IT8621463A0 - Sistema di riduzione di rumore di eliche di aerei. - Google Patents

Sistema di riduzione di rumore di eliche di aerei.

Info

Publication number
IT8621463A0
IT8621463A0 IT8621463A IT2146386A IT8621463A0 IT 8621463 A0 IT8621463 A0 IT 8621463A0 IT 8621463 A IT8621463 A IT 8621463A IT 2146386 A IT2146386 A IT 2146386A IT 8621463 A0 IT8621463 A0 IT 8621463A0
Authority
IT
Italy
Prior art keywords
noise reduction
reduction system
aircraft propellers
propellers
aircraft
Prior art date
Application number
IT8621463A
Other languages
English (en)
Other versions
IT8621463A1 (it
IT1198021B (it
Inventor
Authur Paul Adamson
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 true IT8621463A0 (it) 1986-08-08
IT8621463A1 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
IT8621463A1 (it) 1988-02-08
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

Similar Documents

Publication Publication Date Title
DE3689035D1 (de) Rauschminderungssystem.
IT8423171A0 (it) Sistema di regolazione di elica.
DE3674155D1 (de) Zirkulationsgesteuertes rotorsystem fuer luftfahrzeuge.
ES2012338B3 (es) Sistema de control del agarre y conjunto para lo cual.
BR8603087A (pt) Sistema para propulsao de locomotiva
ES2014029B3 (es) Sistema de mando de los alerones hipersustentadores de una aeronave.
DE3673243D1 (de) Zweifrequenzinstrumentenlandesystem.
IT8422386A0 (it) Sistema di propulsione ad elica per aeroplano.
NO862364D0 (no) Radarsystem.
DE3683480D1 (de) Instrument-landungssystem.
DE3677315D1 (de) Flugzeugsteuersystem.
IT8921835A0 (it) Sistema di ritegno per pale di elica.
BR8707563A (pt) Sistema de propulsao para uma aeronave
IT8522931A0 (it) Sistema di paracadute e sedile eiettabile per aeromobili incorporante il medesimo.
IT1201189B (it) Sistema di controllo del rotore di un elicottero
DE3689037D1 (de) Radarsystem.
IT8220490A0 (it) Sistema azionatore ad impulsi per aeromobili.
DE3860476D1 (de) Landungssystem eines flugzeuges.
IT8621463A0 (it) Sistema di riduzione di rumore di eliche di aerei.
IT1236706B (it) Sistema sincrofasatore per turbomotore d'aeroplano.
DE3789167D1 (de) Luftfahrzeug-Kollisionswarnsystem.
IT8419678A0 (it) Sistema di interfaccia per microcalcolatori.
IT8220482A0 (it) Procedimento ed impianto per il rallentamento di veicoli.
IT8621961A0 (it) Dispositivo di sospensione su aeromobili.
IT8521003A0 (it) Sistema di controllo antighiaccio per eliche di aeromobili.