GB638954A - Noise-suppressing apparatus for use in conjunction with stationary jet propulsion engines - Google Patents
Noise-suppressing apparatus for use in conjunction with stationary jet propulsion enginesInfo
- Publication number
- GB638954A GB638954A GB822448A GB822448A GB638954A GB 638954 A GB638954 A GB 638954A GB 822448 A GB822448 A GB 822448A GB 822448 A GB822448 A GB 822448A GB 638954 A GB638954 A GB 638954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- surrounded
- noise
- conjunction
- jet engine
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/26—Ground or aircraft-carrier-deck installations for reducing engine or jet noise; Protecting airports from jet erosion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
638,954. Silencing gaseous currents. CULLUM, D. J. W. March 19, 1948, No. 8224. [Class 7 (ii)] A silencer for a jet engine under test comprises a conical passage 2 which has a venturi-shaped end 3, having the same diameter as, and which can be brought close to the issuing nozzle 1 of the jet engine. The passage 2 leads to a perforated tube 4 surrounded by sound-absorbing material and an outer casing. A baffling device 5, comprising a hit-and-miss valve or a series of baffles or bends, may be interposed. The passage 2 may be surrounded by a cooling jacket and lined with heat-protecting medium. Water may be injected by adjustable jets or pass through a tube forming a baffle. The cross-section of the passage may be rectangular or circular, and it may be mounted with vertical and lateral adjustment on a wheeled carriage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB822448A GB638954A (en) | 1948-03-19 | 1948-03-19 | Noise-suppressing apparatus for use in conjunction with stationary jet propulsion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB822448A GB638954A (en) | 1948-03-19 | 1948-03-19 | Noise-suppressing apparatus for use in conjunction with stationary jet propulsion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB638954A true GB638954A (en) | 1950-06-21 |
Family
ID=9848332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB822448A Expired GB638954A (en) | 1948-03-19 | 1948-03-19 | Noise-suppressing apparatus for use in conjunction with stationary jet propulsion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB638954A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2987136A (en) * | 1955-03-31 | 1961-06-06 | Power Jets Res & Dev Ltd | Apparatus for reducing noise |
US3011584A (en) * | 1957-12-16 | 1961-12-05 | Koppers Co Inc | Sound attenuating device |
US3270835A (en) * | 1964-06-16 | 1966-09-06 | Kramer Fritz | Device for suppressing sound and heat produced by high-velocity exhaust jets |
-
1948
- 1948-03-19 GB GB822448A patent/GB638954A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2987136A (en) * | 1955-03-31 | 1961-06-06 | Power Jets Res & Dev Ltd | Apparatus for reducing noise |
US3011584A (en) * | 1957-12-16 | 1961-12-05 | Koppers Co Inc | Sound attenuating device |
US3270835A (en) * | 1964-06-16 | 1966-09-06 | Kramer Fritz | Device for suppressing sound and heat produced by high-velocity exhaust jets |
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