CA1319357C - Counterrotating aircraft propulsor blades - Google Patents

Counterrotating aircraft propulsor blades

Info

Publication number: CA1319357C
Authority: CA; Canada
Prior art keywords: blade; spar; leading edge; trailing edge; cavity
Prior art date: 1986-11-19
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 - Fee Related

Application number

CA000556028A

Other languages

English (en)

French (fr)

Inventor

Martin C. Hemsworth

Sidney B. Elston, Iii

Wu-Yang Tseng

Joey L. Nelson

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

General Electric Co

Original Assignee

General Electric Co

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.)

1986-11-19

Filing date

1988-01-07

Publication date

1993-06-22

1987-11-14 Priority to DE19873738785 priority Critical patent/DE3738785A1/de

1987-11-16 Priority to SE8704481A priority patent/SE8704481L/

1987-11-18 Priority to GB8727010A priority patent/GB2197913B/en

1987-11-19 Priority to JP62290799A priority patent/JPS63173793A/ja

1987-11-19 Priority to FR8715983A priority patent/FR2608994A1/fr

1988-01-07 Application filed by General Electric Co filed Critical General Electric Co

1988-01-07 Priority to CA000556028A priority patent/CA1319357C/en

1988-02-12 Priority to US07/157,179 priority patent/US4784575A/en

1991-02-26 Priority to US07/660,459 priority patent/USRE34207E/en

1993-06-22 Application granted granted Critical

1993-06-22 Publication of CA1319357C publication Critical patent/CA1319357C/en

2010-06-22 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000002131 composite material Substances 0.000 claims description 27
230000003247 decreasing effect Effects 0.000 claims description 16
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XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
239000000835 fiber Substances 0.000 description 19
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
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OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
239000000853 adhesive Substances 0.000 description 2
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ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
239000004593 Epoxy Substances 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
102000004338 Transferrin Human genes 0.000 description 1
108090000901 Transferrin Proteins 0.000 description 1
XDHFUDFPYZAOOH-OCPPCWRMSA-O [n'-[3-[1-[(2s)-1-[4-[4-[4-[(2s)-2-[4-[3-[[amino(azaniumyl)methylidene]amino]propyl]triazol-1-yl]propanoyl]piperazin-1-yl]-6-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethylamino]-1,3,5-triazin-2-yl]piperazin-1-yl]-1-oxopropan-2-yl]triazol-4-yl]propyl]carbamimido Chemical compound [Cl-].N1([C@@H](C)C(=O)N2CCN(CC2)C=2N=C(NCCOCCOCCOCC#C)N=C(N=2)N2CCN(CC2)C(=O)[C@H](C)N2N=NC(CCCN=C(N)[NH3+])=C2)C=C(CCCN=C(N)[NH3+])N=N1 XDHFUDFPYZAOOH-OCPPCWRMSA-O 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
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229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
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239000011347 resin Substances 0.000 description 1
230000000452 restraining effect Effects 0.000 description 1
238000007493 shaping process Methods 0.000 description 1
230000003068 static effect Effects 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
229920003002 synthetic resin Polymers 0.000 description 1
239000000057 synthetic resin Substances 0.000 description 1
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239000012581 transferrin Substances 0.000 description 1

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
- B64C11/16—Blades
- B64C11/18—Aerodynamic features
- 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
- B64C11/16—Blades
- B64C11/20—Constructional features

Landscapes

Engineering & Computer Science (AREA)
Aviation & Aerospace Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Retarders (AREA)
General Details Of Gearings (AREA)

CA000556028A 1986-11-19 1988-01-07 Counterrotating aircraft propulsor blades Expired - Fee Related CA1319357C (en)

Priority Applications (8)

Application Number	Priority Date	Filing Date	Title
DE19873738785 DE3738785A1 (de)	1986-11-19	1987-11-14	Gegenlaeufig rotierende flugzeug-antriebsschaufeln
SE8704481A SE8704481L (sv)	1986-11-19	1987-11-16	Motroterande flygplanspropellrar
GB8727010A GB2197913B (en)	1986-11-19	1987-11-18	Counterrotating aircraft propulsor blades
FR8715983A FR2608994A1 (fr)	1986-11-19	1987-11-19	Pales de propulseur aeronautique a contrarotation
JP62290799A JPS63173793A (ja)	1986-11-19	1987-11-19	航空機用二重反転推進装置羽根
CA000556028A CA1319357C (en)	1986-11-19	1988-01-07	Counterrotating aircraft propulsor blades
US07/157,179 US4784575A (en)	1986-11-19	1988-02-12	Counterrotating aircraft propulsor blades
US07/660,459 USRE34207E (en)	1986-11-19	1991-02-26	Counterrotating aircraft propulsor blades

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US93242786A	1986-11-19	1986-11-19
CA000556028A CA1319357C (en)	1986-11-19	1988-01-07	Counterrotating aircraft propulsor blades

Publications (1)

Publication Number	Publication Date
CA1319357C true CA1319357C (en)	1993-06-22

Family

ID=25671654

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000556028A Expired - Fee Related CA1319357C (en)	1986-11-19	1988-01-07	Counterrotating aircraft propulsor blades

Country Status (6)

