10-22 | 1981-04-30 | United Technologies Corp | SILENCER FOR GAS TURBINE |
FR2482199A1 (en) * | 1980-05-07 | 1981-11-13 | Astech | Gas turbine exhaust pipe - has double flow with central pipe having venturi fitted to outer end and included inside final exhaust |
GB2119023A (en) * | 1982-04-15 | 1983-11-09 | Secr Defence | Jet propulsion nozzle having a shroud |
US4566270A (en) * | 1981-11-03 | 1986-01-28 | Rolls-Royce Limited | Gas turbine engine infra-red radiation suppressor |
EP1191214A2 (en) * | 2000-08-31 | 2002-03-27 | General Electric Company | Exhaust nozzle with stub airfoils |
EP1870588A1 (en) * | 2006-06-19 | 2007-12-26 | Snecma | Swirling flow mixing nozzle for a turbomachine |
US7735601B1 (en) | 2005-03-15 | 2010-06-15 | Rolls-Royce Plc | Engine noise |
FR2967134A1 (en) * | 2010-11-04 | 2012-05-11 | Airbus Operations Sas | Nacelle for aircraft jet engine, has nozzle and noise reduction device that is arranged at downstream end of nozzle, where intermediate flow is provided between rest of one flow and rest of another flow in area downstream of device |
EP2497934A1 (en) * | 2011-03-07 | 2012-09-12 | EADS Construcciones Aeronauticas, S.A. | Flow evacuation system for an aircraft engine |
US20130087632A1 (en) * | 2011-10-11 | 2013-04-11 | Patrick Germain | Gas turbine engine exhaust ejector nozzle with de-swirl cascade |
WO2016140866A1 (en) | 2015-03-04 | 2016-09-09 | Sikorsky Aircraft Corporation | Gas turbine exhaust assembly |
CN107143533A (en) * | 2015-12-07 | 2017-09-08 | 张玉良 | Save injector |
-
1964
- 1964-03-25 GB GB1276064A patent/GB1045295A/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467990A1 (en) * | 1979-10-22 | 1981-04-30 | United Technologies Corp | SILENCER FOR GAS TURBINE |
FR2482199A1 (en) * | 1980-05-07 | 1981-11-13 | Astech | Gas turbine exhaust pipe - has double flow with central pipe having venturi fitted to outer end and included inside final exhaust |
US4566270A (en) * | 1981-11-03 | 1986-01-28 | Rolls-Royce Limited | Gas turbine engine infra-red radiation suppressor |
GB2119023A (en) * | 1982-04-15 | 1983-11-09 | Secr Defence | Jet propulsion nozzle having a shroud |
EP1191214A2 (en) * | 2000-08-31 | 2002-03-27 | General Electric Company | Exhaust nozzle with stub airfoils |
EP1191214A3 (en) * | 2000-08-31 | 2004-06-23 | General Electric Company | Exhaust nozzle with stub airfoils |
US7735601B1 (en) | 2005-03-15 | 2010-06-15 | Rolls-Royce Plc | Engine noise |
US7784270B2 (en) | 2006-06-19 | 2010-08-31 | Snecma | Rotary motion mixer for a converging-stream nozzle of a turbomachine |
EP1870588A1 (en) * | 2006-06-19 | 2007-12-26 | Snecma | Swirling flow mixing nozzle for a turbomachine |
FR2967134A1 (en) * | 2010-11-04 | 2012-05-11 | Airbus Operations Sas | Nacelle for aircraft jet engine, has nozzle and noise reduction device that is arranged at downstream end of nozzle, where intermediate flow is provided between rest of one flow and rest of another flow in area downstream of device |
EP2497934A1 (en) * | 2011-03-07 | 2012-09-12 | EADS Construcciones Aeronauticas, S.A. | Flow evacuation system for an aircraft engine |
US20130087632A1 (en) * | 2011-10-11 | 2013-04-11 | Patrick Germain | Gas turbine engine exhaust ejector nozzle with de-swirl cascade |
WO2016140866A1 (en) | 2015-03-04 | 2016-09-09 | Sikorsky Aircraft Corporation | Gas turbine exhaust assembly |
EP3265662A4 (en) * | 2015-03-04 | 2018-10-24 | Sikorsky Aircraft Corporation | Gas turbine exhaust assembly |
US10612421B2 (en) | 2015-03-04 | 2020-04-07 | Sikorsky Aircraft Corporation | Gas turbine exhaust assembly |
CN107143533A (en) * | 2015-12-07 | 2017-09-08 | 张玉良 | Save injector |
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