IT8621463A1 - Sistema di riduzione di rumore di eliche di aerei - Google Patents

Sistema di riduzione di rumore di eliche di aerei

Info

Publication number
IT8621463A1
IT8621463A1 IT1986A21463A IT2146386A IT8621463A1 IT 8621463 A1 IT8621463 A1 IT 8621463A1 IT 1986A21463 A IT1986A21463 A IT 1986A21463A IT 2146386 A IT2146386 A IT 2146386A IT 8621463 A1 IT8621463 A1 IT 8621463A1
Authority
IT
Italy
Prior art keywords
noise reduction
reduction system
aircraft propellers
propellers
aircraft
Prior art date
Application number
IT1986A21463A
Other languages
English (en)
Other versions
IT8621463A0 (it
IT1198021B (it
Original Assignee
Gen Electric
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 by Gen Electric filed Critical Gen Electric
Publication of IT8621463A0 publication Critical patent/IT8621463A0/it
Publication of IT8621463A1 publication Critical patent/IT8621463A1/it
Application granted granted Critical
Publication of IT1198021B publication Critical patent/IT1198021B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
IT21463/86A 1985-08-09 1986-08-08 Sistema di riduzione di rumore di eliche di aerei IT1198021B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76414485A 1985-08-09 1985-08-09

Publications (3)

Publication Number Publication Date
IT8621463A0 IT8621463A0 (it) 1986-08-08
IT8621463A1 true IT8621463A1 (it) 1988-02-08
IT1198021B IT1198021B (it) 1988-12-21

Family

ID=25069809

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21463/86A IT1198021B (it) 1985-08-09 1986-08-08 Sistema di riduzione di rumore di eliche di aerei

Country Status (7)

Country Link
JP (1) JPS6271800A (it)
CN (1) CN1010205B (it)
DE (1) DE3626192A1 (it)
FR (1) FR2586130B1 (it)
GB (1) GB2179706B (it)
IT (1) IT1198021B (it)
SE (1) SE465870B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913376A (en) * 1988-10-21 1990-04-03 Black Franklin E VTLH autogyro
US5169288A (en) * 1991-09-06 1992-12-08 General Electric Company Low noise fan assembly
AU2003218221A1 (en) 2002-03-15 2003-09-29 Robert Bosch Corporation Engine-cooling fan assembly with overlapping fans
GB0702608D0 (en) * 2007-02-10 2007-03-21 Rolls Royce Plc Aeroengine
GB2482333A (en) * 2010-07-30 2012-02-01 Ge Aviat Systems Ltd Aircraft propeller
EP3248191B1 (en) * 2015-01-20 2021-09-29 Dolby Laboratories Licensing Corporation Modeling and reduction of drone propulsion system noise
EP3390223B1 (en) * 2015-12-18 2022-10-19 Amazon Technologies, Inc. Selecting propellers for performance and noise shaping

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB492489A (en) * 1937-11-25 1938-09-21 Hermann Honnef Improvements in and relating to wind-operated power generators
GB521868A (en) * 1938-11-29 1940-06-03 Napier & Son Ltd Improvements in or relating to propelling or impelling apparatus of the axial flow type
FR2367660A1 (fr) * 1976-10-14 1978-05-12 Gueguen Alain Gilbert Application du dephasage des ondes sonores
SE433599B (sv) * 1981-03-05 1984-06-04 Volvo Penta Ab Dubbelpropellerdrev for batar
DE3519226A1 (de) * 1985-05-30 1986-12-04 Boris Alekseevič Stupino Moskovskaja oblast' Česnokov Triebwerk von luftfahrzeugen

Also Published As

Publication number Publication date
GB2179706B (en) 1990-04-18
SE8603347D0 (sv) 1986-08-07
FR2586130B1 (fr) 1989-12-22
SE465870B (sv) 1991-11-11
GB8613547D0 (en) 1986-07-09
GB2179706A (en) 1987-03-11
FR2586130A1 (fr) 1987-02-13
CN1010205B (zh) 1990-10-31
IT8621463A0 (it) 1986-08-08
CN86105565A (zh) 1987-02-04
JPS6271800A (ja) 1987-04-02
IT1198021B (it) 1988-12-21
SE8603347L (sv) 1987-02-10
DE3626192A1 (de) 1987-02-19

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