Country	Link
JP (1)	JPS63173793A (ja)
CA (1)	CA1319357C (ja)
DE (1)	DE3738785A1 (ja)
FR (1)	FR2608994A1 (ja)
GB (1)	GB2197913B (ja)
SE (1)	SE8704481L (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2220712B (en) *	1988-07-13	1992-12-09	Rolls Royce Plc	Open rotor blading
CN1042692A (zh) *	1988-11-14	1990-06-06	通用电气公司	反转的飞机螺旋桨叶
DE4411679C1 (de) *	1994-04-05	1994-12-01	Mtu Muenchen Gmbh	Schaufelblatt in Faserverbundbauweise mit Schutzprofil
US6071077A (en) *	1996-04-09	2000-06-06	Rolls-Royce Plc	Swept fan blade
GB2482545B (en)	2010-08-06	2017-05-03	Ge Aviat Systems Ltd	Aircraft propellers with composite blades mounted to a single propeller hub
FR2976551B1 (fr) *	2011-06-20	2013-06-28	Snecma	Pale, en particulier a calage variable, helice comprenant de telles pales, et turbomachine correspondante

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR876961A (fr) *	1940-11-11	1942-11-24		Pale creuse d'hélice aérienne, équilibrée au moyen de contrepoids variables
US2306177A (en) *	1941-05-22	1942-12-22	Otto W Mattson	Propeller blade
US2698666A (en) *	1952-07-01	1955-01-04	Gen Motors Corp	Propeller blade
GB831380A (en) *	1957-05-09	1960-03-30	United Aircraft Corp	Aircraft sustaining or propelling blades
GB1083175A (en) *	1965-08-13	1967-09-13	British Aircraft Corp Ltd	Blades for high-speed axial-flow compressors
GB1276356A (en) *	1969-07-18	1972-06-01	Rolls Royce	Method of forming an aerofoil-shaped blade
US3647317A (en) *	1970-03-19	1972-03-07	Fluor Prod Co Inc	Fiberglass fan assembly
US3903578A (en) *	1972-02-28	1975-09-09	United Aircraft Corp	Composite fan blade and method of construction
US3799701A (en) *	1972-02-28	1974-03-26	United Aircraft Corp	Composite fan blade and method of construction
FR2195255A5 (ja) *	1972-08-04	1974-03-01	Snecma
US4407635A (en) *	1979-01-08	1983-10-04	Trw Inc.	Aircraft propeller assembly with composite blades
US4370097A (en) *	1979-07-16	1983-01-25	United Technologies Corporation	Noise reduction means for prop-fan
BR8105757A (pt) *	1980-10-02	1982-05-25	United Technologies Corp	Processo pra a producao de um aerofolio
CA1270802A (en) *	1985-02-07	1990-06-26	Edward A. Rothman	Prop-fan with improved stability

1987
- 1987-11-14 DE DE19873738785 patent/DE3738785A1/de not_active Withdrawn
- 1987-11-16 SE SE8704481A patent/SE8704481L/ not_active Application Discontinuation
- 1987-11-18 GB GB8727010A patent/GB2197913B/en not_active Expired - Lifetime
- 1987-11-19 JP JP62290799A patent/JPS63173793A/ja active Pending
- 1987-11-19 FR FR8715983A patent/FR2608994A1/fr not_active Withdrawn
1988
- 1988-01-07 CA CA000556028A patent/CA1319357C/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
SE8704481D0 (sv)	1987-11-16
JPS63173793A (ja)	1988-07-18
GB8727010D0 (en)	1987-12-23
SE8704481L (sv)	1988-05-20
FR2608994A1 (fr)	1988-07-01
GB2197913A (en)	1988-06-02
GB2197913B (en)	1991-07-31
DE3738785A1 (de)	1988-05-26

Legal Events

Date	Code	Title	Description
1995-12-24	MKLA	Lapsed

Publication	Publication Date	Title
US4784575A (en)	1988-11-15	Counterrotating aircraft propulsor blades
JP3989576B2 (ja)	2007-10-10	ガスタービン用の部分的に金属製の翼
EP0018820B1 (en)	1985-01-30	Ducted-propeller aircraft
EP3441305B1 (en)	2023-09-27	Low-noise airfoil for an open rotor
US5190441A (en)	1993-03-02	Noise reduction in aircraft propellers
US7229251B2 (en)	2007-06-12	Rotor hub fairing system for a counter-rotating, coaxial rotor system
US4971641A (en)	1990-11-20	Method of making counterrotating aircraft propeller blades
US5340280A (en)	1994-08-23	Dovetail attachment for composite blade and method for making
US4408958A (en)	1983-10-11	Wind turbine blade
JP3924333B2 (ja)	2007-06-06	複合ブレード
CA1270802A (en)	1990-06-26	Prop-fan with improved stability
JP2673156B2 (ja)	1997-11-05	ファンブレード
AU1999592A (en)	1993-01-12	Propulsive thrust ring system
USRE34207E (en)	1993-03-30	Counterrotating aircraft propulsor blades
WO1998030446A2 (en)	1998-07-16	Variable pitch aircraft propeller
WO1998030446A9 (en)	1999-01-14	Variable pitch aircraft propeller
US5562416A (en)	1996-10-08	Helicopter rotor blade mounting assembly
CA1319357C (en)	1993-06-22	Counterrotating aircraft propulsor blades
US20210221491A1 (en)	2021-07-22	Fuselage shield for an aircraft with an unducted engine
CA2203816C (en)	2006-02-14	Propellers
GB2224784A (en)	1990-05-16	Propeller blades
US6364615B1 (en)	2002-04-02	Blade for the rotary wings of an aircraft
US11814174B2 (en)	2023-11-14	Layered fuselage shield
US4795308A (en)	1989-01-03	Obstacle in front of a propeller
US20050175458A1 (en)	2005-08-11	Propeller, propeller propulsion system and vessel comprising propulsion system