GB1375600A - - Google Patents

Info

Publication number
GB1375600A
GB1375600A GB4331672A GB4331672A GB1375600A GB 1375600 A GB1375600 A GB 1375600A GB 4331672 A GB4331672 A GB 4331672A GB 4331672 A GB4331672 A GB 4331672A GB 1375600 A GB1375600 A GB 1375600A
Authority
GB
United Kingdom
Prior art keywords
boxes
row
gases
section
side walls
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
Application number
GB4331672A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1375600A publication Critical patent/GB1375600A/en
Expired legal-status Critical Current

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

Abstract

1375600 Silencers GENERAL ELECTRIC CO 19 Sept 1972 [6 Oct 1971] 43316/72 Heading F1B A gas turbine exhaust silencer comprises a row of boxes 35 filled with acoustical absorbent thermal insulating material, the acoustically absorbent boxes being spaced apart to form gas passageways 39 and at least one contiguous row of substantially empty boxes 69 having hollow interiors and having adjacent opposite side walls aligned with the acoustically absorbent boxes to continue the gas passageways, the adjacent opposite sidewalls being formed with openings 75. The exhaust gases from the turbine pass via an exhaust plenum and transition Fig. 1 (not shown) into the passages 39 between box sections 35 which have perforated side walls 49 for low frequency sound absorption. The gases then flow via the resonator section comprising a row of boxes 69 which alternate selected frequencies. The acoustic box section and resonator section may be followed by another low frequency section consisting of the same elements. Finally the gases pass between baffles (29) for high frequency attenuation. Specification 1361526 is referred to.
GB4331672A 1971-10-06 1972-09-19 Expired GB1375600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18709071A 1971-10-06 1971-10-06

Publications (1)

Publication Number Publication Date
GB1375600A true GB1375600A (en) 1974-11-27

Family

ID=22687564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4331672A Expired GB1375600A (en) 1971-10-06 1972-09-19

Country Status (4)

Country Link
US (1) US3709319A (en)
JP (1) JPS4844612A (en)
DE (1) DE2248638A1 (en)
GB (1) GB1375600A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468964A1 (en) * 1979-10-29 1981-05-08 Deere & Co SOUNDPROOFING DEVICE IN PARTICULAR FOR THE MOTOR VEHICLE FAN
US4824530A (en) * 1985-11-27 1989-04-25 Mitsubishi Kinzoku Kabushiki Kaisha Method of producing heat-transfer material

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122912A (en) * 1977-03-23 1978-10-31 The United States Of America As Represented By The Secretary Of The Navy Dry cooled jet aircraft runup noise suppression system
JPH0616971B2 (en) * 1985-01-30 1994-03-09 株式会社井上ジャパックス研究所 Drilling electric discharge machine
US4747467A (en) * 1986-04-01 1988-05-31 Allied-Signal Inc. Turbine engine noise suppression apparatus and methods
JP3310931B2 (en) * 1997-09-25 2002-08-05 三菱重工業株式会社 Gas turbine exhaust flue
CH691191A5 (en) * 2000-01-06 2001-05-15 Rudolf Ing Htl Gehring Rotating joint designed as slide bearing, comprising inner or outer ring made of heavy sheet metal
EP1213538B1 (en) 2000-12-08 2006-09-06 Alstom Technology Ltd Exhaust gas system with Helmholtz resonator
US8087491B2 (en) 2010-01-08 2012-01-03 General Electric Company Vane type silencers in elbow for gas turbine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324706A (en) * 1941-01-02 1943-07-20 Jacobson & Company Inc Method and means for acoustical treatment
GB638407A (en) * 1948-05-27 1950-06-07 Douglas Jack Wayth Cullum Noise-suppressing apparatus for use in conjunction with stationary jet propulsion engines
US2842222A (en) * 1954-09-14 1958-07-08 Burnett Estes Acoustical test cell structures
US2959243A (en) * 1956-03-29 1960-11-08 Gen Sound Control Inc Sound absorbing structure
US2884086A (en) * 1956-04-24 1959-04-28 John T Welbourn Sound-absorbing housing and structure
US3347338A (en) * 1965-06-28 1967-10-17 Albert F Childress Sound suppressor with baffle grids arranged across fluid stream passageway

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468964A1 (en) * 1979-10-29 1981-05-08 Deere & Co SOUNDPROOFING DEVICE IN PARTICULAR FOR THE MOTOR VEHICLE FAN
US4824530A (en) * 1985-11-27 1989-04-25 Mitsubishi Kinzoku Kabushiki Kaisha Method of producing heat-transfer material

Also Published As

Publication number Publication date
JPS4844612A (en) 1973-06-27
US3709319A (en) 1973-01-09
DE2248638A1 (en) 1973-04-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees